Kamstrup MULTICAL 302 Parts list manual

Technical Description
MULTICAL® 302

MULTICAL® 302
2
Kamstrup A/S · Technical Description · 5512-1334_F1_GB_12.2016

MULTICAL® 302
Kamstrup A/S · Technical Description · 5512-1334_F1_GB_12.2016
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Contents
1General description...............................................................................................................6
1.1 Mechanical construction .............................................................................................................................. 7
1.2 Seals ........................................................................................................................................................... 8
2Technical data.....................................................................................................................10
2.1 Approved meter data ................................................................................................................................. 10
2.2 Electrical data ............................................................................................................................................ 11
2.3 Mechanical data ........................................................................................................................................ 12
2.4 Material ..................................................................................................................................................... 13
2.5 Accuracy .................................................................................................................................................... 14
3Type overview .....................................................................................................................15
3.1 Type and configuration overview ................................................................................................................ 15
3.2 Type number composition.......................................................................................................................... 16
3.3 Config. >A-B< .............................................................................................................................................. 19
3.4 Config. >DDD<, Display coding .................................................................................................................... 20
3.5 Energy overview ......................................................................................................................................... 20
3.6 CONFIG >EFGHHMMM< ................................................................................................................................ 21
4Dimensioned sketches ........................................................................................................23
5Pressure loss ......................................................................................................................25
5.1 Calculation of pressure loss ....................................................................................................................... 25
6Installation .........................................................................................................................26
6.1 Installation requirements ........................................................................................................................... 26
6.2 Installation angle of MULTICAL®302 .......................................................................................................... 27
6.3 Straight inlet .............................................................................................................................................. 28
6.4 Position of calculator ................................................................................................................................. 30
6.5 Operating pressure of MULTICAL® 302 ........................................................................................................ 31
6.6 Mounting in inlet or outlet pipe .................................................................................................................. 32
6.7 EMC conditions.......................................................................................................................................... 33
6.8 Climatic conditions .................................................................................................................................... 33
7Calculator functions ............................................................................................................34
7.1 Measuring sequences ................................................................................................................................ 34
7.2 Energy calculation...................................................................................................................................... 36
7.3 Application types....................................................................................................................................... 37
7.4 Combined heat/cooling metering............................................................................................................... 39
7.5 Max. flow and max. power.......................................................................................................................... 40
7.6 Temperature measurement ........................................................................................................................ 41
7.7 Info codes.................................................................................................................................................. 43
7.8 Data loggers .............................................................................................................................................. 46

MULTICAL® 302
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Kamstrup A/S · Technical Description · 5512-1334_F1_GB_12.2016
8Display functions ................................................................................................................48
8.1 Select display loop .....................................................................................................................................48
8.2 USER loop ..................................................................................................................................................49
8.3 TECH loop...................................................................................................................................................49
8.4 SETUP loop.................................................................................................................................................51
8.5 TEST loop ...................................................................................................................................................54
9Flow sensor.........................................................................................................................55
9.1 Ultrasound combined with piezo ceramics..................................................................................................55
9.2 Principles ...................................................................................................................................................55
9.3 Transient time method................................................................................................................................55
9.4 Signal paths ...............................................................................................................................................57
9.5 Flow limits..................................................................................................................................................57
10 Temperature sensors........................................................................................................58
10.1 Sensor types ..............................................................................................................................................59
10.2 Coupling for direct sensor...........................................................................................................................60
10.3 Installation of direct sensor ........................................................................................................................61
10.4 Blind plug for sensor socket .......................................................................................................................62
11 Power supply ...................................................................................................................63
11.1 Built-in A-cell lithium battery ......................................................................................................................63
11.2 Built-in 2 x A-cell lithium battery .................................................................................................................63
12 Communication................................................................................................................64
12.1 Wired M-Bus...............................................................................................................................................64
12.2 Wireless M-Bus ..........................................................................................................................................65
13 Data communication ........................................................................................................67
13.1 MULTICAL302 Data Protocol.....................................................................................................................67
13.2 Optical eye .................................................................................................................................................69
14 Test .................................................................................................................................70
14.1 Meter modes ..............................................................................................................................................70
14.2 Test connection..........................................................................................................................................72
14.3 Handling different test methods .................................................................................................................74
14.4 True energy calculation...............................................................................................................................75
15 METERTOOL HCW .............................................................................................................76
15.1 Introduction ...............................................................................................................................................76
15.2 How to use METERTOOL HCW for MULTICAL® 302 ........................................................................................77
15.3 Flow sensor adjustment..............................................................................................................................81
15.4 LogView HCW .............................................................................................................................................82

