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Introduction
Detector Gases Requirements
This paragraph details the detector gases requirements for NPD.
NPD Detector Gases
Usually NPD requires air and hydrogen as fuel gases and nitrogen or helium as
make-up gas.
In case of NPD Tandem (stacked) configuration, the make-up gas for the NPD
detector is supplied from the ECD make-up gas line. Consequently, any make-up
gas connection is required at the DGFC for NPD. The make-up gas from the ECD
detector can be only nitrogen.
The connections of the detector gases must be performed as described in the
following table:
For further details, refer to Chapters 16 and 19 of the TRACE GC Ultra Operating
Manual.
Transformer for NPD
To supply NPD, the dedicated transformer provided must be installed on the
Power Control Module of the GC.
WARNING! This operation must be carried out by authorized Thermo Fisher Scientific technical
personnel.
Installation Guide
Installed
Connect Hydrogen
Module
AD
Gas 2
Connect Air
to
NPD Tandem Detector
Connect Make-up
to
Gas 1
NOT USED
Upgrade Kit
Gas to
7
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