3.39
Enter the password and press:
SET VALVE SPAN
8
ENTER
Will open the span gas valve and ensure the other two valves are closed.
The display will show:
0.01 88
88 is the parameter number for the sample gas valve. 0.01 indicates that it is open. If it was
closed 0.88 would be shown.
The status of the valves can be found by DISPLAYing the appropriate parameter number (87 for
zero gas, 88 for span gas and 89 for sample gas).
If an attempt is made during the auto-calibration sequence to operate the valves then the display
will show 0.06 and the valve will not operate. Auto-calibration will not be affected.
TABLE 3.6 VALVE ERROR MESSAGES
DISPLAY DESCRIPTION
0.01 87
0.06 87
0.87 87
0.01 88
0.06 88
0.88 88
0.01 89
0.06 89
0.89 89
Zero gas valve open.
Auto-calibration in progress.
Zero gas valve closed.
Span gas valve open.
Autocalibration in progress.
Span gas valve closed.
Sample gas valve open.
Autocalibration in progress.
Sample gas valve closed.
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