MULTICAL® 302
Kamstrup A/S · Technical Description · 5512-1334_F1_GB_12.2016
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16 Approvals.........................................................................................................................84
16.1 Type approvals .......................................................................................................................................... 84
16.2 The Measuring Instruments Directive.......................................................................................................... 84
17 Troubleshooting...............................................................................................................85
18 Disposal...........................................................................................................................86
19 Documents.......................................................................................................................87

MULTICAL® 302
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Kamstrup A/S · Technical Description · 5512-1334_F1_GB_12.2016
1General description
MULTICAL302 is a static heat meter, cooling meter or combined heat/cooling meter based on the ultrasonic
principle. The meter is intended for energy measurement in almost all types of thermal installations where water is
used as the energy-conveying medium.
According to EN 1434 MULTICAL302 can be designated a "hybrid instrument", also called a compact meter. During
production and initial verification in our factory the meter is treated as three separate units or ”sub-assemblies” (flow
sensor, calculator and temperature sensor pair) but after delivery the units must not be separated unless by an
accredited laboratory.
If flow sensor, calculator or sensor pair have been separated and the seals broken, the meter is no longer valid for
billing purposes. Furthermore, the factory guarantee no longer applies.
MULTICAL302 employs ultrasonic measuring technique, ASIC and microprocessor technology. A single board
construction comprises all calculating and flow measuring circuits, which provides a compact and rational design and,
in addition, exceptionally high measuring accuracy and reliability is obtained.
Volume is measured using bidirectional ultrasonic technique based on the transit time method, proven a long-term
stable and accurate measuring principle. Two ultrasonic transducers are used to send sound signals with as well as
against the flow. The ultrasonic signal travelling with the flow reaches the opposite transducer first. The time difference
between the two signals can be converted into flow velocity and thereby also volume.
The temperature sensor type is Pt500 according to DS/EN 60751. Accurately matched Pt500 sensors measure the
temperatures in inlet and outlet pipes. MULTICAL302 is supplied with a ø5.2 mm Pt500 sensor pair. One temperature
sensor is mounted in the flow sensor from the factory and the other sensor is typically mounted as short direct sensor
in e.g. a ball valve.
The accumulated heat energy and/or cooling energy can be displayed in kWh, MWh or GJ, all in the form of seven
significant digits and measuring unit. The display has been specially designed to obtain long lifetime and sharp
contrast in a wide temperature range.
Other reading options are: accumulated water consumption, operating hour counter, current temperature
measurements, current flow and power readings. Furthermore, MULTICAL302 can display loggings, target day data,
error hour counter, max. flow, max. power, information code and current date/time.
MULTICAL302 is powered by an internal A-cell lithium battery with 6-8 years' lifetime or by two A-cells with 12-16
years' lifetime.
MULTICAL302 is available with communication for either wired M-Bus and/or Wireless M-Bus.
In designing MULTICAL®302 great importance has been attached to user comfort and compact external
measurements, which makes it suitable for a wide range of applications.
This technical description has been written with a view to enabling operations managers, meter installers, consulting
engineers and distributors to utilize all functions comprised in MULTICAL®302. Furthermore, the description is
targeted at laboratories performing tests and verification.

