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APPENDIX A-2: Setup Variables For Serial I/O Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)
A-10
Setup Variable Numeric
Units
Default
Value
Value
Range
Description
PPB,
PPM,
UGM,
MGM
%
4, 5, 9, 18
USER_UNITS — PPM
0
PPM
3, 8
MGM
3, 8
Concentration units for user
interface.
NEG_CONC_SUPPRESS — OFF,
ON
17
OFF, ON
ON pegs negative concentrations
at zero; OFF permits negative
concentrations
DIL_FACTOR — 1 0.1–1000
Dilution factor. Used only if is
dilution enabled with
FACTORY_OPT variable.
DARK_CAL_DURATION Seconds 180,
60
4
10–600
Duration of dark cal. First two-
thirds is stabilization period; final
third is measure period.
DARK_MEAS_MV mV 0 -1000–1000 Dark offset for measure reading.
DARK_REF_MV mV 0 -1000–1000 Dark offset for reference reading.
CO2_COMP_ENABLE — OFF ON, OFF
ON enables CO
2
compensation;
OFF disables it.
CO2_COMP_CONC % 0 0–20
CO
2
concentration to
compensate for.
SOURCE_DRIFT_ENAB
21
— OFF ON, OFF
ON enables source drift
compensation; OFF disables it.
SOURCE_DRIFT
21
PPB/Day 0 -500–500
Source drift compensation rate of
change.
CO_CONST1 — 8000,
500
15,20,22,23
78.8
9,12
3020
18
500
4,9,12
39600
8
40000
3
100–50000 CO calculation constant.
CO_CONST2 — 0.2110
0.356
20,22,23
0.367
15
1.458
9,12
1.4625
18
1.448
4
0.192
8
0.187
3
0.1196
24
0–10 CO calculation constant.
ET_MEAS_GAIN — 1 0.0001–9.9999
Electrical test gain factor for
measure reading.
ET_REF_GAIN — 1 0.0001–9.9999
Electrical test gain factor for
reference reading.
06864B DCN6314