INFICON VACUUM SWITCH

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INFICON VACUUM SWITCH 

INFICON Vacuum Switch is created for accurate and reliable detecting pressure. These durable electronic switches are used in a variety of vacuum applications, including pressure interlock. The vacuum switch come in two varieties: absolute (references vacuum) and differential (references ambient).

FEATURES

  • IP 44 protection
  • Relay output with potential free contacts
  • High-accuracy temperature compensated sensor
  • Application pressure range 1×10-9 mbar … 2 bar

ADVANTAGES

  • Corrosion resistant all stainless steel design
  • Robust design, cleanroom compliant
  • Easy installation with setpoints factory preset or field-adjustable

TYPICAL APPLICATIONS

  • Atmospheric pressure detection for all vacuum applications
  • Pressure interlock (power supplies, gas supplies, pumps, valves, actuators, etc.)
  • Vacuum to high vacuum

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ABSOLUTE VACUUM SWITCH

Type 1100 mbar 1000 Torr
Full Scale (F.S.) 1100 1000
Setpoint range
Admissible pressure bar (absolute) 5 5
Setpoint relay
Relay output Relay output n.o., n.c., potential free n.o., n.c., potential free
Contact rating 30 30
Setpoint accuracy Torr ± 5 ± 5
Temperature effect on zero and span percent FS/°C ≤±0.02 ≤±0.02
Response time ms ≤45 ≤45
Hysteresis Torr 20 20
Electrical connection D-Sub, 9-pin D-Sub, 9-pin
Supply voltage V (dc) 14 … 30 14 … 30
Power consumption W <0.5 <0.5
Admissible temperature
Operation (ambient) °C 0 … 70 0 … 70
Storage °C –40 … 80 –40 … 80
Materials exposed to vacuum stainless steel stainless steel
Mounting orientation any any
Internal volume
DN 16 ISO-KF cm³ (in.³) 2.81 (0.17) 2.81 (0.17)
4 VCR cm³ (in.³) 0.93 (0.057) 0.93 (0.057)
Weight g 140 140
Degree of protection IP 40 IP 40
Sensor protection Short circuit protection and reverse polarity protection Short circuit protection and reverse polarity protection

 

DIFFERENTIAL VACUUM SWITCH

Type -100 … +50 Torr -100 … +50 mbar
Differential range (1)
Setpoint range –99 … +46 –99 … +46
Admissible pressure bar (absolute) 2 2
Setpoint relay
Relay output Relay output n.o., n.c., potential free n.o., n.c., potential free
Contact rating 30 30
Setpoint accuracy Torr ±0.75 ±0.75
Temperature effect on zero and span percent FS/°C ≤±0.02 ≤±0.02
Response time ms ≤45 ≤45
Hysteresis Torr 3 3
Electrical connection D-Sub, 9-pin D-Sub, 9-pin
Supply voltage V (dc) 14 … 30 14 … 30
Power consumption W <0.5 <0.5
Admissible temperature
Operation (ambient) °C 0 … 70 0 … 70
Storage °C –40 … 80 –40 … 80
Materials exposed to vacuum stainless steel stainless steel
Mounting orientation any any
Internal volume
DN 16 ISO-KF cm³ (in.³) 2.81 (0.17) 2.81 (0.17)
4 VCR cm³ (in.³) 0.93 (0.057) 0.93 (0.057)
Weight g 140 140
Degree of protection IP 40 IP 40
Sensor protection Short circuit protection and reverse polarity protection Short circuit protection and reverse polarity protection

(1): References to ambient pressure.

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