Greyline Instruments PDFM 5.1, User Manual

Page: 13 / 31

Page 13
PDFM 5.1 Portable Doppler Flow Meter
SIMULATION
Exercises the 4-20mA.
Test Select Maximum and press

to simulate maximum Flow or Velocity and
to output 20mA to the analog channel.
Select
Minimum
and press

to simulate minimum Flow or Velocity and
to output 4mA to the analog channel.
To simulate measurements between minimum and maximum set
Test
to
Actual
and then enter for the flow measurement. The analog output will
respond to the simulated value.
SLEEP MODE
Logging in sleep mode requires a minimum sample time of 30 seconds. Selecting
sleep mode for 10 second sampling rate results in instrument always being
‘awake’.
CHARGING
A flashing battery indicates charging.
A solid battery indicates fully charged.