Martel Electronics 320 - Manual (Page 15)

than the instantaneous values. This feature is useful
when measuring pressures that are pulsating or
otherwise unstable.
The Model 320 makes 2-3 pressure measurements per
second. When the Damp mode is active, the Model
320 updates the display each time a measurement is
made. The displayed is the average of the last 16
measurements.
PORT SELECT KEY
The Port Select key is used to select either or both of
the pressure ports to be displayed on dual sensor 320
calibrator models.
If the Model 320 is equipped with dual pressure
sensors, pressing the Port Select key will alternately
select the left port, the right port, or both ports.
If both ports are selected, the Model 320 will display
both pressures simultaneously but milliamps or volts
cannot be displayed.
If one port is selected, the Model 320 will display one
pressure and either milliamps or volts.
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