Routine Maintenance; Unscheduled Work In The Event Of A Breakdown; Mechanical Faults; Electrical Faults - ETATRON D.S. eOne MF Notice D'installation, Emploi Et Entretien

ROUTINE MAINTENANCE

A thorough and routine maintenance, together with a scheduled inspection, ensures long preservation and good
functioning of the systems We therefore recommend you follow our routine maintenance advice and to enter into a
programmed service and assistance contract with one of our trusted Technical Support Centres.
At least every 6 months check the operation of the pump. In the case of intensive use of the metering pump, it is
recommended to increase the frequency of checks.
Check that there are no deposit formed in the heads, if so they can be removed by disassembling the piece and
thoroughly washing it with water. For difficult deposits, removal is recommended by immersing it in an aqueous solution of
hydrochloric acid, then rinsing the piece thoroughly with water.
Regularly check the seals of the check valves, the diaphragm and all the seals, because they can deteriorate over time
as part of normal wear and tear.
To replace the diaphragm unscrew the 4 screws, unscrew the diaphragm, replace it together with the O-Ring, put
everything back in, making sure to tighten the screws in a balanced manner (alternatively tighten crosswise with the
prescribed torque (see Annex 1))
Regularly check and replace the sealing of the injection valve, because it could be subject to deterioration due to use
and as it performs a retainer function it may result in a return of the metered product in the pump.
Warning: When removing the metering pump from the plant, exercise caution when removing the pipe from the
discharge connection, as additive residue in the pipe may spill out. Even in this case, if the case comes in contact
with the additive it must be cleaned.
Warning: when the power supply is switched off the pump may issue one or more pulses, therefore before
removing the pipes make sure that the pump is fully switched off.

UNSCHEDULED WORK IN THE EVENT OF A BREAKDOWN

All components supplied by us are chosen and tested in accordance with strict selection principles and they therefore
provide, over a long period of time, reliability and functionality to our equipment.

MECHANICAL FAULTS

Given the robustness of the system, mechanical failures do not occur. Sometimes liquid may leak from a loose
connection or nut, or more simply by the rupture of the injection tube. Rarely can leaks be caused by the rupture of the
membrane or by the wearing of the membrane seal itself. These components, in this case, must be replaced by removing the
four screws on the pump body, refitting these screws, and tightening them uniformly with a maximum torque of 180 to 200 N *
cm. Once you have resolved the leak, the pump must be cleaned of any residual additive, which if left to stagnate, it could
deteriorate the outer shell and the parts next to the electromagnets.
THE METERING PUMP GIVES IMPULSES BUT DOES NOT INJECT ADDITIVE INTO THE PLANT

ELECTRICAL FAULTS

NO LED LIT, THE PUMP DOES NOT INJECT.

Remove the suction and discharge valves, clean them and replace them in the same position. In case you
experience a bulging of the seals, check the degree of chemical compatibility with the additive metered by the
pump.

Check the clogging of the bottom filter;

Check the injection valve.

Check that the pump is correctly powered (socket and plug) If the pump remains inactive, please contact one of our
Customer Service Centres.
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