The 943-A-220V50-TR-PC Digital Controller for Cold Cathode Vacuum Gauges features a Torr unit readout, and requires 200 to 240 VAC, 50 Hz power. The 943 Vacuum Gauge Controller uses a high visibility LED display. An internal converter provides output that allows a simple log conversion from voltage to pressure over the entire operating range. And a fast responding, buffered analog output is also provided through the 15 pin accessory connector on the rear panel. The 943 digital controller features two standard independent relay set points, which allows you to confidently control your process. Adjust the set points from the front panel while viewing the display. Red LEDs indicate set point activation status. Front panel functions allow the user to disable the high voltage, as well as set a pressure at which the cold cathode will automatically turn off. This prevents the controller from displaying incorrect readings when the pressure goes above the operating range of the sensor.
80% maximum for temperatures less than 31°C, decreasing linearly to 50% maximum at 40°C
Altitude
2000 m maximum
Set Point Response
50 msec for pressures >10-8 Torr
Relays
2 independently set, SPDT contacts
Relay Contact Rating
1 Amp @ 30 VAC or 24 VDC, resistive load
Power Requirements
220 - 240 Volts, 50 Hz
Weight
2.5 lbs. (1.1 kg)
Units
Torr
Display
Red LED, 7 segments digits 14 mm in height, ±60° viewing angle, 2 digits (1 leading) with 1.5 digit signed exponent, update rate: 250 msec
Controls
Power on/off, set point and protect view buttons, LED set point indicators, set point and protect adjust potentiometers, high voltage on/off/remote toggle switch
Output Voltage
Analog: 0 - 9 VDC, Logarithmic Analog: 1 - 9 VDC, 1 V per decade
Compliance
CE
Technical Specs
Type
Vacuum Gauge Controller
Measurement Range
1.0 x 10-10 - 1.0 x 10-2 Torr
Set Point Range
2.0 x 10-9 - 9.0 - 10-3 Torr
Resolution
1% of indicated decade
Operating Temperature
5 - 40°C (41 - 104°F)
Storage Temperature
-10 - 55°C (14 - 104°F)
Relative Humidity
80% maximum for temperatures less than 31°C, decreasing linearly to 50% maximum at 40°C
Altitude
2000 m maximum
Set Point Response
50 msec for pressures >10-8 Torr
Relays
2 independently set, SPDT contacts
Relay Contact Rating
1 Amp @ 30 VAC or 24 VDC, resistive load
Power Requirements
220 - 240 Volts, 50 Hz
Weight
2.5 lbs. (1.1 kg)
Units
Torr
Display
Red LED, 7 segments digits 14 mm in height, ±60° viewing angle, 2 digits (1 leading) with 1.5 digit signed exponent, update rate: 250 msec
Controls
Power on/off, set point and protect view buttons, LED set point indicators, set point and protect adjust potentiometers, high voltage on/off/remote toggle switch
Output Voltage
Analog: 0 - 9 VDC, Logarithmic Analog: 1 - 9 VDC, 1 V per decade
Additional CAD file downloads are not available for this product.
943-A-220V50-TR-PC - Drawings
Additional drawings are not available for this product.
943-A-220V50-TR-PC
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