Analytical Industries GPR-1800 AIS ATEX Trace PPM Oxygen Analyzer - Manual (Page 40)

Advanced Instruments Inc.
40
Output Zero
Procedure:
1. Access the MAIN MENU by pressing the MENU key.
2. Advance the reverse shade cursor using the ARROW keys to highlight CALIBRATION.
3. Press the ENTER key to select the highlighted menu option.
4. The following displays appear:
MAIN MENU
AUTO SAMPLE
MANUAL SAMPLE
CALIBRATION
CONFIG ALARMS
BYPASS ALARMS
>>>
CALIBRATION
SPAN CALIBRATE
ZERO CALIBRATE
DEFAULT SPAN
DEFAULT ZERO
OUTPUT SPAN
OUTPUT ZERO
5. Advance the reverse shade cursor using the ARROW keys to highlight OUTPUT ZERO.
6. Press the ENTER key to select the highlighted menu option.
7. The following display appears:
100.0
OUTPUT ZERO OFFSET
PRESS UP OR DOWN
TO CHANGE VALUE
ENTER TO SAVE
MENU TO RETURN
8. Enter the OUTPUT ZERO adjustment value as follows . . .
9. Selecting digits of the adjustment value to change - Press the ENTER key to advance the underline cursor right or press
the MENU key to advance the underline cursor left to reach to the desired digit.
10. Changing the digits of the adjustment value . . . Press the UP/DOWN ARROW keys to change a digit of the adjustment
value.
11. Repeat steps 9 and 10 until the complete zero value has been entered and the following display appears.
099.0
OUTPUT ZERO OFFSET
PRESS UP OR DOWN
TO CHANGE VALUE
ENTER TO SAVE
MENU TO RETURN
12. Save the adjustment value by pressing the ENTER key or abort by pressing the MENU key.
13. The system returns to the SAMPLING mode.
14. Note: After the initial adjustment is made, check the actual signal output at the PLC and if necessary calculate a further
fine tuning adjustment value as illustrated above.
15. Enter subsequent fine tuning adjustments as described above.
Output Span
Procedure:
1. Access the MAIN MENU by pressing the MENU key.
2. Advance the reverse shade cursor using the ARROW keys to highlight CALIBRATION.
3. Press the ENTER key to select the highlighted menu option.
4. The following displays appear: