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VRC Vacuum Switch

Product catalog summary

Overview: The document provides technical specifications and features of the VRC - Vacuum Switch Piezo, designed for controlling vacuum appliances and processes. It highlights its applications, reliability, and technical data.

Applications: The VRC is used in plant construction, operational control of vacuum pumps, security switching, additional pump switching, and pressure control in rough vacuum ranges, such as vacuum furnaces.

Key Features: The VRC offers high reliability and excellent reproducibility. It connects to a vacuum source via KF small flange or G1/4 female thread. The switch point is adjustable using a potentiometer. It features a robust metal housing with IP54 protection, a potential-free relay switch point, and a chemically resistant ceramic sensor with FKM sealing.

Technical Specifications:

Absolute Pressure Range: 1200 to 1 mbar
Set-Point Range: VRC: 10 - 1200 mbar, VRCI: 5 - 1200 mbar
Relay Contact: 230 V, 5 A
Vacuum Connection: Stainless steel small flange DN 16 ISO-KF, G1/4 female thread
Protection Class: IP54
Weight: Approx. 450 g
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...+40°C
Storage Temperature: -10...+60°C
Recorder Output: Actual value 0 - 12 V (10 mV/mbar), max. 5 mA
Switch Point Output: 0 - 1.2 V (1 mV/mbar)
Measuring Principle: Piezo resistive, independent of gas type
Materials: Stainless steel 1.4305, Al2O3, FKM (FFKM on request)
Measurement Range: 1200 - 1 mbar, max. overpressure: 4 bar absolute

Model Designations: The VRC is available with DN 16 ISO-KF and G1/4 female thread, with set-point ranges and hysteresis values specified for different models.

Catalog excerpts

VRC - Vacuum Switch Piezo Absolute Pressure 1200 to 1 mbar Typical applications Control of vacuum appliances Chemically resistant ceramic sensor with FKM sealing, FFKM sealing on request Potential-free relay switch point (switch-over relay) High reliability Security switching Excellent reproducibility Additional pump switching Connection to vacuum source by KF small flange or G1/4 female thread After detaching the top the switch point is exactly adjustable over the whole range by means of a potentiometer Operational control of vacuum pumps and plants Pressure control in the rough vacuum range, e. g. for vacuum furnaces or control and regulation boards Process engineering Plant construction Vacuum compatible connection Robust metal housing with IP54 protection class

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VRC - Vacuum Switch Piezo Absolute Pressure 1200 to 1 mbar Technical Data Measuring Principle Piezo resistive, independent of gas type ______________________________________________________________________________________________________________ Materials With Vac. Contact Stainless steel 1.4305, Al2O3, FKM (FFKM on request) ______________________________________________________________________________________________________________ Measurement Range 1200 - 1 mbar (1050 - 1 Torr), max. overpressure: 4 bar absolute ______________________________________________________________________________________________________________...

Open the catalog to page 2

VRC - Vacuum Switch Piezo Absolute Pressure 1200 to 1 mbar Model designations DN 16 ISO-KF with G1/4 female thread, stainless steel Set-Point range: 10 - 1200 hPa, Set point ex works: 20 hPa, Hysteresis -7 hPa DN 16 ISO-KF with G1/4 female thread, stainless steel, inverted switching logic, Set-Point range: 5 - 1200 hPa, Set point ex works: 20 hPa, Hysteresis +4 hPa SERVICESP Switch-Point default setting upon customer request

Open the catalog to page 3

VRC Vacuum Switch

VRC Vacuum Switch

Catalog excerpts

All Thyracont Vacuum Instruments GmbH catalogs and technical brochures