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
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
period.
WHEEL_PROP 1/ºC 1 0–100
Wheel temperature PID proportional
coefficient. Proportional band is the
reciprocal of this setting.
WHEEL_INTEG — 0.035 0–100
Wheel temperature PID integral
coefficient.
WHEEL_DERIV — 2 0–100
Wheel temperature PID derivative
coefficient.
O2_CELL_CYCLE 5 Seconds 10 0.5–30
O2 cell temperature control cycle
period.
O2_CELL_PROP 5 — 1 0–10
O2 cell PID temperature control
proportional coefficient.
O2_CELL_INTEG 5 — 0.1 0–10
O2 cell PID temperature control
integral coefficient.
O2_CELL_DERIV 5 — 0 (disabled) 0–10
O2 cell PID temperature control
derivative coefficient.
TPC_ENABLE — ON OFF, ON
ON enables temperature/ pressure
compensation; OFF disables it.
CONC_LIN_ENABLE — ON OFF, ON
ON enables concentration
linearization; OFF disables it.
SERIAL_NUMBER — “00000000
1
Any character in the
allowed character set.
Up to 100 characters
long.
Unique serial number for instrument.
A-14 05233 Rev G.4