Cold cathode gauge controller

04/01/1998

Cold cathode gauge controller

The Series 943 digital controller measures from medium to ultrahigh vacuum pressures. It operates the I-Mag gauge or the series 421 cold cathode gauge with a measurement range of 10-2 to 10-10 torr, and it includes an LED digital readout, two adjustable setpoints with LEDs, high-voltage protection, and analog output. Measurement units available are torr, mbar, or Pascal. The cold cathodes are inverted magnetron sensors, whose design includes an isolated collector, making the sensor less susceptible to contamination and allowing a wider range of pressure measurement. MKS Instruments/HPS Div., Boulder, CO; ph 800/345-1967 or 303/449-9861, fax 303/449-2003, www.mksinst.com