fv8440-um-20

Page I of IV

8440

USER MANUAL

file: fv8440-um-20.pdfversion: 2.0

USER MANUAL 8440, © F&V s.r.l. All rights reserved. — January 27, 2011

CONTENTS Page II of IV

Contents

1 General warnings 31.1 User Manual Target . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.2 Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.3 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.4 Dismantling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.5 Copyright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Introduction 62.1 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.2 Technical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2.1 Hardware specifications . . . . . . . . . . . . . . . . . . . . . . . . 82.3 Instrument powering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122.4 Description of Control Devices and Interfaces . . . . . . . . . . . . . . . 14

2.4.1 Control Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142.4.2 Instrument interfaces: tranducer inputs . . . . . . . . . . . . . . . 162.4.3 Instrument interfaces: left cover . . . . . . . . . . . . . . . . . . . 162.4.4 Remote interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.5 Contents of the package . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3 Setting and functions 223.1 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233.2 Channel Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.2.1 Vibrational mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 253.2.2 Acoustic mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.3 Measure Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273.3.1 Measure Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283.3.2 Start Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303.3.3 Buffer Step . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303.3.4 Measure Lenght . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303.3.5 DAT Recorder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303.3.6 Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

3.4 Data Manage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343.4.1 New Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353.4.2 Change Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35


CONTENTS Page III of IV

3.4.3 Delete Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353.4.4 Load File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353.4.5 Format Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363.4.6 Free space card . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

3.5 General Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373.5.1 Time/Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383.5.2 Battery mgnt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383.5.3 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383.5.4 Link:RADIO/radioOFF/CAB.115K . . . . . . . . . . . . . . . . . 393.5.5 Firmware settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 393.5.6 Info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4 Stand-alone instrument calibration 42

5 Firmware Modules 455.1 SLM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 465.2 4th Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 465.3 Octave Band an. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 475.4 Datalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 475.5 HVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 475.6 BLD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 485.7 DAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 485.8 Predict . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495.9 UART Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495.10 Bluetooth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495.11 Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495.12 FFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

6 Tutorials 50

7 Getting help 55

A Appendix A 56A.1 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

A.1.1 Definitions of the results available in VIBRA MODE . . . . . . . 56A.1.2 Definitions of the results available in ACOUSTIC MODE . . . . . 58A.1.3 Octave analisys band frequencies . . . . . . . . . . . . . . . . . . 60


LIST OF FIGURES Page IV of IV

List of Figures

2.1 The Control devices and push-bottons . . . . . . . . . . . . . . . . . . . 152.2 The BNC connector: side view . . . . . . . . . . . . . . . . . . . . . . . . 162.3 The BNC connector: frontal view . . . . . . . . . . . . . . . . . . . . . . 162.4 The LEMO 0B304 connector: frontal view . . . . . . . . . . . . . . . . . 172.5 The view of the sockets on the instrument left side . . . . . . . . . . . . 182.6 The DC connector power/charge battery . . . . . . . . . . . . . . . . . . 182.7 The Auxiliary port functions . . . . . . . . . . . . . . . . . . . . . . . . . 192.8 Auxiliary port: MiniDIN pinout . . . . . . . . . . . . . . . . . . . . . . . 192.9 8440 connected with microphone and accelerometers . . . . . . . . . . . 21

3.1 The trigger parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34


LIST OF FIGURES LIST OF FIGURES Page 1 of 61

Description of warning symbols

DANGER

Important warning about the incorrect usage of theinstrument to be avoided

IMPORTANT

Important information necessary for correctinstrument usage

CAUTION

Warning of a possible danger

MANDATORY

Action that must be execute, mandatory, for thecorrect use of the instrument

PROHIBITION

Important note about actions to be avoided


LIST OF FIGURES LIST OF FIGURES Page 2 of 61

ADVICE

Useful hints for the instrument usage


General warnings Page 3 of 61

Chapter 1

General warnings

1.1 User Manual Target

This User Manual is appointed to:

• Handlers

• Carriers

• Dismantlers

• Users

This User Manual is not appointed to:

• Installers

• Repairers

1.2 Caution

IMPORTANT

Many parts of system may be damaged byelectrostatic charges.

Keep the unit away from the direct sunlight, theradiator heat sources and dusty or humid places.


General warnings Maintenance Page 4 of 61

PROHIBITION

Do not approach the system with electromagneticfield sources.

Do not expose the unit to rain or moisture.Do not repair by yourself. Refer all servicing to

qualified service personnel.

DANGER

It’s possible that the measurement procedures maybe strongly influenced by electromagnetic fields:

when go measuring switch-off any instrument thatemit radiation (like cellular telephones), or to

place oneself at a safe distance.

PROHIBITION

To avoid using and storing the SecureDigital™ where it may be exposed to static

electricity or electrical interference

1.3 Maintenance

IMPORTANT

All maintenance works must be performed bypersonnel with the necessary experience and

technical skills: contact Authorized Centrewww.effev.it


General warnings Dismantling Page 5 of 61

• Make only cleaning operations of the instrument with a dry, soft cloth. Do not usesolvents as alcohol or gasoline.

1.4 Dismantling

MANDATORY

All dismantling works must be performed bypersonnel with the necessary experience and

technical skills: contact Authorized Centrewww.effev.it

• Do not open or destroy batteries. Escaping elecrolyte can cause injury to the skinand eyes. It may be toxic.

• Recycle materials and components in accordance with your local regulations.

1.5 Copyright

© F&V s.r.l. January 27, 2011. All rights reserved.

No part of this pubblication may be reproduced or transmitted, in any form or by anymeans, electronic, mechanical, photocopying, recording or otherwise, without the priorpermission of F&V s.r.l..

G4™ software is subject to copyright. All rights are reserved. No part of this softwaremay be modified without the prior permission of F&V s.r.l..

Bluetooth™, Windows™, Digicom™, Secure Digital™and Microsoft Excel™are trademarks orregistered trademarks.

F&V [email protected]


Introduction Page 6 of 61

Chapter 2

Introduction

8440 is a portable, digital, sound and vibration meter and analyser. It has a four channelarchitecture and integrates mass storage recording capability.

Vibration analysis fulfils requirements according to ISO 2631-1 and ISO 5349 standards.Sound analysis fulfils class 1 requirements according to IEC 61672 and IEC 61260standards.

Four acquisition channels allows to contemporaneously perform both vibration and soundmeasurements with 24 bit, 48 kHz converters, being able to monitor and record signalswith band from 22 kHz to 0.01 Hz.

Moreover, a large removable memory (Secure Digital™) ensure powerful logging and datarecording capability for all four channel.

Wireless Bluetooth™ connectivity allows to configure, organize and store measured dataand instrument configuration with a remote terminal like a laptop PCA.

8440 has a low-consuption processor with great capabilities, ensuring real time analysissuch as 1/3 octave real time analysis (according to IEC 61260) on the whole band 0.63 Hz÷ 22 kHz for every acquisition channel.

8440 includes an advanced battery charging/managing system, allowing hot-swap frominternal to external power supply.

2.1 Characteristics

• Four simultaneous acquisition channels with 0.01 Hz ÷ 22 kHz band.

• Vibration measurements according to ISO 8041 (weighting filters and dosimetriesincluded).

• Sound measurements according to EN 61672-1, class 1.

• Removable mass memory 4 GB Secure Digital™memory card.


Introduction Technical specification Page 7 of 61

• 1/1 octave and 1/3 octave real time analysis simultaneously for all four channel(according to EN 61672-1) in 0.5 Hz ÷ 22 kHz band.

• Wireless Bluetooth™ communication (Ver. 2.0, 100 m) allows to link 8440 with aremote terminal (laptop PC).

• PC software, compatible with Windows™, allows to configure the instrument andto acquire real time data via Bluetooth™ connectivity.

• Easy to update firmware, via Secure Digital™memory card.

2.2 Technical specification

Input: 4 input channel (one BNC port and one LEMO port compatible with 4poles 0B) with power supply for accelerometers and microphones (specificationsDeltatron/ICP Copyright ©).

Dynamic range analisys mode: > 102 dB, 4 24 bit converters, input sensitivity2.5 Vp−p, two measure range can be selected indipendently for each channel.

Frequency range: 0.01 Hz ÷ 22 kHz, sampling (−3 dB) 48 kHz

User interface: five pushbuttons keyboard, LCD 20 × 4 alphanumeric, 1 L.E.D.indicating battery recharge.

Mass memory storage: Removable Secure Digital™ (up to 4 GB);

Interfaces: Bluetooth™ (profile: SPP);

Power supply: built-in single cell Lithium-Ion battery 2600 mAh. Externalpower/charge battery adapter: 9 ÷ 30 V DC (0.5 A max). The charging time,approximately, is:

• 5 hours with charge battery adapter;

DANGER

The appropriate ambient temperature range forbattery charging is: 5 C ÷ 25 C.

