Introduction to Rotronic HygroClip2 Probes with AirChip ... · 1. HygroClip 2 in general The HC2...

HygroClip 2

Table of contents:

• 1. HygroClip 2 in general

• 2. The different probes

• 3. Features in details

• 4. Customer benefits

• 5. Replacement overview

1. HygroClip 2 in general

The HC2-series are digital humidity-temperature probes

based on the AirChip 3000 technology.

These probes feature a UART serial interface and two 0…1 V linear analog output signals.


The HC2 probes are designed for use with the HygroClip 2 generation of ROTRONIC

humidity-temperature instruments:

hand-held and bench top indicators, data loggers, transmitters, hygrostats, etc…


The HC2 probes maintain all of the benefits of the original HygroClip technology such as

the possibility of hot-swapping probes.

Also significant improvements in the area of measurement accuracy and functionality

are integrated.


The HC2 probes can also be used as a stand-alone device featuring:

Analog output signals and

Digital interface (UART)


The HC2 probes offer the following user functions:

• Calculation of the dew or frost point• Humidity temperature calibration and adjustment• Simulator mode

• Automatic humidity sensor test and drift compensation

• Sensor failure mode

• Data recording


Mechanical only (keyed connector)Polarity protection

1 mA during maximum 2µsMaximum current spike during operation

Typical: 8 mA during 2ms and 5 mA during 2s

Minimum start-up current required

< 50mA during 2µsMaximum start-up current unlimited

< 4.5 mA at VDD = 3.3 VDC7.5 mA at VDD = 5 VDCNominal current consumption

3.3 VDCRecommended supply voltagePower supply and connections


Typical 10 sec, 63% of a 35 to 80 %RH step change (1m/sec air flow at sensor)

Sensor time constant

< 1 %RH / yearLong term stability0.3 %RHRepeatability

±0.8 %RH(w. standard adjustment profile) Measurement accuracy at 23 °C

0…100 %RHMeasuring range ROTRONIC Hygromer ® IN1Sensor

Humidity measurement


Typical 4 sec, 63% of a step change (1m/sec air flow at sensor)

Sensor time constant

< 0.1°C / yearLong term stability0.05°CRepeatability±0.1 °CMeasurement accuracy at 23 °C

-100…200 °C (see also environmental limits)Measuring range

Pt100 RTD, IEC 751 1/3 class BSensorTemperature measurement


Dew or frost point (user configurable)Psychrometric calculations

Calculated parameters

1.0s (typical) – when not calculating any parameterData refresh rate

1.5s (typical)Start-up time

Start-up time and data refresh rate


5 m (16.4 ft) w/o signal boosterMaximum cable length

Logical 0: < = 0.3V * VDDLogical 1: > = 0.8V * VDDLogical levels

NoBaud rate configuration:

Baud rate : 19200 Parity : none Data bits : 8 Stop bits : 1

Default configuration

Dialog, duplexOrganization

UART(Universal Asynchronous Receiver Transmitter)

Interface type

Digital interface

2. The different probes

HC2-S Standard HygroClip2 (black)

HC2-S3 Standard HygroClip2 (white)

Climate measurement

Main utilization: indicators, data loggers and transmitters, with or without an extension cable

Measurement in tight spaces

Main utilization: indicators, data loggers and transmitters


HC2-HK25 High Temp. HygroClip2 hand probeTemperature limits at sensor -100…150 °C

HC2-HK40 High Temp. HygroClip2 hand probeTemperature limits at sensor -100…200 °C

Spot check measurements in air ducts, chambers, ovens

Main utilization: indicators and data loggers


HC2-P05 Mini insertion HygroClip2 hand probeTemperature limits -40…85 °C

Measurement of dust-free granular products in bulk



HC2-HP28 Insertion HygroClip2 hand probeBarrel: diameter: 10 mm, length: 280 mm

HC2-HP50 Insertion HygroClip2 hand probeBarrel: diameter: 10 mm, length: 500 mm

Measurement of seeds, granulates and powders in bulk



HC2-HS28 Sword HygroClip2 probeBlade: 4 mm x 22 mm, length: 280 mm

HC2-HS42 Sword HygroClip2 probeBlade: 4 mm x 22 mm, length: 420 mm

Measurement of paper – cardboard stacks and rolls



HC2-IC102 Industrial HygroClip2 PPS probeTemperature limits at sensor -100…200 °CBarrel: diameter: 15 mm, length: 100 mmProbe cable length.: 2 m

HC2-IC105 Probe cable length.: 5 m


Process measurement (fixed installation)

Main utilization: transmitters and data loggers


HC2-IC302-A Industrial HygroClip2 PPS probe-100…200 °Cdiameter: 25/15 mm, length: 250 mmProbe cable length.: 2 m

