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Manual abstract: user guide VAISALA HMW70DATASHEET
Detailed instructions for use are in the User's Guide.
[. . . ] www. vaisala. com
HMW60/70 Humidity and Temperature Transmitters for wall mounting in HVAC applications
Vaisala HUMICAP® Humidity and Temperature Transmitters HMW60 and HMW70 are designed for use in air conditioning applications where accurate and stable control of relative humidity and temperature are required.
Features/Benefits
Accuracy up to ±2 %RH True two-wire transmitters with 4 . . . [. . . ] The calibration can be done in seconds with a single potentiometer without disturbing the operation, resulting in great savings both in maintenance time and costs.
Measures both humidity and temperature
The HMW60 and HMW70 transmitters are available in three models: U for humidity measurement-only,
Technical data
60 series: 2-wire, 4 to 20 mA output
Wall mount RH only RH & T T only HMW60U HMW60Y HMW60T
General - 60 series
Supply voltage Output signal 10 . . . 20 mA
70 series: 3-wire, variable voltage output
Wall mount RH only RH & T T only HMW70U HMW70Y HMW70T
General - 70 series
Supply voltage range depends on the selected output signal DC AC 0 . . . 24 V Power consumption @ 24 VAC HMW70U 10 mA typical HMW70Y 12 mA typical
Relative humidity
Measurement range Accuracy at +20 °C
%RH 3 2 1 0 -1 -2 -3 0 10 20 30 40 50 60 70 80 90 100 %RH
0 . . . 95 %RH*
General
Operating temperature range electronics Storage temperature range Long-term humidity range for electronics Housing material IP Class 30 Fire resistance Colour Connections -5 . . . 85 %RH ABS plastic UL94-HB NCS-2502-R screw terminals 0. 5 . . . 1. 5 mm2
Temperature dependence
%RH 1. 0 0. 5 0 -0. 5 -1. 0 -10 0 10 20 30 40 50 60 °C
-5 °C, + 1 %
+55, + 0, 5 %
Response time at +20 °C (+68 °F), 90 % response 15 s +2 % RH / 2 years Stability Sensor HUMICAP® 180 * Output signal corresponds to 0 . . . 100 %RH
Complies with EMC standard EN61326 and EN55022
Temperature (Y and T models)
Linearity Sensor Measurement range Accuracy'
·C 0. 5 0. 4 0. 3 0. 2 0. 1 0 -0. 1 -0. 2 -0. 3 -0. 4 -0. 5 -10 0 10 20 30 40 50 60 · C
better than 0. 1 °C Pt 1000 IEC 751 class B -5 . . . 131 °F) **
** Optional temperature scales are available on request.
For more information, visit www. vaisala. com or contact us at sales@vaisala. com
Ref. [. . . ] All specifications -- technical included -- are subject to change without notice. [. . . ]
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