Teledyne GFC-7000E - Trace CO2 Analyzer User Manual
Page 246
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.