Pump Installation; Electrical Connection - ETATRON D.S. eOne MF Normas De Instalación, Uso Y Manutención

If you encounter abnormalities or warning signals, stop immediately. Only start work again when you are
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absolutely sure that you have removed the cause of the problem.
Do not install the pump in hazardous locations or in areas at risk of fire or explosion.
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Avoid electrical hazards and fluid leakage. Never use a damaged or defective pump.
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Pump installation

Install the pump away from heat sources and in a dry place at a maximum ambient temperature of 40 ° C. The minimum
temperature, not lower however than 0 ° C, depends on the type of liquid to be metered, which must always remain in a liquid
state. To fasten the pump use the supplied screw anchors, or those most suited to the support type chosen.
The pump can be installed either above or below the liquid level in the tank. Usually in the case of installation above the
tank, limit the suction height to within 1.5 metres of the liquid level. (see fig. 2a). For liquids that generate aggressive vapours,
do not install the pump into direct contact with the fumes and adopt the necessary precautions to prevent early deterioration
of the equipment.
In the case of installation below, i.e. with the pump positioned below the liquid level of the tank (Fig. 2b), siphoning may
occur. Periodically check the functionality of the injection valve, as excessive wear may lead to the additive falling
into the plant even with the pump turned off. If the problem persists, fit a back pressure valve C suitably calibrated
between the metering pump and the injection point as shown in Fig. 2b

Electrical connection

Comply with the rules in force in the various countries with respect to the electrical installation. If the power cable is
devoid of a plug, the equipment must be connected to the mains supply via a double pole isolator switch with a minimum
distance between contacts of 3 mm. Before accessing any of the connection devices, all supply circuits must be
interrupted (Fig. 6).
Fig. 2a
Fig.3 – Electrical Connection
Fig. 2b
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