AXIOMA METERING UAB QALCOSONIC E2 Parts list manual

Axioma Metering UAB
ULTRASONIC THERMAL ENERGY METER
QALCOSONIC E2
TECHNICAL DESCRIPTION, INSTALLATION AND USER INSTRUCTIONS
PEE2V04
KAUNAS

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SAFETY REQUIREMENTS
Before operating the meter, please read this technical description and user's manual thoroughly and follow
their instructions.
When the meter is powered from the battery (3.6 V), risk factors during the meter installation and service is
a heat conveying fluid with inner pressure up to 2,5MPa and temperature up to 1800C.
If meter is powered from mains power supply, it contains dangerous ~230 V electrical current. It is
necessary to follow general safety requirements during installation and maintenance process.
To eliminate this risk, only qualified technical personnel may install and maintain heat meters (certificates
for electrical installation work with equipment up to 1000 V are required). Personnel must be familiar with
appropriate technical documentation and general safety instructions.
Device comply with safety class II. and does not require protective grounding. To protect power circuits
from current overrun, 0,1A fuse, marked “F1”, is mounted on the bottom side of power supply module.
Remove power supply module to replace the fuse.
If relay output current exceeds 2 A, it may damage output circuits. It is recommended to use additional
protection circuits to protect relay outputs from damage.
Safety guarantees at installation and service of meter is:
- Reliable insulation of electrical circuits,
- Hermetic fitting of primary flow and temperature sensors into the pipeline,
- Reliable fastening of a sub-assemblies of heat meter at installation.
Safety requirements for temperature and pressure sensors are provided in appropriate technical
documentation.
Warning! Switch off mains power supply before changing, repairing, connecting or disconnecting
system parts, if meter is powered from mains power supply! Power switch has to be installed close to the
calculator.
Mounting of the sub-assemblies of heat meter is permissible only after ensuring of absence of heat
conveying fluid in the pipeline.
When the meter is powered from the mains supply 230 V:
- The calculator of meter should be mounted in the cabinet (panel)
- The calculator of meter must be connected to line voltage 230 V using 3-wire copper cable with cross-
section of each wire not less than 0,5 mm2 (3x0, 5 mm2) with the color marking. External diameter of a cable must
be 6 ... 8 mm.
- The meter must be connected to mains power supply only through automatic unipolar AC switch (nominal
current 2 A) (Figure B3)..
- The automatic switch should be a part of the building wiring and it should be marked as disconnecting
device of meter. The automatic switch should be installed close to meter and so that it was easily available to service
personnel.
It is recommended to establish the calculator in the same cabinet as the switches for cutting off power
supply. The switches should be adjusted for the power used by the equipment.
Caution: If this equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.

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Contents
1. APPLICATION FIELD............................................................................................................................................4
2. TECHNICAL DATA................................................................................................................................................6
3. ACCESSORIES AND SUB-ASSEMBLIES OF HEAT METER...........................................................................13
4. OPERATING PRINCIPLE....................................................................................................................................14
5. MARKING AND SEALING...................................................................................................................................14
6. SAFETY REQUIREMENTS .................................................................................................................................15
7. INSTALLATION ...................................................................................................................................................15
8. OPERATION ........................................................................................................................................................23
9. VERIFICATION ....................................................................................................................................................33
10. TRANSPORTATION AND STORAGE REQUIREMENTS...............................................................................33
Annex A ...................................................................................................................................................................34
Annex B ...................................................................................................................................................................37
Annex C ...................................................................................................................................................................41
Annex D ...................................................................................................................................................................43
Annex E....................................................................................................................................................................46
Annex F....................................................................................................................................................................53
WARRANTY.............................................................................................................................................................55
INDIVIDUAL TECHNICAL DATA ...........................................................................................................................55
For EU Customers only - WEEE Marking.
Marking of electrical and electronic equipment in accordance with Article 14 (2) of Directive
2012/19/EC
This symbol on the product indicates that it will not be treated as household waste. It must be handed
over to the applicable take-back scheme for the recycling of electrical and electronic equipment. For
more detailed information about the recycling of this product, please contact your local municipal office.

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1. APPLICATION FIELD
Ultrasonic heat meter QALCOSONIC E2 is designed for metering of consumed heating or cooling energy in
closed heating/cooling systems, and consumed or supplied heating energy in closed heating systems, installed in
dwelling houses, office buildings or energy plants.
It is also possible modification of meter QALCOSONIC E2 for measuring of quantity of fluid in heating /
cooling systems and convert it to a normalized electrical signal.
Heat meter QALCOSONIC E2 consists of the primary flow sensor and the calculator with type approved pair
of temperature sensors with Pt500 elements.
The user may select (ordering the meter) one of twelve possible measurement schemes, according to the
application type:
Available measurement schemes QALCOSONIC E2 –
Measurement scheme application
Conventional
designation
For closed heating system with flow sensor in supply pipe
U1
For closed heating system with flow sensor in return pipe
U2
For closed heating system with flow sensor in supply pipe.
With leakage detection option
U1F
For closed heating system with flow sensor in return pipe
With leakage detection option
U2F
For closed system for accounting of heating - cooling energy with flow sensor in flow pipe
U1L**
For closed system for accounting of heating - cooling energy with flow sensor in return pipe
U2L**
For closed heating system with flow sensor in flow pipe or
for open heating system with the cold water temperature measurement and with two flow sensors,
installed in flow and return pipes
A*
For closed heating system with flow sensor in return pipe or for open heating system for
accounting energy consumption for heating and hot water preparation with cold water
temperature measurement and with two flow sensors, installed in flow and return pipes for
accounting of supplied heat energy
A1*
For closed heating systems with flow sensor in return pipe or for open heating system with two
flow sensors, installed in flow and replenishment pipes for accounting of supplied heat energy
A2*
For closed heating systems with flow sensor in return pipe or for open heating system with two
flow sensors, installed in flow and replenishment pipes for accounting of supplied heat energy
A4*
For combined heating - hot-water preparing systems. Two independent heat meters:
1st - For closed heating system with flow sensor in flow pipe.
2nd -For accounting of hot water energy
U1A3*
For combined heating - hot-water preparing systems. Two independent heat meters:
1st - For closed heating system with flow sensor in return pipe.
2nd -For accounting of hot water energy
U2A3*
Remark:
* - The requirements of the Directive 2014/32/EU are not applied.
** - The requirements of the Directive 2014/32/EU are applied for heating only.
Heat meter corresponds to essential requirements of the Technical Regulation for Measuring Instruments,
dated 30 October 2015 (transposing in the NB’s country law Directive 2014/32/EC of 26 February 2014):
- Annex I Essential requirements
- Annex VI Thermal energy meters (MI-004),
QALCOSONIC E2 complies with the European standard EN 1434 “Heat meters”.
QALCOSONIC E2 fulfils “C” class environment protection requirements according to
LST EN1434-1:2016 ( EN1434-1:2015)
Climatic ambient temperature range: from 5 °C to 55 °C
Humidity: non condensing
Location: closed
Mechanical environment: class M1
Electromagnetic environment: class E2

