Calibration | 5-3
Manual Zero Gas Calibration
A Manual Zero forces the analyzer to purge the sample system with Zero
gas which removes any residual contaminants in the sample system. See
also “Setting Gas Calibration Parameters” in Chapter 4.
To manually Zero the analyzer:
1. From the Gas Calibration dialog box, change the Flow Control setting
to ‘2’ (zero). Click Apply (next to Flow Control) to set the analyzer
into zero Flow Control mode. Click the ManZero button to initiate
a Manual Zero then click OK. Do not save the changes to EEPROM.
Allow the Zero gas to flow for 2–3 minutes.
You can verify that the Zero calibration is in progress by viewing the
Calibration/Solenoid Status field in the Status tab. It should display
“Manual-zero”.
2. After the Zero is complete, change the Flow Control setting back to
‘0’ (auto). Click OK then Apply (next to Flow Control). Click OK then
save this parameter change to EEPROM by clicking the Save CFG to
EEPROM button on the Setup tab.
Setup (tab)Gas
Calibration
Figure 5-1.
Gas Calibration dialog
box (Model 932S).
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