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But if the flow sensor is not triggered (because there is no flow) within the
set time, then the Flow Alarm will trigger.
Default setting: 60 seconds
Range: 5–240 seconds
Low flow warning/alarm
During sampling water flow can decrease. If the water flow falls below the
low flow warning set-point, this will trigger a low flow warning. If the water
flow rises above the set-point again, the warning will be cancelled.
If the water flow continues to decrease and falls below the low flow alarm
set-point, this will trigger a low flow alarm once the flow alarm delay period
has expired. If the water flow rises above the low flow alarm set-point during
this time, the alarm will be cancelled. If the pump continues to operate when
the water flow is low, it may become damaged.
Warning default setting: 2.5 l/minute
Range: 2–10 l/minute
Alarm default setting: 1.5 l/minute
Range: 1.5–10 l/minute
Flow alarm delay
The flow alarm delay allows for small flow fluctuations without trigging the
flow alarm. When the WMS is sampling, flow alarm delay controls for how
long the flow may be missing before the Flow Alarm is triggered because of
low flow.
Default setting: 3 seconds
Range: 3–10 seconds
High pressure warning/alarm
During sampling it is possible that the pressure can rise due to i.e., clogging,
closed valve or increased back pressure. If the pressure increases above the
high-pressure warning set-point, a high-pressure warning will be set.
If the pressure decreases below the set-point, the warning will be cancelled.
If the pressure continues to increase and moves above the high-pressure
alarm set-point, a high-pressure alarm will be set after the pressure alarm
delay period has expired.
If the pressure in this period decreases below the high-pressure alarm set-
point, the alarm is cancelled.
Warning Default: 2.3 bar
Range: 0-2.5 bar
Alarm Default: 2.5 bar
Range: 0-3 bar