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Type number combination of the heat meter QALCOSONIC E 2 for order placing:
Remark: * - value of ratio of the flow rates for temperature limits of heat conveying liquid
Θ
q
= 0...130 ºC (for measurement schemes U1L and U2L only) are presented in brackets.
Power supply:
Code
Battery 3,6 V
1
Main power supply 230 V
2
1-ojo matavimo kanalo srauto jutiklio DN sutartinis žymėjimas:
Sutartinis
žymėjimas
Kodas
Sutartinis
žymėjimas
Kodas
Sutartinis
žymėjimas
Kodas
Sutartinis
žymėjimas
Kodas
25
01
80.2
06
150.1
11
350
16
32
02
80.1
07
200.2
12
400
17
40
03
100.2
08
200.1
13
500
18
50
04
100.1
09
250
14
600
19
65
05
150.2
10
300
15
E2 –□□ –□–□□ –□–□□ –□□ –□□ –□□ –□
Type
Data code of sensor of 2nd flow measurement channel is presented in table 1.2
Connection cable length of flow sensors, m:
Length
Code
Length
Code
Length
Code
Length
Code
3 m
01
10 m
03
20 m
05
50 m
07
5 m
02
15 m
04
40 m
06
Connection cable length of temperature sensors, m:
Length
Code
Length
Code
Length
Code
Length
Code
Length
Code
3 m
01
10 m
03
20 m
05
60 m
07
100 m
09
5 m
02
15 m
04
40 m
06
80 m
08
None
00
Ratio of the flow rates (qp/qi):
Code
100 (25)*
2
250
4
Data code of sensor of 1st flow measurement channel is presented in table 1.2
Communication interface:
Type
Code
Type
Code
None
0
M-bus/RS232/CL, pulse output
5
M-bus
1
MODBUS
6
RS232
2
MiniBus
7
RS485
3
RF 868MHz
8
M-bus/RS232/CL, current output
4
BACnet
9
Temperature sensors connection scheme, temperature difference
measurement range:
Code
Code
2-wire method, (2…150) K
22
2-wire method, (3…150) K
23
4-wire method, (2…150) K
42
4-wire method, (3…150) K
43
Measurement scheme:
Conventional
designation
Code
Conventional
designation
Code
Conventional
designation
Code
U1
01
U1L
06
A2
12
U2
02
U2L
07
A4
14
U1F
04
A
08
U1A3
16
U2F
05
A1
10
U2A3
17

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Data codes of flow sensors are presented in table 1.2
Table 1.2
Permanent flow rate qp,
m3/h
Overall length, mm
End connections
Code
Not used (only for 2-nd flow channel)
00
0,6
110
G ¾
01
0,6
190
G1
31
0,6
190
DN20
35
1,0
110
G ¾
02
1,0
190
G1
32
1,0
190
DN20
36
1,5
110
G ¾
03
1,5
165
G ¾
11
1,5
130
G1
21
1,5
190
G1
33
1,5
190
DN20
37
2,5
130
G1
22
2,5
190
G1
34
2,5
190
DN20
38
3,5
260
G1 ¼
41
3,5
260
DN25
43
3,5
260
DN32
45
6,0
260
G1 ¼
42
6,0
260
DN25
44
6,0
260
DN32
46
10,0
300
G2
51
10,0
300
DN40
52
15,0
270
DN50
61
25,0
300
DN65
71
40,0
350
DN80
81
40,0
300
DN80
82
60,0
350
DN100
91
60,0
360
DN100
92
60,0
350
DN100*
93
100,0
350
DN125*
94
150,0
500
DN150*
95
250,0
500
DN200*
96
400,0
600
DN250*
97
560,0
500
DN300*
98
750,0
550
DN350*
99
950,0
600
DN400*
100
Note: * flow sensor design with four ultrasound transducers
2. TECHNICAL DATA
2.1. Energy measurement
2.1.1. Heat meter accuracy class - 2
Maximum permissible heat energy measurement error of calculator and flow sensor:
),/02,0/5,2( min qqE p 
%;
Maximum permissible heat energy measurement error of complete meter (error of temperature sensors pair
included): E=
 (3+4
min

/  Θ+0,02qp/ q)
where:
min

- lower limit of the temperature difference, K;

-temperature difference, between the measured flow and return
temperatures of heat-conveying liquid K;
p
q
- permanent flow-rate, m³/h ;
q
- measured flow-rate, m³/h .