The product complies with the requirements of EMC 89/336/CEE.



2.2.1 Hardware specifications

Electric specifications

Signal input (single channel):

Input impedance: 50 kΩ / 120 pF (typical)

Polarization: 28 V / 2 mA (constant current generator)

Acquisition setup time: 5 s

Sensitivity (input max level):

• (range LO: 115 dB / 56.2 m/s2): 1.50 Vp−p, 0.1 Hz ÷ 20 kHz band

• (range HI: 140 dB / 1000 m/s2): 17.0 Vp−p, 0.1 Hz ÷ 20 kHz band

Crosstalk among channels: >80 dB @ 1 kHz

Overload: A/D converters have a digital integrated overload system. Overload controlof transducers polarization on channels 2, 3 and 4 (>20 V for 10 s)

A/D acquisition system: 4 × 24 bits A/D converter with built-in antialias digitalfilter

Sampling frequency: 48 kHz (antialiasing filters 25 kHz)

Passband: 0.01 Hz ÷ 20 kHz

Total linearity (mode analyzer @ 1 kHz): >100 dB relative, for each measuringrange (< ±0.5 dB)

Input accepted levels (Headroom, mode analyzer @ 1 kHz): from −95 dB to+5 dB relative to the selected measuring range

Basic accuracy: < ±0.3 dB @ reference temperature (23 C) in 115 dB range(acoustic measuring) in 20 Hz ÷ 20 kHz band with Lin. filter.

Full temperature range accuracy: < ±0.4 dB @ temperatures within −10 C ÷50 C range in 115 dB range (acoustic measuring) in 20 Hz ÷ 20 kHz band withLin. filter.

Amplitude indication stability: ±0.2 dB

Frequency indication stability: 0.02

Index Protection: IP65



Temperature range (usage): −10 C ÷ 50C.

Temperature range (storage): −20 C ÷ 70C.

Humidity: 90% @ 30 C not condensing

Size (without transducer and preamplifier): 165 × 95 × 42 mm

Weight (without transducer and preamplifier): 500 g

Power supply 12 V (±10%):Battery charger (instrument off) <300 mAInstrument in metre mode <150 mAInstrument in analyzer mode <200 mA

Measure linearity: To be verified basing on official certified calibration laboratory.

According with EN61010-1 safety standard, 8440 complies with Cat. II safety class fordevices with signals less than 50 Vrms. 8440 instrument accepts input signals in 0 ÷30 V range. It meets EMC 89/336/CEE standard (In Italy, DL 615, 12/11/96, C).

IMPORTANT

F&V s.r.l. ensures 8440 meets EMC standardonly using original accessories and power supplying

with battery or the original battery charger.

Functional specifications for vibration analysis

8440 meets Type 1 according to ISO 8041, ISO 2631-1 and ISO 5349 standards.

Data refers to 100 mV/g sensitivity.

Measuring range: LO: 56.2 ms−2, HI: 1000 ms−2, (respectively 155 dB and 180 dBreferred to 10−6 ms−2).

Measurement linearity: To be verified basing on official certified calibrationlaboratory.

Measuring frequency range: from 0.1 Hz to 20 kHz (HP1 filter) ±1 dB

Acceleration measuring Basic Error: < ±0.8 dB

Pre-warm-up time (accelerometers hot plug): 25 s



Calibration (in situ):

• Direct: by an external calibrator

• Indirect: by manually typing accelerometer declared sensitivity

Electric noise (reference for underload detection):

Wb filter < 8 µVrms

Wc filter < 8 µVrms

Wd filter < 8 µVrms

Wh filter < 8 µVrms

Wm filter < 8 µVrms

Wk filter < 8 µVrms

Digital filters

Filters IIR fully meet (amplitude and phase) to standard specifications, ripple inpassband: ±0.2 dB.

High pass: HP1 high-pass first-order 0.1 Hz

Weighting (meter mode):

Wb filtering meets ISO 8041 standardWc filtering meets ISO 8041 standardWd filtering meets ISO 8041 standardWh filtering meets ISO 8041 standardWm filtering meets ISO 8041 standardWk filtering meets ISO 8041 standard

1 octave filter: 15 bands filtering. Bands are centered from 1 Hz to 16 kHz and meettype 1 according to EN 61260 standard, IIR filters fully comply with amplitudeand phase

1/3 octave filter: 45 bands filtering. Bands are centered from 0.63 Hz to 22 kHzand meet type 1 according to EN 61260 standard, IIR filters fully comply withamplitude and phase

Rms and Peak-Peak detector: digital

Time weighting characteristic: linear average with variable time constant (from100 ms to 10 s



Functional specifications for acoustic analysis

8440 meets Type 1 according:

• to ISO 61672-1 standard as sound level meter

• to EN 61260 standard as 1 octave and 1/3 octave analyzer.

Data refers to 32 mV/Pa sensitivity.

Measurement linearity (Leq filter):A weighting range LO: 115 dB min 25 dB max 115 dBC weighting range LO: 115 dB min 26 dB max 115 dBLIN weighting range LO: 115 dB min 35 dB max 115 dBA weighting range HI: 140 dB min 40 dB max 140 dBC weighting range HI: 140 dB min 40 dB max 140 dBLIN weighting range HI: 140 dB min 40 dB max 140 dB

Measuring frequency range: from 10 Hz to 20 kHz (LIN filter) ±1 dB

IMPORTANT

using different transducers and weighting filters themeasuring range can stretch up to

0.08 Hz ÷ 20 kHz

Acoustic pressure measuring Basic Error: < ±0.8 dB

Pre-warm-up time (microphone hot plug): 25 s

Calibration (in situ):

• Direct: by an external calibrator (1000 Hz, 94 dB referred to 20 µPa)

• Indirect: by manually typing transducer declared sensitivity

Temperature: < 0.7 dB from −10 C to 50 C

Humidity: < 0.76 dB from 30% to 90% RH @ 40 C, 1 kHz

Further indications: • Internal battery charge status

• Underrange

• Signal peak overload


Introduction Instrument powering Page 12 of 61

• Polarization overload (> 18 V for 0.5 s)

Electric noise (reference for underrange detection):LIN filter < 18 µVrms

A filter < 8 µVrms

C filter < 9 µVrms

Digital filters

Filters IIR fully meet (amplitude and phase) to standard specifications, ripple inpassband: ±0.2 dB.

Weighting (meter mode):LIN filtering meets type 1 according to EN 61672-1 (filter ’Z’)A filtering meets type 1 according to EN 61672-1 (filter ’A’)C filtering meets type 1 according to EN 61672-1 (filter ’C’)

1 octave filter: 11 bands filtering. Bands are centered from 20 Hz to 16 kHz and meettype 1 according to EN 61260 standard, IIR filters fully comply with amplitudeand phase

1/3 octave filter: 33 bands filtering. Bands are centered from 16 Hz to 22 kHzand meet type 1 according to EN 61260 standard, IIR filters fully comply withamplitude and phase

Rms and Peak-Peak detector: digital, 0.01 dB resolution, unlimited Crest Factor

Time weighting characteristic:’S’ meets type 1 according to EN 61672-1 standard’F’ meets type 1 according to EN 61672-1 standard’I’ meets type 1 according to EN 61672-1 standard

Primary indicator range (EN 61672-1): 140 dB

Linearity range (EN 61672-1, for HI: 140 dB range, weighting A): from 40 dBto 140 dB

Pulse range (EN 61672-1, for HI: 140 dB range, weighting A): from 40 dB to145 dB

2.3 Instrument powering

8440 is powered from:

• internal rechargeable Lithium-ion battery 2600 mAh.


Introduction Instrument powering Page 13 of 61

• external power/charge battery and adapter 9 ÷ 30 V DC (0.5 A max)

IMPORTANT

Use the DC adapter only for recharge the battery.Since the DC adapter can to create interferences

for to measuring procedures, only use battery powersupply during measuring. If more larger batteriesare needed (e.g. for long measuring procedures),

use an external Lead Acid Battery 12 V

CAUTION

Use the DC adapter supplied with 8440 or anotherwith the same power and maximum voltage (MAX

EXTERNAL VOLTAGE = 30 V)

PROHIBITION

The internal battery pack must not be tampered.

The fully charged battery ensures 6 ÷ 7 hours under the worst conditions of work. Withexternal power supply or if the instrument is not used for long time, one should disconnectthe battery using the battery switch, as described in 2.4.2. The battery ensures 8 ÷ 10hours of typical work.

