Rotronic Instrument Corp

INTRINSICALLY SAFE HUMIDITY AND TEMPERATURE

TRANSMITTERS

Bruce McDuffee

WebinarPresenters

Bob Hayes

Agenda

•What is Intrinsically Safe?•Why is it important?•Where is it used, for what applications?•What does a solution look like?

What is Intrinsically Safe?

A design technique to limit energy (electrical and/or thermal) below a level required to ignite a specific hazardous atmospheric mixture.

Why is it important?•Minimize loss of life and injuries•Minimize property damage

oPharmaceuticals /

Biotech

oGrain/Sugar mills

oPower stations

oMining

oPetrochemicals

oOil & Gas Platforms

APPLICATIONS forNEW ATEX SYSTEM – HygroFlex5-EX

What does this all mean?Let’s break it down,

first by Class

• Class 1- flammable gases or vapors

• Class 2- combustible dust present

• Class 3- ignitable fibers present

What does this all mean?Let’s break it down,

Next by division / quantifying

• Division 1- the hazardous material present has a high probability of producing an explosion

• Division 2- the hazardous material present has a low probability of producing an explosion

• Divisions in the EU are defines as Zones.

What does this all mean?Let’s break it down,

Next by group

• What materials are present to cause explosion.

ATEX 95Europe

IECExInternational

US:NEC 500/505Canada: CEC

NEW ATEX SYSTEM – HygroFlex5-EXAccredited/Certifying Agencies

Third party testing

Comments&Questions

Ifwedon’tgettoyourquestion today,we’llrespondviaemailafterthewebinar.

Wall versionDisplay optional

Duct versionDisplay optional

What does the solution look like?Transmitters options

SPECIFICATION & PROBESNEW ATEX SYSTEM – HygroFlex5-EX

• Robust aluminum enclosure. Class IP66.• High accuracy.• Optional display.• Wall or duct mounting.• 2-wire (10-28VDC) powered. • Two 4-20ma outputs.• Configurable with the HW4 software.• Interchangeable probes.

DEVICES & ZONENEW ATEX SYSTEM – HygroFlex5-EX

Applies to gas (Zone 0/1/2) and dust (20/21/22)

ATEX approval• Probe: Application temperature of -40 to 60oc

Zone 0, gas, intrinsically safe, temp 100oCZone 20, dust, intrinsically safe, temp 80oC, IP66

Application temperature of -40 to 85ocZone 0, gas, intrinsically safe, temp 130oCZone 20, dust, intrinsically safe, temp 110oC, IP66

Transmitter:Application temperature -40 to 60oC / -10 to 60oc (w/LCD)Zone 1, gas, intrinsically safe, temp 100oCZone 21, dust, intrinsically safe, temp 80oC, IP66

Maintenance of the system.

• Service cable with HW4 software.• HF5-EX Transmitter• Humidity sensor.• RTD temperature sensor.• Simulator mode.

Electronics operating range: -40 ... 60°CTransmitter Operating range:

-10…60 °C (with display )-40…60 °C ( without display )

Probe Measurement range:0 to 100% RH / -40 ... 60°C

Output 1: 4…20 mA (2 wires)Output 2: 4…20 mA (2 wires)Display: LCD displayEnclosure: IP66

SPECIFICATION & PROBESNEW ATEX SYSTEM – HygroFlex5-EX

• Display of measured values -optional• Robust aluminum housing• Field configurable• Interchangeable stainless steel

probes.• Easy calibration of the sensor.• Galvanically isolated

BENEFITSNEW ATEX SYSTEM – HygroFlex5-EX

Comments&Questions

Ifwedon’tgettoyourquestion today,we’llrespondviaemailafterthewebinar.

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• Tuesday,May17,1:00PMEDT

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More Resources

Helpingyoumakeabetterhumiditymeasurement– andmore.

•Transmitters,portablemetersandloggersfor:• Humidity• CarbonDioxide• LowDewPoint• WaterActivity• DifferentialPressure• MonitoringsystemsforcGMP• ISO17025calibrations(humidityandtemperature)

Postwebinarsurvey

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