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2.1.2. Thermal energy calculation
Consumed heat energy is calculated according to formulas given in Annex A
It is possible to perform calculations in two ways, using programmed or practically measured pressure
values ( 1-st pressure channel corresponds to the flow pipe, 2-nd –return pipe);
Possible heat energy measurement algorithms (selected in configuration mode):
Standard: Unidirectional flow measurement, energy is calculated without any restrictions,
Special: Unidirectional flow measurement,
Energy and quantity of liquid are not calculated in those cases:
- flow rate exceeds programmed maximum allowed value
- flow rate is under programmed minimum allowed value
-or temperature difference is under programmed minimum allowed value
Error code is generated when parameter values exceed given limits. Also, in that case the device
intermit calculating working time, and calculates error duration.
Winter / summer: Flow in 2-nd channel is measured in both directions, energy is calculated
taking into account flow direction without any limitations (only for A and A1
measurement circuits –see Table 1).
2.1.3. Maximum power value 64 MW
2.2. Temperature measurement
Number of sensor inputs (measurement channels) 1, 2 or 3*
Temperature sensors type Pt500
Absolute temperature measurement error not more than

0,3 oC
Sensor connection method ** 2-wire, 4-wire
Max. cable length between calculator and
each of the temperature sensors:
for the 4-wire connection method 3; 5; 10; 15; 20; 40; 60; 80; 100 m,
for the 2-wire connection method 3; 5 m,
Temperature measuring range (1... 3) 0…180 oC
Temperature displaying range (3) -40…180 oC
Temperature difference (Θ1-Θ2 and Θ1-Θ3 )
measuring range 2…150 K (or 3…150 K)***
Resolution of indication of temperatures and
temperature difference 0,1 oC
Maximum permissible RMS value of sensor current 5,5 mkA
Recorded errors and their duration Θ >181 oC (or open circuit),
Θ < -41 oC (or short-circuit).
NOTES: * - additional 3rd channel selects the user during on-site installation
** - selected by the customer when ordering the device
2.3. Flow measurement
2.3.1. Ultrasonic flow measurement channels (sensors) 1 and 2
Ultrasonic flow measurement sensors
(depending on the measurement circuits) 2 or 1
Heat meter flow sensor data are presented in Table 2.1
Table 2.1
Flow-rate, m³/h
Threshold
value, m3/h
Overall
length, L,
mm
Pressure
loss p,
at qp, kPa,
not more
than
Connections end
(Thread –G, Flange –
DN)
Permanent
p
q
Maximum
s
q
Minimum
i
q
*
0,6
1,2
0,006(0,024)
0,003
110
7
G3/4“
0,6
1,2
0,006(0,024)
0,003
190
0,9
G1“, DN20
1,0
2,0
0,01 (0,04)
0,005
110
11,3
G3/4“
1,0
2,0
0,01 (0,04)
0,005
190
2,5
G1“, DN20
1,5
3,0
0,006 (0,06)
0,003
110; 165
17,1
G3/4“
1,5
3,0
0,006 (0,06)
0,003
190
5,8
G1“, DN20
1,5
3,0
0,015 (0,06)
0,006
110; 165
17,1
G3/4“
1,5
3,0
0,015 (0,06)
0,006
190
5,8
G1“, DN20
1,5
3,0
0,015 (0,06)
0,006
130
7,2
G1“

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2,5
5,0
0,01 (0,1)
0,005
130
19,8
G1“
2,5
5,0
0,01 (0,1)
0,005
190
9,4
G1“, DN20
2,5
5,0
0,025 (0,1)
0,01
130
19,8
G1“
2,5
5,0
0,025 (0,1)
0,01
190
9,4
G1“, DN20
3,5
7,0
0,035 (0,14)
0,012
260
4
G1 1/4“ DN25, DN32
6,0
12,0
0,024 (0,24)
0,012
260
10
G1 1/4“ DN25, DN32
6,0
12,0
0,06 (0,24)
0,024
260
10
G1 1/4“ DN25, DN32
10,0
20,0
0,04 (0,4)
0,02
300
18
G2“, DN40
10,0
20,0
0,10 (0,4)
0,04
300
18
G2“, DN40
15,0
30,0
0,06 (0,6)
0,03
270
12
DN50
15,0
30,0
0,15 (0,6)
0,06
270
12
DN50
25
50
0,1 (1)
0,05
300
20
DN65
25
50
0,25 (1)
0,1
300
20
DN65
40
80
0,16 (1,6)
0,08
300; 350
18
DN80
40
80
0,4 (1,6)
0,16
300; 350
18
DN80
60
120
0,24 (2,4)
0,12
350; 360
18
DN100
60
120
0,6 (2,4)
0,24
350; 360
18
DN100
60
120
0,24 (2,4)
0,12
350
0,6
DN100**
100
200
1,0 (4)
0,5
350
1
DN125**
100
200
0,4 (4)
0,2
350
1
DN125**
150
300
1,5 (6,25)
0,75
500
2
DN150**
150
300
0,6 (6,25)
0,3
500
2
DN150**
250
500
2,5 (10,4)
1,25
500
2
DN200**
250
500
1,0 (10,4)
0,5
500
2
DN200**
400
1120
4,0 (16)
2,0
600
2,2
DN250**
400
1120
1,6 (16)
0,8
600
2,2
DN250**
560
1560
5,6 (22,5)
2,8
500
2,5
DN300**
560
1560
2,24 (22,5)
1,12
500
2,5
DN300**
750
2100
7,5 (31,25)
3,75
550
3
DN350**
750
2100
3,0 (31,25)
1,5
550
3
DN350**
950
2660
9,5 (40)
4,75
600
3
DN400**
950
2660
3,8 (40)
1,9
600
3
DN400**
Remarks: * Values of the minimum flow rates for temperature limits of heat conveying liquid
Θ
q
= 0...130 ºC are presented in brackets.
** flow sensor design with four ultrasound transducers
Temperature limits of heat conveying liquid: Θ
q
= 5...130 ºC
Temperature limits of heat conveying liquid for measurement schemes U1L and U2L:
Θ
q
= 5...130 ºC
(or Θ
q
= 0…130 oC –by special ordering)
Accuracy class - 2
Limits of a permissible error of volume (mass) measurement: Ef= (2 +0,02qp/q), %
Difference of measurement errors of the pair flow sensors
in flow range from 0.1 qpto qs(for circuits U1F, U2F, A1) no more than 1,0 .
Function of flow measurement in two directions is provided
Connection line length between the calculator
and each of the flow sensor (3; 5; 10; 15; 20; 40; 50) m,
Recorded errors and their duration:
- the flow channel is broken,
- the pipe is empty,
- flow rate exceeds maximum allowed value,
- flow rate is under minimum allowed value,
Measurement units m3or t ;
Nominal pressure PN
(equal to the maximum working pressure PS) 1,6 MPa or 2,5 MPa,
The flow sensors qp = (0,6...6) m³/h has intended place for temperature sensor installation.
2.3.2. Flow pulse input (3 and 4)
Number of pulse inputs 2
Pulse input device class IB (or IC –when filter is off)

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Pulse values programmable
Type of pulses active, passive
- high voltage ranges of active pulses 2,5...3,7V
- low voltage ranges of active pulses 0 ...0,7V
- input resistance* at the bartery supply 2 MOm
- input resistance* at the main supply 10 kOm
(*Resistance of internal resistor to 3.6 V circuit)
Integrated programmable filter: programmatically
rejected input pulses, where the repetition period
is less than the stated period of the filter (2...999 ms) –for class IB only
Communication cable length between calculator
and each of the sensors (3; 5; 10; 15; 20; 40; 50) m,
Recorded errors and error duration (depending on the configuration):
- none recorded
- recorded at short circuit on line (or an impulse low level) longer than 2 s
- recorded when flow rate exceeds programmed maximum allowed value
- recorded when flow rate is under programmed minimum allowed value
- recorded when the pulse is not more than 24 hours.
Display units m3
Maximum permissible input pulse frequency and
minimal permissible pulse or pause duration,
depending on pulse type and cable length see table 2.2
Table 2.2
Power supply of meter/
Flow pulse input type
Connection cable
length , m
Maximum
permissible pulse
frequency, Hz
Minimal permissible
pulse or pause
duration, ms
Battery supply / Active pulses
<100 m
5
2,5 (100)
Battery supply / Passive pulses
(transistor key or mechanical contact)
< 10 m
5
100
Mains supply /
Active or passive pulses
<100 m
200 (5)
2,5 (100)
* - values for pulse input device class IB are presented in brackets.
Flow rate value (for information) is calculated:
a) when the flow input pulse duration period is T 10 s - each 10 s as multiplication of flow pulse value and
flow pulse average period,
b) when the flow input pulse duration period is T =10...180 s - flow input pulse duration periodicity as
multiplication of flow pulse value and flow pulse period,
c) when the flow input pulse duration period is T 180 s - the value zero is indicated.
2.4. Pressure measurement
Number of pressure inputs 0...2
Display units kPa
Fiducial error not more than 0,25 of the upper limit of the
measurement range
Pressure measurement ranges:
- lower limit, programmable from 0 kPa to 2500 kPa
- upper limit, programmable from 100 kPa to 2500 kPa
Normalized input dimension current, linearly dependent on the pressure
- input current limits, programmable 0-5 mA, 0-20 mA, 4-20 mA
- input resistance 110 Om
2.5. Time measurement
Relative time measurement error not more than 0,01 %
Heat meter calculator measures:
- real time - calendar
- time, when device is powered on
- normal working hours
- failure time of additional flow sensors V3 .. V4
- time, when flow rate exceeds programmed maximum allowed value for channels V1…V4
- time, when flow rate is under programmed minimum allowed value for channels V1…V4
- time, when temperature difference Θ1-Θ2 is under programmed minimum allowed value
Display resolution:
the real time display 1 s
for operating time display 0,01 h

