Etatron DLX - Troubleshooting DLX pH-RX;MBB Series Pumps; Mechanical Faults Troubleshooting; Electrical Faults Troubleshooting

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ENGLISH
9.0 - TROUBLE-SHOOTING COMMON TO DLX pH-RX/MBB SERIES PUMPS
9.1 - MECHANICAL F AU L TS
As the system is quite robust there are no apparent mechanical problems. Occasionally there might be a loss of
liquid
from the nipple because the tube nut has loosened, or more simply the discharge tubing-has broken.
Ve ry rarely there may be losses 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 fig. 10), when re-mounting
the pump head ensure that the screws are replaced properly, along with “O” ring.
After repair, the metering pump will need to be cleaned of additive residues which can damage the pump cas-
ing.
z 1 z
THE METERING PUMP GIVES PULSES BUT THE ADDITIVE IS NOT INJECTED
a. Dismount the suction and discharge valves, clean them and replace, see position (fig. 10). Should the valves be
swollen,
check valves material against our chemical resistance compatibility char t and fit cor rect valves.
Standard
valves are Viton. Upon request ball check valve, can be supplied.
b. Check clogging of the filter.
A TTENTION: When removing the metering pump from the plant, be carefu l as there might be some residual
additive in the discharge hose.
9.2 - ELECTRICAL F AU L TS
z 1 z
ALL LEDS OFF , THE PUMP DOES NOT PULSE
Check power supply (socket, plug, power switch ON ), if the pump doesn’t work contact manufacturer Customer
Ser vice, Dealer or Distributor.
z 2 z
GREEN LED (POWER) ON, RED LED (PULSE) OFF , THE PUMP DOES NOT PULSE
Check that the pump is not in Alarm (yellow LED flashing, on display LEVEL has appeared), verify the calibration's
parameters. If the pump doesn't work contact Manufacturer Customer Service, Delear or Distributor.
z 3 z
PUMP PULSES ARE NOT CONST ANT
Check that supply voltage is within +/- 10% of rated voltage.
z 4 z
THE DOSING PUMP GIVES ONL Y ONE PULSE
Disconnect the equipment and contact manufacturer Customer Ser vice, Dealer or Distributor.
DosingPump.ir