MULTICAL® 302
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1.1 Mechanical construction
No. Description No. Description
1 Front cover 8 Meter tube assembly
2 Meter electronics 9 O-rings
3 Calculator base 10 Hot brass casing
4 A-cell battery 11 O-ring for temperature sensor
5 Sealing cover for flow sensor 12 Coupling for temperature sensor
6 Transducer assembly with cable 13 Temperature sensor ø5.2 mm
7 Screws for top beam

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Kamstrup A/S · Technical Description · 5512-1334_F1_GB_12.2016
1.2 Seals
1.2.1 LOCK
The meter's front cover and base are assembled by means of a ”locking system” and the case cannot be separated
without breaking the two seals marked LOCK.
IMPORTANT: If the seals have been broken, the meter may no longer be used for billing. Therefore, the case may
only be opened by an accredited laboratory with authorisation to reseal the meter after reverification.
The seals are gently broken using a
screwdriver.
The mechanical locks are released by carefully moving
the screwdriver towards the centre of the meter.
Close-up illustration of locking function being released.

MULTICAL® 302
Kamstrup A/S · Technical Description · 5512-1334_F1_GB_12.2016
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When the two mechanical locks have been
released, remove the top cover from the
base.
Reassembling the meter the seals must be re-established using 15 x 15 mm void labels. Note: If the meter is used for
billing, this is a legal seal. Alternatively, Kamstrup's seal no. 2008-727 can be used.

MULTICAL® 302
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Kamstrup A/S · Technical Description · 5512-1334_F1_GB_12.2016
2Technical data
2.1 Approved meter data
Approvals DK-0200-MI004-031 and TS 27.02 001
Standards EN 1434:2007 and prEN 1434:2013
EU directives Measuring Instruments Directive, Low Voltage Directive, Electro-magnetic
Compatibility Directive, Pressurised equipment Directive
Heat meter approval, DK-0200-MI004-031
The stated minimum temperatures are only
related to the type approval.
The meter has no cut-off for low temperature
and thus measures down to 0.01°C and 0.01 K.
Temperature range θ: 2 °C…150 °C
Differential range ∆Θ: 3 K…130 K
Cooling meter approval, TS 27.02 001
Temperature range
θ
: 2
°
C…150
°C
Differential range ∆Θ: 3 K…85 K
Alternative temperature ranges θ: 2 °C…130 °C / ∆Θ: 3 K…110 K
θ: 2 °C…50 °C / ∆Θ: 3 K…30 K
Accuracy According to EN 1434
Temperature sensors Pt500 – EN 60 751, 2-wire, hard-wired connection
EN 1434 designation Accuracy class 2 and 3 / Environmental class A
MID designation Mechanical environment: Class M2
Electromagnetic environment: Class E1
Closed location (indoors), 5…55 °C
Nom.
flow
Max.
flow
Min. flow
Min.
cut-off
Saturation
flow
Pressure
loss
∆p @ qp
Threaded
connection
on meter
Length
100:1 250:1
qp
qs
qi
qi
Type number
[
m3/h
]
[
m3/h
]
[
l/h
]
[
l/h
]
[
l/h
]
[
m3/h
]
[
bar
]
[
mm
]
302Txxxxx10xxx
0.6
1.2
6
-
3
3.0
0.02
G¾B
110
302Txxxxx11xxx
0.6
1.2
6
-
3
3.0
0.02
G¾B
130
302Txxxxx12xxx
0.6
1.2
6
-
3
3.0
0.02
G¾B
165
302Txxxxx40xxx
1.5
3.0
15
6
3
5.0
0.09
G¾B
110
302Txxxxx41xxx
1.5
3.0
15
6
3
5.0
0.09
G¾B
130
302Txxxxx42xxx
1.5
3.0
15
6
3
5.0
0.09
G¾B
165
302Txxxxx70xxx
1.5 3.0 15 6 3 5.0 0.07 G1B 130
302Txxxxx71xxx
1.5 3.0 15 6 3 5.0 0.07 G1B 190
302Txxxxx72xxx
1.5 3.0 15 6 3 5.0 0.07 G1B 220
302TxxxxxA0xxx
2.5
5.0
25
10
5
7.0
0.09
G1B
130
302TxxxxxA1xxx
2.5
5.0
25
10
5
7.0
0.09
G1B
190
302TxxxxxA2xxx
2.5
5.0
25
10
5
7.0
0.09
G1B
220
Table 1
*With extension piece

