multical 402 en

8/2/2019 Multical 402 En

1/24

MULTICAL 402User Guide

www.kamstrup.com


2/24

MULTICAL402Energy Measurement

MULTICAL 402 functions in the following way:

The flow meterregisters the amount of district heating water inm (cubic metres) circulating through the heating system.

The temperature sensors placed in forward and return pipesregister the cooling, i.e. the difference between input andoutput temperatures.

MULTICAL 402 calculates consumed energy based on volumeof district heating water and cooling.

Readings

When the top front key is activated, a new readingappears.

The lower front key displays historical readings andaverage values.

Four min. after the latest activation of the front key the meterautomatically switches to consumed energy.

www.kamstrup.com


3/24

MULTICAL402

English

US

ER

S

G

U

ID

E

Kamstrup A/SIndustrivej 28, Stilling, DK-8660 SkanderborgTel: +45 89 93 10 00 Fax: +45 89 93 10 [email protected] www.kamstrup.com


4/24

MID designations

Permissible operating conditions / measuring rangesCalculator q: 2C160C D: 3K150K

Temperature sensor set q: 10C150C D: 3K140K

Flow sensor (heat meter) q: 15C130C

Also available as cooling meter with temperature range 2...50C or as

combined heat/cooling meter with temperature range 2...130C, with-

out MID approval however.

Mechanical environmentM1 (fixed installation with minimum vibration).

Electromagnetic environmentE1 (housing/light industry). The meters control cables must be drawn

at min. 25 cm distance to other installations.

Climatic environmentMust be installed in environments with non-condensing humidity as

well as in closed locations (indoors). The ambient temperature must be

within 555C.

Maintenance and repairThe district heating supplier can replace communication module, bat-

tery and temperature sensor set. The flow sensor must not be separated

from the calculator

Other repairs require subsequent reverification in an accredited labora-

tory.

MULTICAL 402, type 402-W and 402-T must be connected to a tem-

perature sensor set type Pt500.

MULTICAL 402, type 402-V must be connected to a temperature sensor

set type Pt100.

Battery for replacementKamstrup type 402-000-2000-000 (D-cell) or 402-000-1000-000

(2 x AA-cells).

2


5/24

Contents

1 General information 4

2 Mounting of temperature sensors 4

2.1 Pocket sensor set 52.2 Short direct sensor set 6

3 Information codes INFO 7

4 Mounting of flow sensor 8

4.1 Mounting of MULTICAL 402 10

4.2 Installation examples 11

5 Mounting the calculator 12

5.1 Compact mounting 12

5.2 Wall mounting 12

6 Power supply 13

6.1 Battery supply 13

6.2 Mains modules 13

7 Testing the function 14

8 Electrical connection 14

9 Plug-in modules 15

9.1 Pulse inputs 15

9.2 Pulse outputs 15

9.3 Data + pulse inputs, type 402-0-10 169.4 Data + pulse outputs, type 402-0-11 16

9.5 M-Bus + pulse inputs, type 402-00-20 17

9.6 M-Bus + pulse outputs, type 402-00-21 17

9.7 Wireless M-Bus, type 402-0-30 17

9.8 Radio, type 402-0-40 and 402-0-41 18

9.9 Radio+ pulse inputs, type 402-0-42 and 402-0-44 18

9.10 Radio+ pulse outputs, type 402-0-43 and 402-0-45 1810 Setup via front keys 19

3


6/24

1. General informationRead this guide before installing the meter.

In case of incorrect mounting Kamstrups guarantee obligations no

longer apply.

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, Kamstrup

sensor set type DS: PN16

- Pressure stage, Kamstrupstainless steel pockets: PN25

At medium temperatures above 90C in flow sensor, use of flange me-

ters is recommended, and the calculator should be wall-mounted.

2. Mounting of temperature sensorsThe temperature sensors used to measure flow and return temperatures

are a matched sensor set that must never be separated.

MULTICAL 402 is by default supplied with mounted temperature sen-

sors. According to EN 1434 the cable length must not be changed. If

necessary, sensors must always be replaced in pairs.

One sensor is marked with a red sign and must be installed in the flowpipe. The other sensor is marked with a blue sign and must be installed

in the return pipe (see paragraph 8, page 14).

4


7/24

2.1 Pocket sensor set

Preferably, sensor pockets must be mounted in tee-pieces or in 45 lat-

eral Y-pieces. The tip of the sensor pocket must point against the flow

direction and be placed in the middle of the water flow.

Temperature sensors should be inserted to the bottom of the pockets.

If a short response time is required, non-hardening heat conducting

paste can be used.Push the plastic sleeve on the sensor cable into the sensor pocket and

secure the cable with the enclosed M4 sealing screw. Fasten the screw

with your fingers only. Seal the pockets using seal and locking wire.

5


8/24

2.2 Short direct sensor set

Short direct sensors can be mounted in special ball valves or in special

tee-pipes, both with threads up to R1 and built-in M10 union for the

short direct sensor.

For mounting in existing heating installations with standard angle teesKamstrup A/S can supply R and R brass nipples fitting the short

direct sensors.

Short direct sensors can also be fitted directly into all Kamstrups

ULTRAFLOW variants with G and G1 threads on the meter case.

Fasten the brass unions of the sensors lightly (approx. 4 Nm) using a 12

mm face wrench and seal the sensors with seal and locking wire.

3. Information codes INFOMULTICAL 402 constantly monitors a number of important functions. If

there is a serious error in the measuring system or installation, a flash-

ing INFO is displayed, and an info code can be read by activating the

top front key until the measuring unit displays INFO. The info code is

visible as long as the error exists, unless the meter has been specially

configured for manual reset of info codes. When an info code hasexisted for an hour, it is saved in the info log.

6


9/24

InfoCode

Description Response time

0 No irregularities -

1 Supply voltage has been interrupted -

8 Temperature sensor T1 outside measur-ing range

multical 402 en

Documents