Omega Engineering”scompressed-air dewpoint monitors are fully NIST-traceable and employ achilled mirror sensor to deliver consistent, drift-free measurementswithout regular calibrations or sensor replacement. A ruggedizedaluminum NEMA 12 (IP55) enclosure houses the sensor, control circuitry (including flow control) and can be easily wall-mounted to conservespace. The system also offers a programmable automatic balance control(ABC) cycle that corrects for the light-reducing effects of mirrorcontaminants and allows for continuous monitoring and virtually maintenance-free operation.