The battery status can be checked by General Setting menu. The charge of battery areexpressed in percentage (see the sublist in the following picture):

MEASURE SETTING

DATA MANAGE

→ GENERAL SETTING

INFO

Time/Date

→ Battery MGNT:---%

Calibration

Bluetooth: ON/OFF

→ Battery Level: 96.1%


Introduction Description of Control Devices and Interfaces Page 14 of 61

During battery recharge the L.E.D. on the left side of the instrument is turned on.The storage battery on the display is represented with level indicator ( = 100%,= 75%, = 50%, = 25%, near to 0%): this indicator provide a indicative level ofbattery. When the battery is running very low the is displayed on the screen: after ashort time 8440 will switch-off).

2.4 Description of Control Devices and Interfaces

2.4.1 Control Devices

Description of keyboard on the instrument front panel:

1. ON: Hold down ON for some time (typically 2 ÷ 3 s) to turn on the instrument(the display turn on). Further the push-botton ON allows to confirm (ENTER)the function or mode on the display.

2. MOFF: Press Shift JM + MOFF to swich-off the instrument.

3. N (ARROW UP): Press N to:

• scroll the menu and submenu on the display;

• edit files;

• set numericals parameters.

4. HM OFF(ARROW DOWN): Press H to:

• scroll the menu and submenu on the display;

• edit files;


5. JM (ARROW LEFT): Press J to:

• exit from submenu;

• edit files;


6. I‖ (ARROW RIGHT): Press I to:

• select a sublist;

• edit files;


7. JM (SHIFT): Press and hold down JM with an other push-button to obtain thefunction described below:



Figure 2.1: The Control devices and push-bottons

8. (STOP): Press JM + N to stop the measurement’s operations.

9. ‖I (PAUSE):

• Press JM + ‖I to STOP temporarily the measurement’s operation PAUSE.

10. ‖I (PLAY): Press I to start measuring, see 6

•

For further information see 6.



Figure 2.2: The BNC connector: side view

Figure 2.3: The BNC connector: frontal view

2.4.2 Instrument interfaces: tranducer inputs

Description of the sockets on the top cover instrument:

• BNC Connector: input signal Channel 1, (see figure 2.2)

– Central Pin: BNC input (Channel 1);

– Shield Pin: BNC ground.

• LEMO Connector 0B.304: input singal Channels 2,3 and 4 (see figure 2.4)

– pin number 1: input for Channel 4;



– pin number 4: signal ground for Channels 2,3,4;

– shield: ground connected to pin number 4.

2.4.3 Instrument interfaces: left cover

Description of the sockets/devices on the left cover instrument:(figure 2.5)

• RESET push-botton: allows switch-off the instrument in any conditions;

• Secure Digital™ (removable memory) connector;

• LED RED: when one recharge the battery the Led turn on;



Figure 2.4: The LEMO 0B304 connector: frontal view

• SWITCH OFF BATTERY: with swicth off the internal battery is disabled(storage long time instrument or external power supply)

• Plug External power/charge battery adapter: use the voltage specified at2.3 (9 ÷ 30 V DC (0.5 A max))

Description of the plug power, see figure 2.6:

– Internal Pin: earth connection

– Shield: positive connection

• AUXILIARY PORT: MiniDIN connector enables several funcionalitiessupported by dedicated firmware modules, see figure 2.7.MiniDIN Pinout, see figure 2.8:

– pin number 1: input analog to digital converter (ADC);

– pin number 2: output for Trigger out signal (Low 0V, High 3.3V);

– pin number 3: input RPM counter, Trigger input signal (Low 0V, High 3.3V);

– pin number 4: main supply (3.2 ÷ 6.5 V);

– pin number 5: reserved SPI port;



– pin number 8, shield: ground.

CAUTION

Since the Auxiliary Port manage CMOS 3.3Voltlow power signals directly from the CPU, damagemay occurs if connected unproperly: use only plug

cables, adapters and accessories delivered orapproved by F&V s.r.l.



Figure 2.5: The view of the sockets on the instrument left side

Figure 2.6: The DC connector power/charge battery

2.4.4 Remote interfaces

The working and configurations modes of 8440 are:

• 8440 instrument stand alone, see figure 2.9;

• 8440 instrument stand alone and setup configuration on PC (Bluetooth™ connec-tion OFF), see figure 2.9;

Since 8440 is a really flexible instrument, it’s possible:

1. to make the setup configuration instrument by PC with G4™ Software orusing DNA (Noise & Vibration Works™) from LakeView Software (please referto DNA user manual);

2. to save the setup configuration file with extension .avs on Secure Digital™;

3. to insert the Secure Digital™ into 8440 and load the setup configuration fileby Setup menu.



Figure 2.7: The Auxiliary port functions

Figure 2.8: Auxiliary port: MiniDIN pinout

IMPORTANT

Although any Bluetooth™ device should becompatible, problems have been found with products

with driver operating fuctionalities not compatiblewith 8440 software. F&V s.r.l.assures full

compatibility and faultless working of every featureusing Digicom™ EDR100 Bluetooth™ interfaces,which has been completely tested in any operating

condition. See G4™ User Manual

• 8440 instrument and G4™ software (Bluetooth™ connection ON) with themeasuring control from the PC (with G4™ software), see figure 2.9 and see


Introduction Contents of the package Page 20 of 61

G4™ User Manual. This can be done also using DNA (Noise & Vibration Works™)from LakeView (please refer to its user manual);

8440 with G4™ software, allows remote control (in real time) all the functions,the only exception being Data Manage and Data Recorder.

IMPORTANT

It is possible to change the instrumentconfiguration by PC and then to transfer the

Secure Digital™ on the instrument:

• with only one Secure Digital™ it’s possibleto make the configuration of many differentsinstruments;

• with only one instrument it’s possible tomake the configuration of many differentsSecure Digital™: DIFFERENT USERS, WITHTHEIR OWN Secure Digital™ and THEIROWN CONFIGURATION, can share onlyONE INSTRUMENT.

2.5 Contents of the package

Part Quantity

8440 instrument 1Charge battery adapter 1

Secure Digital™ card 1RS232 Cable (optional) 1

G4™ software and upgrades can be found on the local distributor’s website.


Introduction Contents of the package Page 21 of 61

Figure 2.9: 8440 connected with microphone and accelerometers

PROHIBITION

F&V s.r.l. RS232 Cable is NOT compatible withLarson Davis HVM-100 accessory, even if the

MiniDIN connector is the same: DO NOT confusecables beacuse an hardware damage may result!


Setting and functions Page 22 of 61

Chapter 3

Setting and functions

8440 instrument is controlled by some push-buttons keyboard as described in 2.4.1.Using these push-buttons one can access all available functions and set the parameters.Functions are arranged in a tree structure. The main list or menu contains the headersof six lists which contain sub-lists or elements. In particulary:

• press N or H (up or down arrow) to scroll the list and sublist on the display andto set the numericals parameters;

• press I to select a sublist and to set the parameters;

• press ON to confirm the mode or the parameters (when a value is confirmed, theinstrument, automatically, returns to the upper list);

• press J to return to the upper list;

The main list is shown when 8440 is turned on:

→ SETUP

CHANNEL SETTING

MEASURE SETTING

DATA MANAGE

The main list elements are:

• SETUP;

• CHANNEL SETTING;

• MEASURE SETTING;

• DATA MANAGE;

• GENERAL SETTING;

• INFO;

The following paragraphs describes every list and the respective sub-lists.


Setting and functions Setup Page 23 of 61

3.1 Setup

Allows to manage the instrument setup: general setting, channels setting, measurementsprocedures and data manage. When selected, the main list and sub-list on the displaybecomes:

→ SETUP

CHANNEL SETTING

MEASURE SETTING

DATA MANAGE

→ Load Setup

Save Setup

Load Setup: allows to load a previous configuration;

Save Setup: allows to save the current configuration;

The files saved save with .avs extension, are compatible with those one createdfrom 8440 software on PC.

IMPORTANT

The directory SETUP should exist in the SecureDigital™ card, otherwise a directory named

SETUP is automatically created.

IMPORTANT

It’s possible to make the setup configurationoff-line (with PC) and to save it in the Secure

Digital™ card. Then, plugging the SecureDigital™ card into 8440, the configuration can be

loaded and used.

