SIGMA S2Ba - Manual (Page 13)

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Page 13 Pr o Minent ®
Safety devices
The following safety notice must be affixed to the pump (with PP, PC and PV liquid ends, acrylic
glass cover, ...)
Because of danger of electrostatical
ignition use damp cloth only
for wiping plastic parts!
ATTENTION
EC conformity declaration / certificates
The EC conformity declaration for pumps for explosion-threatened workplaces is supplied with
the pump (the copy of the EC conformity declaration for the pump itself does not apply to pumps
designed for explosion-threatened workplaces).
The EC conformity declarations, the EC series prototype test reports and the operating manuals
for the individual components are also supplied with the pump.
1.2 General notes
WARNING
• The equipment/devices may only be used for their intended purpose.
• ProMinent ® metering pumps must not be assembled with parts which are not tested and
recommended by ProMinent otherwise this can lead to injury to persons and damage to
property for which no liability will be accepted!
• Pumps must be accessible at all times to facilitate operation and maintenance. Access
points must not be obstructed or blocked!
• Before carrying out any maintenance and repair work always drain off and flush out the
liquid end first if hazardous or unknown metered media are used!
• When metering hazardous or unknown liquids, always wear safety clothing (safety
goggles, gloves, ...) when working on the liquid end!
• You must observe the guidelines in this operating instructions manual and the ”General
operating instructions manual for ProMinent ® motor-driven metering pumps and hydraulic
accessoires” on assembly, installation and maintenance!
1.3 Notes on installation, start-up and operation
WARNING
• The metering pump can contain water residue in the liquid end as the result of testing at
the factory!
If handling media which must not come in contact with water, all traces of water must be
removed from the liquid end before start-up! For this purpose, turn the pump through
180˚ and drain off the liquid end then flush with a suitable medium from above via the
intake connection!
• Do not connect mains voltage to the control cable!
• When operating the metering pump against a closed shut-off element on the pressure
side or in the event of pressure peaks during the metering stroke, the system pressure
can reach a multiple of the maximum permissible operating pressure that can conse-
quently cause the pressure line to burst!
• To avoid this situation, an overflow is recommended for the purpose of limiting the
maximum permissible operating pressure of the pump or system.
• Do not connect a metal bypass line to the overflow valve on the PVT delivery unit! This
could cause cracks in the delivery unit!
Notes on safety of ProMinent ® metering pumps