Operation
Calibration
Thermo Scientific
42iQLS Instruction Manual
3-13
The Calibrate Span Coefficients screens are used to calibrate the NO, NO
2
,
and NO
x
span coefficients.
The following screens show the calibration screen in single range mode and
dual or auto range mode. The dual and auto range modes have two span
factors (high and low). This allows each range to be calibrated separately.
When calibrating the instrument in dual or auto range, be sure to use a low
span gas to calibrate the low range and a high span gas to calibrate the high
range. For more information about range modes, see “
Range Mode
Selection
” on page
3-85
.
It is important to note the averaging time when calibrating. The longer the
averaging time the more precise the calibration results. To achieve
maximum precision, allow the instrument to stabilize each time input gas is
changed and set the averaging time to 300-second averaging.
Home Screen>Calibration>Calibrate Span Coefficients (single range
mode)
Home Screen>Calibration>Calibrate Span Coefficients (dual or auto
range mode)
Calibrate Span
Coefficients
Содержание 42iQLS
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