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

For connection with a CA-DP40 data processor, you can use a mini DIN cable or a USB cable.
• For RS-232C connection, connect the mini DIN plug of the RS mini DIN cable IF-A30 (or IF-A31 or IF-A32) for the data
processor to the RS-232C connector of the probe and the probe RS-232C connector of the CA-DP40 data processor.
Connection via a mini DIN cable (using IF-A30/31/32)
• For USB connection, connect the USB mini B plug of the supplied USB cable IF-A28 to the USB connector of the probe.
Connect the USB plug on the other side of the cable to the probe USB connector of the CA-DP40 data processor.
Connection via a USB cable (using IF-A28)
Mini B plug

About Zero Calibration

Zero calibration performs zero point adjustment while blocking entry of light into the probe's receptor.
Be sure to perform zero calibration whenever the instrument is started.
Notes on zero calibration
• Perform zero calibration if the ambient temperature has changed.
• During zero calibration, the shutter inside the probe automatically closes, but just in case, do not direct the end of the
probe toward an illuminant with luminance exceeding the upper limit of the measurement range.

1. 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.
Mini DIN plug
IF-A30/31/32
IF-A28
Mini DIN plug
USB plug
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Data Processor