Sample Gas / Calibration Gas / Reference Gas Connection; Column Supply Pressure And Column Temperature; Further Process - RMG PGC 9300 Operating Manual

4.2.2

Sample gas / calibration gas / reference gas connection

Connection of these gases must take place in the same manner as connection of
the carrier gas. In the process, the input pressure should line in the range between
1.1 – 2.5 bar. The specification of a specific inlet pressure must take place before
the basic calibration of the device. If this pressure has been defined, changes
are no longer permitted.
Note
The pressure must be identical for all three inputs. The permissible toler-
ance is ±10%.
The pressure monitoring takes place with an integrated pressure transducer in a
manner that is similar to that of the carrier gas. The measurements are also availa-
ble at the bottom of the "Status" screen of the analytical computer. The measured
input pressure at the
GC 9300 can be read for pressure equalization of the analysis gas input. If the
pressure compensation takes place for measuring gas, the adjustment is also suit-
able for calibration gas and reference gas.
4.3 Column supply pressure and column temper-
ature
The column temperatures and carrier gas pressure at the injectors can be defined
with the factory calibration of the device.
Continuous monitoring of the values is carried out by the analytical computer dur-
ing operation. When the permissible limit values are exceeded, an error message
is issued and no further analysis takes place. The corresponding limit values can
be seen on the analytical computer in the "Details" screen under measuring
unit/analysis pressure/max. deviation and/or measuring element/carrier gas I/max.
deviation (GC 9300 manual).

4.4 Further process

The "Normal Calib." operating mode must be selected after compensation of the
input pressures according to the description above. The chromatograph will now
conduct a calibration cycle.
4 Connection and commissioning
Manual PGC 9300 EN07 June, 18th 2018
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