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