IMPORTANT

Setup configuration and menu settings are saved inthe Secure Digital™ card: for creating and

changing sessions see par. 3.4


Setting and functions Channel Setting Page 24 of 61

3.2 Channel Setting

It allows to set the parameters for each channel. Parameters change when a channelpasses from sound (ACOUSTIC mode) to vibration (VIBRA mode) working mode, asshown in the following pictures.In VIBRA mode the menu becomes:

SETUP

→ CHANNEL SETTING

MEASURE SETTING

DATA MANAGE

Channel 1

→ Channel 2

Channel 3

Channel 4

→ Mode: VIBRA

Range

Axis

Measure

Mode: VIBRA

→ Range: HI/LO

Axis

Measure

Mode: VIBRA

Range

→ Axis:X/Y/Z/AUX

Measure

Mode: VIBRA

Range

Axis

→ Measure:Level Meter

→ Level Meter:2

Analyzer:

→ Filt: Wk, Wd, ..

Peak:2

Max:2

Level Meter

→ Analyzer:

→ Type: OFF, 1/1, 1/3

Time Const: 1 sec, 2 sec

Range

Axis

Measure

→ Store Data: 2



In ACOUSTIC mode the menu becomes:

SETUP

→ CHANNEL SETTING

MEASURE SETTING

DATA MANAGE

→ Channel 1

Channel 2

Channel 3

Channel 4

→ Mode: ACOUSTIC

Range

Measure

Mode: ACOUSTIC

→ Range: HI/LO

Measure

Mode: ACOUSTIC

Range

Measure

Mode: ACOUSTIC

Range

→ Measure:Level Meter

→ Level Meter:2

Analyzer:

→ Max:2

Min:2

C-Peak:2

...

Level Meter

→ Analyzer:

→ Type: OFF, 1/1, 1/3Time: FAST, IMP, SLOW,..

Range

Measure

→ Store Data:2

For each channel there are the following sub-lists:

Mode: ACOUSTIC/VIBRA allows to configure each channel for sound measuring(with microphone) or vibration measuring (with accelerometer);

3.2.1 Vibrational mode

Range: LO/HI 56.2 ÷ 1000 ms−2 , allows to set measuring input range.

IMPORTANT

Range value is correlated with Digital Overflow(see par. 6)

Axis: X/Y/Z/AUX , allows to assign the axis of accelometer (triaxial) to a specificchannel: ultimately this is a label for vibrational channels (all channels are set upfor vibration measuring)



Measure: allows to define measuring characteristics (these parameters are measuredand displayed on the instrument). It contains two sub-lists referring, respectively,to Level meter or Analyzer working mode:

• Level Meter: allows to enable the VLM function (according to ISO 8041).If the function RMS is set, all the instrument input band will be measuredand frequencies will be weighted by the filter selected in the Filter sub-list:

– Filter:Wb or Wk or Wd or Wc or Wm or Wh see Appendix A

– Max: enabled(√

) or disabled(2), see Appendix A

– Min: enabled(√


– LinRMS: enabled(√

) or disabled(2), see Appendix A.

– Peak: enabled(√


– VDV: enabled(√


• Analyzer

– Type: OFF or 1/1 or 1/3, see Appendix A

– Time con: 1 s or 2 s or 5 s or 8 s or 10 second or 125 ms see AppendixA

IMPORTANT

If Analyzer working mode is enabled, batteryconsumption increases twice as much, so fullycharged battery ensures only 6 hours of work.

Store data: enabled(√

) or disabled(2), allows to store the files in Secure Digital™ card(only the parameters selected in Measure menu). For further informations see par.3.4.

3.2.2 Acoustic mode

Range: LO/HI 115 dB or 140 dB, allows to set measuring input range;

IMPORTANT

The value of Range is correlates with DigitalOverflow and UnderRange, (see par. 6)


Setting and functions Measure Setting Page 27 of 61

Mic Field: FREE/DIFF , allows to set the proper conditions for measuring withmicrophone in free field conditions/Flat Filter (FREE), or in diffuse field conditions(DIFF, see Appendix Afor different compensations)

Measure: allows to define measuring characteristics (these parameters are measuredand displayed on the instrument). It contains two sub-lists referring, respectively,to Level meter or Analyzer working mode:

• Level Meter: allows to enable the SLM function (according to IEC 61672-1).Is possible to choose the frequency weighting (A,C or Z) and the weightingtime (Fast, Slow, Impulse and Leq) as described in the sub-list:

– Max: enabled(√

) or disabled(2), see Appendix A,

– Min: enabled(√


– C-Peak: enabled(√


When set, enables the sub-lists described below:

– Z-FAST: enabled(√


– A-FAST: enabled(√


– C-FAST: enabled(√


– Z-SLOW: enabled(√


– A-SLOW: enabled(√


– C-SLOW: enabled(√


– Z-IMPULSE: enabled(√


– A-IMPULSE: enabled(√


– C-IMPULSE: enabled(√


– Z-Leq: enabled(√


– A-Leq: enabled(√


– C-Leq: enabled(√


• Analyzer

– Type: OFF or 1/1 or 1/3, see Appendix A

– Time con: FAST or IMP or SLOW or LEQ, see Appendix A

Store data: enabled(√

) or disabled(2), allows to store the files in Secure Digital™ card.(Only parameters selected in Measure menu). For further informations see par. 3.4.

3.3 Measure Setting

This menu contains all the commands useful to perform measurings.

SETUP

CHANNEL SETTING

→ MEASURE SETTING

DATA MANAGE



→ Measure Start

Start Delay

Buffer Step

Measure Lenght

→ MEASURE MENU

press I to START

Start Delay

→ Buffer Step

Measure Lenght

DAT Recorder

→ XX:XX:XXX

Set min s ms

Start Delay

Buffer Step min s ms

→ Measure Lenght

DAT Recorder

→ XX:XX:XXX

Set min s ms

Start Delay


Measure Lenght

→ DAT Recorder

→ Rec. Channel:CH1/CH2/...

Sampling Freq:48K/24K/...

Rec. during MEAS: 2.

press I to record


Measure Lenght

DAT Recorder

→ Trigger

Trigg Channel:CH1/CH2/...

→ Trigg Level

Wav recording: 2.

Trig Out Enable: 2.

Post Trigger:2s/10s/...

Max Ev. Length:30s/120s/inf

→ XX

SET dB

3.3.1 Measure Start

Starts measuring.

Example: display during measure

This paragraph illustrates in details the behaviour of 8440 during the 4th step of thetutorial: quickstartmeasuring. When PLAY is pressed, the display looks like in thefollowing image:

ELAPSED: XXX.XX ISetup: name B⇑C1LAS 30,5dB

C1LAF 32,5dB

Every line identifies the current measurement: CxLAS XXdB where,



• Cx identifies the enable channel for the current measurement (when the 1/3 octaveanalysis is enable, on the display appears the line CxSPECTRUM);

• LAS/.../.../... is the parameter relative to current measurement

• XXdB is the value of the current measurement

• ELAPSED is the time elapsed since the measuring started.

The icones on the right of the display identifies:

• I/ : PLAY or PAUSE identifies the measuring state;

• B⇑ or D⇑ or ⇓:

- D⇑: identifies the overflow DIGITAL (EN 61672-1:2003) of the digital acquisition(check/modify the measuring range in Channels Setting see3.2);

- ⇓(only for acoustic channels): identifies the underrange (EN 61672-1:2003) of thedigital acquisition);

- B⇑(only for Channels 2,3 and 4): identifies the overflow BIAS of the polarizationof the trasducers (this can be generated from the bad connections from 8440withthe trasducers or from problems of sollecitations of the accelerometer that saturate-DC Shift Effect-);

IMPORTANT

For each current measurement on the displayappears only one of D⇑/⇓/B⇑: the priority of

visualization is the same above indicate:respectively D⇑, ⇓ and B⇑

• : identifies the battery charge level, see 2.3;

• : Bluetooth™ Module is swicth-on when on the display appears the icone.

When STOP is pressed,JM + N,the display looks like in the following image:



File:MEASXXXX

Sess:SESSXXXX

ELAPSED: XXX.XX

Setup:name

using DOWN,H, and UP,N, it’s possible to scroll the resuming values of the measure;like report obtained with Load file command (see par. 3.4), it is shown ONLY globalparameters like time, LinRMS, Leq, . . . and NOT instantaneous parameters like Lzf,Laf, Las, . . .Pushing ON the instrument will returns to main menu.

3.3.2 Start Delay

Sets the delay between the start command and the measuring beginning. It is useful toleave the instrument on the field avoiding noise.

3.3.3 Buffer Step

Allows to set the delay between a measurement saving and the next one (e.g.: if one toset Buffer Step 1 s, all selected measurements are saved once per second): Buffer Stepcan be indicated in minutes, seconds and milliseconds.

IMPORTANT

Buffer Step is correlated with the time constants oflinear averaging, for example LinRMS, LEq, VDV

( see Appendix A)

3.3.4 Measure Lenght

Allows to set the measuring time lenght, selecting it in minutes, seconds, milliseconds.

