Teledyne 9110AH Instruction Manual page 170

TELEDYNE Model 9110AH NO
To adjust the SAMPLE PRESSURE
1. Go to DIAG mode by pressing SETUP-MORE-DIAG, then select SIGNAL I/O, and press
ENTR. Select SAMPLE_PRESS by using NEXT-PREV keys.
2. Adjust R1 to read 4100 mV. This is the coarse adjustment.
3. Press EXIT to return to the SAMPLE mode. Select SAMP - TEST function. Use a calibrated
absolute pressure meter to make small adjustments to R1 until the correct absolute pressure
is displayed. 29.92 in-Hg-A is the target value at sea level. The rate of decrease is about 1"-
Hg per 1000 ft of altitude.
To adjust the REACTION CELL PRESSURE
1. Go to DIAG mode by pressing SETUP-MORE-DIAG, then select SIGNAL I/O, and press
ENTR. Select RCELL_PRESS by using the NEXT-PREV keys.
2. Disconnect the vacuum pump at the Sample Exhaust port on the instrument rear panel.
3. Press EXIT to return to the SAMPLE mode. Select RCEL - TEST function. Use a calibrated
absolute pressure meter to make small adjustments to R1 until the correct absolute pressure
is displayed. 29.92 in-Hg-A is the target value at sea level. The rate of decrease is about 1"-
Hg per 1000 ft of altitude.
4. Re-connect the sample pump. The RCELL reading should now display the reaction cell
absolute pressure of approximately 5 in-Hg-A.
To adjust the SAMPLE FLOW
1. In SAMPLE mode, scroll the TEST functions to SAMP FLW. Observe the reading. Then
subtract the observed reading from the desired reading.
2. Go to the VARS menu by SETUP-MORE-VARS, then pressing ENTR. Scroll to
SFLOW_SET and press EDIT. The first value displayed is the SFLOW_SET:VALUE
reading, ADD the value from step 1 to the reading shown and key in the new reading, then
press ENTR. Check the low and high warning limits, which are displayed as the next 2
values to make sure the new value does not exceed the warning limits. Press exit to return to
SAMPLE mode.
3. Observe the SAMP FLW value. If necessary repeat step 2 to adjust the reading again to
match the desired flow rate.
Analyzer Operator Manual, 01620, Rev. F
X
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