Replace The Silver Seal - Thermo Scientific TRACE GC Ultra Maintenance And Troubleshooting Manual

Chapter 12
Maintaining an Electron Capture Detector
OPERATING SEQUENCE

Replace the Silver Seal

Materials needed
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•
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WARNING! Any maintenance or repair operations involving the radioactive source must be
performed ONLY by qualified personnel duly authorized to handle radioactive
material. Please contact your local Thermo Fisher Scientific Technical Service office.
WARNING! This operation must be carried out at low temperature to avoid burns. Therefore,
before beginning the sequence, the detector must be cooled to room temperature.
PRECAUTIONS
1. Press LEFT DETECTOR or RIGHT DETECTOR,
depending on the location of the ECD, to access
the ECD control table. In the following
example, an ECD installed on the right channel
is considered.
2. Scroll subsequently to
and press OFF.
temp
3. Scroll to
Mkup(N2)
232
Silver seal (P/N 290 150 58)
ECD fixing tool (P/N 205 021 50)
Tweezers
and
Base temp ECD
and press OFF.
RIGHT DETECTOR (ECD)
Base temp
ECD temp
Ref current nA
Freq kHz
Pulse amp V
Pulse width us
Mkup (N2)
Maintenance and Troubleshooting Manual
Replace the Silver Seal
.
250 Off <
250 Off
1.0
(2.15)
25
1.0
40 Off