A/RH3-CP-D

A/RH3-CP-D is a RHx-CP series relative humidity duct thermistor. It utilizes a thermoset polymer capacitive sensing element with a factory-fitted hydrophobic filter to improve its moisture resistance. The sensing elements' multilayer construction also provides excellent resistance in applications where dust, dirt, oils and common environmental chemicals are found. The RH duct sensor includes on-board DIP switches, which allow the user to select the desired output signal and can be powered by AC or DC power sources. Field calibration can be performed by using the increment and decrement calibration DIP switches without the need to replace the sensing element. These enhancements provide increased flexibility and outstanding long-term reliability without the need to replace the sensors in the field. Applications include humidification, dehumidification, supply/discharge/return air, economizers, clean rooms, data centres, process control, schools, hospitals, and office buildings.

• 10kohm nominal thermistor resistive output at 77°F (25°C)
• White/green lead wire colours
• Duct (Euro enclosure) configuration
• RH measurement range from 0-100%
• Operating RH range from 0 to 95% RH, non-condensing (conformally coated PCB’s)
• Operating temperature range from -40 to 140°F (-40 to 60°C)
• RH response time (T63) is 20seconds typical
• Capacitive with hydrophobic filter RH sensor type
• RH transmitter stabilization time is 30minutes (recommended time before doing accuracy verification)
• RH terminal block torque rating range from 4.43 to 5.31lb-in (0.5 to 0.6Nm)