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Time of storage date not less than 12 years
2.6. Display (LCD)
The device is equipped with 8-digits LCD (Liquid Crystal Display) with special symbols to display
parameters, measurement units and operation modes
The following information can be displayed:
- integral and instantaneous measured parameters and archive data, listed in the Table 2.4.
- device configuration information (see Fig. 8.2.6).
- report printing control information (see Fig.8.2.5).
Display resolution (directly corresponding with pulse output value), depending on programmed maximum
flow rate value (the highest value of the flow channel, involved in the energy calculation formula), is provided in the
Table 2.3
Table 2.3
Maximum flow rate,
m3/h
Displayed fluid volume (mass) lowest digit
value (flow pulse output value), m3
Displayed energy lowest digit value (energy
pulse output value),
qs < 5
0,001
0,1 kWh arba 0,0001 Gcal (arba GJ )
5 qs 50
0,01
0,001 MWh (Gcal arba GJ)
50 < qs500
0,1
0,01 MWh (Gcal arba GJ)
> 500
1
0,1 MWh (Gcal arba GJ)
2.7. Measured and recorded parameters:
Table 2.4
Arbitrary symbol
Parameter
Display capacity,
measurement units,
measurement ranges
Recorded in
archive
Integral parameters
E
Total consumed energy (in accordance with
Annex A)
8 digits,
MWh, Gcal, GJ*
Absolute values
every hour,
alterations every
hour, day and
month
E1
1st component of energy (in accordance with
Annex A)
E2
2nd component of energy (in accordance with
Annex A)
V1(M1)
Fluid volume (mass) of 1-st measurement
channel
8 digits,
m3(t)
V2 (M2)
Fluid volume (mass) of 2-nd measurement
channel
-M2
Reverse flow fluid mass in 2-nd channel (only
for “winter / summer” algorithm)
8 digits,
m3(t)
M1-M2 (V1-
V2)
Fluid volume (mass) difference between 1-st
and 2-nd measurement channels
8 digits,
m3(t)
V3 (M3)
Fluid volume (mass) of 3-rd measurement
channel
8 digits,
m3
V4
Fluid volume of 4-th measurement channel
Total operation time
8 digits,
0,01 h
A
Operation time in normal mode
Er 1
Codes of significant faults (errors)
6 digits
Amount in hour,
day, month
Er 2
Codes of transitory faults (errors)
6 digits
Instantaneous parameters
P
Total instantaneous thermal power
5 digits, kW
-------
q1
Flow rate on 1-st channel
5 digits,
m3/h or t /h
5 digits, m3/h
-------
q2
Flow rate on 2-nd channel
q3
Flow rate on 3-rd channel
q4
Flow rate on 4-th channel
p1
1-st channel fluid pressure
0 ... 2500,0 kPa
Average hourly,
daily and
monthly data
p2
2-nd channel fluid pressure
1
1-st channel fluid temperature
0...180 oC
2
2-nd channel fluid temperature
1-2
1-st and 2-nd channel temperature difference
(2...150) oC
3
3-rd channel fluid temperature
- 40...+180 oC

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2.8. Data recording and storage
Following daily, weekly and monthly parameter values are recorded in heat meter memory:
- absolute integral instantaneous parameter values (listed in Table 2.4)
- hourly, weekly and monthly alterations of integral parameters
- hourly, weekly and monthly average values for all measured temperature and pressure values
- error (fault) and information codes (see paragraph. 8.2.2) that occurred during the last hour, day and month
Data logger capacity:
up to 110 days (3,5 months) –for hourly records.
up to 1096 days (36 last months) - for daily and monthly records,
Archive data retention time not more than 36 months
Retention time of measured integrated parameters
even if device is disconnected from power supply not more than 12 years
2.9. External communication modules and interfaces
2.9.1. Optical interface
(integrated into the front panel) according to EN 62056-21:2003
Optical interface is designed for:
-read out of values by protocol EN IEC 62056 or M-bus
- direct printing reports (by ASCII codes)
-read out archive data by protocol M-bus
-configuring of the meter by means of the special protocol
(parameterization mode is actuated by button “SET”)
- adjusting of the meter by means of the special protocol
(adjusting mode is actuated by jumper)
Programmable data transfer rate (300 ... 9600) bps
with the "Even" parity or not.
2.9.2. Communication interfaces (as optional plug in modules)
- M-bus (according to EN1434-3);
- M-bus / CL / RS232 / two pulses outputs;
- M-bus /CL / RS232 / two current outputs;
- RS232,
- R485,
- MODBUS,
- RF 868 MHz (wireless),
- MiniBus
- BACnet
Wire communication interface (except MODBUS and BACnet) protocol M-bus (according to EN1434-3) .
Data transfer rate programmable (300 ... 9600) bps with the "Even" parity or not.
Wire communication interface MODBUS protocol MODBUS RTU, BACnet protocol BACnet
2.9.3. Pulse -frequency and current outputs
Two programmable(configurable) pulse or
frequency (available only with mains power supply version)
outputs (as optional plug-in module) Class OD
Pulse outputs type (the user can select): or active pulses 18 V
or passive pulses (Umax 42V),
current up to 20mA
Two programmable current outputs
(as optional plug-in module, only available
with mains power supply version): 0-20mA or 4-20mA
The configurable pulse-frequency output in “pulse mode” can be used for thermal energy (E, E1, E2, E3) or
quantity of liquid V1(M1), V2(M2), V3(M3), V4 pulses Pulse value will correspond to the lowest digit of indicated
parameter.
The configurable pulse-frequency output in “frequency mode” or current output can be used for thermal
power, flow rate (q1, q2, q3, q4), temperature (1, 2, 3) or pressure (p1, p2) pulses.
Zero value of frequency (or the minimum value of the selected range of a current) corresponds to zero value
of an output parameter, and frequency 1000 Hz (or maximum value of the selected range of a current) corresponds
to maximum value of parameter:
flow rate –qmax,
temperature –180 oC,
pressure –p max,
thermal power–qmax*100 [kW],

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There qmax- the maximum flow rate in the measurement channel [m3/h]).
2.10. Additional functions
2.10.1. Regulation function
Available only with mains power supply version. The double relay output (230V) is intended for controlling of
current load up to 2A and it is fitted in main supply module.
Using electrically-controlled valve gives the possibility:
automatically maintain selected parameter value within defined limits,
prevent selected parameter from exceeding maximum allowed value,
prevent selected parameter from falling below minimal allowed value
control a water temperature on the flow pipeline, to maintain the preset room temperature,
depending on outdoor temperature (Θ3).
Following parameters can be selected for regulation:
thermal power,
any flow (q1…q4),
any temperature (Θ1 … Θ3),
temperature difference (Θ1- Θ2),
any pressure (p1 or p2).
IMPORTANT: Regulation will be efficient only if regulated valve is installed in such way that it can
effect regulated parameter.
Regulation speed (time interval from fully opening the valve to fully closing the valve) is programmable.
Following electrically-controlled valves may be used for regulation:
with separate control inputs for opening and closing the valve,
where current required to open or close the valve does not exceed 2A,
where voltage required to open or close the valve does not exceed 230 V
2.11. Alarm function
If regulation function is not required, relay output can be used to generate alarm signal. Relay contacts will
close, if: -selected parameter value exceeds measurement limits,
- selected parameter exceeds maximum allowed value,
- selected parameter falls below minimum allowed value.
Any parameter listed in paragraph 2.10.2 can be used to generate alarm signal.
2.12. Supply voltage
Internal battery* 3,6 VDC, D-cell lithium
Replacement interval not less than 11 years (10 years for schemes U1F, U2F)
Mains supply AC (502) Hz, 230 V
10
15


,
Power supply < 3 VA (only for meter)
Consumption of energy per year up to 26.3 kWh;
Power supply < 15 VA (for meter and extra sensors)
Consumption of energy per year up to 131,5 kWh;
Power supply for extra sensors
Voltage for powering pressure or extra flow sensors +18 V 10 
(only for meter with mains supply module) total current < 400 mA.
Voltage for powering extra flow sensors +3,6 V 10 ,
(only for meter with mains supply module) total current < 20 mA.
Voltage for powering extra ultrasonic flow sensors +3,6 V 10 ,
(for meter with supply from battery) total current < 70 mkA.
NOTE: *
2.13. Mechanical data
Dimensions of calculator 159 mm x 52 mm x 142 mm
Dimensions of flow sensors According to Annex H
Weight of calculator 0,5 kg.
Functional limitations, when the meter is powered from internal batteries:
1. It is impossible to use relay regulator/alarm outputs function
2. It is impossible to use frequency and current outputs function
3. Unavailable pressure sensor power supply from the meter
5. Automatic restriction of operating time of communication interface (wire and optical) till 80
minutes per month

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Weight of flow sensors According to table 2.7
Table 2.7
Connection type and overall length of flow sensor
Mass*, not more than, kg
G3/4“ , 110 mm
0,7
G3/4“ , 165 mm
0,8
G1“ , 130 mm
0,8
G1“ , 190 mm
0,9
DN20 , 190 mm
2,5
G1 ¼“ , 260 mm
3,2
DN25, 260 mm
5,6
DN32, 260 mm
6,1
G2“
3,7
DN40
6,8
DN50
8,5
DN65
13,0
DN80
15,0
DN100
18,0
DN100
16,0
DN125
17,0
DN150
24,0
DN200
42,0
DN250
67,0
DN300
80,0
DN350
104,0
DN400
133,0
NOTE: The mass of flow sensor is presented without mass of connecting cables.
Maximum mass of cables is 8 kg (2x100 m)
Enivoronmental class Meets EN1434 class C
Ambient temperature:
Calculator at +5 oC to +55 oC
(indoor installation)
Floe sensors at -30 oC to 55 oC
Relative humidity < 93 , condensing
Mechanical environment class: M1
Electromagnetic environment class: E2
Protection class of calculator enclosure IP65
Protection class of flow sensor enclosure IP65 (IP67 or IP68 –by special ordering)
3. ACCESSORIES AND SUB-ASSEMBLIES OF HEAT METER
Required sub-assemblies and accessories may be delivered according to the particular application
and flow measurement scheme, as defined by the customer (listed in Table 3.1):
Table 3.1
Item
Amount, pcs
1. Heat meter calculator QALCOSONIC E2
1
2. Technical description, user manual for heat meter QALCOSONIC E2
1
3. Mounting kit for heat meter calculator
1*
4. Ultrasonic flow sensors
1…2*
5. Internal battery 3,6 V
1*
6. Internal 230 V mains power supply module
1*
7. Communication module SKS43 with M-bus interface
1*
8. Communication module SKU45 with M-bus, CL, RS-232 interfaces and two current outputs
1*
9. Communication module SKU46 with M-bus, CL, RS-232 interfaces and two pulse outputs
1*
10. Communication module SKS48 with RS-232 interface
1*
11. Communication module RS485
1*
12. Communication module MODBUS
1*
13. Communication module MiniBus
1*
14. Communication module BACnet
1*
15. Communication module RF 868MHz
1*

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16. Temperature sensors PL-6 or TP2 , Pt500
1…3*
17. User manual for temperature sensors
1*
18. Pressure sensors MBS
2*
REMARKS: 1. “*” – required options selected by the customer,
2. Heat meter may be equipped with other types of temperature sensors, if they correspond to
requirements listed in paragraph 2, requirements of EN1434 standard and have the EC-type examination
certificate by Directive 2014/32/EU
3. Heat meter may be equipped with other types of pressure sensors, if they correspond to
requirements listed in paragraph 2, are included in Lithuanian state registry of measurement equipment and
have type approval certificate.
4. OPERATING PRINCIPLE
Ultrasonic heat and water meters QALCOSONIC E2 is multichannel programmable microprocessor
measuring device which consists of electronic unit (calculator) and the initial flow (up to 2), temperature (up to 3) and
pressure (up to 2) sensors..
The flow measuring principle is based on ultrasonic measurement method. Fluid volume is calculated
according the formula:
V

