pump control: » refer to Section VI, Pump Control Application. Select func-
tion option 8, 9 or 10 and press “*” to scroll through the
loss of echo defaults. For options 9, pressing “*” will also
scroll through the cumulative, ratio or duty/back-up mode
of pump operation.
totalizer
and samplers:
» refer to Section VI, Pump Totalizer and OCM applications.
Relays are normally de-energized, contact closure is ap-
proximately 200 mSec duration.
scanner: » this function is specific to relay 5 and the DLD mode of op-
eration. The transducer hot is wired to the common termi-
nal of the relay so that when switched, the transceiver
may alternately access transducer #1 and #2. Refer to
Section VI, Differential Level application and Figure 3.
Setpoints
If the
ON
setpoint is higher than the
OFF
setpoint, the relay will function as a:
•
high alarm
•
pump down control
•
high differential alarm
If the
ON
setpoint is lower than the
OFF
setpoint, the relay will function as a:
•
low alarm
LCD display
loss of echo default
En = energized, pump ON after P-75 expires
dE = de-energized, pump OFF after P-75 expires
Ho = hold prior relay status after P-75 expires
sequential loop, optional to function 9
blank = cumulative
‘ = duty/back-up
A = ratio
function
8 = level, fixed roster
9 = level, sequential
10 = differential
e.g. dE:‘9 = duty/back-up sequential pumping,
de-energized under loss of echo
PL-399 5 – 6
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