How To Check Zero Calibration - Konica Minolta CA-410 Instruction Manual

Error Messages on the LCD Display:
z"0-cal Error"
• Cause: Excessively strong light is entering the probe's receptor.
• Action: Retry 0-cal.
In such cases, turn the power OFF and back ON if possible, and then retry 0-cal.
If the same error occurs again, the light-receiving circuit is faulty.
If zero calibration can be performed correctly by shielding the light-receptor on the tip of the probe, the light
shield built into the probe is faulty.
In either case, contact a KONICA MINOLTA-authorized service facility.

2. How to Check Zero Calibration

To check whether zero calibration has been performed correctly, block entry of light into the end of the probe using a
blackout curtain, etc., so that the receptor is not exposed to light.
• Zero calibration has been performed correctly if zero is displayed for the Lv section on the controller's measured value
display. If a value other than zero is displayed, perform zero calibration again.
For other error messages, refer to page 134.
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