Vacuum Switches

VRC Electronic Vacuum Switch ● Piezo ● 1400 to1 mbar

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.

VRP Electronic Vacuum Switch ● Pirani ● 20 to 1e-3 mbar

The VRP electronic vacuum switch can be used for directly switching a pump or valve in the fine vacuum range. An additional recorder output allows a continuous monitoring of the process pressure.

VRCI Electronic Vacuum Switch ● Piezo ● 1200 to 1 mbar

The electronic vacuum switch VRCI with inverted switching logic functions as safty switch or for direct switching of pumps or valves in rough vacuum. Due to the additional output of a measuring signal, a process can be monitored without any problems.

At a Glance

Description

Weight	1.1 kg
Dimensions	25 x 16 x 9 cm
Measurement principle	Piezo resistive
Set-Point Range	5-1200 mbar
Gas dependency	independent of gas type (Piezo)
Materials in contact with vacuum	Stainless steel, 1.4305, Al₂O₃, ceramic, FKM
Accuracy	0.3 f.s.
Response time	20 ms
Voltage 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	0-1 V or 0-10 V; 5mA
Switch Point	Switch Point 20 hPa/Hysteresis -7 mbar (standard, others on request)
Article Number (choice of vacuum connection):	stainless steel small flange DN 16 ISO-KF with G1/4- female thread
Protection class	IP54
Weight	Approx. 450 g