Greyline Instruments PDFM 5.1, User Manual

Page: 12 / 31

Page 12
PDFM 5.1 Portable Doppler Flow Meter
SPECIAL FUNCTIONS
Language Select English , French or Spanish
Backlight Select High , Medium or Low for continuous
backlight.
Select Key Hi/Lo for high backlight (for 1 minute)
after a keypress and then Lo backlight until a key is
pressed again.
Select Key High , Med or Low for backlight after
a keypress and then backlight off until a key is pressed
again.
Reset Totalizer Press

and select Yes to erase and restart the
totalizer at zero.
Negative Totals
Select
Yes
to have reverse flow readings deducted
from the totalizer. Select
NO
to totalize forward
flow only and ignore reverse flow.
Flo Direction
Select
On
to enable flow direction measurement.
Select
Off
to disable flow direction measurement.
Select
Invert
to invert the sense of the flow
measurement.
Cal Constant
Scales the velocity reading. Factory value is close to
1.000 for a PSE4-A sensor.
Restore Defaults
Select
Yes
and press

to erase all user settings and return
the instrument to factory default settings.
New Password
Select any number from 0000 to 9999 and press

.
Default setting of 0000 will allow direct access to the
calibration menus. Setting of any password greater
than 0000 will require the password to be entered to
access the calibration menus.
Press

to return to Menu Selections .