Kamstrup MULTICAL 41 Manuale utente
Installation
and User’s Guide
MULTICAL® 41
Water Meter
www.kamstrup.com
MULTICAL® 41
English
INSTALLATION
Kamstrup A/S
Industrivej 28, Stilling, DK-8660 Skanderborg
TEL: +45 89 93 10 00 · FAX: +45 89 93 10 01
info@kamstrup.com · www.kamstrup.com
22
1. General information
Please read these instructions before installing the heat meter.
Kamstrup’s guarantee obligations do not apply in case of incorrect
installation.
Please note the following installation requirements:
Max. inlet pressure for meters with screw-joints is 16 bar.
1.1 MID designations
The meter is approved according to MID (OIML R49).
Rated operation conditions/measuring ranges:
Temperature of medium in flow sensor: 0.1°C…30°C
Mechanical environment: M1 (fixed installation with minimum
vibration)
Electromagnetic environment: E1 (Domestic and light industrial).
Signal cables from the meter must be separated by at least 25 cm
distance to other installations.
Climatic environment: The installation shall be made in
non-condensing environments and in closed location (indoor).
The ambient temperature must be within 5…55°C.
Maintenance and repair: The water supplier is allowed to change
communication module and battery. The flow part must never be
separated from the calculator. All repairs require a following
re-verification on an accredited laboratory.
Battery for replacement: Kamstrup type 66-00-200-100.
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LCD display
Type label
Optical interface
Pushbutton
Accumulated
flow since latest
reset
Current flow per
duration
Number of
operating hours
2. Information codes “E”
MULTICAL® 41 constantly monitors a number of important functions.
If a serious error occurs in the metering system or in the installation,
an “E” appears in the left side of the display and an information code
can be read by activating the front key until an “E” appears in the
right side of the display.
Information
code
Description
000 No irregularities
016 Air in the flow sensor
128 Battery replacement (12 years’ lifetime)
44
3. Mounting
Before mounting the flow part (flow sensor), flush the system
thoroughly and remove protection plugs/plastic membranes from the
flow sensor.
The flow direction is indicated by an arrow on the side of the flow
sensor.
To prevent cavitation the operating pressure at the flow sensor must
be min. 1.5 bar at Q3 and min. 2.5 bar at Q4.
The flow sensor must not be exposed to pressures below ambient
pressures (vacuum).
Flowrate Operating conditions
Q1Minimum flow rate Lowest flow rate, at which it is
required that the water meter
operates within the maximum
permissible error range.
Q2Transitional flow
rate
Flow rate, which occurs between
the permanent flow rate Q3 and
the min. flow rate Q1 where the
tolerance changes.
Q3Permanent flow rate Highest flow rate within the
operating range.
Q4Overload flow rate The highest flow rate, at which the
flow sensor can operate for short
periods within the tolerance range.
55
3.1 Straight inlet
MULTICAL® 41 requires neither straight inlet nor outlet to meet
the Measuring Instruments Directive (MID) 2004/22/EC and
OIML R 49. Only in case of heavy flow disturbances before the
meter will a straight inlet section be necessary.
3.2 Installation angle
The flow sensor can be
mounted vertically,
horizontally or at an angle.
The flow sensor can be
turned upwards to max. 45°
and downwards to max. 90°
in relation to the pipe axis.
Do not mount the
flow sensor with the
plastic box upwards.
66
3.3 Mounting the calculator
41 mm
90 mm 27 mm
126 mm30 mm
Wall mounting of MULTICAL® 41.
MULTICAL® 41 mounted on
ULTRAFLOW®, by means
of angle fitting 3026-252.
77
4. Power supply
MULTICAL® 41 can be power supplied by a built-in lithium battery, a
24 VAC internal mains module or an internal 230 VAC mains module.
The two wires from the battery or mains module are to be mounted in
terminals 60 and 61 of the calculator.
The polarity must be correct; connect the red wire to terminal no.
60 (+) and the black wire to terminal no. 61 (-).
4.1 Battery supply
Connect MULTICAL® 41 to a lithium battery, D-cell. The battery is
marked with installation year, e.g. 2008, and production date.
Obtain optimal battery life by keeping the battery temperature below
30°C.
The voltage of a lithium battery is almost constant throughout the
entire lifetime of the battery (approx. 3.65 V). Therefore, it is not
possible to determine the remaining capacity by measuring the
voltage.
The battery cannot be and must neither be charged nor hortcircuited.
Used batteries must be handed in for approved destruction e.g. at
Kamstrup A/S.
4.2 Mains modules
The modules are in protection class II and are connected via a
two-wire cable (without earth) through the cable bush of the
calculator placed at the top left corner of the connection unit.
Use connection cable with an outside diameter of 5–10 mm and
secure correct dismantling as well as correct mounting of the cable
relief.
Max. permitted fuse: 6 A
National installation regulations must be obeyed.
88
Black
Red
24 VAC
Use a transformer,
e.g. type 66-99-403
for a 24 VAC supply
module.
NB! This module
cannot be supplied
from 24 VDC.
Black
Red
230 VAC
This module is used for
direct mains connection.
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