Related Manuals for Rotronic HygroClip M22 Series
Summary of Contents for Rotronic HygroClip M22 Series
- Page 1 HygroClip M22 Series 2-wire loop powered humidity temperature transmitters INSTRUCTION MANUAL 20020530...
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Page 2: Table Of Contents
CONTENTS Overview..........................3 Operation..........................5 Power supply ............................5 HygroClip S digital probe......................... 5 Temperature operating range and limits ....................6 Humidity limits ............................6 Temperature compensation of the humidity sensor ................6 Output range............................6 Output signals............................6 Installation..........................7 General recommendations ........................ -
Page 3: Overview
_____________________________________________________________________________ Overview The HygroClip M22 series are 2-wire, loop powered transmitters used to measure humidity and temperature in manufacturing areas, clean rooms, research laboratories and other industrial applications. Linearized output signals (DC current) are provided for transmission over a length of cable to a remote display, recorder, controller or data processing unit. - Page 4 _____________________________________________________________________________ The M22 series is available in the following configurations: Model Measurement Circuit Type Installation M22W %RH + Temperature 2-Wire Loop Powered Wall mount (surface) or remote probe M22D %RH + Temperature 2-Wire Loop Powered Duct mount (through Wall) *) remote probe requires an extension cable (see accessories) M22W M22D _________________________________________________________________________________...
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Page 5: Operation
HygroClip S operating range -40 to 85ºC (-40 to 185ºF) wire mesh filter length: 100mm (3.9"), d: 15mm (0.6") 1) Special environments may require using a foam filter (consult ROTRONIC). The HygroClip S measures relative humidity with a ROTRONIC M22W HYGROMER C94 capacitive humidity sensor. -
Page 6: Temperature Operating Range And Limits
_____________________________________________________________________________ Temperature operating range and limits The M22 series can operate within -40 to 60°C (-40 to 140°F) at the electronics. The temperature operating range of the HygroClip S probe is -40…85°C (-40…185°F). Operating the transmitter and/or its probe outside of the temperature limits can result in permanent damage. -
Page 7: Installation
_____________________________________________________________________________ Installation Do not unnecessarily remove the dust filter from the HygroClip probe. The sensors can easily be damaged when not protected. General recommendations Relative humidity is extremely dependent on temperature. Proper measurement of relative humidity requires that the probe and its sensors be at exactly the temperature of the environment to be measured. -
Page 8: Installation And Removal Of The Hygroclip S Probe
_____________________________________________________________________________ by the total resistance resulting from the addition of the cable resistance and that of the devices connected in series with the unit. This resistance should not exceed 250 ohms. Base Plate Terminals Description 1 and 3 10…35 VDC (+) temperature output relative humidity output 5 and 6... - Page 9 _____________________________________________________________________________ _________________________________________________________________________________ in_m22.doc...
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Page 10: Installation Of The Electronics Module
Periodic calibration check of the probe Long term stability of the ROTRONIC Hygromer humidity sensor is typically better than 1 %RH per year. For maximum accuracy, calibration of the probe should be verified every 6 to 12 months. - Page 11 -11- _____________________________________________________________________________ _________________________________________________________________________________ in_m22.doc...
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Page 12: Service Connector
For details, see accessories - service cable below. Do not touch the T min and H min potentiometers. These are for factory adjustment only. Optional display Pop out the ROTRONIC label to access the service connector Service Connector Pin # Wire Color Signal... -
Page 13: Extension Cable For The Hygroclip S (Used With Model M22W)
The MOK-03-WIN cable is used to calibrate the HygroClip S probe independently from the M22 transmitter. The MOK-03-WIN cable connects the HygroClip S probe to the COM port of a PC. This cable is shipped together with the Rotronic HW3 software which is used to read and calibrate the probe from the PC. -
Page 14: Service Cables
-14- _____________________________________________________________________________ Service cables Service cable ACRL420 is used to connect the service connector of the M22 to probe input 1 of the HygroPalm 3 portable indicator / calibrator. The service cable allows to do one of the following: a) Read the analog output signals of the M22 transmitter with the HygroPalm 3. The analog signals are read in %RH and in ACRL420 service cable °C (or °F, depending on the configuration of... -
Page 15: Probe Simulators
-15- _____________________________________________________________________________ Y-adapter Cable The Y-adapter cable ACRLYB5 splits the signal from the ACRL420 cable so as make a simultaneous connection with both probe inputs of the HygroPalm 3 (probe 1: analog and probe 2: digital). Probe input 1 HygroPalm Service connector Probe input 2... -
Page 16: Specifications
-16- _____________________________________________________________________________ Specifications Probe (plug-in) HygroClip S Operating limits at probe 0…100%RH and -40…85°C (-40…185°F) Operating limits at transmitter 0...99%RH non condensing -40...60°C (-40...140°F) Standard humidity output range 0..100 %RH Standard temperature output ranges 0..100°F or 0..100°C Output signals (linear) 4-20 mA (max. -
Page 17: Appendix 1: Practical Advice For Measuring Humidity
Rotronic together with the ACRL420 service cable. Configuration of the HygroPalm requires a PC with the Rotronic HW3 software installed. Both current loops of the M22 transmitter should be closed. To calibrate the probe connected to the M22 transmitter, select probe 2 on the HygroPalm and enter one of the calibration modes the HygroPalm (1-point calibration, multi- point calibration). -
Page 18: Appendix 3: Accessories For The M22 Series
-18- _____________________________________________________________________________ Appendix 3: Accessories for the M22 Series Order Code Description HW3 software (CD ROM) HygroPalm 3 HygroPalm 3, field calibrator ACRL420 Cable service connector M22 to HygroPalm 3 (probe input 1 ) ACRLYB5 Y-connection cable for use with the ACLR420 cable and HygroPalm 3. Allows to calibrate the HygroClip S probe and to read the analog outputs of the transmitter.
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