Proline Promag 51
Safety instructions
Hauser
5
1
Safety instructions
1.1
Designated use
The Promag 51 measuring device described in these Operating Instructions is approved to
OIML R49 and has an EC type-examination certificate according to Measuring Instruments
Directive 2004/22/EC (MID) for use in legal metrological control ("custody transfer") for cold
water (MI-001).
A minimum conductivity of 20
μ
S/cm is required for measuring demineralized water. Fresh water
can be measured as of a minimum conductivity of 5
μ
S/cm.
The Promag 51 is operated with a totalizer display for legal metrological control and, optionally,
with a pulse output for legal metrological control.
The measuring system operates within a temperature range of 0 to +30 °C and can be deployed, for
example, in the supply of drinking water:
• Internal monitoring of delivery pipe network (local water network)
• Calculation of the bill from the main supply pipe (junctions)
• Monitoring of the water source. For example, the amount of ground water (tank inlet points,
incl. pump stations).
• Certification for the amount supplied to the delivery network (tank outlet points).
• Monitoring of the withdrawal and supply of different water works in a supply pipe (overland
supply pipe of a water network).
Resulting from incorrect use or from use other than that designated the operational safety of the
measuring devices can be suspended. The manufacturer accepts no liability for damages being
produced from this.
1.2
Installation, commissioning and operation
Note the following points:
• A Promag 51 measuring system for legal metrological control is protected by seals on the
transmitter or the sensor connection housing from manipulation of parameters relevant to
measuring technology (see Page 72). As a rule, these seals may only be broken by a representative
of the appropriate approval authorities.
• Installation, connection to the electricity supply, commissioning and maintenance of the device
must be carried out by trained, qualified specialists authorized to perform such work by the
facility's owner-operator according to the Measuring Instruments Directive 2004/22/EC (MID).
The specialist must have read and understood these Operating Instructions and must follow the
instructions it contains.
• The device must be operated by persons authorized and trained by the facility's owner-operator.
Strict compliance with the instructions in the Operating Manual is mandatory.
• Hauser is willing to assist in clarifying the chemical resistance properties of parts wetted
by special fluids, including fluids used for cleaning. However, small changes in temperature,
concentration or the degree of contamination in the process can result in changes of the chemical
resistance properties. Therefore, Hauser can not guarantee or accept liability for the
chemical resistance properties of the fluid wetted materials in a specific application.
The user is responsible for the choice of fluid wetted materials in regards to their in-process
resistance to corrosion.
• If welding work is performed on the piping system, do not ground the welding appliance through
the flowmeter.
• The installer must ensure that the measuring system is correctly wired in accordance with the
wiring diagrams. The transmitter must be grounded, unless special protective measures have been
taken (e.g. galvanically isolated power supply SELV or PELV).
• Invariably, local regulations governing the opening and repair of electrical devices apply.
