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KJLC® 937B Series Wide-Range Combination Gauges

Note KJLC no longer offers the 937 multi gauge controller and there is no direct replacement at this time. Please contact the KJLC product team at gauging@lesker.com with any additional questions.

These controllers combine the technologies of the cold cathode, standard Pirani, convection Pirani, thermocouple, and capacitance manometer sensors to measure from ultrahigh vacuum to overatmospheric pressure.

Features

  • Control up to five sensors simultaneously
  • Configured to the user's specifications regarding sensor, line voltage and frequency, units of measure, and communication choice
  • May contain a cold cathode board, and can be configured with two more gauge boards to accommodate up to four additional gauges
  • Can also be configured with two additional cold cathode boards, enabling the simultaneous operation of three high vacuum gauges
  • Dual or single gauge boards for the standard Pirani, convection Pirani, thermocouple, and capacitance manometer sensors

Along with analog outputs, the 937B can input and output digital data for direct computer communication. A slot is available in the controller for an optional board that supports RS-232, RS-485, or Profibus DPV1 communications. The 937B can communicate with a host computer with either of these ports.


Product Manual Click here to download the product manual for this part.

Specifications Table

Measurement Range1 x 10-11 to 1 x 1,500 Torr (1.33 x 10-11 to 2,000 mbar)
Communications InterfaceRS-232, RS-485, Profibus
Power Requirements100,120, 220, or 240 VAC, 50 or 60 Hz (35W)
Temperature (operating)5-40° C
DisplayDigital LCD (5 separate pressure displays)
Set-Point Range5 (pressure dependent)
Set-Point Relays5 SPDT Relays, 2A @ 230 VAC
Analog Outputs1. Buffered analog outputs for each gauge 2. Logarithmic outputs for each gauge (0.6V/decade) 3. Combination output combining cold cathode with auxiliary
Response Time< 1.0 sec
Leak TestRelative logarithmic bar graph display & variable rate audio signal
Compatible Sensors (gauges)Cold Cathode, Standard Pirani, Convection Pirani, Thermocouple, Capacitance Manometers

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