Ordinary Maintenance; Routine Maintenance - ETATRON D.S. eOne MA Notice D'installation, Emploi Et Entretien

How to Connect Water Meter: Connect the water meter wires to pins 1 and 2. Each signal from the water meter
corresponds to one injection of the dosing pump
How to Connect Level Switch: Connect level switch wires to pins 3 and 4.The pump alarm will activate when the tank
level exceeds the minimum value for longer than 5 seconds. The alarm delay prevents false alarms caused by fluid level
perturbations.

ORDINARY MAINTENANCE

An Ordinary and accurate maintenance with a programmed check, guarantee the preservation over time and the proper
functioning of the systems. Therefore we recommend that the user follow our advice and maintenance of a service contract
and assistance programmed with one of our Technical Support Center.
Check at least every 6 months functioning of the pump. In case of intensive use of the metering pump, you should
increase the frequency of these controls.
Check inside the pump head the presence of deposits, in this case they can be removed by disassembling the piece and
washing it with water. If the deposits are difficult to remove, it is recommended to dip the part in an aqueous solution of
hydrochloric acid, then rinse it with water.
Check regularly the seals of valves, diaphragm and any other seals, because as part of normal wear and tear may be
subject to deterioration.
To replace the membrane remove the 4 screws, unscrew the membrane and replace the O-Ring, reassemble all pieces
making sure to tighten the screws in a balanced way (screw alternately cross respecting the prescription of torque.
Check and replace the sealing of the injection valve as it may be subject to deterioration due to wear and serving as a
check valve in the pump may cause a return of the product dosed.
Warning: When removing the pump from the plant act carefully removing the tube from the discharge nipple, as
it could leak out the additive from the tube. Again, if the casing is in contact with the additive must be cleaned.
Warning: When the power supply is deactivated, the pump may emit one or more pulses, so before you
disconnect the tubes make sure that the pump is turned off completely.

ROUTINE MAINTENANCE

Thorough routine maintenance, together with a scheduled inspection, ensures preservation and good functioning of the
systems over time.
We therefore recommend you follow our routine maintenance advice and enter into a programmed service and assistance
contract with a trusted Technical Support Centre.
Please also note that the timing of the maintenance listed below, are to be considered solely for a theoretic purpose, as they
shall vary depending on several factors: type of system, type of product metered, the environment where the pump is
installed, etc.
Before performing any maintenance or cleaning operations on the metering pump, you must:
1) Check that is disconnected from the electric power supply (both polarities) by pulling the connection cables out of the
mains contact and by separating the contacts by at least 3 mm.
2) Eliminate any remaining pressure from the pump head and from the flow pipe in an appropriate manner (very
carefully).
In the event of leakage from the pump hydraulic system (breakage of a valve or a pipe), it must be stopped and the flow
pipe must be depressurised taking all necessary precautions (gloves, goggles, protective clothing).
ENGLISH 31