General-tools-and-instruments DLAF8000C User Manual download pdf (Page 9)

Zero Offset Adjustment of Light Function :

* For best results zero the light sensor prior to use in a

dark environment. Placing the light sensor end of the

meter under a desktop or flat surface so as to block

any light can accomplish this. Then press the

"Unit/Zero Button" ( 3-4, fig. 1 ) to set the meter

indication to zero.

* Zero point can drift due to environment temperature

and battery power change as well as for other reasons.

It is recommended that the zero be checked

frequently using the above procedure.

5. OTHER FUNCTIONS

5-1 Hold Function

Whenever press the "Hold Button (3-2, Fig. 1)" will freeze

the current reading value with a "HOLD" symbol on the

display.

5-2 Data Record Function

1) The Data Record function records & displays the maximum

and minimum reading values. Start the Data Record function

by pressing the " Max./Min. Button " ( 3-3, Fig. 1 ) once.

There will be a " REC " symbol on the display.

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General-tools-and-instruments DLAF8000C User Manual Page 9