If it is wished to momentarily view an alternate reading while in the RUN mode and P-39
≠
0, press the desired calibrator key (3 - HEAD and 4 - FLOW are not applicable to the
pumped volume totaling)
e.g. - normal reading is high total, P-39 = 1
- to momentarily view low total, press
#### low total, is momentarily displayed
#### normal reading, high total is returned
If P-39 = 0, alternate readings cannot be momentarily displayed. Pressing the desired
key will change the display and hold it there until the next alternate reading is selected.
In the calibrate mode, the high and low totals can be viewed or preset to any value by
P-54 and P-55 respectively.
The pumped volume readings (high and low total) may be scaled down by factors of 10
(P-52) to slow down the totalizer’s rate of fill and its decimal point (P-53) positioned for
the resolution required. If it is desired to change the scaling factor or decimal point
location after totaling has begun, record the high and low totals and reset the totalizer to
zero.
Further to alarm and pump functions, relays may be programmed to act as a
momentary contact closure for a remote totalizer, flow sampler or time sampler (refer to
section V, Relays). The duration of a momentary contact closure is 200 mSec for which
the corresponding relay status LED will flash. As a remote totalizer relay, the contact is
closed each time the displayed total is increased by the amount entered into P-56. As a
flow sampler relay, the contact is closed each time the volume of liquid as set by P-57
and P-58 is pumped. As a time sampler relay, the contact is closed at the rate of the
time period entered into P-59.
The mA output responds to the liquid reading (level, if P-34 = 0 or volume, if P-34
≠
0)
only. In the event of fail-safe due to loss of echo, the mA output will respond as
programmed by P-6 and P-74, but the totalized volume will hold its last reading.
Refer to Figure 6.
2
PL-399 6 – 14
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