VRP Electronic Vacuum Switch ● Pirani ● 20 to 1e-3 mbar
€ 392.00 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.
Weight | 1.1 kg |
---|---|
Dimensions | 25 × 16 × 9 cm |
Measurement principle | |
Gas dependency | depending on gas type |
Materials in contact with vacuum | Stainless steel 1.4307, tungsten, nickel, glass |
Measurement range 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 | |
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: | |
Protection class | |
Weight | Approx. 450 g |
Data sheets, manuals, 3D models and more |
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. |
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