The HX92A Series has been discontinued. Please see the
HX92B Series as a possible alternative or contact our Temperature Engineering department.
The model HX92A is an economical humidity transmitter, providing on-site continuous monitoring of relative humidity. It is a 2-wire transmitter with either voltage or 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 6 V allows the use of large impedances for longer wire runs. The HX93A is a similar unit that provides transmitter outputs for both humidity and temperature.
SPECIFICATIONS Input Voltage Range: 24 Vdc nominal (6 to 30 Vdc) Measuring Range RH: 3 to 95% Temperature: -20 to 75°C (-4 to 167°F) Accuracy RH: ±2.5% RH from 20 to 80% RH; ±3.1% RH below 20 and above 80% RH @ 22°C with temp coefficient of ±0.1% RH/°F Output HX92AC: 4 to 20 mA for 0 to 100% RH HX92AV: 0 to 1 Vdc for 0 to 100% RH RH Temperature Compensation: -20 to 75°C (-4 to 167°F) RH Time Constant (90% response at 25°C, in moving air at 1m/s): >10 seconds, 10 to 90% RH >15 seconds, 90 to 10% RH Repeatability: ±1% RH, 0.5°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 2 to 7 mm (0.09 to 0.265") diameter cable; internal 4-pin terminal block accepts 14 to 22 gage wire Dimensions
HX92A(*) & HX92A(*)-D: Enclosure: 49.8 x 64.8 x 34.8 mm (1.96 x 2.55 x 1.37") HX92A(*)-D: Probe: 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)
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