KH * KM * (1/t+- 1/t-) *T ,
where: V - measured fluid volume, m3;
T –time of integration, s;
t+- measured upstream time of flight of ultrasonic pulse, s;
t-- measured downstream time of flight of ultrasonic pulse, s;
KH –hydrodynamic correction factor;
KM –coefficient that depends on the flow sensor dimensions.
The liquid temperature is measured with standard platinum resistance temperature sensors Pt500. Pairs of
temperature sensors with 2-wire or 4-wire connection method for measurement temperatures on flow and return
pipelines are used. Flow and return temperature sensors can be replaced only in pairs.
The temperature sensor T3 (if not used for calculation of thermal energy ) the user can activate and use for
other technological measurements or for regulation function.
Thermal energy is calculated using formulas provided in Annex A.
Additional inputs of flow V3, V4 and pressure sensors, which are not used for thermal energy measurement,
can be used (or not), for the control of other parameters.
Values of the measured and calculated parameters are shown on the display.
Possible thermal energy measurement algorithms are described in p. 2.2.2.
5. MARKING AND SEALING
5.1. Marking
Marking of calculator:
There are following information on the front panel of calculator - manufacturer’s trade mark , identity marking
(type designation and type number), serial number, year of manufacture, EC-type examination certificate number,
limits of the temperature, limits of the heat conveying temperature, limits of the temperature differences, type of
temperature sensors (Pt500), the limiting values of the flow rate(qi,qp,qs), flow sensor installation site (flow or return
pipe), accuracy class, environmental class by LST EN1434-1, electromagnetic and mechanical environmental class,
enclosure protection class, the maximum admissible working pressure (PN class), voltage level for external power
supply, conventional designation of the applied measurement scheme, for schemes U1L and U2L –remark, what the
requirements of the Directive 2014/32/EU are applied for heating only.
Numbers of terminal pins are marked close to the terminal
Marking of flow sensor:
There are following information on the flow sensor- manufacturer’s trade mark, nominal diameter year of
manufacture, serial number, arrow indicating the direction of the flow.
5.2. Security seals
The following heat meter calculator sealing is provided:
Manufacturer warranty seal (the adhesive seal-sticker) on the fixing bolt of electronic module under
protective cover (see Fig.8.1),
Manufacturer’s calibration (verification) seal on the bolt of protective cover of electronic module inside the
calculator, which protect the access to the adjustment activation jumper (see Fig.8.1).
The following flow sensor sealing is provided:

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Seals on the screws of protective cover of flow sensor ( Sticker or hanging seal according Annex E, Fig.
E10). Mounting seal:
- After installation the case and cover of the calculator are sealed with hanged seals of heat supplier (see
Annex D)
- Seals on the protective cover and mounting bolt of temperature sensors (see Annex F, Fig.1...2).
The meter must be sealed to ensure that after the installation, it is not possibility of dismantle, remove or
altering the meter without evident damage on the meter or the seal.
6. SAFETY REQUIREMENTS
When the meter is powered from the battery (3.6 V), risk factors during the meter installation and service is a
heat conveying fluid flowing within flow sensor with inner pressure up to 1,6 MPa and temperature up to 1800C.
If meter is powered from mains power supply, it contains dangerous ~230 V electrical current.
To eliminate this risk, only qualified technical personnel may install and maintain heat meters (certificates for
electrical installation work with equipment up to 1000 V are required). Personnel must be familiar with appropriate
technical documentation and general safety instructions.
It is necessary to follow general safety requirements during installation and maintenance process.
Protective grounding is not required, because housing is made from plastics, and conductive parts are not
exposed to the surface.
To protect power circuits from current overrun, 0,1A fuse, marked “F1”, is mounted on the bottom side of
power supply module. Remove power supply module to replace the fuse.
If relay output current exceeds 2 A, it may damage output circuits. It is recommended to use additional
protection circuits to protect relay outputs from damage.
Safety guarantees at installation and service of meter is:
- Reliable insulation of electrical circuits,
- Hermetic fitting of primary flow and temperature sensors into the pipeline,
- Reliable fastening of a sub-assemblies of heat meter at installation.
Safety requirements for temperature and pressure sensors are provided in appropriate technical
documentation.
Warning! Switch off mains power supply before changing, repairing, connecting or disconnecting
system parts, if meter is powered from mains power supply! Power switch has to be installed close to the
calculator.
Mounting of the sub-assemblies of heat meter is permissible only after ensuring of absence of heat
conveying fluid in the pipeline.
7. INSTALLATION
Basic requirements
Before installing the device:
- check if all parts listed in the documentation are available,
- check if there are no visible mechanical defects,
- check if there are valid labels of manufacturer.
Only qualified personnel may install the equipment, following the requirements listed in this document, in
technical documentation of other system components and in heat meter installation project
Mechanical mounting
Mounting of calculator
Heat meter calculator may be installed in heated premises, on vertical surface. It may not be exposed to direct
sunlight. Outline and mounting dimensions are provided in Annex D
Calculator can be mounted in five different ways:
- Wall mounting, without possibility sealing of mounting
- Wall mounting, with possibility sealing of mounting
-Mounting on standard DIN-rail
-Panel mounting
-Direct mounting on ultrasonic flow sensor
Note: For water heating temperatures above 90 oC, the calculator must be mounted on the wall.
 Important: It is forbidden to attach the calculator directly to a wall if there is a risk that on walls can be
condensed humidity or temperature of a surface of a wall can fall lower than 5 °. In this case, it is
recommended to attach the calculator so that between it and wall surfaces there was an air gap not less
than 5 cm.
Mounting of ultrasonic flow sensors
Outline and mounting dimensions of ultrasonic flow sensors are provided in Annex E.

