Teledyne Model Vehicle T400 ユーザーズマニュアル

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T400 Ozone Analyzer Operator’s Manual 
T400 Calibration Procedures 
 
193 
9.3.3. MANUAL CALIBRATION USING VALVE OPTIONS 
Note 
While the internal Zero Span Option is a convenient tool for performing 
Calibration Checks, its O
3
 generator is not stable enough to be used as a 
source of Zero Air or Span Gas for calibrating the instrument. 
Calibrations should ONLY be performed using external sources of Zero 
Air and Span Gas whose accuracy is traceable to EPA or NIST standards. 
On instruments with Z/S valve options, zero air and span gas is supplied to the analyzer 
through the zero gas and span gas inlets (see Figure 9-2 and the zero and cal operations 
are initiated directly and independently with dedicated buttons (CALZ & CALS). 
9.3.3.1.  Setting the Expected O
3
 Span Gas Concentration with the Z/S Option Installed 
SAMPLE             RANGE=500.0 PPB          O3= XXXX
<TST
TST>
CAL CALZ CALS
SETUP
SAMPLE             RANGE=500.0 PPB          O3= XXXX
<TST
TST> ZERO
CONC
SETUP
SAMPLE             O3 SPAN CONC: 400.0 Conc
0
0
4
0
0
.0
ENTR
EXIT
The O
3
span concentration value automatically 
defaults to 400.0 Conc
Make sure that you input the ACTUAL
concentration value of the SPAN Gas.  
To change this value to meet the actual 
concentration of the SPAN Gas, enter the number 
sequence by pressing the button under each digit 
until the expected value is set.
EXIT discards the new 
setting
ENTR accepts the 
new setting
 
06870C DCN6332