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APPENDIX A-2: Setup Variables For Serial I/O, Revision D.3 (05623D DCN5839) T700, M700E Calibrator Manuals
A-14
Setup Variable Numeric
Units
Default
Value
Value
Range
Description
PDELTA_GAIN PPB/dIn-Hg 0 -200–200
Multiplied by difference between
measure and reference pressure
and added to concentration.
PDELTA_CAL_DUR Minutes 5 0.1–20
Duration of pressure
compensation calibration
procedure.
O3_SLOPE_CONST — 1.0 0.1–10
Constant factor to keep visible
slope near 1.
O3_SLOPE — 1 0.850–1.150 O
3
photometer slope.
O3_OFFSET PPB 0 -1000–1000 O
3
photometer offset.
O3_BCAL_SET PPB 400 0.1–10000
Target O
3
concentration during
bench span calibration.
O3_PUMP_STARTUP — ON OFF, ON
O
3
pump startup enable. ON
enables startup procedure.
O3_PUMP_MIN_FLOW LPM 0.2 0–1
Minimum flow rate that indicates
O
3
pump is on.
O3_PUMP_TIMEOUT Seconds 30 1–180 O
3
pump startup timeout.
O3_PUMP_PULSE Seconds 0.5 0.1–10
O
3
pump power off pulse
duration.
PHOTO_CYCLE Seconds 10 0.5–30
Photometer lamp temperature
control cycle period.
PHOTO_PROP — 0.5 0–10
Photometer lamp temperature
PID proportional coefficient.
PHOTO_INTEG — 0.05 0–10
Photometer lamp temperature
PID integral coefficient.
PHOTO_DERIV — 0.2 0–10
Photometer lamp temperature
PID derivative coefficient.
PHOTO_FLOW_SLOPE — 1 0.001–100
Slope term to correct photometer
sample flow rate.
O3_DEF_DRIVE mV 800 0–5000
O
3
generator default drive
setting.
O3_GEN_FLOW LPM 0.105 0.001–1.000 O
3
generator nominal flow rate.
O3_GEN_MODE — CNST CNST,
REF,
BNCH
O
3
generator control mode.
Enclose value in double quotes
(") when setting from the RS-232
interface.
O3_MIN_CONC PPB 25
1
5
0–100
O
3
generator minimum reliable
concentration. Less than this is
treated as zero.
LOW_RANGE_THRESH
5
PPB 100 10–2500
O
3
generator concentration
threshold for low range switch.
LOW_RANGE_FRAC
5
— .5 .01–1.0
Fraction of O
3
generator flow
used in low range mode.
06873B DCN6388