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Micro-Pirani Vacuum Sensors

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Product Name:Micro-Pirani Vacuum Sensors

Micro-Pirani Vacuum Sensors

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Product Description:

PVC1000 Series Micro-pirani Vacuum Sensors Description
    Posifas PVC1000 series of MEMS MicroPirani Vacuum Sensors offer a breakthrough vacuum measurement solution that enhances miniaturization while delivering ultra-low power consumption, long lifetime, minimal field maintenance, and low cost.
    Based on the principal that the thermal conductivity of gases is proportional to pressure in the low vacuum range, the Posifa sensors measure minute changes in resistance to a heated element resulting from heat transfer to the surrounding gas.

PVC1000 Series Micro-pirani Vacuum Sensors Features

  • Ultra low power consumption < 5 mW
  • Fast Response Time < 5 mSec
  • Suitable for gas volume as low as 0.1 cm3
  • Long Term Stability
  • Can be cleaned by immersing in solvent, prolonging useful life


PVC1000 Series Micro-pirani Vacuum Sensors Applications
  • Leak detection in any closed system maintained under primary vacuum
  • Vacuum packing machines
  • Portable digital vacuum gauges


PVC1000 Series Micro-pirani Vacuum Sensors Absolute Maximum Ratings
  • Operating Temperature: -25 to 85 °C
  • Storage Temperature: -40 to 90 °C
  • Shock: 100 g peak (5 drops, 3 axis)


PVC1000 Series Micro-pirani Vacuum Sensors Electrical Characteristics
Test Conditions: Heating Current = 7mA, Ta=25°C
SPECIFICATIONS MIN TYP MAX UNIT CONDITIONS
Range 10-3   30 Torr  
Resolution1   0.25   Torr 5-30 Torr
  0.05   Torr 2 to 5 Torr
  0.005   Torr 10-3 to 2 Torr
Accuracy1   ±10   % reading > 5 Torr
  ±5   % reading < 5 Torr
Measurement Resistor
(Class 1)
130 160 180 Ohm At 25°C
Reference Resistor
(Class 1)
250 320 370 Ohm At 25°C
Measurement Resistor
(Class 2)
100 120 140 Ohm At 25°C
Reference Resistor
(Class 2)
190 320 290 Ohm At 25°C
Resistor TCR   0.0025   /°K  
Humidity 0   100 % RH, Non-condensing
Heating Current3   6.5 7.5 mA  
Operating Temperature
Range
-25   85 °C  
Storage Temperature -40   90 °C  
Power Consumption     5 mW 10-3 to 30 Torr
Shock Resistance     1000 g  
Overpressure     27.5 Bar  
Measurable Gas Volumes   0.1   cm³  
Response Time   5   mSec  
1 For reference only. Actual resolution/accuracy depends on the associated circuit.

2 For class 1, 6.5mA is recommended. For class 2, 7.3mA


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Supplier Details

Shenzhen Isweek Ltd

Market Type: After Market 
Business Type: Distributor/Wholesaler
Main Product: Gas Sensor, Pressure Sensor, Humidity Sensor... etc

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