Calibration Procedures
Teledyne API – Model T300/T300M CO Analyzer
212
9.6.
CALIBRATION OF THE T300/T300M’S ELECTRONIC
SUBSYSTEMS
9.6.1.
DARK CALIBRATION TEST
The dark calibration test interrupts the signal path between the IR photo-detector and the
remainder of the sync/demod board circuitry. This allows the instrument to compensate
for any voltage levels inherent in the sync/demod circuitry that might affect the
calculation of CO concentration.
Performing this calibration returns two offset voltages, one for
CO MEAS
and one for
CO REF
that are automatically added to the CPU’s calculation routine. The two offset
voltages from the last calibration procedure may be reviewed by the user via the front
panel display. (See also Section 5.9.5).
To activate the dark calibration procedure or review the results of a previous calibration,
press:
06864D DCN7562
Summary of Contents for T300
Page 2: ......
Page 182: ...06864D DCN7562 ...
Page 227: ...225 This page intentionally left blank 06864D DCN7562 ...
Page 228: ...06864D DCN7562 ...