Start-up |
Operation & Maintenance Instructions
FLOWCON | 15
Setting of switch point with closer (with external electronic evaluation it is
possible to apply a closing contact)
1. Switch off pump and completely turn in contact screw () until reed contact closes
(LED “Flow” shwos green).
. Turn out contact screw () again by three rotations (LED “Flow” off)
3. Switch on pump and close bypass valve (1) slowly until LED “Flow” blinks during each
dosing stroke To ensure a complete venting of the float channel, let the pump operate
for a few minutes until air bubbles are no longer present. If the LED does not blink
with the bypass valve completely closed, turn in contact screw slightly.
4. Turn out contact screw () slowly until LED just stops blinking.
5. Turn in contact screw again by 1/ or 3/4 revolution and tighten lock nut (3) (LED
blinks).
6. To check the switch point, reduce stroke length of the pump by approx. 10-0% (LED
does not blink anymore).
The switch point is thus set so that the flow rate of the pump can be monitored. If the
number of tolerable faulty strokes is exceeded due to a malfunction of the dosing pump,
the alarm relay of the electronic evaluation unit switches and the „Alarm“ LED shows red.
After error elimination the Reset key must be operated.
IMPORTANT!
If a reliable adjustment of the switch point is not possible, it is recommended to remove
the spring above the float element / from the float channel (refer to section 2. Installation)
6.1 Maintenance
The FLOWCON is self-monitoring. This means, if for example there is a blockage in the
medium wetted bore an alarm will be triggered because the reed contact is not being
activated.
A leackage inspection concerning the connections and pipes is regularly, preferably half
yearly, to undertake. Especially when dosing aggressive chemicals or chemicals which
make the floater adhere tho the bore, it is recommended to shorten the inspection inter-
vals.
Please note: when taking the FLOWCON appart it is important that all pressurised lines are
relieved of their pressure. (also see chapter 1 saftey instructions)
IMPORTANT!