MULTICAL® 302
Kamstrup A/S · Technical Description · 5512-1334_F1_GB_12.2016
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2.2 Electrical data
Calculator data
Typical accuracy Calculator: EC±(0.15 + 2/∆Θ) % Sensor pair: ET±(0.4 + 4/∆Θ) %
Display
LCD –7 (8) digits with digit height 6 mm
Resolution
9999,999 – 99999,99 – 999999,9 – 9999999
Energy units
MWh – kWh – GJ
Data logger (Eeprom)
960 hours, 460 days, 24 months, 15 years, 50 Info-events, 25 config. logs
Clock/calendar
Clock, calendar, leap year compensation, target date
Data communication
KMP protocol with CRC16 used for optical communication
Wired M-Bus
Protocol according to EN 13757-3:2013, 300 and 2400 Baud communication
speed with automatic baud rate detection.
Current consumption 1 unit load (1.5 mA).
1.5 m fixed 2-wire cable. Polarity independent.
wM-Bus
Mode C1 protocol according to EN 13757-4:2013. Individual 128 bit AES
encryption.
Transmission interval 16 s
Mode T1 OMS protocol according to EN13757-4:2013 and OMS Specification
Volume 2 issue 3.0.1. Individual 128 bit AES encryption.
Transmission interval 15 min.
Power of temperature
sensors
<
0.5
µ
W RMS
Supply voltage
3.6 VDC ± 0.1 VDC
EMC data
Fulfils EN 1434 class A (MID class E1)
Temperature measurement
2-Wire Pt500
T1
Inlet
temperature
T2
Outlet
temperature
∆Θ
(T1-T2)
Heat metering
∆Θ
(T2-T1)
Cooling metering
Measuring range
0.00…155.00 °C
0.00…155.00 °C
0.01…155.00 K
0.01…155.00 K
Battery
3.65 VDC, 1 x A-cell lithium
3.65 VDC, 2 x A-cell lithium
Battery lifetime
tBAT <30 °C
tBAT <45 °C
8 years
6 years
16 years
12 years
Data modules, frequent data communication and high ambient temperature
reduce the battery lifetime
Lithium content 0.96 g 2 x 0.96 g
Transport class Not subject to dangerous goods regulations
Outside the USA
Non-restricted to transport/Non-assigned to Class 9
Within the USA Belonging to the category of ”small primary lithium cells”
Important: It is not possible to change the battery on MC 302

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Kamstrup A/S · Technical Description · 5512-1334_F1_GB_12.2016
2.3 Mechanical data
Environmental class
Fulfils EN 1434 class A (MID class E1) and class M2
Protection
class
Ambient
temperature
Environmental class
Calculator IP65 5…55 °C Non-condensing Indoors (closed position)
Flow sensor and sensor pair IP68 Condensing
Medium temperatures
Heat meters 302-T
2…130 °C
At medium temperatures below 15 °C the calculator must be wall
mounted in order to prevent condensation.
At medium temperatures above 90 °C in the flow sensor the
calculator must be wall mounted in order to prevent too high
temperature, especially in relation to display and battery lifetime.
Cooling meters 302-T
2…130 °C
Heat/cooling meters 302-T
2…130 °C
Medium in flow sensor
Water
Storage temperature
-25…60 °C (drained flow sensor)
Pressure stage (with thread)
PN16 and PN25
Weight
From 0.7 to 1.1 kg depending on flow meter size and extension piece
Flow sensor cable
1.2 m (undemountable cable)
Temperature sensor cables
1.5 m (undemountable cables)

