Teledyne API Model 100AH SO2 Analyzer Instruction Manual, 02417, Rev. D
Table 8-7: Z/S Valves Mode with Remote Contact Closure
Ext Zero CC Ext Low Span CC Ext High Span CC Operation
Contact Open Contact Open Contact Open State when in SAMPLE
mode, normal sample
monitoring.
Contact Open Contact Closed Contact Open Low Span check or
calibrate*
Contact Closed Contact Open Contact Open Zero check or calibrate*
Contact open Contact Open Contact Closed High Span check or
calibrate*
*Calibrate only if Dynamic Calibration is enabled (see Table 10-5).
8.6 Special Calibration Requirements for Dual Range or Auto Range
If Dual Range or Auto Range is selected, then it should be calibrated for both Low Range
(Range1) and High Range (Range2) separately. Pressing CAL key will prompt Low Range and
High Range keys for Range1 (Low Range) or Range2 (Hi Range) calibration selection. Select
desired range number and press ENTR to proceed to the calibration. Once desired range is
selected, the display will show Test Measurements and SO2 concentration for the corresponding
range. You must enter expected SO2 gas concentrations separately per Table 8-3 procedure for
each range.
For zero calibration allow zero gas through the sample port and proceed to manual zero
calibration procedure per Table 8-2, step 2 through step 4. After zero calibration is set, switch to
span SO2 gas to continue for span calibration procedure per Table 8-4 step 2 through step 4.
Press EXIT to exit from the current Range.
Repeat the above procedure for the other Range by pressing CAL key and selecting the Range as
described above. Enter once again corresponding SO2 gas concentration for selected Range and
continue zero/span calibration for the other Range selected.
M100AH with Zero/Span Valves option can be used to calibrate zero/span of the desired Range.
Pressing CALZ (for zero) or CALS (for span) keys will lead to show Low Range and High
Range the same way as CAL key except CALZ is dedicated for zero air calibration while CALS
is dedicated for span gas calibration.
8-7