INTRODUCTION
3.1 GENERAL DESCRIPTION
The HX200 Series is a family of humidity probes and electronic modules that offer %RH and dew point
measurements with NIST traceable calibration. All stainless-steel probe construction coupled with a high
temperature cable allows up to 200c operations. For pressure applications the probe is capable of handling
750PSI.
The HX200 series is offered in 8 versions, dew point/temperature-(HX200HD, HX200HD-RS, HX200HD-W, &
HX200HD-W-RS), % RH/temperature- (HX200HR, HX200HR-RS, & HX200HR-W, & Hx200HR-W-RS)
The HX200HD pressure version has an enhance calibration for measuring dew points down to -60C. The
HX200HR -RH version has an accuracy of +/-1.0% at 25C. These two models provide a single two wire loop
powered 4-20mA interface. The HX200-RS version has all the features of the prior models but has a RS232
signal that outputs RH, temperature and dew point. These units accept a voltage source from 12 to 28Vdc,
24Vdc is recommended. These units will display temperature along with RH or dew point depending on the
version selected. The RS232 allows a user to scale their outputs ranges as well as displayed units. The unit
and sensor are connected via a 1-meter high temperature cable. This unit has a single output, 4-20mA
output wiring and can provide a signal up to 400 ft.
3.2.1 HX200 Series
Operating temperature: 0C to 200C, no- condensation condition, non-steam applications, max dew point 95C
Electronics 0C to 85C
All units will come with a traceable NIST calibration certificate.
For the HX200HR series
HX200HR is ideal for environmental chamber, clean rooms and high temperature applications
One Analog Output: 4-20mA Loop Power corresponds 0-100% RH.
Output signal resolution: 0.03%RH
Power Supply: 12 to 28Vdc, 25 mA max. 24Vdc
recommended Display resolutions: 0.1% RH
RH Accuracy: +/- 1% at 25C
Temp. Accuracy: +/- 0.5°C from 0 to 100C, >100C +/-1C
Mounting: Cable Length: 1 meter (except wall units)
SS Material: Probe, filter guard and fitting
Dimensions of Probe: Length: 6.5” (185mm), O.D.: 0.5” (13mm)
For the HX200HD series
HX200HD series are ideal unit for compressed air and dryer applications.
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