Engelmann
T h e h e a t m e t e r s p e c i a l i s t s
®
Engelmann Sensor GmbH, Rudolf-Diesel-Straße 24-28 , 69168 Wiesloch-Baiertal, Germany
Phone.: +49 (0)6222-9800-217 , Fax: +49 (0)6222-9800-50, E-Mail: [email protected], www.engelmann.de
Article-No. 1080700010 - 2011-04-01
Page 1
Calculator with Ultrasonic
DE-09-MI004-PTB018 / 22.72/09.01
Installation and Operating Instructions
4.1 Safety instructions
–
Look out for sharp edges (pipes,
fl
anges).
–
Installation and deinstallation should only be carried out by
quali
fi
ed technical personnel.
–
Mounting and dismounting may only be carried out without
pressure in the heating or cooling system.
–
After installation a hydraulic pressure test should be carried out
using cold water to check for leaks.
–
For safe operation, the instrument must be used only under the
stated operating conditions (see section 15: Technical Data).
In addition, the guarantee only applies if the allowed operating
conditions have been adhered to.
–
The security seals may not be damaged, otherwise the guaran-
tee is no longer valid.
–
Protection against lightning is not guaranteed; lightning protec-
tion must be implemented at the installation site.
4 Mounting the Flow Sensor
1 Application and Function
The
S
ENSO
S
TAR
®
2C US
Ultrasonic Meter is designed for the
measurement of heat and cooling energy. The connected
fl
ow sen-
sor must be installed in the return
fl
ow. Optionally, the meter can be
set in the factory to measure
fl
ow volume in the forward
fl
ow (state
when ordering – not for cooling meters!)
.
The instrument has an optical interface for read-out and parameteri-
zation. Optionally, the instrument can be equipped at the factory with
an M-bus interface, up to two pulse outputs (for energy and volume)
or alternatively with two pulse inputs. It is also possible to power the
instrument using a power pack (not available in combination with
M-bus power supply.)
4.2 General information on the fl ow sensor
–
Be careful not to pick up the
fl
ow sensor on the plastic housing.
Always pick up and carry the sensor on the threaded or
fl
anged
connections.
–
All cables must be laid at a minimum distance of 20 cm to high-
voltage current cables.
–
If more than one sensor is being installed in a unit, care must
be taken to be sure that all the meters have the same installati-
on conditions.
–
Overpressure must be applied in order to avoid cavitation in the
complete measurement range; this means at least 1 bar up to
qp and approx. 3 bar at overload qs (speci
fi
cations for approx.
80°C).
–
The
fl
ow sensor left the factory in conformance with all ap-
plicable safety regulations. Calibration, maintenance, repairs
and the exchange of parts may only be carried out by quali
fi
ed
technical personnel who are familiar with the dangers involved.
Further technical support can be provided by the manufacturer
upon request. Veri
fi
cation seals on the
fl
ow sensor may not be
damaged or removed – otherwise the guarantee and veri
fi
ca-
tion of the instrument no longer apply!
4.3 Technical data of the fl ow sensor
–
Environmental class A (EN1434), for indoor installation
–
Mechanical class M1*)
–
Electromagnetic class E1*)
*) as per Measurement Instrument Directive 2004/22/EU
2 Scope of Delivery
•
Calculator
S
ENSO
S
TAR
®
2C US
•
Installation kit: 1 O-ring; 5 sel
fl
ock seals + 5 sealing wires;
2 2 dowels for direct screw mounting (if this
technique is used - see section 9.3)
•
Installation and Operating Instructions
•
2 gaskets for the
fl
ow sensor
3
General Information
All details and speci
fi
cations listed in instrument data sheet or in
these installation and operating instructions must be adhered to:
• The valid statutory provisions and standards for the application of
instrument for the measurement of heat energy are: EN1434 parts
1+6 and the Directive 2004/22/EC with annexes I and MI-004.
• The instrument may only be installed or exchanged by quali
fi
ed
and authorized technical personnel.
• The regulations for electrical installations must be adhered to
• The applicable veri
fi
cation regulations and periods for the country
in which the instrument is to be installed must be observed.
• The instrument left the factory in conformance with all applicable
safety regulations.
• The instrument must be stored and transported frost-free. The
temperature during storage or transport may not fall below 1°C.
The relative humidity during storage and transport may not be
more than 80%.
• The instrument identi
fi
cation and the seals required for veri
fi
cation
of the instrument must not be damaged or removed – otherwise
the guarantee and veri
fi
cation of the instrument no longer apply!
• To clean the instrument (only if necessary) use a slightly moist
(not dripping wet!) cloth.
• To protect against damage and dirt the instrument should only be
removed from the packaging directly before installation.
• All electrical connections of the instrument must be laid at a
minimum distance of 50 cm
to sources of electromagnetic
interference (switches, controllers, pumps, etc.)
• All instrument connections must be laid at a
minimum distance
of 10 cm
to other current-carrying wires.
