Teledyne T200, Руководство по эксплуатации, Страница: 186 / 425

Calibration Procedures Teledyne API
– T200 NO/NO
2
/NO
X
Analyzer Operation Manual
184
9.2.3. PERFORMING A BASIC MANUAL CALIBRATION
The following section describes the basic method for manually calibrating the T200.
If the analyzer‟s reporting range is set for the
AUTO range mode, a step will appear for
selecting which range is to be calibrated ( LOW or HIGH ). Each of these two ranges
MUST be calibrated separately.
9.2.3.1. SETTING THE EXPECTED SPAN GAS CONCENTRATION
Note The expected concentrations for both NOx 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 (e.g. NO often contains 1-3% NO
2
and vice versa).
The NO and NO
x
span gas concentrations should be 80% of range of concentration
values likely to be encountered in your application. The default factory reporting range
setting is 500 ppb and the default span gas concentration is 40.0 ppb.
To set the span gas concentration, press:
SAMPLE RANGE TO CAL:LOW
LOW HIGH ENTR EXIT
SAMPLE
RANGE=500.0 PPB NOX= XXXX
<TST
TST>
CAL SETUP
M-P CAL
RANGE=500.0 PPB NOX= XXXX
<TST TST> ZERO SPAN
CONC
EXIT
M-P CAL CONCENTRATION MENU
NOX NO
CONV EXIT
M-P CAL NOX SPAN CONC:80.0 Conc
0 4 0 0 .0 ENTR EXIT
The NO
X
& NO span concentration
values automatically default to
400.0 PPB.
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.
Only appears if the
AUTO
range mode is selected.
Use these buttons to select
the appropriate range.
Repeat entire procedure for
each range.
06858E DCN7057