Watson-Marlow 520DuN IP66/NEMA 4X User Manual
45
If you chose a volumetric flow rate from either screen, a confirmation screen
appears briefly and the pump displays the second screen of the Setup menu.
If you chose a mass flow rate from either screen, the pump asks for the specif-
ic gravity of the fluid to be pumped. Use the
UP
and
DOWN
keys to enter a
value between 0.01 and 15.00. Press
ENTER
to confirm your decision. Press
STOP
if you decide to make a different choice of units.
A confirmation screen appears briefly and the pump displays the second screen
of the Setup menu.
18.9 Run time
The 520DuN pump cumulatively records how many complete hours its motor runs.
The figure can be displayed or reset to zero.
In the third screen of the Setup menu select
Run time
using the
UP
and
DOWN
keys. Press
ENTER
to confirm your choice.
The pump briefly displays the total hours its motor has operated since the last
time the counter was reset to zero hours, followed by an opportunity to reset
the counter to zero hours. An example is shown here. Use the
UP
and
DOWN
keys to choose
Yes
or
No
and press
ENTER
to confirm your decision.
The total hours screen is briefly displayed with its total reset to zero hours, or
unchanged, as appropriate. The pump displays the third screen of the Setup
menu.
Note
: Run time is displayed on the Combined display. See 18.3
Display
. Run time
does not zero when factory default is selected.
