DETECTORS edition II
The chromatographs with the supplement
editionII
have digital detector amplifiers. These amplifiers
are of double Eurocard size and are inserted next
to interface module 3 in the electronics frame. The
amplifiers have no control elements, all settings are
made using the control unit.
Software version V8.0 or later is required in the
chromatograph and in the control unit in order to
operate these chromatographs. The displays Sum-
mary and Signals have been modified and adapted
to the new input functions.
The chromatographs of the old generation are
operated exactly as previously. Only the display
Signals has been adapted to the new appearance.
This is shown by the two Figs. on the right.
Igniting FID/FPD, switching-on TCD
Please refer to the instructions in the Register Com-
missioning: Switching on chromatograph with
FID/FPD or TCD.
IMPORTANT:
Only ignite the FID or FPD when the detector
temperature is higher than 120 °C, or the Ex-
FID when the oven temperature is stable. This
prevents the condensation of water in the de-
tector.
Only switch on the TCD when carrier gas has
flown through the sample and reference lines
for at least 5 minutes.
Select the function Signals in the selection display. En-
sure that you select the correct channel! Position the
cursor to the column of the detector you wish to switch
on or ignite. Then press the key
.
FID, FPD
The chromatograph outputs five ignition sparks to the detector.
Observe the detector signal: it must increase if the detector has
ignited.
TCD
The chromatograph switches the bridge current on. Observe
the detector signal: it must increase when the TCD is switched
on. Adjust the measuring bridge if necessary.
F7: Ignite/Switch on
Detectors
4
5DETEKTO.CHP, Stand Dezember 22, 1999
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