Section 6
Page 99
UVTOCOperation.fm Calibration Menu
relative % degradation of the performance can be determined and
maintenance or fault events flagged to the operator. See section 8.7 on
page 145.
6.10.2 Calibration Screen
Press ENTER while in the Calibration screen to display the calibration data
set currently in use. When one of the three multi-point calibrations is selected,
the screen will display the type of calibration and scroll through each of the
calibration points being used.
The two gas ppm values displayed the current readings for zero (19 ppm) and
span (950 ppm). Press ENTER again to select the calibration options.
6.10.3 Manual Zero Calibration
Press ENTER while in the Calibration menu. The first submenu in the
Calibration menu is the Manual zero menu.
1. Press ENTER to select Manual Zero and proceed to a prompt screen.
2. Press ENTER. The screen shows the apparent TOC using the prior
calibration, the pre zero countdown timer from the pre zero period, and
the prior zero TOC mg/L.
3. Press UP to display the equivalent screen displaying ppm CO
2
instead of
mg/L TOC.
Calibration
0 mg/l 1000 mg/l
19 ppm 950 ppm
Manual Zero
Apply DI water
to zero port
20 mg/l 285s
Last 0.0 mg/l
20 ppm STAB
Last 17 ppm
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