APPENDIX A Model 200E Instruction Manual
Setup Variable Numeric
Units
Default
Value
Value
Range
Description
NO_DWELL Seconds 1.5 0.1-30 Dwell time after switching valve to
NO position.
SG_NO_DWELL Seconds 1 0.1–30 Dwell time after switching valve to
NO position in single-gas measure
modes.
NO_SAMPLE Samples 2 1-30 Number of samples to take in NO
mode.
SG_NO_SAMPLE Samples 1 1–30 Number of samples to take in NO
mode in single-gas measure
modes.
USER_UNITS — PPB PPB
PPM
UGM
MGM
Concentration units for user
interface. Enclose value in double
quotes (") when setting from the
RS-232 interface.
DIL_FACTOR — 1 1-1000 Dilution factor. Used only if is
dilution enabled with
FACTORY_OPT variable.
AZERO_ENABLE — ON ON, OFF ON enables auto-zero; OFF
disables it.
AZERO_FREQ Minutes 1 0-60 Auto-zero frequency.
AZERO_DWELL Seconds 2 0-60 Dwell time after opening or closing
auto-zero valve.
AZERO_SAMPLE Samples 2 1-10 Number of auto-zero samples to
average.
SG_AZERO_SAMP Samples 2 1–10 Number of auto-zero samples to
average in single-gas measure
modes.
AZERO_FSIZE Samples 15 1-50 Moving average filter size for auto-
zero samples.
AZERO_LIMIT mV 200 0-1000 Maximum auto-zero offset allowed.
NOX_SPAN1 Conc. 400 4-20000 Target NO
X
concentration during
span calibration of range 1.
NO_SPAN1 Conc. 400 4-20000 Target NO concentration during
span calibration of range 1.
NO2_SPAN1 Conc. 400 4-20000 Target NO
2
concentration during
converter efficiency calibration of
range 1.
NOX_SLOPE1 PPB/mV
3,5
PPM/mV
4
1 0.25-4 NO
X
slope for range 1.
NOX_OFFSET1 mV 0 -10000-
10000
NO
X
offset for range 1.
NO_SLOPE1 PPB/mV
3,5
PPM/mV
4
1 0.25-4 NO slope for range 1.
NO_OFFSET1 mV 0 -10000-
10000
NO offset for range 1.
NOX_SPAN2 Conc. 400 4-20000 Target NO
X
concentration during
span calibration of range 2.
234 044100110 Rev A