2 gas type dependence, 3 switching functions sp1, sp2 – INFICON PCG55x ATM to Medium Vacuum Gauge User Manual
Page 40
Advertising
40
tina56e1-d (2014-01)
EEPROM error
Sensor error
4.2
Gas Type Dependence
Pressure range
Measurement
principle
Gas type dependence
10 … 1500 mbar
diaphragm
capacitive sensor
independent of gas
type, no correction
required
1 … 10 mbar
diaphragm
capacitive sensor
and Pirani sensor
crossover range
5×10
-5
… 1 mbar
Pirani sensor
proportional to
pressure
6
)
4.3
Switching Functions SP1, SP2
The two switching functions can be set to any pressure within
the measurement range of the gauge. A solid state relay is
provided for each switching function.
6)
The pressure reading applies to dry air, O
2
, CO and N
2
. For other
gases, it has to be converted (calibration factors (
→ 24).
Advertising