Kele 2% and 3% Relative Humidity Transmitters
Model KHR, KHD, and KHO Humidity Transmitters are specifically designed for use in HVAC/BAS applications. These instruments measure relative humidity from 0% to 100%. The standard two-wire, 4-20 mA output provides low cost humidity monitoring for building control. The RH transmitter is available with thermistor or RTD temperature sensors or a 4-20 mA rangeable temperature transmitter. They are available in room, duct, and OSA mounting styles.
- Packaged for Price and Performance
- Calibration free Interchangeable sensors
- Twelve point computerized calibration
- 0% to 100% RH measurement
- and ±3% accuracy (5% to 95% RH)
- Temperature compensated
- No need to remove mounting box to replace sensor
- Attractive new room enclosure design
- Two-wire, 4-20 mA output
- Custom Logo's
- Optional push button, LED and comm. jack
- Optional temp.sensor (Thermistor or RTD)
Sensor:Precon HS2000 Capacitive sensor
Accuracy:±2% or ±3% RH from 0 to 70ºC, 5% to 95% RH non-condensing
Temperature effect:Temperature compensated with <0.008% RH per ºC
Long-term stability:<±0.5% drift per year
Ambient temperature:-22º to 185ºF (-30º to 85ºC)
Optional temperature sensor
Thermistor:Type 3, 21, 22, 24, 27, 42
RTD:Type 81, 85, 91
Output:Two-wire, loop-powered, 4-20 mA = 0% to 100% RH linear
Supply voltage:8.5-28 VDC
Load impedance:(Supply voltage - 8.5 VDC) / 0.02 i.e., 775 Ω @ 24 VDC
Options:N.O. button, communication jack, LED indication
Connections:Screw terminals
Enclosure
Room:White plastic, UL94HB
Duct:Metal handy box
OSA:Universal Plastic box
Weight
Room/OSA:0.2 lb (0.084 kg)
Duct:1 lb (0.45kg)
Warranty:18 months
