A/RH3-AN-O

A/RH3-AN-O is a RHx-AN series relative humidity, outside air thermistor. It utilizes a thermoset polymer capacitive sensing element with a factory-applied hygroscopic filter to deliver a proportional analogue current or voltage output signal. The hygroscopic filter provides added resistance to moisture, dust, and other chemicals for greater long-term reliability. The RH outside air transmitter features integral DIP switches for field selection of the proper output signal and supply voltage to meet the user's application requirements. Field calibration can also 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. Applications include monitoring outdoor air humidity, economizer control, psychrometric calculations such as enthalpy and dew point, and wash-down applications.

• 10kohm nominal thermistor resistive output at 77°F (25°C)
• White/white lead wire colors
• Outside air (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)