Newport HX92A Humidity Transmitter

Newport HX92A Humidity Transmitter

The model HX92A is an economical humidity transmitter, providing on-site continuous monitoring of relative humidity. It is available with either voltage or 2-wire current output. The transmitter output is linearized, and RH readings are temperature compensated. A thin-film polymer capacitor senses relative humidity. The sensor is protected by a stainless mesh-type filter that is easily removable for cleaning. The case and weathertight protection, and screws are provided for mounting the unit via internal hole. An unusually low minimum voltage of 6V allows the use of large impedances for longer wire runs.

Specifications:

Input Voltage Range
24 Vdc nominal (6 to 30 Vdc)

Measuring Range
RH: 3 to 95%
Temperature: -20 to 75 Deg C (-4 to 167 Deg F)

Accuracy
RH: +/-2.5% RH from 20 to 80% RH;
+/-3.1% RH below 20 and above 80% RH @ 25 Deg C with temp coefficient of +/-0.1%RH/Deg F

Output
HX92AC: 4 to 20 mA for 0 to 100% RH
HX92AV: 0 to 1Vdc for 0 to 100% RHRH

Temperature Compensation: -20 to 75 Deg C (-4 to 167 Deg F)
RH Time: Constant (90% response at 25 Deg C, in moving air at 1m/s):>10 seconds, 10 to 90% RH; >15 seconds, 90 to 10% RH
Repeatability: +/-1% RH, 0.5 Deg F
Housing: ABS plastic watertight enclosure; meets NEMA 1, 2, 3, 3R, 4, 4X, 5, 12 and 13 specifications
Connections: Liquid-tight nylon with neoprene gland, for 0.09 to 0.265" diameter cable; internal
4-pin terminal block accepts 14 to 22 gage wire

Dimensions

Enclosure: HX92A(*) & HX92A(*)-D: 49.8 x 64.8 x 34.8 mm (1.96" x 2.55 x 1.37")
Probe: HX92A(*)-D: 15.7 D x 124.5 mm L (0.620" x 4.9")
Weight: HX92A(*) 82 g (2.9 oz); HX92A(*)-D 100 g (3.5 oz)