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ANALOG OUTPUT CALIBRATION
I
n the meters where the analog output is available, this feature is factory calibrated
through software. The user may also perform these
calibration procedures.
IMPORTANT
It is recommended to perform the output calibration
at least once a year. Calibration should only be
performed after 10 minutes from power up.
• With a multimeter or an HI931002 connect the common port to the ground output
and the second port to the current output or voltage output (depending on which
parameter is being calibrated).
•
Press and hold in sequence CFM first, then
and then CAL to enter the Analog
Output Calibration mode.
Calibration procedure may be interrupted by pressing CAL again at any time. If the
calibration procedure is stopped this way, or if the controller is switched off before the
last step, no calibration data is stored in non-volatile memory (EEPROM).
• Set the mA simulator to 20 mA and wait for the reading to stabilize, CAL will stop
blinking and an intermittent CFM will prompt the user to confirm the calibration.
• Press CFM to confirm. The meter will return to normal
• If everything is satisfactory the secondary LCD will
display “20” for the second calibration point.
