Humidity and Temperature Transmitter Type 81/820 pages

Humidity and Temperature Transmitter Type 81/82

Principal of Operation

Relative Humidity (RH) is measured by a capacitance type sensing element
with polymer dielectric medium.
The temperature sensor is a Pt-1000 Ohm RTD.
Software guided multi-point calibration with up to 20 calibration points
provides an accuracy of 1.5 %RH. Built-in special temperature compensation
corrects humidity values for deviations caused by temperature fluctuations at
the sensor and the electronics.

Applications
Model 81 is built for critical measurements of the rel relative humidity and temperature in ducts with general purpose area classification. Model 82 is built for
similar applications but for wall-mounting.

Construction

Polycarbonate housings meet NEMA 4, 12, 13. Probes are available in different
lengths and diameters, 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.

Features
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Exceptionally accurate and
stable humidity and temperature measurement.

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Proven robust sensor design

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Fixed-mount or flexible probes

COSA Xentaur Corporation
84G Horseblock Road
Yaphank, NY 11980 USA
Website: www.CosaXentaur.com
Email: sales@cosaxentaur.com

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Probe materials and sizes for a
large variety of applications.

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Linearized analog outputs for
user electable Engineering units

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(RH, dew point °C/°F, etc.)

Type 81
Type 82