3.3.5 DAT Recorder

Allows to perform a sound recording, generating audio files with standard extension .wavthat can be managed by a lot of commercial programs such as ADOBE Audition© .



ADVICE

DAT Recorder can be used with Trigger function(see par. 3.3 below) in order to record .wav files

when the measured level (dB or mm/s) exceeds theuser-defined trigger level.

• Rec. Channel: By pressing ON is possible to select the channel source(s)(Ch1/Ch2/Ch3/Ch4/ALL).

• Sampling Freq: By pressing ON is possible to select sampling frequency ofthe .wav file stored, availables frequencies are: 48KHz (standard DAT recording),6KHz, 3KHz, 1.5KHz. Note that the bandwith of the recorded signal is half thesampling frequency and the dimension of the recorded file is proportional to it. Forexample the maximum dimension is achieved with 48KHz and 4 channel (ALL)recording, full bandwith of 22KHz, with an average of 30Mbyte/min; minimalrecording is achieved with 1.5KHz and one channel, bandwith of 750Hz with anaverage of 250Kbyte/min.

• Rec.During MEAS: By pressing ON is possible to select enable the recordingduring other measures (such as LinRMS, VDV, Lafast, LaEq,. etc.). This featureis available only for sampling frequencies lower than 12KHz; once enabled it ispossible to make other measures returning on Measure Start menu, the instrumentwill record a measXXXX.wav and a measXXXX.adb in the same active session.

• Press I to RECORD: by pressing I an audio file is created and namedmeasXXXX.wav, where XXXX is the progressive numeration of the recordings;this function is available only if Rec. During MEAS function is disabled (see 3.3above). It is created only one file also in case of ALL channels recording, containingall four channels raw data. During sound recording, an advice is displayed (”NOWRECORDING”, see the following tree). When STOP (JM + N) is pressed,the recording ends and file name, session name and recording time are displayed.

Dat Recorder requires to use the Secure Digital™ cards recommended by F&V s.r.l..

→ Rec. Channel:CH1/CH2/...

Sampling Freq:48K/24K/...

Rec. during MEAS: 2.

press I to record

ELAPSED: min:s ISetup: nomesetup B⇑CX: [level meter]

The summary page, common to all measures, not just those DAT, is represented in thefigure below:



FILE: nomefile

Sess: nomedirectory

ELAPSED: min:s

Setup: nome setup

IMPORTANT

Before DAT recording operation, it’s advisable toformat the Secure Digital™ cards (command

FORMAT CARD in the DATA MANAGE menu),avoiding to delete or rename the .wav files. Then,

of course, at the end of recording it’s convenient toimmediately move the files on a PC! Anyhow, USEONLY THE Secure Digital™ CARDS SUPPLIED

BY F&V s.r.l..


Measure Lenght

DAT Recorder

→ Trigger

Trigg Channel:CH1/CH2/...

→ Trigg Level

Level Unit: m/s

Wav recording: 2.

Trig Out Enable: 2.

Post Trigger:2s/10s/...

Max Ev. Length:30s/120s/inf

3.3.6 Trigger

Allows to configure trigger function. The Trigger is used to define trigger levels associatedwith exceedance events. Instances where the measured level (dB or mm/s) exceeds theuser-defined trigger level, starts user-defined actions: to record event into .wav file and/orgenerates an output signal from the auxiliary port (MiniDIN connector) see Par. 2.4.3.

• Trigg Channel: By pressing ON is possible to select the channel source(Ch1/Ch2/Ch3/Ch4) for the trigger instances.

• Trigg Level: By pressing I is possible to set levels associated with exceedanceevents, depending on the kind of measure (acoustic or vibrational) of the channelchoosen as Trigg Channel, user can define it in dB referred to the LAF , m/s orm/s−2referred to the LinRMS measure. The last two linear units depend from theponderation filter choosen: VEL10 generates a velocity measure and works in m/s(or mm/s or um/s), while other filter works in m/s−2(or mms−2or ums−2).

• Level Unit: By pressing ON is possible to select the range of the threshold: ms−2,mms−2, ums−2for VEL10 ponderation or m/s, mm/s, um/s for others ponderations.



This feature is available only if Trigg Channel is vibrational one, since if it’s acousticthe unit is the dB, it don’t need to set the range.

• Wav recording: By pressing ON is possible to enable DAT recorder (see par.3.3 above) as user-defined action managed by trigger level. Once instances wherethe measured level (dB or mm/s) exceeds the trigger level the instruments willgenerates .wav files. The length and the number of files depend by the Post Triggerand Max Ev. Length parameters (see below).

• Trig Out Enable: By pressing ON is possible to enable a signal output from theinstrument as user-defined action managed by trigger level. Once instances wherethe measured level (dB or mm/s) exceeds the trigger level the instruments will setshigh the Trigout pin of the Aux Port see 2.8.

• Post Trigger: By pressing ON is possible to select the post-trigger lenght(2s/10s/30s/120s/inf) for the trigger instances. Once the level exceeds the triggerlevel and the triggered state is entered, user-defined actions (for example .wav filerecording with DAT function) remain enabled for a minimum duration of PostTrigger seconds after the signal returns under trigger level. Post Trigger settled toinf means, once enabled, user-defined action holds active until the end of measure,see Fig. 3.1.

• Max Ev. Length: By pressing ON is possible to select the single event maximumlength (30s/120s/inf) for the trigger instances. Once the level exceeds the triggerlevel and the triggered state is entered, user-defined actions (for example .wavfile recording with DAT function) is enabled for a maximum duration of Max Ev.Length seconds. Max Ev. Length settled to inf means, once enabled, user-definedaction holds active until the end of measure, see Fig. 3.1.

ADVICE

Minimun .wav file recording with DAT function isachieved with Post Trigger=2s and Max Ev.

Length=30s. Maximum .wav file recording withDAT function is achieved with Post Trigger=inf

and Max Ev. Length=inf.


Setting and functions Data Manage Page 34 of 61

Figure 3.1: The trigger parameters

3.4 Data Manage

It contains all the commands related to managing measurements files. The list andsub-list on the display becomes:

SETUP

CHANNEL SETTING

MEASURE SETTING

→ DATA MANAGE

→ New Session 2

Change Session

Delete Session

Load File

→ Make SESSxxxx

ON for YES

New Session

→ Change Session 2

Delete Session

Load File

?SESSxxxx

New Session

Change Session

→ Delete Session

Load File

→ Delete SESSxxxx

→ SESSxxx

ON for YES

New Session

Change Session

Delete Session

→ Load File2

→ Load xxxx



Change Session

Delete Session

Load File

→ Delete File2

→ Delete xxxx 2

→ FILExxxx

ON for YES

Delete Session

Load File

Delete File

→ FORMAT CARD 2

→ ARE YOU SURE?

ON for YES J for NO

Load File

Delete File

FORMAT CARD

→ Free Space CarD2

3.4.1 New Session

Allows to create a new directory in order to save all measurements files (preferablycreating a new directory for each measuring session):

• Make Sessionxxxx: Press ON for YES

3.4.2 Change Session

Allows to select the measurements session from the available sessions list (the *, near tosession’s name, indicates the active session):

• press ON Sessionxxxx: ? Sessionxxx

3.4.3 Delete Session

Allows to delete all measurements files contained in the directory (the * next to thesession’s name, indicates the active session):

• press I to select the Sessionxxxx, press ON to delete this Sessionxxxx

8440 create an incremental sequency of directories Sessxxxx.adb

3.4.4 Load File

Allows to display the resumptive report containing the measurement global parameters:

• press I to select the Filexxxx

allows to delete the measurement files one by one:

• press I to select the Filexxxx, press ON to delete this file



3.4.5 Format Card

Allows to delete all files:

• Are you Sure?: press ON for YES, press J for NO

IMPORTANT

The report obtained with Load file command shownONLY global parameters like time, LinRMS,

Leq, . . . and NOT instantaneous parameters likeLzf, Laf, Las, . . .

IMPORTANT

With Format Card one deletes the SETUPdirectory of the instrument too. (Delete All is

equivalent to format Secure Digital™). All othersfunctions do not damage the SETUP directory

3.4.6 Free space card

Displays the free space on the removable memory.

