John,
You may have meter static build up. This would give you very unreliable meter readings. Never polish the plastic meter face! It creates a significant static charge. The Meter is a very good capacitor. The plastic face cover, the metal plate, and the plastic meter back make a dandy capacitor that can randomly freeze the needle. Carefully!!!! pry off the cover and wash it in mild dishwash detergent. Air dry!!!! Run a #2 graphite pencil around the perimeter of the meter cover. The graphite can bleed off some of the charge. You may notice a rough dull coating on the lower portion and around the meter. This was the origional esd control applied at the factory. Also if the 4 meter mounting bolts are insulated from the metal plate by tape this adds to the capacitive effect. Remove the tape and use a washer to raise the screw head grounding the metal meter plate to the screw to the chasis. Well worth the try. Good luck.
You may have meter static build up. This would give you very unreliable meter readings. Never polish the plastic meter face! It creates a significant static charge. The Meter is a very good capacitor. The plastic face cover, the metal plate, and the plastic meter back make a dandy capacitor that can randomly freeze the needle. Carefully!!!! pry off the cover and wash it in mild dishwash detergent. Air dry!!!! Run a #2 graphite pencil around the perimeter of the meter cover. The graphite can bleed off some of the charge. You may notice a rough dull coating on the lower portion and around the meter. This was the origional esd control applied at the factory. Also if the 4 meter mounting bolts are insulated from the metal plate by tape this adds to the capacitive effect. Remove the tape and use a washer to raise the screw head grounding the metal meter plate to the screw to the chasis. Well worth the try. Good luck.
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