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Teledyne API T703 Calibrator Operation Manual Operating the T703 Calibrator
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6.9.2. TEST CHANNEL CALIBRATION
TEST CHANNEL calibration needs to be carried out on first startup of the analyzer (performed in the factory as
part of the configuration process) or whenever re-calibration is required. The analog outputs can be calibrated
automatically or adjusted manually. In its default mode, the instrument is configured for automatic calibration of
all channels, which is useful for clearing any analog calibration warnings associated with channels that will not
be used or connected to any input or recording device, e.g., datalogger.
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.
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.
Automatic calibration can be performed via the AOUTS CALIBRATION command, or by using the CAL button
located inside TEST_CHANNEL submenu. By default, the analyzer is configured so that calibration of TEST
CHANNEL can be initiated with the AOUTS CALIBRATION command.
07223B DCN6378