MULTICAL® 302
Kamstrup A/S · Technical Description · 5512-1334_F1_GB_12.2016
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2.4 Material
Wetted parts
Flow sensor case
Diaphragms
O-rings
Measuring tube
Reflectors
Hot dezincification proof brass (CW 602N)
Stainless steel, W.no. 1.4404
EPDM
Thermoplastic, PES 30% GF
Thermoplastic, PES 30% GF and stainless steel, W.no. 1.4306
Flow sensor cover
Thermoplastic, PC 20% GF
Wall bracket
Calculator case
Top
Base
Thermoplastic, PC 10% GF
Thermoplastic, ABS with TPE gaskets (thermoplastic elastomer)
Cables
Flow sensor
Silicone cable with inner Teflon insulation
Temperature
M-Bus

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Kamstrup A/S · Technical Description · 5512-1334_F1_GB_12.2016
2.5 Accuracy
Heat meter components MPE according to EN 1434-1 MULTICAL302, typical accuracy
Flow sensor Ef= ±(2 + 0.02 qp/q) % Ef= ±(1 + 0.01 qp/q) %
Calculator Ec= ±(0.5 + ∆Θ min/∆Θ) % Ec= ±(0.15 + 2/∆Θ) %
Sensor pair Et= ±(0.5 + 3 ∆Θ min/∆Θ) % Et= ±(0.4 + 4/∆Θ) %
-6,0
-4,0
-2,0
0,0
2,0
4,0
6,0
0,01 0,10 1,00 10,00
Tol [%]
q [m³/h]
MULTICAL
®
302 q
p
1,5 m ³/h q
p
:q
i
100:1 @∆Θ30K
Ec +E t+ Ef
(EN)
Ec +E t+ Ef
(Typ)
q
s
q
p
0,1
q
i
Diagram 1: Total typical accuracy of MULTICAL®302 compared to EN 1434-1.

MULTICAL® 302
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3Type overview
MULTICAL®302 can be ordered in various combinations as required by the customer. First select the required
hardware from the type overview. Then select ”Config” and ”Data” to suit the application in question.
The meter is configured and ready for use from the factory. It can, however, be reconfigured before installation (see
paragraph 8.4 Setup loop for further information).
3.1 Type and configuration overview
Type number
302-T-xx-x-xx-xx-xxx
Type number and serial number (factory set
unique serial no.) are written on the meter
and cannot be changed after production.
CONFIG >AB<
Inlet/outlet - Measuring unit - Resolution
- Can be changed via the pushbutton while
the meter is still in transport state.
- Later, the seal ”I (SETUP)” must be broken
and the switch activated in order to change
the configuration.
CONFIG >DDD<
Display
Change only possible via METERTOOL
provided that the seal ”I (SETUP)” is broken
and the switch activated.
CONFIG >EFGHHMMM<
Other configurations (see paragraph 3.6)
Change only possible via METERTOOL
provided that the seal ”I (SETUP)” is broken
and the switch activated.
CONFIG ”ABDDD-EFGHHMMM” is not written
on the meter, it can be read from the
display.
DATA
-Can be changed via the pushbutton while
the meter is still in transport state.
-
Later, data can only be changed via
METERTOOL provided
that the seal ”I
(SETUP)” is broken and the switch
activated.
- Customer No.
- Target date
- Average peak time (Max. flow and power)
- θhc (only active for meter type 6)
- Date/time
- M-Bus primary address

