APPENDIX A-2: Setup Variables For Serial I/O, Revision G.4 Model 360E Instruction Manual
SETUP VARIABLE NUMERIC
UNITS DEFAULT
VALUE VALUE RANGE DESCRIPTION
SAMPLE PRESSURE,
SAMPLE FLOW,
SAMPLE TEMP,
BENCH TEMP,
WHEEL TEMP,
O2 CELL TEMP 5,
CHASSIS TEMP,
PHT DRIVE
REMOTE_CAL_MODE — LOW
1 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
1 CO,
O2 5
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
2500
Warnings:
250–4750
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.
SAMP_FLOW_SET cc/m
750
Warnings:
500–1000
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 0.1–2
Maximum vacuum pressure / sample
pressure ratio for valid sample flow
calculation.
PURGE_PRESS_SET PSIG
7.5
Warnings:
2.5–12.5
0–100 Purge pressure warning limits. Set
point is not used.
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.
BENCH_DERIV — 2 0–100
Optical bench temperature PID
derivative coefficient.
WHEEL_CYCLE Seconds 2 0.5–30
Wheel temperature control cycle
A-20 05233 Rev G.4