Kamstrup MULTICAL 302 Manuale utente

Kmsrup A/S · Industrivej 28, Stilling · DK-8660 Skanderborg · T: 89 93 10 00 · info@kamstrup.dk · kamstrup.com

Installation and user guide

MULTICAL® 302

2 Kamstrup A/S • 55121351_E1_GB_11.2017

MULTICAL® 302

Informion

Permissible opering condiions / mesuring rnges

Heat meter with approval according to MID and EN1434:

Temperature range q: 2 °C…150 °C DΘ: 3K…130K

Flow sensor (temperature of medium) q: 2 °C…130 °C

Cooling meter with approval according to DK-BEK 1178 and EN1434:

Temperature range q: 2 °C…150 °C DΘ: 3K…85K

Flow sensor (temperature of medium) q: 2 °C…130 °C

Mechnicl environmen

M1 and M2 (ﬁxed installation with minimum vibration and ﬁxed installation with considerable or

high vibration level, respectively).

Elecromgneic environmen

Class E1 (housing/light industry). The meter’s signal cables must be drawn at distance of

minimum 25 cm to other installations.

Climic environmen

Installation must take place in environments with non-condensing humidity and in closed

locations (indoors). The ambient temperature must be within 5…55 °C. The ﬂow sensor may,

however, be installed in condensing environments.

Minennce nd repir

The ﬂow sensor and the temperature sensors must not be separated from the calculator. Repairs

require subsequent reveriﬁcation in an accredited laboratory.

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MULTICAL® 302

Conens

1 In generl 3

2 Temperure sensors 4

2.1 Mounting of temperature sensors 4

3 Mouning of ﬂow sensor 5

3.1 Mounting of couplings and short direct

sensor in MULTICAL® 302 ﬂow sensor 5

3.2 Flow direction 6

3.3 Flow sensor position 7

3.4 Mounting of MULTICAL® 302 ﬂow

sensor 7

3.5 Installation position 8

4 Mouning he clculor 8

4.1 Compact mounting 8

4.2 Wall-mounting 8

4.3 Position of calculator 9

5 Bery supply 9

6 Operionl check 9

7 Informion code 10

8 Communicion 11

8.1 M-Bus 11

8.2 Wireless M-Bus 11

9 Seup 12

9.1 Changing the installation position 13

9.2 Changing the energy unit 14

1 In generl

Red his guide crefully before mouning he energy meer.

In cse of incorrec mouning, Kmsrup's gurnee obligions no longer pply.

When working on he ﬂow sensor in he insllion, here is  risk of ouﬂow of (ho) wer

under pressure.

A  medium emperure higher hn 60 °C, he ﬂow sensor should be shielded from

uninended conc.

Please note that the following installation conditions must be obeyed:

- Pressure stage: PN16/PN25, see marking. The ﬂow sensor marking does not apply to

enclosed accessories.

- Pressure stage

sensor pair type ø5.2:PN16 and PN25

At medium temperatures above 90 °C, wall-mounting of the calculator is recommended.

At medium temperatures below the ambient temperature, MULTICAL® 302 must be wall-mounted.

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MULTICAL® 302

2 Temperure sensors

The temperature sensors used for measuring inlet and outlet temperatures, respectively, consist

of a matched pair of sensors, which must never be separated.

Temperature sensors are mounted in MULTICAL® 302 from the factory. According to EN 1434/OIML

R75, the cable length must not be changed.

The temperature sensor which is mounted in the ﬂow sensor from the factory has no marking on

the sensor cable. The other temperature sensor is marked with a green plastic ring on the cable.

This temperature sensor is mounted in the pipe opposite the ﬂow sensor.

2.1 Mouning of emperure sensors

MULTICAL® 302 comes with a ø5.2 mm Pt500 sensor pair with 1.5 m silicone cable. This sensor

type can be used as direct sensor using a coupling and an O-ring or as pocket sensor to be

mounted in a sensor pocket.

