Product Manual

17
If the gauge needle sticks in one location, or is too far out of calibration it indicates the gauge has
either been frozen or damaged. The gauge should be returned to the factory for repair or
replacement, as necessary.
The presence of heavy condensation inside the gauge (under the plastic face cover) indicates the
gauge seal has been broken. Reconditioning is advisable.
NOTE: The “Test Pump” option affords the user the convenience of having a gauge
mounted on the pump for comparing instrument gauges to the pump gauge. Assuming
that the pump gauge is in good calibration, differences greater than 4-5 cb (kPa) between
pump and instrument gauges should prompt factory service of gauges. The “Test Pump
Adaptor” can be purchased to convert a standard pump to a test pump.
Factory Service
Our policy is to produce an instrument that will give years of trouble-free operation, rather than rely
upon sales of parts and repairs as a source of income. Repairs are made at a very modest cost, much
less than the cost of a new instrument.
In case of accidental damage to an instrument, pack it carefully for shipment to the factory for repairs.
This eliminates the possibility of damage to the gauge in transit.
If only the gauge is needed, we supply a special pipe thread dope on the replacement. Be careful not
to cross thread the gauge and use a 9/16” open end wrench to both remove and replace gauge.
Thread the replaced gauge to the next to last thread. DO NOT FORCE.
Your supplier can easily arrange for factory reconditioning of your instruments. Always allow 6-8
weeks lead time for this service, which is best accomplished over the winter when instruments are
not being intensively used.
NOTE: Test Pump gauges will be recalibrated at a discount from regular cost of gauge
recalibration.