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Model GFC7000E Instruction Manual APPENDIX A-2: Setup Variables For Serial I/O, Revision
E.0APPENDIX A-3: Warnings and Test Functions, Revision E.0
045840110 Rev B.3 235
SETUP VARIABLE NUMERIC
UNITS
DEFAULT VALUE VALUE RANGE
DESCRIPTION
TEST_CHAN_ID — NONE
0
NONE,
CO MEASURE,
CO REFERENCE,
VACUUM
PRESSURE,
SAMPLE
PRESSURE,
SAMPLE FLOW,
SAMPLE TEMP,
BENCH TEMP,
WHEEL TEMP,
CHASSIS TEMP,
PHT DRIVE
Diagnostic analog output ID.
REMOTE_CAL_MODE — LOW
0
LOW,
HIGH
Range to calibrate during
contact closure or Hessen
calibration.
PASS_ENABLE — OFF ON, OFF ON enables passwords; OFF
disables them.
STABIL_GAS — CO
0
CO,
CO2
Selects gas for stability
measurement.
STABIL_FREQ Seconds 10 1–300 Stability measurement
sampling frequency.
STABIL_SAMPLES Samples 25 2–40 Number of samples in
concentration stability
reading.
PHOTO_TEMP_SET mV 2000
Warnings: 500–3000
0–5000 Photometer temperature
warning limits. Set point is
not used.
SAMP_PRESS_SET In-Hg 29.92
Warnings: 15–35
0–100 Sample pressure warning
limits. Set point is not used.
PURGE_PRESS_SET PSIG 7.5
Warnings: 2.5–12.5
0–100 Purge pressure warning
limits. Set point is not used.
SAMP_FLOW_SET cc/m 750, 800
3, 8
, 3000
4
,
2000
13
Warnings:
500–1000, 500–
1200
3,8
,
1000–5000
4
,
400–1000
8,9
,
1500–2500
13
0–5000 Sample flow warning limits.
Set point is not used.
SAMP_FLOW_SLOPE — 1 0.001–100 Slope term to correct sample
flow rate.
VAC_SAMP_RATIO — 0.53,
0.61
13
0.1–2 Maximum vacuum pressure /
sample pressure ratio for
valid sample flow calculation.
SAMP_TEMP_SET ºC 30
Warnings: 10.1–100
0–100 Sample temperature warning
limits. Set point is not used.
BOX_SET ºC 30
Warnings: 5–48
0–100 Internal box temperature
warning limits. Set point is
not used.
BENCH_CYCLE Seconds 2 0.5–30 Optical bench temperature
control cycle period.
BENCH_PROP 1/ºC 5 0–100 Optical bench temperature
PID proportional coefficient.
Proportional band is the
reciprocal of this setting.
BENCH_INTEG — 0.5 0–100 Optical bench temperature
PID integral coefficient.