When reading a pressure that fluctuates severely on a direct-reading pressure gauge, what should be done?
The pulsation dampening needle valve should be opened wider until the fluctuation ceases.
The maximum and minimum pressures should be noted and added together and divided by two to obtain the average pressure.
Attempt to determine the midpoint between the maximum and minimum pressures and use this an estimate of the average pressure.
The pulsation dampening needle valve should be throttled down (without closing) until the fluctuation ceases.
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