12
13
When the
Shift
button (7) is pressed and held down the
pump operates with full power regardless of the power
adjustments and the position of the limit switch. Can be
used e.g. for removing air from the system.
The
Pump
button (8) is used to start or stop the
pumping. When the pump is switched on the signal light
”Pump” (9) is on. The power may be adjusted steplessly
with the potentiometer (2).
If the limit switch gets activated the signal light ”Cut”
(10) is switched on and the pumping stops. As the limit
switch is released the signal light is switched off and the
pumping continues according to the adjustments.
FLOW ALARM
When the flow lowers below the alarm level the
controller gives the alarm signal. The buzzer goes off and
the text ”FLO” flashes on the screen. If the increase of the
flow does not reach the hysteresis level in ten seconds,
the controller automatically stops the pump. In this
case the buzzer goes out and the text ”FLO” stays on the
screen. Usually the alarm is caused by the draining of the
container. If there is still preservative left in the container,
see chapter “Trouble shooting” (p. 20).
4.2 Default settings
PULSE RATE
The pulse rate indicates the amount of pulses in one
litre of liquid. The pulse rate has been calibrated in the
factory. If the flow calculators of the controller do not
correspond to the actual consumption, the pulse rate
can be adjusted as follows:
Check the current pulse rate. Reset the Trip calculator to
zero and pump plenty of liquid (e.g. 100 litres) through.
The new pulse rate can be calculated by comparing the
amount calculated by the controller to the the actual
amount using the following formula:
After changing the pulse rate, the reading of the Trip
calculator should indicate the actual amount of litres
pumped.
THE LEVEL OF FLOW ALARM
The default setting of the flow alarm is 1,5 l/min. If the
flow decreases below the set level for more than five
seconds, the alarm will be activated.
The new
pulse rate
The amount calculated by the controller
The actual amount of litres pumped
The current
pulse rate
×
=