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Kamstrup A/S · Technical Description · 5512-1334_F1_GB_12.2016
3.2 Type number composition
Type 302-
฀
฀
฀
฀
฀฀
฀
฀
฀
฀
฀
Basic version
Pt500 sensor input T
Communication
No communication 00
M-Bus (comes with 1.5 m factory mounted cable) 20
M-Bus (comes with 2.0 m factory mounted cable) 21
Wireless M-Bus, 868 MHz (configurable mode C1 or T1) 30
Supply
6-8 year battery, Normal Response meter 1
12-16 year battery, Normal Response meter 2
6-8 year battery, Fast Response meter 3
Temperature sensors
Pt500, ø5.2 mm temperature sensors with cable length 1.5 m and composite union Q9
Pt500, ø5.2 mm temperature sensors with cable length 1.5 m and brass union QF
Flow sensor qp
[
m3/h
]
Connection Length
[mm]
0.6
G¾B (R½)
110 10
DN15 With extension to 130 mm 11
With extension to 165 mm 12
1.5
G¾B (R½)
110 40
DN15 With extension to 130 mm 41
With extension to 165 mm 42
1.5
G1B (R¾)
130 70
DN20 With extension to 190 mm 71
With extension to 220 mm 72
2.5
G1B (R¾)
130 A0
DN20 With extension to 190 mm A1
With extension to 220 mm A2
Meter type
Heat meter (MID module B+D)
θhc
= OFF 2
Heat/cooling meter (MID module B+D & TS27.02+DK268)
θhc
= OFF
3
Heat meter (National approval)
θhc = OFF
4
Cooling meter (TS27.02+DK268)
θhc = OFF
5
Heat/cooling meter
θhc
= ON 6
Country code (language on label etc.) XX
The flow sensors are type approved for dynamic ranges qp:qi= 250:1 and 100:1, but basically 100:1 is supplied.
Extension pieces, if any, are separately enclosed in the packing.

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3.2.1 Integration time
Depending on selected type number MULTICAL®302 is from the factory configured for integration (energy calculation)
every 32 seconds or every 8 seconds.
Supply
6 year battery, Normal Response meter 1
12 year battery, Normal Response meter 2
6 year battery, Fast Response meter 3
Among other things the meter's current consumption depends on the integration frequency of the meter. A Fast
Response meter integrates every 8 seconds and uses almost twice as much current as a Normal Response meter. This
means that the battery life is halved.
Normal Response cannot be changed to Fast Response and vice versa after delivery.
3.2.2 Configuration during setup of country code
The last two characters of the type number are called the country code. The code is used for setting up language of text
on label e.g. class 2 or 3, dynamic range, pressure stage PN16 or PN25, and indicates approval and verification marks.
Please contact Kamstrup for further details on available country codes. Currently available country codes appear from
internal document 5514-863 on Kamstrup’s Intranet.
3.2.3 Accessories
3026-655.A Wall fitting (LEXAN 3412R black)
6561-346 Holder for optical reading head
3130-362 Blind plug for temperature sensor in flow part (Copper alloy brass, CW614N)
6556-491 R½ x M10 nipple (Copper alloy brass, CW614N)
6556-492 R¾ x M10 nipple (Copper alloy brass, CW614N)
5920-257 G½ ball valve with M10x1 sensor socket
5920-271 G¾ ball valve with M10x1 sensor socket
6557-302 G½ sensor pocket 35 mm (Copper alloy brass, CW614N)
6699-099 Infra-red optical reading head w/USB plug
6699-102 Infra-red optical reading head RS232 w/D-sub 9F
6699-304 Infra-red optical reading head for NOWA
6699-016 Kamstrup NOWA KAS software
6699-724 METERTOOL HCW
6699-725 LogView HCW
Note: Ball valves with M10x1 socket (type: 6556-474, -475 and -476) are not suitable for sensors with O-ring seal
as they are intended for flat gaskets.

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3.2.3.1 Couplings (PN16):
Article number Size Nipple Coupling
6561-323 DN15 R½ G¾
6561-324 DN20 R¾ G1
Material: Copper alloy brass, CW617N (nipple). Copper alloy brass, CW602N (coupling)
3.2.3.2 Gaskets for couplings:
Article number Size (coupling)
3130-126 G¾
3130-127 G1
Material:Reinz AFM30
3.2.3.3 Extension pieces:
Article number Description Length [mm] Total length [mm]
6556-505 Extension piece G¾B 20 130
6556-506 Extension piece G¾B 55 165
6556-507 Extension piece G1B 60 190
6556-508 Extension piece G1B 90 220
Material:Copper alloy brass (CW614N)

