INFICON PCG55x ATM to Medium Vacuum Gauge - Manual (Page 5)

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Intended Use
The Pirani Capacitance Diaphragm Gauge PCG55x has been
designed for vacuum measurement of gases in the pressure
range of 5×10
-5
… 1500 mbar.
It must not be used for measuring flammable or combustible
gases which react in air.
The gauge is intended for operation in connection with an
INFICON Vacuum Gauge Controller VCG401, 402, 403 or with
another suitable controller.
Functional Principle
The PCG gauge is a combination gauge consisting of a Pirani
sensor and a diaphragm capacitive sensor. Both sensors are
constantly active.
At low pressures, only the signal of the Pirani sensor is used for
pressure measurement; at high pressures, only the signal of the
diaphragm capacitive sensor. To determine the output signal in
the intermediate range, both signals are used proportionally to
the pressure.
Trademark
VCR
®
Swagelok Marketing Co.
Patents
EP 0689669 B1, 0689670 B1, 0658755 B1
US Patente 5608168, 4031997, 5583297
Scope of Delivery
1× gauge
1× pin for adjusting settings via buttons
1× Operating Manual English
1× Operating Manual German