ACI 122661 Duct Relative Humidity Sensor with 10K Thermistor

The ACI 122661 (A/RH2-CP-D) is a duct-mount relative humidity and temperature sensor designed for Building Automation Systems (BAS) and HVAC applications. This sensor 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.

Key Features:

• ±2% relative humidity accuracy
• On board DIP switches which allow the user to select the desired output signal: 0-5 VDC, 0-10 VDC, or 4-20mA (default)
• 10K Type II thermistor for temperature sensing
• Compatible with AC or DC power sources
• Contains 0%, 50%, and 100% test options to verify that the transmitter is both working and wired properly
• Field calibration can be performed by using the increment and decrement calibration DIP switches without the need to replace the sensing element
• Sensitivity of 0.1% RH
• Euro-style plastic duct enclosure

Each A/RH2 Series humidity transmitter is calibrated using a NIST Traceable Temperature/Humidity Chamber. The transmitters are compatible with stainless steel wall plate applications and are designed for use in Building Automation Systems, BAS, and HVAC applications. Backed by a 5-year warranty and made in the USA.