1. Stopper Button Operation
ed when the stopper button mark
deflects according to bright-
ness. Then when the button is released,
the needle remains fixed at the indicated
position.
By holding the stopper button depressed
and turning it clockwise so that the mark
At this time, the meter will deflect freely
even if the stopper button is released. To
fix the needle, turn the stopper button
counter-clockwise to where the
With stopper button in released
position, cover light sensor
with hand or black cloth to completely
correctly indi-
cates zero position. If the indication
deviates from zero, while observing
meter indication, use a coin or similar tool
adjust for zero indication.
