Hanna Instruments HI 3512 - Manual (Page 32)

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ERROR SCREENS
Wrong standard
The calibration cannot be confirmed. Verify that the correct standard is
selected.
The message appears if mV input is out of ±2000 mV range.
Wrong slope
The calibration cannot be confirmed.
This message is displayed if slope is out of the accepted range.
Slope under accepted value (30 % default slope). Verify that the correct
standard is selected.
Slope over accepted value (130 % default slope).
Wrong old slope
An inconsistency between present and previous (old) calibration is
detected. Clear old calibration parameters and continue calibration from
the current point. The instrument will keep all confirmed values during
current calibration.
The instrument will display “ ----“on the primary LCD if is not calibrated
or after all calibrations are cleared.
If “ Clear“ is pressed during the first calibration point, the instrument
returns to measurement mode.
Notes: • Press Temp function key to select temperature value to be
changed if the temperature probe is not connected;
• ISE range is not temperature compensated on this meter;
• Standards and samples should be at the same temperature.