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Model 400E Instruction Manual APPENDIX A-2: Setup Variables, Revision D.4
APPENDIX A-2: Setup Variables, Revision D.4
Table A-1: M400E Setup Variables, Revision D.4
SETUP VARIABLE
NUMERIC
UNITS
DEFAULT
VALUE
VALUE RANGE DESCRIPTION
DAS_HOLD_OFF
Minutes 15 0.5–20
Duration of DAS hold-off period.
CONC_PRECISION
— AUTO
AUTO, 0, 1, 2, 3,
4
Number of digits to display to the right of
the decimal point for concentrations on the
display. Enclose value in double quotes (")
when setting from the RS-232 interface.
PHOTO_LAMP
ºC
58
Warnings:
57–67
0–100
Photometer lamp temperature set point and
warning limits.
O3_GEN_LAMP
ºC
48
Warnings:
43–53
0–100
O
3
generator lamp temperature set point
and warning limits.
O3_GEN_LOW1
PPB 100 0–1500
O
3
generator low set point for range #1.
O3_GEN_LOW2
PPB 100 0–1500
O
3
generator low set point for range #2.
O3_SCRUB_SET
ºC
110
Warnings:
100–120
0–200
O
3
scrubber temperature set point and
warning limits.
CLOCK_ADJ
Sec./Day 0 -60–60
Time-of-day clock speed adjustment.
LANGUAGE_SELECT
— ENGL
0
ENGL,
SECD,
EXTN
Selects the language to use for the user
interface. Enclose value in double quotes
(") when setting from the RS-232 interface.
MAINT_TIMEOUT
Hours 2 0.1–100
Time until automatically switching out of
software-controlled maintenance mode.
LATCH_WARNINGS
— ON ON, OFF
ON enables latching warning messages;
OFF disables latching
CONV_TIME
— 1 SEC
0
33 MS, 66 MS, 133
MS, 266 MS,
533 MS,
1 SEC, 2 SEC
Conversion time for photometer detector
channel. Enclose value in double quotes (")
when setting from the RS-232 interface.
AD_MAX_DELTA
4
mV 1000 1–10000
Maximum reading-to-reading change on
any A/D channel to avoid spike
suppression.
O3_DWELL
Seconds 2 0.1–30
Dwell time after switching
measure/reference valve.
O3_SAMPLE
Samples 1 1–30
Number of detector readings to sample.
DARK_OFFSET
mV 0 -1000–1000
Photometer dark offset for measure and
reference readings.
FILT_SIZE
Samples 32 1–100
O
3
concentration filter size.
FILT_ASIZE
Samples 6 1–100
Moving average filter size in adaptive
mode.
FILT_DELTA
PPB 20 1–1000
Absolute concentration difference to trigger
adaptive filter.
FILT_PCT
Percent 5 1–100
Percent concentration difference to trigger
adaptive filter.
FILT_DELAY
Seconds 60 0–60
Delay before leaving adaptive filter mode.
FILT_ADAPT
— ON OFF, ON
ON enables adaptive filter.
OFF disables it.
04402 Rev D.4 A-11