Pentax PLP-601 Manuel d'utilisateur télécharger pdf (Page 30)

[Detecting the reference level]

At the measuring point,set the position of the detector nearly to the

height of the beam emitting aperture of the instrument.

Position the detector where the buzzer sound (or the beam reception

display appears) by directing the detecting display nearly toward the

instrument and moving the detector up and down.

Move the detector up and down again according to the beam

reception display (or the buzzer) and obtain the reference level.

NOTE:

• When detecting the reference level,the detector should face the

instrument in the range of about 40°,to the right and left from

the front.

Move the detector down as it is positioned high.

The buzzer sound beeps at short intervals.

This is the reference position.

The buzzer sound beeps continuously.

Move the detector up as it is positioned low.

The buzzer sounds lasting beeps intermittently.

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Pentax PLP-601 Manuel d'utilisateur Page 30