Operating Instructions FMC 19 / 60
Attention!
If the material of the flow meter is not resistant to the liquid to be
transferred, it must not be used.
> Observe the chemical resistance and internal instructions.
Note
> Always replace defective parts.
> Only use genuine spare parts.
> When returning the pump for repair, it must be accompanied by
the decontamination certificate (download at www.flux-
pumps.com).
2.5 Safety information for hazardous areas
> Avoid electrostatic charges when installing and operating this
equipment.
> Only clean with a damp cloth.
> Only clean outside the hazardous area.
> When using a PP, ETFE or PVDF flow meter in a hazardous
area, bridge the flow meter with an earth strap.
> When using a metal design of flow meter in a hazardous area,
carry out extensive and definitive potential equalisation.
> The hose connected to the outlet of the drum pump hose must
not exceed a resistance of 10
6
ohms between the hose ends.
Only use hose lines with conductive screw fittings (cf. TRbF 50
Appendix B. (R < 10
6
Ω)
If motors and/or valves are to be switched with the flow meter,
a switching amplifier (FSV) is needed.
The use of the electronic analysis unit FLUXTRONIC
®
in hazardous areas means that
it is necessary to select a signal interface permitted in hazardous areas. This is not the
case with all available switching amplifiers. The NAMUR* interface is a proven one and
meets all of the above requirements. (* NAMUR = Normenausschuss Mess- und Regel-
technik / committee for measuring and control techniques in the chemical industry)
If you are using your own switching amplifier, it is imperative that you
note the certificates of conformity of the display electronics and the
switching amplifier you are using.
The switching amplifier and the external units connected to it should
only be installed, operated and serviced by trained and qualified per-
sonnel.
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