Micro-pirani Vacuum Sensors - PVC1000 Series
• 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
- Model Number: PVC1000 Series
- Data Sheet:
- Quantity:
- - +
Product Specification
PVC1000 Series Micro-pirani Vacuum Sensors Description：
Posifa’s 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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