HC2-IC305-A Probe cable length.: 5 m

HC2-IC310-A Probe cable length.: 10 m




HC2-IC302-A Industrial HygroClip2 PPS probe-100…200 °Cdiameter: 25/15 mm, length: 250 mmProbe cable length.: 2 m

HC2-ICxXX-A



HygroClip 2 TechnologyIndustrial PPS cable versionsProbe length (1,3,4,5,7)Cable length (2,5,10m)A= 25/15 diameter /robust


HC2-IM102 Industrial HygroClip2 metal probe-100…200 °Cdiameter: 15 mm, length: 100 mmProbe cable length.: 2 m

HC2-IM105 Probe cable length.: 5 m

HC2-IM110 Probe cable length.: 10 m




HC2-IM302 Industrial HygroClip2 metal probe-100…200 °C

diameter: 15 mm, length: 250 mmProbe cable length.: 2 m

HC2-IMxXX



HygroClip 2 TechnologyIndustrial metal cable vers.Probe length (1,3,4,5)Cable length (2,5,10m)


HC2-IE102 Industrial HygroClip2metal / screw in probe-100…200 °C / max. 100bar (1450 PSI)G ½” threadProbe cable length.: 2 m

HC2-IE105 Probe cable length.: 5 m


Measurement in compressed air conduits and vessels



HC2-IE302 Industrial HygroClip2metal / screw in probe-100…200 °C / max. 100bar (1450 PSI)NPT½” threadProbe cable length.: 2 m



Measurement in compressed air conduits and vessels


3. Features in detail

Mechanical improvements:

Very robust connectorOne connector for all probes!Foolproof connectionTemperature barrier from “mass” to sensor Sensor connector “Bulkhead” improvements New filter technologyTight ultrasonic welded housing

3. Features in detail

AirChip 3000:

Highest accuracy of a “RH-probe” on the marketSole “RH-probe” with full ERES conformanceDew point / Frost point probeSimulator modeAutomatic humidity sensor test and drift compensationSensor failure modeAlarmingData recording

Checks the atmosphere…humidity, temperature, dew-point

Not narrow minded…free scaling, configurable

Foresight…Auto diagnostic function

Remains young…Dynamic aging compensation

Typical characteristic of an aged, exposed to contaminants sensor and therefore drifted

Active compensation

is independent…Alarming before break down

dead straight…AirChip 3000 linearization and compensation

no secrets…open, accessible data of mathematic results

the auditor…may simulate digital and analog outputs

is a historian…Data logging, recording

4. Customer benefits

Highest accuracy of a “RH-probe” on the marketSole “RH-probe” with full ERES conformanceDew point / Frost point probeSimulator modeAutomatic humidity sensor test and drift compensationSensor failure modeAlarming Data recording

4. Customer benefits

Saving money on maintenance

High availability all over the worldmodular designedbasic types on stockeasy modification from ROTRONIC distributors

Easy integration in custom specific applications

Free firmware update on lifetime

5. Replacement overview

HygroClip HS42HC2-HS42HygroClip HS28HC2-HS28HygroClip HP50HC2-HP50HygroClip HP28HC2-HP28HygroClip SP05HC2-P05HygroClip HK40HC2-HK40HygroClip HK25HC2-HK25HygroClip SC05HC2-C05HygroClip SC04HC2-C04HygroClip S3HC2-S3 (white housing)HygroClip SHC2-S

ReplacesProduct name

5. Replacement overview

HygroClip IC7-15-25HC2-IC702-AHygroClip IC5-15-25HC2-IC502-AHygroClip IC4-15-25HC2-IC402-AHygroClip IC-3-10-15/25HC2-IC310-AHygroClip IC-3-10HC2-IC310HygroClip IC-3-05-15/25HC2-IC305-AHygroClip IC-3-05HC2-IC305HygroClip IC-3-15/25HC2-IC302-AHygroClip IC-3HC2-IC302HygroClip IC-1-10HC2-IC110HygroClip IC-1-05HC2-IC105HygroClip IC-1HC2-IC102

ReplacesProduct name

5. Replacement overviewReplacesProduct name

HygroClip IM5HC2-IM502HygroClip IM4HC2-IM402HygroClip IM-3-10HC2-IM310HygroClip IM-3-05HC2-IM305HygroClip IM-3HC2-IM302HygroClip IM-1-10HC2-IM110HygroClip IM-1-05HC2-IM105HygroClip IM-1HC2-IM102

5. Replacement overviewReplacesProduct name

HygroClip IE3-M-10HC2-IE310HygroClip IE3-M-05HC2-IE305HygroClip IE3-MHC2-IE302HygroClip IE-1-M-10HC2-IE110HygroClip IE-1-M-05HC2-IE105HygroClip IE-1-MHC2-IE102

Only metal versions available

HygroClip 2

Introduction to Rotronic HygroClip2 Probes with AirChip ... · 1. HygroClip 2 in general The HC2...

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