Supply Voltage: 16.5 to 28.0 VDC

Accuracy: ±2.5% RH from 10 to 80% RH Includes hysteresis, linearity, repeatability, and all temperature and voltage effects

Signal Output: 4-20 mA

Maximum Output Impedance:

FI: 725 O @ 24VDC

FX: 375 O @ 24VDC

Entity Parameters: Vmax 28V, Imax 100mA, Ci 0.037µF, Li 0mH

Area:

FI: Class I, Div. 1, 2, Groups A, B, C, D; Class II, Div. 1, 2, Groups E, F, G; Class III, Div. 1, 2; Class I, Zone 0, Aex ia IIC T4

FX: Class I, Div. 1, 2, Groups B, C, D; Class II, Div. 1, 2, Groups E, F, G; Class III, Div. 1,2

Sensor Type: RH: Thin film capacitive element

Optional Temperature: 1000 O platinum RTD, 385 curve

Response Time: 50 seconds in slow moving air

Operating Temperature:

HT880: -40° to 176°F (-40° to 80°C)

HT885: -4° to 176°F (-20° to 80°C)

Operating Humidity: 0 to 100% RH

Conduit Connection: 1/2" FNPT

Mounting: 1/2" MNPT and bracket sold separately

Adjustments: Non-interacting zero/span

Display (HT885): 3.5 digit LCD display, % RH and optional °F or °C

Enclosure Rating: NEMA 4X, Metal with screw-on cover

Sensor Filter: 60 micron stainless steel sintered filter

Sensor Range: 0% to 100% RH

Wiring: Terminals, 22-14 AWG

Weight:

HT880: 2.8 lb (1.3 Kg)

HT885: 4.5 lb (2.02 Kg)

Approvals: FM

Warranty: 3 years