IMPORTANT

Avoid to use and store Secure Digital™ cards wherethey may be exposed to static electricity or

electrical interference


Setting and functions General Setting Page 37 of 61

3.5 General Setting

CHANNEL SETTING

MEASURE SETTING

DATA MANAGE

→ GENERAL SETTING

→ Time Date h m s

Battery mgnt

Calibration

Link

→ day: dd/mm/yy

hour: hh:mm:ss

Time Date

→ Battery mgnt

Calibration

Link

Battery Level: xx%

TIme Date

Battery mgnt

→ Calibration:

Link

→ Channel 1

Channel 2

Channel 3

Channel 4

→ Sens: XX.XX mV/Pa

Type: MEAS/SENS

Value: XX.XXX

Start Calib.

XX.XX

→ SET dB

Channel 1

→ Channel 2

Channel 3

Channel 4


Type: MEAS/SENS

Value: XX.XXX

Start Calib.

XX.XX

→ Set dB

Channel 1

Channel 2

→ Channel 3

Channel 4

→ ....

Channel 1

Channel 2

Channel 3

→ Channel 4

→ ....

Time Date

Battery mgnt

Calibration

→ Link: 2

Battery mgnt

Calibration

Link: 2

→ Firmware settings: 2

WARNING! REBOOT for any

change!



→ SLM 2.

→ 4th Channel 2.

→ Octave Band an. 2.

→ Datalog 2.

→ HVM 2.

→ DAT 2.

→ Full 8041 2.

→ FFT 2.

→ UART Cable 2.

→ Trigger 2.

→ Firmware Update

3.5.1 Time/Data

Allows to display the current time and date (when the Bluetooth™ connection is ON,time and date of 8440 are automatically set to those one of the remote PCA. Dateand hour can be changed selecting the day or hour fields in the menu and increasing ordecreasing the value with Uparrow and Downarrow keys. Changes must be confirmedby pressing ON key.

3.5.2 Battery mgnt

Allows to show the battery charge (see 2.3).

3.5.3 Calibration

Contains all the command and the parameters related to calibration procedures for eachchannel (see chapter 4).

Sens.: in case of calibration by measure, it shows the equivalent calculated sensitivityof the calibrator. In case of calibrationby sensitivity, this value must bemanually inserted and is needed as reference.

Type: allows to choose calibration by measure or by sensitivity.

Value: shows the current value for performing calibration by measure. It must byequal to the value emitted by the external acoustic calibrator.

Start calib: when selected, calibration is executed.

SET dB: allows to set the new reference value for performing calibration by measure.



IMPORTANT

During calibration by sensitivity, the displayedValue (typically, 94.00 dB) is meaningless and

must be ignored.

DANGER

During calibration by measure, the equivalentcalculated sensitivity shown on the 8440 display

should have a value compatible with thetransducer’s sensitivity, otherwise probably amistake has been made or an error occurred.

3.5.4 Link:RADIO/radioOFF/CAB.115K

Allows to activate Wireless Bluetooth™ communication (when Bluetooth™ is OFF thereis a battery saving ≈ 10%). When RS232 cable is connected (see par. 5.9), CAB.115Kreplaces RadioOFF and it enables the wired communication.

PROHIBITION

F&V s.r.l. RS232 Cable is NOT compatible withLarson Davis HVM-100 accessory, even if the

MiniDIN connector is the same: DO NOT confusecables beacuse an hardware damage may result!

3.5.5 Firmware settings

Opens the configuration menu of firmware modules. Select each single module and pressON key to enable/disable it. If a cross X appear, the module is not selectable becauseit is not enabled; refer to your local distributor to purchase it.



IMPORTANT

To enable firmware modules changes you MUSTreturn to main menu then turn off the instrument,

allowing the internal flash mamory to be update

Update firmwareThis menu allows to enable or disable single firmware modules. For this purpose, selecta module and then enable/disable it by repeatedly pressing the ON key.

DANGER

Changes take effect only after turning off and thenturning on again the instrument.

The command Firmware update allows to start the updating procedure. Into details:copy in the Secure Digital™ card the update file (∗.LDR), then select the commandFirmware update and confirm the operation by pressing ⇒. Wait until the write OKREBOOT is displayed.

Battery mgnt

Calibration

Link: 2



change!

→ SLM V/X

4th Channel V/X

Octave Band An. V/X

Datalog V/X

SLM V/X

→ 4th Channel V/X

Octave Band An. V/X

Datalog V/X

SLM V/X

4th Channel V/X

→ Octave Band An. V/X

Datalog V/X

SLM V/X

4th Channel V/X

Octave Band An. V/X

→ Datalog V/X

4th Channel V/X

Octave Band An. V/X

Datalog V/X

→ HVM V/X

Octave Band An. V/X

Datalog V/X

HVM V/X

→ DAT V/X



Datalog V/X

HVM V/X

DAT V/X

→ FULL 8041 V/X

HVM V/X

DAT V/X

FULL 8041 V/X

→ FFT V/X

DAT V/X

FULL 8041 V/X

FFT V/X

→ Firmware Update

IMPORTANT

Execute firmware updates only with an externalpower supply plugged. In any case, do not

interrupt the updating procedure: any interruptioncould cause severe damages to the instrument.Execute the updates only if strictly needed and

suggested by the technical support.

IMPORTANT

Firmware update takes effect only after turning offand then turning on again the instrument

.

3.5.6 Info

The display shows the instrument’s marking: Bluetooth™ Id (BT Id is unique for eachinstrument), FW version, Standards compliance: the Info allows to identify the specificinstrument.

MEASURE SETTING

DATA MANAGE

GENERAL SETTING

→ INFO

8440 XXX

ISO 8041:2055

...

FW Vers a.b.cc


Stand-alone instrument calibration Page 42 of 61

Chapter 4

Stand-alone instrument calibration

Press J to return to the main menu and select General Setting:

CHANNEL SETTING

MEASURE SETTING

DATA MANAGE

→ GENERAL SETTING

TIme Date

Battery mgnt

→ Calibration:

Link

→ Channel 1

Channel 2

Channel 3

Channel 4


Type: SENS

Value: XX.XXX

Start Calib.

XX.XX

→ SET sens.mV/Pa

Channel 1

→ Channel 2

Channel 3

Channel 4

Sens: XX.XX mV/Pa

Type: MEAS

→ Value: XX.XXX

Start Calib.

XX.XX

→ Set dB

Channel 1

Channel 2

→ Channel 3

Channel 4

→ ....

Channel 1

Channel 2

Channel 3

→ Channel 4

→ ....

Time Date

Battery mgnt

Calibration

→ Link: 2

Battery mgnt

Calibration

Link: 2





change!

→ SLM 2.

→ 4th Channel 2.

→ Octave Band an. 2.

→ Datalog 2.

→ HVM 2.

→ DAT 2.

→ Full 8041 2.

→ FFT 2.

→ UART Cable 2.

→ Trigger 2.

→ Firmware Update

CAUTION

If in the menu field Calibration CHx ⇒ Sens xxxmV/Pa is shown: “—.–” and not a numerical

value, please contact the technical support and tonot perform any measuring

.Calibration: set calibration parameters for each channel:

• Calibration Ch1:

1. properly set the calibrator reference value in the Calibration menu

2. connect the acoustic calibrator to the microphone of the 8440 ;

3. switch on the calibrator and wait ≈ 30 s before starting the calibration’sprocedure;

4. press START CALIB to start calibration (the display shows Calibrating Ch1);

5. wait some seconds until the display CALIBR. OK Ch1;

6. press J to return to the previous menu

• Calibration Ch2:

1. properly set the calibrator reference value in the Calibration menu

2. connect the vibrational calibrator to the 8440 ’s accelerometer;

3. switch on the calibrator and wait ≈ 30 s before starting the calibration’sprocedure;

4. press START CALIB to start the calibration’s measurement (the displayshows Calibrating Ch2);

5. wait some seconds until the display shows CALIBR. OK Ch2;




• Calibration Ch3: Repeat channel2 calibration procedure (VIBRA MODE)

• Calibration Ch4: Repeat channel2 calibration procedure (VIBRA MODE)

IMPORTANT

If the instrument is turned off and after a few timeit is switched on again, it’s not necessary to repeat

its calibration.


Firmware Modules Page 45 of 61

Chapter 5

Firmware Modules

Firmware modules that appear into the tree with a X aren’t available on your instrumentand must be purchased; you will need to contact your Local Distributor and arrange tohave a modules upgrade file sent you via E-mail. Save this file into the root of SecureDigital™ , delete any ∗.LDR file present in root and do firmware update, see par. 3.5.5.

Battery mgnt

Calibration

Link: 2



change!

SLM 2.

4th Channel 2.

Octave Band an. 2.

Datalog 2.

HVM 2.

DAT 2.

Full 8041 2.

FFT 2.

UART Cable 2.

Trigger 2.

→ Firmware Update

DANGER

Changes take effect only after turning off and thenturning on again the instrument.

