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APPENDIX A-2: Setup Variables For Serial I/O, Revision K.6 M300EU Addendum to M300E/EM Manual
SETUP VARIABLE
NUMERIC
UNITS
DEFAULT
VALUE
VALUE RANGE DESCRIPTION
O2_FILT_PCT % 2 0.1–100
Relative change in O
2
concentration to
shorten filter.
O2_FILT_DELAY
Seconds 20 0–300 Delay before leaving O
2
adaptive filter mode.
O2_DIL_FACTOR — 1 0.1–1000
Dilution factor for O
2
. Used only if is dilution
enabled with FACTORY_OPT variable.
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.
O2_CELL_SET ºC
50
Warnings:
45–55
30–70
O
2
sensor cell temperature set point and
warning limits.
STD_O2_CELL_TEMP ºK 323 1–500
Standard O
2
cell temperature for temperature
compensation.
ZERO_ENABLE — ON, OFF OFF, ON
ON enables auto-zero calibration using
scrubber; OFF disables it.
ZERO_FREQ
Minutes 5 0.1–1440 Auto-zero calibration period.
CO2_TARG_SPAN_CONC % 12 0.1–1000
Target CO
2
concentration during span
calibration.
CO2_SLOPE
— 1 0.5–5 CO
2
slope.
CO2_OFFSET
% 0 -10–10 CO
2
offset.
O2_TARG_SPAN_CONC % 20.95 0.1–100
Target O
2
concentration during span
calibration.
O2_SLOPE
— 1 0.5–2 O
2
slope.
O2_OFFSET
% 0 -10–10 O
2
offset.
CO2_RANGE
% 15 0.1–500 CO
2
concentration range.
O2_RANGE
% 100 0.1–500 O
2
concentration range.
O2_CELL_CYCLE
Seconds 10 0.5–30 O
2
cell temperature control cycle period.
O2_CELL_PROP — 1 0–10
O
2
cell PID temperature control proportional
coefficient.
O2_CELL_INTEG — 0.1 0–10
O
2
cell PID temperature control integral
coefficient.
O2_CELL_DERIV — 0 (disabled) 0–10
O
2
cell PID temperature control derivative
coefficient.
A-10 05924 Rev K.6