User guide

Chromatographic Checkout 4
Advanced User Guide 95
If the baseline output is zero, verify the electrometer is on
and the flame is lit.
9 If using a data system, prepare the data system to perform
one run using the loaded checkout method. Make sure that
the data system will output a chromatogram.
10 Start the run.
If performing an injection using an autosampler, start the
run using the data system or press [Start] on the GC.
If performing a manual injection (with or without a data
system):
a Press [Prep Run] to prepare the inlet for splitless injection.
b When the GC becomes ready, inject 1 µL of the checkout
sample and press [Start] on the GC.
11 The following chromatogram shows typical results for a new
detector with new consumable parts installed.
Methylparathion
Isooctane
Table 14 Evaluating checkout runs
FPD P filter Typical range after 24
hours
Limits at installation
MDL (pg/sec) 0.06 to 0.08 ≤0.10
Peak area 19000 to 32000 ≥19000
Signal height 5000 to 11000 —