Configuration Overview - Agilent Technologies 7820A Service Manual

Configuration overview

158
Agilent 7820 GC Service
There are 2 kinds of configuration information: hard and soft.

Hard configuration includes what hardware options are
installed on the GC: the type of inlets and detectors, where
they are located, and what auxiliary heaters are connected.

Soft configuration includes application specific information:
carrier gas type, make up gas type, inlet control modes,
column dimensions.
The GC modules that make up an instrument (such as EPC
modules, detector boards, and heaters) are initially configured
during manufacturing. This information is stored in the signal
board memory.

An inlet is configured as an EPC module and a heater.

A detector is configured as an EPC module, a detector signal
board, and a heater.

A pneumatic control module (PCM) is configured as an EPC
module and can be associated with a heater.

A valve box is configured with a heater.

A nickel catalyst is configured using an AUX thermal zone

A transfer line, for example for an MSD, is configured as an
AUX thermal zone
There are custom configuration options available. You can
configure the GC modules by pressing [Config] and then
pressing the key for the GC module, for example, [Config] [Front
Det]. Under the configuration menu, you will find these features:

Install or remove the module.

If you wish to ignore a ready or not ready status.

The type of gas that the EPC module is controlling.

The baseline output to use for reigniting the flame.