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Calibration Procedures Teledyne API - Model 200EH/EM Operation Manual
168
7.6. CALIBRATION WITH REMOTE CONTACT CLOSURES
Contact closures for controlling calibration and calibration checks are located on the rear panel CONTROL IN
connector. Instructions for setup and use of these contacts can be found in Section 6.15.1.2.
When the appropriate contacts are closed for at least 5 seconds, the instrument switches into zero, low span or
high span mode and internal zero/span valves (if installed) will be automatically switched to the appropriate
configuration. The remote calibration contact closures may be activated in any order. It is recommended that
contact closures remain closed for at least 10 minutes to establish a reliable reading; the instrument will stay in
the selected mode for as long as the contacts remain closed.
If contact closures are used in conjunction with the analyzer’s AutoCal (Section 7.7) feature and the AutoCal
attribute
CALIBRATE is enabled, the M200EH/EM will not re-calibrate the analyzer until the contact is opened.
At this point, the new calibration values will be recorded before the instrument returns to SAMPLE mode. If the
AutoCal attribute
CALIBRATE is disabled, the instrument will return to SAMPLE mode, leaving the instrument’s
internal calibration variables unchanged.
04521C (DCN5731)