SEKURE SX-3100LCD Manual del operador Pagina 365

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GAS ANALYZER 353
Single-Point Calibration
Press 1 on the <CALIBRATION> menu shown previously.
Entering new gas values (from Cal Gas bottle)
The screen at the left is displayed if 1 is selected. Use the u and d keys to move the
cursor to a new gas value. Use 0 to 9 to enter a new gas value. For example, to enter a
CO2 value of 11.0%, use the u and d keys to move to CO2 and enter 110 using the
number keys; 11.0% should be displayed where the cursor is.
Pressing the r key erases a digit. For example, if you wanted to enter 9.00% for CO, but
accidentally entered 90.00%, pressing the r would remove the last digit and 9.00% would
be displayed.
Pressing the l key changes the value at the cursor location to a 0.
IMPORTANT: If the calibration gas does
not contain NOx, set the NOx gas
concentration to 0 ppm. If the
concentration is not set to 0 ppm, the unit
calibrates the NOx sensor incorrectly. As a
result, the NOx readings will be extremely
erratic. This can be corrected by
recalibrating the unit with NOx.
When you have entered the correct values,
press E.
If the Maintenance Required status
message “Single Pt Cal Warn” appears
after completion of the calibration, check
your gas bottle and repeat the calibration
procedure. If the warning message persists,
contact Vetronix at (800) 321-4889. Ask
for Toyota Customer Assistance.
Calibration Verification
To verify the correct operation of the Gas Analyzer after a calibration, return to <DATA
LIST> mode and press A# to shut off the pumps, then feed calibration gas into the
calibration port of the analyzer. The display should show the gas bottle readings for CO,
CO2, and NOx. To get the equivalent HC readings as shown on the screen, divide the
bottle propane concentration by 2 (i.e., 1200 ppm on the bottle will read about 600 ppm on
the Gas Analyzer).
CO2
CO
Propane
NO
X
12.0%
4.00%
1200 ppm
2000 ppm
FIGURE 15. Entering New Gas Values (from Cal Gas Bottle)
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