Weems and Plath Endurance II 135 Barometer/Thermometer - Manual (Page 13)

Barometer needle shows incorrect reading:
A. Tap the barometer glass lightly and review the reading.
B. Adjust the slot head screw in the back of the movement, turning either
left or right to bring the needle to the correct reading. Never turn this screw
more than one rotation to avoid damage to the movement.
C. If A or B do not resolve the problem, call Customer Service at 1-800-638-0428.
VII. Barometer/ Thermometer Instructions
Please see instructions above (VI) to adjust barometer.
Thermometer has been preadjusted and calibrated in a temperature controlled
environment at the factory.
VIII. Thermometer Instructions
This bimetal thermometer works on the principle that different metals
contract and expand to different degrees when exposed to temperature
changes. This thermometer has been preadjusted and calibrated in a
temperature controlled environment at the factory.
To Recalibrate:
On the back, in the center of the movement, you will see an adjustment
port. Insert a small eyeglass flathead screwdriver into the slot. Hold the unit
vertically as you make the adjustment. Gently turn the mechanism until the
pointer indicates the correct temperature.
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