One temperature sensor is mounted in the ﬂow sensor from the factory. The other sensor ought to

be mounted as direct sensor. Alternatively, both temperature sensors must be mounted in sensor

pockets, with reference to the requirement for symmetric sensor installation in EN 1434. If one of

the temperature sensors is not to be mounted in the ﬂow sensor, it must instead be mounted as

close to the outlet of the ﬂow sensor as possible so that the distance between the ﬂow sensor and

the temperature sensor is max 12 cm.

Asymmetrical sensor installation (one direct temperature sensor and one pocket sensor) is

only advisable where national regulations allow this, and never in systems with low differential

temperature and/or low water ﬂow.

Exmple:

If the display shows that the ﬂow sensor is to

be mounted in the inlet pipe, the sensor with

the green plastic ring must be mounted in the

outlet pipe.

Noe: The sensor cables must neither be exposed to jerking nor pulling. Please be aware of this

when binding the cables, and be careful not to pull the binders unnecessarily tight as this

may damage the cables. Please also note that temperature sensors must be mounted from

below in cooling or heat/cooling installations.

No matter where the direct sensor is installed,

it is very important to observe the tolerances

stated in the drawing to the right. If not, the

O-ring may not provide correct sealing.

0,1

Ø 9 -0.1

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MULTICAL® 302

3 Mouning of ﬂow sensor

Prior to installation of the ﬂow sensor, the

system should be ﬂushed and protection

plugs/plastic diaphragms removed from the

ﬂow sensor.

Correct ﬂow sensor position (inlet or outlet)

appears from the display of MULTICAL® 302.

Mounting in inlet pipe is symbolised by ,

whereas mounting in outlet pipe is symbolised

by . The ﬂow direction is indicated by an

arrow on the ﬂow sensor.

SECTION

A-A

SCALE

2 : 1

Tightening by hand

O-ring

Gasket

12 mm

3.1 Mouning of couplings nd shor direc sensor in MULTICAL® 302 ﬂow sensor

The ﬂow sensor may be used in both PN16 and PN25 installations and is available with either PN16

or PN25 or both PN16 and PN25 markings, as required.

Enclosed couplings, if any, are only intended for PN16. Suitable PN25 couplings must be used in

PN25 installations.

In relion o G¾x110 mm, i mus be checked h 12 mm hred lengh is sufﬁcien. See ﬁgure.

Straight inlet: MULTICAL® 302 requires neither straight inlet nor straight outlet to meet the

Measuring Instruments Directive (MID) 2014/32/EU, OIML R75:2002, EN 1434:2007 and EN

1434:2015. A straight inlet section will only be necessary in case of heavy ﬂow disturbances before

the meter. It is recommended to follow the guidelines of CEN CR 13582.

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MULTICAL® 302

3.2 Flow direcion

When the meter is installed in the application,

it must be ensured that the ﬂow direction is

correct.

Flow direction out of the ﬁgure – the direction is

indicated on the ﬂow sensor.

Flow direction into the ﬁgure – the direction is

indicated on the ﬂow sensor.

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MULTICAL® 302

3.3 Flow sensor posiion

A Recommended ﬂow sensor position.

B Recommended ﬂow sensor position.

C Unacceptable position due to risk of air

build-up.

D Acceptable position in closed systems.

E A ﬂow sensor ought not to be placed

immediately after a valve, with the

exception of block valves (ball valve type)

which must be fully open when not used for

blocking.

F A ﬂow sensor must never be placed on the

inlet side of a pump.

G A ﬂow sensor ought not to be placed after a

double bend in two planes.

In order to avoid cavitation, the back pressure at the ﬂow sensor (the pressure at the ﬂow sensor

outlet) must be minimum 1.5 bar at qp(nominal ﬂow) and minimum 2.5 bar at qs(maximum ﬂow).

This applies to temperatures up to approx. 80 oC.

The ﬂow sensor must not be exposed to lower pressure than ambient pressure (vacuum).

