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Operating the T703 Calibrator Teledyne API T703 Calibrator Operation Manual
94
6.10. SETUP MORE VARS: INTERNAL VARIABLES (VARS)
The T703 has several-user adjustable software variables, which define certain operational parameters. Usually,
these variables are automatically set by the instrument’s firmware, but can be manually re-defined using the
VARS menu.
The following table lists all variables that are available within the 818 password protected level. See Appendix
A2 for a detailed listing of all of the T703 variables that are accessible through the remote interface.
Table 6-11: Variable Names (VARS)
NO. VARIABLE DESCRIPTION
ALLOWED
VALUES
DEFAULT
VALUES
0
PHOTO_LAMP
1,2
Sets the photometer lamp temperature set
point and warning limits.
0ºC and 100ºC
58ºC
Warning limits
56ºC - 61ºC
1
O3_GEN LAMP
1,2
Sets the O
3
generator lamp temperature set
point and warning limits.
0ºC and 100ºC
48ºC
Warning limits
43ºC - 53ºC
2
O3_CONC_RANGE
Set the upper span point of the O
3
concentration range for TEST CHANNEL
analog signal O3_PHOTO_CONC.
0.1–20000 ppb 500 ppb
3
O3_PHOTO_BENCH_ONLY
2
O
3
bench control flag.
ON turns on the photometer pump and
switches measure/reference valve only
when the O
3
mode is set for BNCH (See
Section 3.4.5).
ON/OFF
OFF
4
ZA_PUMP_ENAB
2
Internal zero air pump control.
ON turns on internal zero air pump when
generating ozone.
ON/OFF
ON
5
STD_TEMP
1
Sets the standard Temperature used in
calculating O
3
flow rates and concentrations.
0ºC and 100ºC 25ºC
6
STD PRESS
1
Sets the standard pressure used in
calculating O
3
flow rates and concentrations.
29.92 in-Hg-A
15.00 – 50 .00
in-Hg-A
7
CLOCK_ADJ
Adjusts the speed of the analyzer’s clock.
Choose the + sign if the clock is too slow,
choose the - sign if the clock is too fast (See
Section 6.7.2).
-60 to +60 s/da
y
Default=0
0
1
DO NOT ADJUST OR CHANGE these values unless instructed to by Teledyne API’s customer service personnel.
2
Only available in calibrators with O
3
photometer and generator options installed.
NOTE:
There is a 2-second latency period between when a VARS value is changed and the new value is stored
into the analyzer’s memory.
DO NOT turn the analyzer off during this period or the new setting will be lost.
07223B DCN6378