06-May -14
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Quick Reference Guide
7890 GC Heated Zones Quick Reference Guide
7890 Thermal Aux Zones
There are
three (3)
“Thermal Aux Zones”
that can be configured to any of the
six (6) physical
Heater/Sensor Connectors
on the GC – per the assignments in the table below:
Heater/Sensor Connector Assignments for the Thermal Aux Zones:
Logical Aux Heater
Thermal Aux1
Thermal Aux 2
Thermal Aux 3
Physical Heater
Connection
Aux 1
Back Inlet
Aux 2
Back Detector
Aux 1, Aux 2
Front Inlet, Front Detector
The physical
Aux 1
and
Aux 2
Heater/Sensor connectors are mounted on the valve bracket and
are the most likely zones that you would assign to the
Thermal Aux Zones
.
The
Rules
for using the
Inlet or Detector Heater
Sensor connections are as follows:
If you want to use an
Inlet connection as a Thermal Aux Zone
, you must
not have
a
standard Agilent Inlet EPC module installed in the same position.
If you want to use a
Detector Connection
, you cannot have an associated EPC module or
Detector Logic board installed
7890 heaters must be between
10 and 180 watts
. There is no
configurable
total
power limit.
If total power/F or B channel > 220 watts, power priority to zones is 1-Inlet, 2-Aux, 3-Det.
Thermal Aux Zone Configuration Menus
NOTES:
- Before turning on the GC, connect your heater/sensor to the zone to be used.
- Before making config. changes set the keypad
Hard Configuration Lock
to “
OFF
”
Access
Menu
Description
>
This shows 4 of the 26 configurable items
Direct Link to the
Thermal Aux
Menus
NOTE:
- You can configure a
Valve
Box
with Aux 1 or Aux 2 physical
heaters
– or both!!!
As an example:
Select
“Thermal Aux 2”
Thermal Aux 2
is
Unconfigured
: It
can be configured as
A2
(physical heater/sensor Aux 2)
or
B-DET
(Back Det Heater/Sensor)
The actual
heater power
was
determined during the
”Power On Self Test”
Select
You can install
A2
or
B-DET
for a
list of all configuration possibilities...
OR
Directly as a
MSD Transfer
Line Heater
