Sper Scientific 840007 Radiation Detection Meter - Manual (Page 2)

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TABLE OF CONTENTS
INTRODUCTION ....................................................... 2
CAUTION .................................................................. 2
BATTERY REPLACEMENT ...................................... 3
OPERATION ............................................................. 3
READINGS ................................................................ 5
INTERPRETING READINGS .................................... 6
SPECIFICATIONS ..................................................... 11
LIMITED WARRANTY ............................................... 12
NOTICE ..................................................................... 12
INTRODUCTION
This manual contains valuable information about the nature
of ionizing radiation that should be understood by the user
so that accurate measurements can be made. Information
on the care of your Geiger counter is also included. If the
following instructions are followed, your radiation monitor
will give you many years of reliable service.
The radiation meters are very sensitive pieces of equip-
ment. Although housed in a high-impact case, the Geiger-
Mueller tube that senses radiation is fragile. If the unit is
dropped, the G-M tube may break. Exposure of the unit
above 40°C (100°F) may also cause the G-M tube to stop
functioning. The electronic circuitry is sensitive to high hu-
midity (over 90% R.H.).
CAUTION
DO NOT put the unit in a very hot place (such as a car's
glove box, especially on a summer day).
DO NOT allow the unit to get wet. However, if this should
happen, clean it with a towel and allow unit to air-dry for
several days (do not place in an oven or microwave).
DO NOT open the unit (except for battery replacement).
There are no adjustments inside for the 840007 that can be
made by the user, since the unit is calibrated at the factory.
For the 840026, see instructions on page 5.