Dulcodes UV-Desinfektionsanlage
Page 11
Pr
o
Minent
®
Notes on safety of ProMinent
®
metering pumps
1
Notes on safety of ProMinent
®
metering pumps
Notes on safety and important operating notes are divided into classes accompanied with
pictograms. Please familiarize yourself with the following definitions and pictograms.
DANGER
Danger to life or risk of serious injury!
WARNING
Danger of injury or serious damage to the device!
NOTICE
These situations require complete attention!
IMPORTANT
Information which must be followed!
1.1
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!
1.2
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 consequently 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!
• The bearing cover (1) must be fitted when in operation.
The equipment will not otherwise comply with IP 55 and the bearing will not be
adequately secured!
• The design cover (2) must be fitted when in operation.
Equipment will not otherwise comply with IP 55.
1
2
Fig. 1
