Teledyne 200AH 用户手册
Teledyne API Model 200AH NO
X
Analyzer Instruction Manual, 06492, Rev. G2
7-6
7.2.
Manual O
2
Zero/Span Check or Cal With Zero/Span
Gas in the Sample Port
The calibration of the O
2
Sensor can be checked or adjusted using gas coming in the sample port.
This method is often used when the calibration gas is supplied from the stack sample probe or
external tank and valve system.
external tank and valve system.
Table 7-5 details the zero calibration procedure with zero gas coming in through the sample port.
Table 7-5: Manual O
2
Zero Calibration Procedure - Zero Gas Thru Sample Port
Step Number
Action
Comment
1. Check
“Before
Calibration”
2. Press
CAL-O2-ENTR
The M200AH enters the calibrate mode for O
2
. The zero gas
must come in through the sample port.
4.
Wait 10 min
Wait for reading to stabilize at zero value.
5.
Press ZERO
If you change your mind after pressing ZERO, you can still
press EXIT here without zeroing the instrument.
press EXIT here without zeroing the instrument.
6.
Press ENTR
Pressing ENTR actually changes the calculation equations.
7.
Press EXIT
M200AH returns to sampling. Immediately after calibration,
data is not added to the DAS averages.
data is not added to the DAS averages.
Table 7-6 details the span calibration procedure with span gas coming in through the sample
port.
port.