Advanced instruments inc – Analytical Industries GPR-1600 MS Series PPB Oxygen Analyzer User Manual

Page 35

Advanced Instruments Inc.

CALIBRATION
SPAN CALIBRATE
ZERO CALIBRATE
DEFAULT SPAN

DEFAULT ZERO

OUTPUT SPAN
OUTPUT ZERO

7. Advance the reverse shade cursor using the ARROW keys to highlight DEFAULT ZERO.
8. Press the ENTER key to select the highlighted menu option UNLESS:

¾ If a ZERO CALIBRATION adjustment is made during initial installation, it is normally not required again until the

sample system connections are modified or a new oxygen sensor is installed. Therefore the DEFAULT ZERO
function is recommended only when performing a ZERO CALIBRATION and during troubleshooting and should not

be repeated before routine subsequent SPAN CALIBRATION.

¾ If a ZERO CALIBRATION adjustment has NOT been made as described above, perform the DEFAULT ZERO and

DEFAULT SPAN functions when troubleshooting an analyzer and before SPAN CALIBRATION.

9. The following display (below left) appears and after 3 seconds the system returns to the SAMPLING mode:

FACTORY

DEFAULTS

SET

3.3

PPM

AUTO SAMPLING

10 PPM RANGE

24.5 C
LO1 2 PPM 10 PPM HI2

10. Repeat steps 1 through 4 above.

CALIBRATION
SPAN CALIBRATE

ZERO CALIBRATE

DEFAULT SPAN

DEFAULT ZERO
OUTPUT SPAN
OUTPUT ZERO

11. Advance the reverse shade cursor using the ARROW keys to highlight DEFAULT SPAN.
12. Press the ENTER key to select the highlighted menu option.
13. The following display (below left) appears and after 3 seconds the system returns to the SAMPLING mode: