Table 7-15: Automaticc - Teledyne 200A Instruction Manual

Teledyne API Model 200A NO
7.8.6.1 Automatic Moly Converter Efficiency Compensation
The M200A can automatically compensate the NO
converter efficiency. There are 2 ways to enter the converter efficiency into the instrument. The
first is to enter the efficiency as a decimal fraction using the CAL-CONC-MOLY-SET menu.
The second method is to have the M200A compute the efficiency using the CAL-MOLY-CAL
menu. The procedure is given in Table 7-15 below. To disable the compensation, press CAL-
CONC-MOLY-SET and enter 1.0000 as the efficiency.
Table 7-15: Automatic Calculation of Converter Efficiency
Step Number
1.
2.
3.
4.
5.
6.
Analyzer Instruction Manual, 02246, Rev. F1
X
Action Comment
Press CAL-CONC- From the SAMPLE mode the M200A enters the Converter
CONV-NO2 Efficiency menu and requests expected NO
concentration.
Key in expected Enter the expected NO
NO concentration generate a NO
2
Then ENTR
Press CAL-CONC- Reset the previous converter efficiency value to 1.00.
MOLY-SET
Set CE to 1.0000
Press CAL-CONC- Allow the NO
CONV-CAL, wait time for the ENTR button to appear because the only valid
10 min. Then press values for CE are .96 to 1.02. The ENTR button will not come
ENTR on unless the value is in this range.
When ENTR is pressed, the M200A will compute the ratio of
observed NO
store the ratio.
Press SET After the instrument calculates the CE it is good practice to
check the ratio.
Press EXIT The M200A will now compensate all readings for this converter
efficiency value.
and NO readings for the molybdenum
x 2
cal gas concentration. (We suggest you
2
concentration of 80% of current range.)
2
concentration reading to stabilize. It may take
2
concentration to expected NO
2
7-26
cal gas
2
concentration and
2