Teledyne API Model 200A NOX Analyzer Instruction Manual, 02246, Rev. G, DCN 5247

Table 9-9-5: Model 200A Internal Variables

No. Name Units Default
Value Value
Range Description
0 DAS_HOLD_OFF min 15 0-60 Time that data is not put into
DAS after CAL or DIAG
modes
1 TPC_ENABLE Logic OFF ON-OFF Temp/Pres compensation
enable
2 DYN_ZERO Logic OFF ON-OFF Enable zero calibration during
rear panel contact closure zero
mode
3 DYN_SPAN Logic OFF ON-OFF Enable span calibration during
rear panel contact closure
span mode
4 SFLOW_SET cc/min. 500 400-1000 Nominal sample flow rate
5 OFLOW_SET cc/min. 80 0-500 Nominal ozone flow rate
6 IZS_SET C 50 30-70 IZS temperature set point
7 RS232_MODE Bit
Field
0 0-99999 Value is SUM of following
decimal numbers:
1=enable quiet mode
2=enable computer mode
4=enable security feature
8=enable front panel RS-232
menus
16=enable alternate protocol
32=enable multidrop protocol
8 CLOCK_ADJ Sec. 0 +-60 Real-time clock speed
adjustment
9 CAL_ON_NO2 OFF ON-OFF Enable calibrate on NO2 perm
tube

9.1.5 Test Channel Analog Output

Many of the TEST functions have an analog voltage associated with them. As a diagnostic aid it

is possible to route the various test voltages out the 4th analog output.

9-20

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