INFICON PCG55x ATM to Medium Vacuum Gauge - Manual (Page 40)

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).