What if my application encounters severe pressure fluctuations or pulsations?
In applications involving severe pressure fluctuations or pulsations, restrictors and/or buffers are recommended. In addition, Glycerine filled manometer can extend the life of the meter under these conditions.
How to add liquid to Glycerine filled manometer?
To fill most Glycerine filled manometer gauges, simply remove the filling plug located on the top of the gauge (12 o'clock position) and slowly pour the filling medium. Make sure there is a ½” air space between the fill fluid and the top of the window.
When do I need to vent the Glycerine-filled manometer?
All Glycerine-filled manometers should be vented after installation to maintain accuracy. Temperature fluctuations during transportation and process applications can cause the liquid filling to expand and contract, thereby increasing or decreasing the housing pressure. Therefore, the accuracy may be reduced, and the pointer may not be correctly zeroed before the meter is discharged into the atmosphere.
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