3.4 Mouning of MULTICAL® 302 ﬂow sensor

90° 90°

The ﬂow sensor can be mounted horizontally, vertically or at an angle.

90° 90°

The ﬂow sensor can be mounted at 0° and may be turned downwards to 90°.

8 Kamstrup A/S • 55121351_E1_GB_11.2017

MULTICAL® 302

3.5 Insllion posiion

In the upper left corner of the meter display, an

icon indicates if the meter is positioned in the

inlet or outlet pipe.

It is very important to ensure that the meter

is correctly positioned as either inlet meter or

outlet meter. The installation position of the

meter can be changed in the SETUP loop (for

further information, see paragraph 9.1, page

13).

Icon for inlet meter

Icon for outlet meter

4 Mouning he clculor

4.1 Compc mouning

The calculator is mounted directly on the

ﬂow sensor. The calculator is sealed from

the factory, and therefore, further sealing is

unnecessary, unless the seals on the back of

the calculator have been broken.

At the risk of condensation (e.g. in cooling

applications), the calculator must be wall-

mounted.

24 59

4.2 Wll-mouning

The wall ﬁtting (3026-655.A) makes it possible

to mount MULTICAL® 302 directly on an even

wall. Use the ﬁtting as a template to mark and

drill two 6 mm holes in the wall. Then mount

the wall ﬁtting with screws and rawlplugs.

47 8

9Kamstrup A/S • 55121351_E1_GB_11.2017

MULTICAL® 302

4.3 Posiion of clculor

If the ﬂow sensor is installed in a humid or

condensing environment, the calculator must

be mounted higher than the ﬂow sensor.

5 Bery supply

MULTICAL® 302 is battery-supplied with either 1 or 2 A-cell batteries. Optimal battery lifetime is

obtained by keeping the battery temperature below 30 °C, e.g. by wall-mounting.

The voltage of a lithium battery is almost constant throughout the lifetime of the battery (approx.

3.65 V). Therefore, it is not possible to determine the remaining capacity of the battery by

measuring the voltage. Info code 128, however, indicates that the battery voltage is low.

The battery cannot and must not be charged and must not be short-circuited. Used batteries

must be handed in for approved destruction, e.g. at Kamstrup A/S. For further information, see

document about handling and disposal of lithium batteries (5510-408).

6 Operionl check

Carry out an operational check when the energy meter has been fully mounted. Open

thermoregulators and valves to establish water ﬂow through the system. Activate the front key of

MULTICAL® 302 to change display reading and check that the displayed values for temperatures

and water ﬂow are credible values.

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MULTICAL® 302

7 Informion code

MULTICAL® 302 constantly monitors a number of important functions. If there is an error in the

metering system or installation, a ﬂashing “INFO” appears and remains in the display until the error

has been corrected, regardless of the selected display.

“INFO” automatically switches off when the error has been corrected. For indicating current errors

in MULTICAL®, it is possible to scroll to the information code in the display. This is the display in

which “INFO” does not ﬂash, but is shown permanently.

Info code Descripion Response ime

0 No irregularities -

1 Supply voltage has been interrupted -

4 Temperature sensor t2 outside measuring range < 32 s

8 Temperature sensor t1 outside measuring range < 32 s

32 Temperature difference has wrong polarity < 32 s and 0.05 m3

128 Supply voltage too low < 10 s

16 Flow sensor with weak signal or air < 32 s

2Flow sensor with wrong ﬂow direction < 32 s

If several info codes appear at the same time, the sum of info codes is displayed. For example,

if both temperature sensors are outside the measuring range, info code 12 (info codes 4+8) is

displayed.

The info codes 4 and 8 are set when the temperature falls below 0.00 °C or exceeds 155.00 °C. The

info codes 4 and 8 are also set for short-circuited and disconnected sensors.

Noe: If Information code 4 or 8 is present, the meter's energy calculation and volume

accumulation stops.

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