Dynasonics 901 Series Enhanced Ultrasonic Flow Meter - Manual (Page 26)

Rev.
04/02 -25- D901/M
When utilizing the MGD engineering UNITS, the totalizer
defaults to a VOL. PULSE multiplier of 10E3. This is not
reflected on the display. Example: In MGD mode, a VOL.
PULSE entry of 3 will result in an effective accumulation of
E106 gallons (millions of gallons).
The UNITS key allows the selection of measuring units.
Table 7 shows applicable codes for the engineering units
available.
Attempting to enter values other than 1, 2 or 3 will result in
an UNDER! or OVER! to be displayed. Non-whole
number values will result in a RANGE! display. A
legitimate value must be entered.
A few factors can influence the readings of the D901/M
flow meter. The CAL entry allows the user to compensate
for flow discrepancies without affecting the factory
calibration. Examples of situations that can cause reading
discrepancies are:
• Operation on liquids with sonic velocity carrying
properties that are different than water.
• Transducers mounted in non-recommended locations.
• Operation on fluids with a large amount of suspended
solids.
UNITS CODE U.S. METRIC
1 FPS MPS
2 GPM LPM
3 MGD LPS
Table 7
PART 3 - STARTUP AND CONFIGURATION
Important Note for
MGD Configurations
Engineering Units
Input
Altering the
CALibration of the
D901/M