8440 ’s basic configuration enables:

• 3 channel that is the LEMO connector, see 2.4.2.

• Logging of a single parameter per channel.

• Standard 4 Gbyte Secure Digital™

• External power supply / charger and on-board Li-Ion battery


Firmware Modules SLM Page 46 of 61

5.1 SLM

ACOUSTIC mode (sound level meter, see Appendix A.1.2):

• Averaging: Exponential RMS (Lxy), Max, Min, Leq (Linear RMS), CPeak;

Calculates the sound pressure level, as stated in Appendix; the time history logsthe instantaneous value of Lxy at the end of every buffer step. Leq calulates theequivalent level of sound pressure, as stated Appendix. For every buffer step, onevalue of Lxeqt is logged; a global value of Lxeq is also calculated for the wholemeasure, when the measure stops (the totalLxeq for that measure). The Max(Min) value logs the maximum (minimum) value that Lxy assumes during all the”present” buffer step. For every buffer step, one value of Max (Min) is logged.The Max (Min) measure can be selected for the exponential RMS measures Lxy,i.e. for AFast, CFast, ZFast, ASlow, CSlow, ZSlow, AImpulse, CImpulse,ZImpulse, but not for Leq; as stated in Appendix. The Cpeak for every bufferstep calculates the instantaneous maximum value of the C-weighted sound level.A single global instantaneous value of C-weighted sound level is also calculated forthe whole measure, when the measure stops.

• Time constants: Fast, Slow, Impulse;

The time constant Tb, as stated in Appendix can be 125ms (Fast) or 1s (Slow).The Impulse time constant is implemented by a 35ms exponential RMS integratorfollowed by a detector with time constant of 1.5s

• Frequency weighting: A, C, Z (linear);

The signal Cw(t), as stated in Appendix is the instantaneous sound pressure,frequency weighted by the A or the C filter. The Z filter represents a linear filter.

• Compliance to standards: IEC61672

5.2 4th Channel

Enables fourth channel, that is the BNC connector, see 2.4.2. Enables forthis channel all funcionality available by other firmware modules (SLM , HVM ,DATRecording, etc).


Firmware Modules Octave Band an. Page 47 of 61

5.3 Octave Band an.

Enables EN61260-Class0 octave bands and third octave bands spectrum analysison (up to) 4 channels, both for acoustic and vibration measures.

Acoustic mode- 33 third octave bands or 11 octave bands spectrum decomposition (see AppendixA.1.3 for EN61260 frequencies)- Time constants: Fast, Slow, Impulse or Leq (Linear RMS, no time constant)- No spectrum frequency weighting available. Spectrum analysis is always withoutfrequency weighting;Note: the input signal is first filtered and subdivided in octave / third octave bands.Then for every band is calculated the sound level by exponential RMS calculation(for Fast, Slow, Impulse selection) or by the Linear RMS calculation (for Leqselection).

Vibrational mode- 45 third octave bands or 15 octave bands spectrum decomposition (see AppendixA.1.3 for EN61260 frequencies)- Time constants: 125ms, 1s, 2s, 5s, 8s, 10s;- No spectrum frequency weighting available. Spectrum analysis is always withoutfrequency weighting;Note: the input signal is first filtered and subdivided in octave / third octavebands. Then for every band is calculated the acceleration level by exponentialRMS calculation (with the selected time constant).

5.4 Datalog

Since 8440 ’s basic configuration enables logging into Secure Digital™ of oneparameter per channel, Datalog module enables logging of all channel parametersas time history on the Secure Digital™ card.

5.5 HVM

VIBRATIONAL mode (vibration level meter, see Appendix A.1.1):

••• Averaging: Linear RMS, Peak, Max;

LinearRMS, like the Leq calculation in the sound level meter, stores one value ofacceleration level for each buffer step, and one global value of acceleration level forthe whole measure, as stated Appendix. Peak, like the C-peak in the sound levelmeter, also the vibration level meter can measure the instantaneous peak value


Firmware Modules BLD Page 48 of 61

of acceleration level, one for every buffer step, and one for the whole measure.Max, like the Max value in the sound level meter, the vibration Max measuresthe maximum value of the signal during the exponential RMS calculation with thespecified time constant.

• Time constants: 125ms, 1s, 2s, 5s, 8s, 10s;

The time constant is more explicitly than sound level meter, the Tb value, asstated in Appendix.

• Frequency weighting filters: Wc, Wd, Wh, Wk, Wj

The signal Cw(t), as stated in Appendix A is the instantaneous sound pressure,frequency weighted by the A or the C filter. The Z filter represents a linear filter.

• RMS parameters: MTVV, VDV, VTV (AwSUM), for vibration level meter

MTV V Maximum Transient Vibration Value Lxy calculation in the sound levelmeter, stores one value of acceleration level for each buffer step as stated Appendix.V DV Vibration Dose Value like the Lxy calculation in the sound level meter, storesone value of acceleration level for each buffer step, V DV t, and one global value ofacceleration level for the whole measure, V DV , as stated Appendix.AwSUM (that is V TV Vibration Total Value with Kx=Ky=Kz=1) the overallvalue as stated Appendix, it is calculated at the end of each measure.

• Compliance to standards: ISO8041:2005, ISO2631-1 and ISO5394-1

5.6 BLD

Building Vibration: enables all Frequency Weighting Filters not availables intoHVM module, such as Wb and Wm .

Compliance to standards: ISO8041:2005, ISO2631-1 and ISO2631-2.

5.7 DAT

Enables recording of channel(s) into a single standard .WAV multichannel file; theresolution is 24bit (with 24bit, 3 byte packing). Frequency sampling availables:48KHz, 6KHz, 3KHz, 1.5KHz.


Firmware Modules Predict Page 49 of 61

5.8 Predict

Enables all Frequency Weighting Filters not availables into HVM module, suchas V EL10 and V EL1 to measure velocity (mm/s), DIS to measure displacement(um); enables specific algorithms for predictive maintenance such as evelope.

Compliance to standards: ISO8041:2005

5.9 UART Cable

8440 is provided with RS232 cable adapter and firmware, enables wiredcommunication with PC and other devices using standard two wire TX/RXhardware configurazion: 115200Baud, Parity even, 8 bit data, 1 stop bit and nohandshake (No Xon/Xoff).Once the cable is plugged into MiniDIN connector (see 2.4.2), it is possible to turnon communication with Link function, see par. 3.5

5.10 Bluetooth

8440 is provided with embedded Bluetooth™ radio module Class 1 (range: upto 100mt); it ensures V2.0 SPP (Serial Port Profile) communication with secure(PIN: 0000) connection. Please, refer to G4™ user manual and tutolials for firstconfiguration and connection.

5.11 Trigger

The Trigger enables levels associated with exceedance events. Instances where themeasured level (dB or mm/s) exceeds the user-defined trigger level, starts user-definedactions:

••• To record event into .WAV file (see Par.3.3).

• To generate an output signal from the auxiliary port (MiniDIN connector seePar.2.4.2).

5.12 FFT

To be defined.


Tutorials Page 50 of 61

Chapter 6

Tutorials

The following lists show the essential steps which have to be performed in order to quicklyperform:

• a standard measuring procedure;

• an Hand-Harm(ISO5397)/Acoustic Measuring;

• the calibration by measure procedure with the instrument in stand-alone operatingmode;



Tutorial: Quick Start Measuring

1. from the main menu press I to select SETUP;

2. press I to select LOAD SETUP (the display shows the list of fileson the Secure Digital™);

3. press ON to select a specific file;

4. from Measure Setting menu, select Measure Start, follow theinformations on the display and then press I PLAY, (the display showthe parameters relating to Channel and Measuring Procedure (see par.3.3.1);

5. with PAUSE,JM + NI, the measuring file is frozen (not closed);

6. with STOP,JM + N, the measuring file is closed: on the displayappears the parameters of measurements procedure;

7. with ON to go out of the menu;



Tutorial: Hand-Harm Measuring

1. after switching on the instrument, as explained at the section 2.4,on the display main functions appear:

→ SETUP

CHANNEL SETTING

MEASURE SETTING

DATA MANAGE

2. before starting to measuring, it is necessary the setup of theinstrument, like described below:

3. press I to select Measure Setting: set Buffer Step = 1 s (press Nand H to set the numericals parameters);

4. press J to return to the main menu and select Channel Setting;

5. select CHANNEL 1 (CH1): set the followings parameters,- MODE: ACOUSTIC;- RANGE: LO;- MEASURE:- Level Meter: - MAX

√, - CPeak

√, - ASlow

√, - AFast

√, -

ALeq√

,- Analyzer: Type OFF- STORE DATA:

√

6. press J to return to the Channel Setting menu;

7. select CHANNEL 2 (CH2): set the followings parameters,- MODE: VIBRA;- RANGE: LO;- AXIS X/Y/Z: X=CH2, Y=CH3, Z=CH4;- MEASURE:- Level Meter:- FILT: Wh, - Peak

√, - RMS

√, - VDV

√, - MTVV



√

- Analyzer: Type OFF- STORE DATA:

√

8. for Channel 3 and Channel 4 repeat the same setup like Channel 2.

