- Products
- Vacuum Instruments
- VRC/VRP – Electronic Vacuum Switch with Relay Output
- VRC – Electronic Vacuum Switch
VRC – Electronic Vacuum Switch
Absolute Pressure 1200 to 5 mbar (=hPa), 900 Torr to 1 Torr
The VRC electronic vacuum switch can be used for directly switching a pump or valve in the rough vacuum range. An additional recorder output allows a continuous monitoring of the process pressure.
Benefits
- Chemically resistant ceramic sensor with Viton sealing (Kalrez sealing on request)
- Dry relay switch point (switch-over relay)
- High reliability
- Excellent reproducibility
- After detaching the top the switch point is easily adjustable over the whole range by means of a potentiometer
- Connection by KF small flange or G1/4 female thread
- Robust metal housing with IP54 protection class
Typical Applications
- Process automation
- Plant construction
- Control of vacuum appliances
- Operational control of vacuum pumps and plants
- Additional pump switching
- Pressure control in the rough vacuum range, e. g. for vacuum furnaces or control and regulation boards
Product Specifications:
- Measuring Principle Ceramic sensor, piezoresistiv, independent of gas type
- Materials In Contact With Vacuum Stainless steel 1.4305, Al2O3 Vito , Kalrez on request
- Measurement Range 1200 – 5 mbar (1050 – 4 Torr), max. overpressure: 4 bar absolute
- Accuracy +-0.3% full scale
- Setting Time 20 ms
- Power Supply 18 – 30 VDC
- Electrical Connection Phoenix screw terminals
- Power Consumption
- Without relay 50 mA, with relay 70 mA
- Operating Temperature 0…+40C
- Storage Temperature -10…+60C
- Recorder Output Actual value 10 mV/mbar, 5 mA
- Switch Point Set point output 0 – 1.2 V (1 mv / mbar),
- alternating relay contact 230 V, 5 A,
- hysteresis 7 mbar (standard, others on request)
- Vacuum Connection Stainless steel small flange DN 16 ISO-KF, G1/4 female thread
- Protection Class IP54
- Weight Approx. 450 g