Teledyne 9110TH - Nitrogen Oxides Analyzer - Manual (Page 151)

Operating Instructions Model 9110TH NOx Analyzer
Teledyne Analytical Instruments 131
4.13.6. ANALOG OUTPUT CALIBRATION
Analog calibration needs to be carried out on first startup of the analyzer (performed in
the factory as part of the configuration process) or whenever recalibration is required.
The analog outputs can be calibrated automatically, either as a group or individually
(Section 4.13.6.1), or adjusted manually (see Section 4.13.6). (Manual calibration should
be used for the 0.1V range or in cases where the outputs must be closely matched to the
characteristics of the recording device. Manual calibration requires the AUTOCAL
feature to be disabled).During automatic calibration the analyzer tells the output
circuitry to generate a zero mV signal and high-scale point signal (usually about 90% of
chosen analog signal scale) then measures actual signal of the output. Any error at zero
or high-scale is corrected with a slope and offset.
To enable or disable the Auto-Cal feature for one output channel, press.
From the
AIO CONFIGURATION SUBMENU
(See Section 6.13.4.1)
DIAG ANALOG I/O CONFIGURATION
PREV NEXT ENTR EXIT
DIAG AIO DATA_OUT_3: 5V, NXCNC1, NOCAL
<SET SET> EDIT EXIT
DIAG AIO DATA_OUT_3 AUTO CAL.:ON
<SET SET> EDIT EXIT
DIAG AIO DATA_OUT_3 AUTO CAL.:ON
ON ENTR EXIT
Toggle this button
to turn AUTO CAL
ON or OFF
(OFF = manual
calibration mode).
ENTR accepts
the new setting.
EXIT ignores the
new setting
Continue pressing SET> until ...
DIAG AIO DATA_OUT_3 RANGE: 5V
SET> EDIT EXIT
DIAG AIO DATA_OUT_3 AUTO CAL.:OFF
OFF ENTR EXIT
Continue pressing SET> until you reach the
output to be configured
DIAG AIO AOUTS CALIBRATED: NO
SET> CAL EXIT
Note
Channels with current loop output options cannot be calibrated
automatically. Outputs Configured for 0.1V full scale should always be
calibrated manually.