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3.3 Config. >A-B<
The legal parameters of the meter are determined by Config., which can only be changed before installation when the
meter is still in transport state, or after breaking the seal ”I (SETUP)” and activating the switch.
The code A indicates installation of the flow sensor in inlet or outlet pipe. As the density and specific heat capacity of
water varies with temperature, the calculator must compensate for the installation type in question. Wrong
configuration or installation will result in a measuring error. Further details on installation of flow sensor in inlet and
outlet as far as heat and cooling meters are concerned appear from section 6.6.
The code B indicates the measuring unit used for energy registration, GJ, kWh or MWh, as well as the display
resolution.
A -
B
Flow sensor position
Inlet 3
Outlet 4
Measuring unit and resolution
00000.01 GJ 00000.01 m³ 2
0000.001 GJ 0000.001 m³ 6
0000001 kWh 00000.01 m³ 3
000000.1 kWh 0000.001 m³ 7
0000.001 MWh 00000.01 m³ 4
3.3.1.1 Dependency between measuring unit and resolution
Number of decimals in display
qp
[m³/h] kWh MWh GJ m³ l/h m³/h kW
0.6 0 3 2 2 0 - 1
1.5 0 3 2 2 0 - 1
2.5 0 3 2 2 0 - 1
0.6 1 - 3 3 0 - 1
1.5 1 - 3 3 0 - 1
2.5 1 - 3 3 0 - 1

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Kamstrup A/S · Technical Description · 5512-1334_F1_GB_12.2016
3.4 Config. >DDD<, Display coding
Display code ”DDD” indicates the active readings of each meter type in "User Loop". ”1” is the first indication. The
display automatically returns to reading ”1” after 4 minutes. During normal operation the display readings of the
selected DDD-code, which are connected to User loop, are shown. See examples of DDD-codes below.
User loop (Loop_1)
Heat meter DDD=217 Heat/cooling DDD=310 Heat meter DDD=410 Cooling meter DDD=510 Heat/cooling DDD=610
1.0
Heat energy (E1)
1
1 *)
1
1 *)
2.0
Cooling energy (E3)
2 *)
1
2 *)
3.0
Volume
2
3
2
2
3
4.0
Hour counter
3
4
3
3
4
5.0
T1 (Inlet)
4
5
4
4
5
6.0
T2 (Outlet)
5
6
5
5
6
7.0 T1-T2 (
∆
t) (Cooling shown by -)
6 7 6 6 7
8.0
Flow
9
8
7
7
8
9.0
Power
10
9
8
8
9
10.0
Info Code
11
10
9
9
10
11.0
Customer number (No1)
12
11
10
10
11
12.0
Customer number (No2)
13
12
11
11
12
13.0
E8 (m3x T1)
7
14.0
E9 (m3x T2)
8
*) The display order of DDD=3xx and 6xx can either start with ”E1-E3” or ”E3-E1”.
DDD=210/310/410/510/610 are ”standard codes” used by default. A complete overview of all created DDD-codes
appears from Kamstrup document 5512-1256.
The different loops are described in paragraph 8.
3.5 Energy overview
The above-mentioned energy types E1, E3, E8 and E9 are calculated as follows:
Formula Example of application Condition (country code 6xx only)
E1=V1(T1-T2) Heat energy (V1 in inlet or outlet)
T1 >T2
T1 >θhc (Inlet temperature must be
higher than the limit value) Legal Display/Data/Log
E3=V1(T2-T1) Cooling energy (V1 in inlet or outlet)
T2 >T1
T1 <θhc (Inlet temperature must be lower
than the limit value) Legal Display/Data/Log
E8=m3x T1 Used for calculation of average
temperature of inlet pipe None Display/Data/Log
E9=m3x T2 Used for calculation of average
temperature of outlet pipe None Display/Data/Log
θhc is the temperature, at which the meter shifts between heat and cooling measurement. The typical value is
25 °C, but other values can be supplied as required.
If θhc is set at 180 °C the function is disconnected, e.g. to be used for ”purchase/sale” of heat. See paragraph 7.4 for
further information on heat/cooling meters.