Quick Start Guide
SERVO
PRO CHROMA/NANOCHROME/ULTRA Gas Analyser
21
04400003A_0
5.
After one cycle in manual injection has completed, press the
Calculate
Threshold
button. The RMS value will be shown in the
THRSH
column
of the grid.
6.
When the
Noise Threshold Calibration
is completed,
YES
is displayed in
the
TRS done
column of the grid.
7.
Disable the
Noise Threshold Calibration
with the
Disable (F2)
button
(one button performs dual functions Enable or Disable, depending on the
active mode).
1.9.2 Span Calibration
It is important to carry out the Span calibration procedure in Range 2 ONLY.
The
dilution factor
represents the internal dilution ratio and is set to 1 unless the
analyser is fitted with an internal dilution system.
If the analyser is fitted with an internal dilution system:
Sample inlet 1 is used for the process gas, and sample inlet 2 is used for the
span gas.
Pressing the
Click for Span
button will select analyser sample inlet 2.
Diluted Value:
equals the
Calib Gas Value
column divided by the
dilution
factor
(see
Each chassis in a multiple chassis analyser may be fitted with an internal
dilution system and the associated dilution factor can differ depending on the
impurity to be analysed. This information is provided with each analyser in the
Test Results Sheet (TRS).
Refer to section “
Internal dilution system setup
”
for more information.
The
dilution factor
has to be
checked after installation and each time
the inlet carrier pressure or span gas pressure is changed.
It is important to carry out the Span calibration procedure in Range 2
ONLY
The calibration procedure is described below.
1.
Click on
Run-Real Time Chromatogram
, then select
the
Automatic
Injection
option.
Click on the
Calibration-Calibration
menu (see Figure 10).
Set the calibration gas values for each individual peak:
