Greyline Instruments PDFM 5.1, User Manual

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Page 7
PDFM 5.1 Portable Doppler Flow Meter
MAIN DISPLAY
The main display shows the units selected from the Units/Mode menu, Flow or
Velocity rate being measured, TOTALIZER. The PDFM 5.1 will start-up with
this display.
Message is waiting. (Animated)
Unit plugged into charger.
Data logging is . off Data logging is . (Animated) on
(Animated when charging)
Battery
0%
Battery
25%
Battery
50%
Battery
75%
Battery
100%
MESSAGE ICON
Press

from the MAIN display to view error/warning messages provided by the
instrument. The Message icon will appear on the MAIN display if error messages
are being generated by the instrument. Press

to return to the main display.
STATUS
Press

from the MAIN display to view instrument status. Velocity will be
displayed in ft/sec or m/sec.
Tot Displays the current totalizer reading.
Signal Cutoff Adjust the setting in percent to suppress flow readings at
zero flow when fluid swirling or pipe vibration may
cause the instrument to continue reading. Example:
Signal Cutoff at 5% will force the display and outputs to
zero when signal strength drops below 5%.
Signal Strength Displays percentage of signal being received by the ultrasonic
sensor.
20mA at Displays the flow rate set as 20mA in the Calibration
menu. Press

to return to the main display.