9. start measuring as described at 6 at steps 4,5,6,7.



Tutorial: Calibration by measure withstand alone instrument

1. go to GENERAL SETTING menu item and then go toCALIBRATION

2. go to the channel which must be calibrated (e.g.: CHANNEL 2 )

3. select Type MEAS

4. insert the external acoustic calibrator reference value (e.g.:94.00 dB)

5. connect the acoustic calibrator to the microphone of the 8440;

6. switch on the calibrator and wait ≈ 30 s before starting thecalibration’s procedure;

7. press START CALIB. Wait some seconds until the display shownCALIBR. OK Ch1;


9. verify that the equivalent calculated sensitivity is compatible withthe transducer’s sensitivity.


Getting help Page 55 of 61

Chapter 7

Getting help

Please refer to your local dealer or distibutor for any technical request.A


Appendix A Page 56 of 61

Appendix A

Appendix A

A.1 Definitions

T: current time period of the measurements.

Tb : time period after which the results are saved in the buffer (see par.3.3)

τ : the r.m.s. detector time constant set in the DETECTOR position of the CHANNELX sub-list (in the case of VIBRA Mode equal to 125 ms or 1 s or 2 s or 5 s or 8 sor 10 s; in the case of ACOUSTIC Mode equal to IMPULSE, FAST or SLOW).

aW (t) : the value of the measured acoustic or vibration with the frequency weightingfilter (HP1, Wb, Wk, Wh, Wd, Wc, Wm in the case of vibration and HumanVibration Option and A, C or LIN and HP wide band in the case of sound) on theinput of the r.m.s. detector. (see ISO 8041, EN 61672)

cW (t0) : the temporary value of the measured sound or vibration with the W weightingfilter (HP1, Wb, Wk, Wh, Wd, Wc, Wm or Wj in the case of vibration and HumanVibration Option and A, C or LIN in the case of acoustic) on the output of ther.m.s. detector calculated from the equation:

CW (t0) =

√[1

τ

∫ t0

−∞a2

W (t)exp

(t− t0τ

)dt

](A.1)

For definitions of parameters see ISO 8041

A.1.1 Definitions of the results available in VIBRA MODE

PEAK Result

PEAK = maxT|aW (t)| (A.2)

and a0 is the reference acceleration = 10−6 ms−2


Appendix A Definitions Page 57 of 61

MAX Result

MAX = maxTb

(cW (t)) (A.3)

The MAX main result is calculated according to the formula:

MAX = maxT

(cW (t)) (A.4)

for τ 6= 1sec

for τ = 1sec ⇒ MAX ≡ PEAK

MTVV Result

The Maximum Transient Vibration Value - MTVV, saved as the main result, is defined(according to the ISO 8041 standard) as:

MTVV = maxT

(cW (t))[ms−2] (A.5)

for τ =1 s

LinRMS Result

The LinRMS result, is calculated according to the formula:

LinRMS =

[1

T

∫ T

0

a2W (t)dt

]1/2

[ms−2] (A.6)

for the LinRMS result saved in the files of the buffer (time history) T = Tb.

VDV Result

The fourth power vibration dose value (VDV) expressed in metres per second taken tothe power of 1.75 m/s1.75 is calculated from the formula:

VDV =

[1

T

∫ T

0

a4W (t)dt

]1/4

[ms−2] (A.7)

Note: the parameters in dB are calculated according to the formula:

dB = 20 log

[a

a0

](A.8)

where: a is the parameter relating to measuring procedure and a0 is the referenceacceleration = 10−6 ms−2



Vibration Total Value

This result is calculated in the case when the HVM module is available, see par.5.5. Thevector result VTV is calculated from the formula:

VTV =

√√√√ 4∑i=2

K2i LinRMS2

i (A.9)

where Ki is a coefficient for channel i (see ISO 2631, ISO 5349). For channels not selectedfor vector calculation Ki equals to zero. LinRMSi is the RMS value from channel i.

A.1.2 Definitions of the results available in ACOUSTIC MODE

SPL Result

The SPL result (Sound Pressure Level) gives an equivalent of the Sound Level Meteraccording to the IEC 651 Standard (meeting the requirements for the Type ”1”instrument). The value of the SPL result is calculated from the formula:

SPL = 20 log(maxT1

|cW (t)/p0)| (A.10)

where T1 is the last second of the measurement.

C PEAK Result

is calculated according to the formula:

C PEAK = 20 log(maxT|aW (t)/p0)| (A.11)

where:

• p0 = 20µPa,

• aW (t) is weighting C

For the C PEAK result saved in the files of the buffer (time history) T = Tb.

MAX Result

The MAX result means the maximal value on the detector output for the integrationtime period. The MAX result for the time period of 1 second is equal to the value of theSPL function. The MAX result is calculated according to the formula:

MAX = 20 log(maxT|cW (t)/p0)| (A.12)

for the MAX result saved in the files of the buffer (time history) T = Tb



MIN Result

The MIN result is calculated according to the formula:

MIN = 20 log(minT|cW (t)/p0)| (A.13)

for the MINresult saved in the files of the buffer (time history) T = Tb

LEQ Result

The LEQ result means the RMS value of sound pressure in the given time period. Theinstrument operates as the standard Integrating Sound Level Meter and conforms to theIEC 804 Standard (meeting the requirements for the Type 1 instrument). The valueof the LEQ result (that is equivalent to LAE, LCE, LZE according to EN 61672-1) iscalculated from the formula:

LEQ = 20 log

[1

T

∫ T

0

(aW (t)/p0)2 dt

]1/2

[dB] (A.14)

RMS Result

The RMS result, saved in the buffers file, is calculated according to the formula:

RMS = 20 log

[1

Tb

∫ Tb

0

(cW (t)/p0)2 dt

]1/2

[dB] (A.15)

The RMS result is equivalent to LAF , LAS, LAI , LCF , LCS, LCI , LZF , LZS, LZI ,according to EN 61672-1

SEL Result

The SEL result (Sound Exposure Level) is essentially the subset of the LEQ result. Itsvalue is equal to the LEQ result referred to the integration time equal to one second(so, for the INT. TIME =1 s, SEL is always equal to LEQ). The value of the SEL iscalculated from the formula:

SEL = 20 log

[∫ T

0

(rW (t)/p0)2 dt

]1/2

(A.16)

with T = 1 s



A.1.3 Octave analisys band frequencies

Number Nominal Frequency [Hz] Analisys kind1 1 Vibration2 2 Vibration3 4 Vibration4 8 Vibration5 16 Noise/Vibration6 31.5 Noise/Vibration7 63 Noise/Vibration8 125 Noise/Vibration

Table A.1: Nominal frequencies for octave band analisys

Number Nominal Frequency [Hz] Analisys kind1 0.8 Vibration2 1 Vibration3 1.25 Vibration4 1.6 Vibration5 2 Vibration6 2.5 Vibration7 3.15 Vibration8 4 Vibration9 5 Vibration10 6.3 Vibration11 8 Vibration12 10 Vibration

Table A.2: Nominal frequencies for thrird octave band analisys



Number Nominal Frequency [Hz] Analisys kind13 12.5 Noise/Vibration14 16 Noise/Vibration15 20 Noise/Vibration16 25 Noise/Vibration17 31.5 Noise/Vibration18 40 Noise/Vibration19 50 Noise/Vibration20 63 Noise/Vibration21 80 Noise/Vibration22 100 Noise/Vibration23 125 Noise/Vibration24 160 Noise/Vibration25 200 Noise/Vibration26 250 Noise/Vibration27 315 Noise/Vibration28 400 Noise/Vibration29 500 Noise/Vibration30 630 Noise/Vibration31 800 Noise/Vibration32 1000 Noise/Vibration33 1250 Noise/Vibration34 1600 Noise/Vibration35 2000 Noise/Vibration36 2500 Noise/Vibration37 3150 Noise/Vibration38 4000 Noise/Vibration39 5000 Noise/Vibration40 6300 Noise/Vibration41 8000 Noise/Vibration42 10000 Noise/Vibration43 12500 Noise/Vibration44 16000 Noise/Vibration45 20000 Noise/Vibration

Table A.3: Nominal frequencies for thrird octave band analisys


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