Hygrocontrol Type 81 / 82 RH and Temperature Transmitter
Duct or wall mount, accuracy up to 1.5 %RH, temp range up to 302°F (150°C), polycarbonate housing
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- Type 81: duct mount
- Type 82: wall mount
- 0 to 100% RH range / Dew point -20 to 80°C
- -58 to 302°F(-50 to 150°C) temp range
- Accuracy up to 1.5 %RH
- Polycarbonate housing
- PTFE, SS 316, or polypropylene probe materials
- 15 or 25 mm probe diameter
- Analog outputs (current or voltage)
- Optional graphical display
- IP65 protection class
- 4" or 6" probe lengths available
The Hygrocontrol Type 81 / 82 RH and Temperature Transmitter is measured by a capacitance type sensing element with polymer dielectric medium. The temperature sensor is a Pt-1000 Ohm RTD. The Type 81 / 82 Transmitters are provided with software guided multi-point calibration with up to 20 calibration points. They feature a an accuracy up to 1.5 %RH. Built-in special temperature compensation corrects humidity values for deviations caused by temperature fluctuations at the sensor and the electronics.
The Model 81 is built for critical measurements of the relative humidity and temperature in ducts with general purpose area classification. Model 82 is built for similar applications but for wall-mounting.
The 81 / 82 Models feature Polycarbonate housing that meets NEMA 4, 12 and 13. The probes are available in different lengths and diameters. The transmitters are made from PTFE, stainless steel 316, or polypropylene. Models 81 / 82 feature analog outputs (current or voltage) and optionally available is a graphic display. Various sensor filter options and accessories for calibration are optionally available.