Calibration Procedures
Teledyne API - Model T200H/T200M Operation Manual
194
STEP TWO:
Set Expected NO and NO
X
Span Gas Concentrations.
Set the expected NO and NOx span gas concentration. These should be 80% of range of
concentration values likely to be encountered in this application. The default factory
setting is 100 ppm. If one of the configurable analog outputs is to be set to transmit
concentration values, use 80% of the reporting range set for that output.
SAMPLE
A1:NXCNC1=100PPM
NOX=XXX.X
< TST TST > CAL CALZ
CALS
SETUP
SAMPLE
GAS TO CAL:NOX
NOX
O2
ENTR
EXIT
SPAN CAL M A1:NXCNC1 =100PPM NOX=X.XXX
<TST TST> ZERO SPAN
CONC
EXIT
SAMPLE
RANGE TO CAL:LOW
LOW
HIGH
ENTR
EXIT
SPAN CAL M CONCENTRATION MENU
NOX
NO
CONV
EXIT
SPAN CAL M
NOX SPAN CONC:80.0 Conc
0
0
8
0
.0
ENTR EXIT
The NO
X
& NO span concentration
values automatically default to
80.0 Conc
.
If this is not the the concentration of
the span gas being used, toggle
these buttons to set the correct
concentration of the NO
X
and NO
calibration gases.
EXIT
ignores the new
setting and returns to
the previous display.
ENTR
accepts the new
setting and returns to
the
CONCENTRATION
MENU.
If using NO span gas
in addition to NO
X
repeat last step.
Note
The expected concentrations for both NO
X
and NO are usually set to the same
value unless the conversion efficiency is not equal to 1.000 or not entered
properly in the conversion efficiency setting. When setting expected
concentration values, consider impurities in your span gas source (NO often
contains 1-3% NO
2
and vice versa).
07270D DCN7141