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8
17.0 – TROUBLE-SHOOTING FOR CTRL2 SERIES
Operator must always protect itself w hen handling hazardous feed chemicals. Use googles and
protectiv e clothing and follow the safety information sheets of chemical manufacturer.
When remov ing the metering pump from the plant, be careful as there might be some residual
additiv e in the discharge hose.
- Due to robust design the pump is quite robust therefore there are no apparent mechanical problems.
- In case of leakage from nipples, check tube nut tight setting.
- Diaphragm rarely breaks (made of pure PTFE synthesized), however check diaphragm-pump head o-ring.
- Occasionally there might be a loss of liquid from the nipple because the tube nut has loosened, or more
simply the discharge hose has broken. Very rarely there may be losse s caused by the breakage of the
membrane, or by the membrane seals in which case they have to be replaced by disassembling the four
screws of the pump head, when re-mounting the pump head ensure that the screws are replaced properly,
properly, along with “O” ring.
- re-tighten liquid end screws after 24 hours in operation.
- After repair, metering pump will need to be cleaned of additive residues which can damage pump casing.
TROUBLE-SHOOTING QUICK VIEW
PROBLEM
CAUSE
ACTION TO TAKE:
1
⇒
GREEN LED LIT
AND RED LED
FLASHING,
DOSING
PUMP PULSES BUT
ADDITIVE IS NOT
INJECTED
cause 1: diaphragm rupture and/or
pump head o-ring is not sealing
because worn out or not compatible
with liquid.
a. Dismount the suction and discharge
valves, clean them reinstall them or replace
(pump head views in the following pages). In
case of using LIP type valves and should the
valves be swollen, check valves material
against our chemical resistance compatibility
chart and fit correct valves.
b. Check clogging of the filter
c. Check injection valve condition
d. Check system pressure
cause 2: chemical can produce
crystalline deposits in the hydraulic
parts or clogging the filter.
2
⇒
GREEN LED LIT
AND RED LED
FLASHING,
PUMP
PULSES BUT PUMP
IS NOT PRIMING (NO
LIQUID SUCKED)
a. Dismount the suction and discharge valves, clean them and replace, see position
(fig.10) and follow the same point as above point 1.
b. In case of priming difficulties: use a normal syringe to suck liquid from the
discharge nipple while the pump is in operation (ai r bleed valve closed), continuing
until you actually see the liquid rise in the syringe. Use a short piece of suction PVC
hose to connect the syringe to the discharge nipple (see photo sequence below)
cause2: fuse blown or defective. Also a
possible voltage spike higher then pump
range has blown fuse or damaged pcb.
Disconnect the pump from power supply, check the
fuse and if blown or defective change it with same
type or contact manu facturer Customer Service,
Dealeror Distributor. CTRL2 series are equipped
with a
MICROFUSE MT 1A slow.
DO NOT REPLACE FUSE WITH OTHER TYPES: it will severely damage pump and other equipment !!!
In case of severe and continuous voltage fluctuation, the fuse could blow continuously. In this case contact
manufacturer Customer Service, Dealer or Distributor for a correct solution.
Insert syringe hose in
place of discharge hose
ensuring that the same
is NOT connected to
injection valve.
Close pump head air bleed valve.
Start pump pulses above 50% rate and start sucking with
syringe until the liquid start to come up costantly in syringe
hose then stop the pump and take out syringe hose.
Reinsert discharge
hose ensuring that the
same is connected to
injection valve and
start the pump.
3
⇒
ALL LED
DISPLAYS ARE OFF,
THE PUMP DOES
NOT PULSE
cause 1: power supply cable not
plugged or wrong power supply or
plug not wired correctly.
Check power supply (socket, plug, power
switch ON), if the pump doesn’t work contact
manufacturer Customer Service, Dealer or
Distributor. Ensure system is well grounded,
Содержание CTRL2-5L
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