BituminousLab
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- Oct 17, 2015
- 1
When calibrating the Type B Air Meter, if the Initial Pressure (IP) Line is higher than 5, can the gauge be reset or does it have to be replaced? The IP line fluctuates with seemingly every calibration, which is performed every three months, and sometimes it goes beyond 5, which is not recordable. Normally I would replace the gauge.