A70-HT Relative Humidity & Air Temperature

Comptus Humidity and Air Temperature Transmitter provide analog output signals proportional to relative humidity and air temperature. These units are used in conjunction with electronic data collection systems or for input to industrial control systems. They are readily combined with meter relays to provide custom controls.

Systems are available with outputs of 0-­‐1 V or 4-­‐20 mA. The A70-­‐HT is powered from 6 -­‐ 30 VDC.

Temperature is detected using a Permalloy RTD, conforming to IEC 751 Standards. Relative humidity is sensed by a thin-­‐film polymer capacitor sensor with excellent durability in harsh environments. The temperature & relative humidity sensors are protected by a hydrophilic membrane under a wire meshscreen.

Each Comptus relative humidity and air temperature sensor system is provided with a detailed instruction manual. Comptus relative humidity and air temperature sensors are manufactured in the USA.

Model A70-HT

Relative Humidity & Air Temperature

Accuracy: +/-2% R. H., Temperature +/- 0.6 ° C
Use: General Monitoring 

The A70-HT provides analog output signals proportional to relative humidity and air temperature.  The A70-LPDD loop indicator can be used to display the sensed relative humidity and temperature with the 4-20 mA output. These units are used in conjunction with electronic data collection systems or for input to control systems. They are readily combined with meter relays to provide custom controls. 

Systems are available with outputs of 0-1 V or 4-20 mA. The A70-HT is powered from 6 - 30 VDC.

Temperature is detected using a Permalloy RTD, conforming to IEC 751 Standards. Relative humidity is sensed by a thin-film polymer capacitor sensor with excellent durability in harsh environments.  The temperature & relative humidity sensors are protected by a hydrophilic membrane under a wire mesh screen.

Each system is provided with a detailed instruction manual.

TECHNICAL SPECIFICATION:

3 to 95% R. H.

-4 to 167 F (-20 to 60 C)

Accuracy:

+/- 2% R. H.

+/- 1 F (+/- 0.6 C)

Output:

A70-HTL: 4-20 mA

A70-HTV: 0-1 VDC

Enclosure: ABS Plastic, NEMA 4X
Size: 2" L X 3" W X 1.5" D  
Weight :  8 ounces
Operating Temperature : -20 / 75 ° C 
Connectors :

Barrier strips to accept AWG 14 - 22 wire

Liquid tight wire gland for 0.09 to 0.265: diameter cable  

Accessories :  A96 Lightning protectors     
A70-LPDD Digital Display

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