SERVO
PRO NANOCHROME Gas
Analyser
112
04416001A / Revision 7
state. All “Detectors A” are specific to nitrogen. A reading above 0.10 V for
helium carrier and 0.2 V for argon carrier with 100% plasma power indicates a
leak in the system.
18.
Note:
If internal dilution system option is installed, verify the dilution system
dilution ratio. Follow procedure described in section 6.3.4.
19.
To validate the chromatography inject the calibration gas. Make sure that all
peaks are centred in their peak window. If not, adjust the peak windows. Refer to
section 4.6.4 .
20.
After chromatography validation, calibrate the analyser (see Section 4.7). Then,
run the analyser continuously on calibration gas for 12 injections. Verify that the
last 4 results are within repeatability specification. Compare with results from the
analyser Test Results Sheet (TRS).
21.
Inject the process gas continuously and monitor the results. Make sure peak
baselines are correct and that readings are stable.
7.4 Shut-down procedure
1.
Press quit button in software and enter analyser password. Wait for screen to turn
black and turn-off power.
CAUTION
It is important to allow the analyser to power itself down. Turning off the
power to the analyser after the screen turns black but before it completes
the shutdown procedure may result in loss of data.
2.
Wait for one hour to let column cool down with all gases connected.
3.
Disconnect all gases.
WARNING
Do not install caps on vent if carrier or sample gas inlets are still
connected. This will damage the detector.
4.
Install caps on all inlets and outlets.
