HI 8666 Compact Relative Humidity and Temperature Transmitter

This state-of-the-art solid-state sensor plugs into its wall-mounted receptacle for on-site, continuous monitoring of relative humidity and temperature in critical or controlled environments. Two separate 4-20 mA analog signals which can be powered by a single external voltage source can be sent to remote panel meters, controllers, or data acquisition systems. Applications include environmental chambers, HVAC installations, building management, clean rooms, calibration labs and museums. The HI 8666 has an accuracy of ±2% RH and ±1%ºC. It can be used in dusty environments by adding a furnished removable sintered-metal cap. With its plug-in convenience, the unit can be quickly removed and replaced; so the cleaning or calibration checks cause no costly downtime in the production area.

Specifications

Range:

0.00% (4 mA) to 100.00% RH (20 mA)
-20.0°C (4 mA) to +60.0°C (20 mA)

Resolution:

±0.125% RH, ±0.02 mA
±0.1°C ±0.02 mA

Accuracy: ±2.000% RH (5% to 95% RH); ±1.0% ºC
Response Time: 6 seconds without sintered filter, 60 seconds with filter
Power Supply: 24 volts DC (supplied externally)
Environment: 32 to 140°F (-20 to 60°C)
Dimensions: 3.1 x 1.9 x 5.5" (79 x 49 x 140 mm)
Weight: 7 oz. (200 g)

Cat. No.	Model/Description	Price
19P22	HI 8666 Compact Relative Humidity And Temperature Transmitters Requires Part Number HI-7164 Undecal Connector priced at $35.00	$292.00

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