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

Name: VRP Electronic Vacuum Switch ● Pirani ● 20 to 1e-3 mbar
SKU: VRP
Availability: InStock

$463,00 excl. VAT and transport costs

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.

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SKU: VRP Category: Vacuum switches Tags: 20 - 1e-3 mbar, Pirani, Vacuum switch

Weight	1,1 kg
Dimensions	25 × 16 × 9 cm
Measurement principle	Pirani
Gas dependency	depending on gas type
Materials in contact with vacuum	Stainless steel 1.4307, tungsten, nickel, glass
Measurement range mbar	20 – 1e-3 mbar
Measurement range Torr	15 – 1e-3 Torr
max. overload	4 bar abs.
Accuracy	20 – 1e-2 mbar: 10% f.r.
Response time	200 ms
Voltage supply	18 – 30 VDC
Electrical connection	Phoenix screw terminals
Power consumption	Without relay: 80 mA, with relay 100 mA
Operating temperature	0…+40°C
Storage temperature	-10…+60 °C
recorder output	0 – 1 V or 0 – 10 V; 5 mA
Switch Point	Alternating relay contact 230 V, 5 A, hysteresis depending on pressure range (e. g. 6% at 1 mbar, 34% at 0.01 mbar)
Vacuum connection	Stainless steel small flange DN 16 ISO-KF
Material Number:	Stainl. steel small flange DN 16 ISO-KF
Protection class	IP54
Weight	Approx. 450 g

Vakuum Switches

What does “piezoresistive” mean?

By changing the presUnder the effect of pressure, a thin membrane with a resistance measuring bridge on the back is deformed. These piezoresistive resistors change under compressive or tensile stress. The resulting detuning of the measuring bridge is a measure of the absolute pressure acting on the diaphragm.

How is the switching point set?

First, the housing cover must be removed to prevent unintentional adjustment. The switching point is set using a potentiometer, whereby the value of the switching point is output as a 0 - 1 V analog signal for checking purposes.

Can you display the measurement values?

Yes, the measurement values are displayed as a 0-10 V analog signal.