Maximum Predictor - Manual

PREDICTOR
SETTING AND OPERATION
INTRODUCTION
SETTING YOUR BAROMETER
30 Samuel Barnett Boulevard
New Bedford, MA 02745
(508) 995-2200
Your barometer has been carefully calibrated and tested at the factory and
needs but one simple adjustment before installation at your location. This
adjustment is made by inserting a screw driver in the recessed slotted screw
at the back of the barometer and turning this screw to the proper setting.
The simplest method of obtaining the correct barometric pressure for your
location is to consult the local weather bureau, airport or perhaps a nearby
individual with a correctly set barometer.
Due to the nature of aneroid (mechanical) barometers it may be necessary
to fine tune the intial setting to accomodate the natural mechanical break-in
of the device by simply repeating the setting procedure.
SCREW
WOOD
PANEL
SCREW
SCREW
Inside the brass barometer case is a sealed, flexible metallic drum. As the atmospheric pressures changes,
the drum is compressed or expanded. This change is transmitted through linkage to a pointer - thus, change
in atmospheric pressure is evidenced by movement of the pointer around the dial. The linkage has a
bimetallic element which automatically compensates for changes in temperature which would otherwise introduce
an error in barometer readings.
We recommend mounting the read-out on
one of our pre-drilled and centered panels.