The 5 CHANNEL CALIBRATOR CleanAir is designed to interface CEM analyzers with five individual calibration gases. The gases can be controlled manually or remotely to pass through one of the two calibration ports. Sub-rack designed for installation in a standard 19 "instrument rack. The flowmeter with stainless steel needle valve provides indication and control of calibration gas flow from 1 to 10 l / min. Automatic mode allows a data acquisition system equipped with a dry contact closure to control the calibration points remotely A 12 VDC output signal is provided for use by the control system via an Amphenol connector located on the back of the 5-channel calibrator.