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For flow sensors of the heat meter with nominal diameter DN65….DN400 necessary straight pipelines lengths
are: upstream ≥ 5 × DN, downstream ≥ 3 × DN. For flow sensors of other sizes the straight pipelines installation in
upstream and downstream the sensor are not necessary.
If, prior to flow sensor with nominal diameter from DN125 to DN400 installed elbow or double elbow
necessary straight pipelines lengths upstream the meter is ≥ 10 × DN, if the triple elbow - ≥ 20 × DN. downstream ≥
3 × DN. If, prior to flow sensor with nominal diameter from DN125 to DN400 installed pump or valve necessary
straight pipelines lengths upstream the meter is ≥ 10 × DN, downstream ≥ 3 × DN.
Avoid the flow sensor installation near after the pumps which can cause cavitation’s.
Flow sensor can be mounted vertically, horizontally or on an incline in pipelines. A necessary condition for
operation - the pressure must be in the pipe and the pipe must be completely filled with heat conveying liquid.
The location and position of the flow sensor must be selected in such a way as to reduce the risk of
accumulation of air bubbles in the zone of ultrasonic sensors (Fig. 5.1). Flow sensors DN100 - DN400 with four
ultrasonic transducers are recommended to be installed in such a way, that the ultrasonic transducers will be in a
horizontal position (Fig. 5.1c).
a) Permissible installation position b) The installation position is prohibited.
Of the flow sensors qp 3,5 m3/h... qp 60 m3/h (the air bubbles may accumulate)
c) Recommended installation position of the flow sensors DN100 –DN400 with four ultrasound transducers
Fig.5.1. Mounting Position of the flow sensors
The direction of the sensor installation (is indicated with the arrow on the label of flow sensor) must match
with the flow direction in pipeline.
Before installing the flow sensor, rinse the pipe well; mount the spacer for this purpose.
The flange gaskets must match with the pipe diameter. During the installation gasket must be exactly
centered with the center of the pipe cross-section to avoid sticking out gaskets inside the pipe.
The signal wires can be connected to the calculator only after full installation of the meter. It is forbidden to
change the length of connection cables. If you need to change the length of the connection cables, you should
contact to the service organization.
Mounting of temperature sensors
Before installing, check that the temperature sensors are paired (T1 to T2).

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Temperature sensors are mounted by head upwards, is perpendicular to the pipe axis or inclined by 45 °
angle on fluid flow direction so that the sensing element has been inserted in medium at least up to the pipe axis or
beyond (as shown in Annex F).
Electrical wiring
Electrical installation of heat meter is performed according to selected measurement scheme (Annex B) and
appropriate installation diagrams (Annex B), also according to technical requirements for other system components.
Description of connection terminal pins is provided in Annex C.
The signal wires can be connected to the calculator only after full installation of the meter. For connecting of
the signal electrodes, use a coaxial cable supplied by the manufacturer.
It is forbidden to change length of a cable.
Temperature sensor connection:
2-wire or 4-wire connections could be used.
Using 4-wire connection schemes –the connection must be performed with the grounded cables with signal
wires with the cross-section not less than 0.12 mm2.
Using 2-wire connection schemes - the connection must be performed with the grounded cables with total
resistance of signal wires not more than 0.5 and the cable length difference no more than 2 
Before installation check that the temperature sensors are paired with each other (T1 to T2).
If cable length between calculation unit and sensors exceeds 5 m, shielded cables have to be used. Cables
should be run through rubber seal caps and anchored with clamps. Four-, three- or two-wire cable should be used
respectively. Cable shield should be connected to appropriate terminal pins (see diagram in Annex B) or to any free
contacts marked with symbol “ “or is clamped with metal clips in an installation time.
At connection with the grounded cables it is necessary in addition one of free contacts „ “to connect to a
contour of grounding of a building a copper wire with section (0,5... 1,0) мм2.
It is forbidden to wire signal cables nearby (less than 5 cm) with power cables or cables of other devices.
7.2. Setting up the configuration
The heat meter is universal device for measurement of supplied (consumed) heating energy. The calculator
has to be customized for the particular application, putting into account the type of heating system, also types of flow,
temperature and pressure sensors. After placing an order, calculating unit is adapted to one of several possible
measurement circuits. Energy calculation formulas and measurement circuits are presented in Annex A. Flow,
temperature and pressure channels, unused for heat energy measurement, cal be used to control other parameters.
It is possible to select measurement units for flow measurement (volume units or mass units –according to
measured media temperature). The heat meter has to be programmed for the specific application
using the control buttons , also the configuration button “SET” (under the lid, see Fig. 8.1) or with the PC.
To enter the configuration mode, open the calculator lid and press the button “SET”. Press the “SET” button
once more to leave the programming mode.
When configuration (programming) mode is active, label “SET” is displayed in the upper right corner of the
display. All parameters have to be programmed. The algorithm for setting up parameters, possible parameter limits
and abbreviations are listed in Table 7.1.
Table 7.1
Menu description
LC Display example
Value
(Possible limits of change)
Serial number of meter *
Serial flow sensor number of 1st flow
measurement channel*
Serial flow sensor number of 2nd flow
measurement channel*
Customer number
0…999999
Real time calendar
The date format is
<year>.<month>.<day >

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Real time clock
The time format is:
<hour>-<minute>-<second>
Set day
The yearly set day format is:
12.31 (<month>.<day>),
The monthly set day format is:
--.30 (<day>)
-- . -- -function is deactivated
Serial communication interface
address
0…255
Data transfer rate via wired interface
(300…38400, 300E…38400E) bytes/s
“E” –parity “Even”
None “E” – no parity
Data transfer rate via optical interface
(300…9600, 300E…9600E) bytes/s
“E” –parity “Even”
None “E” – no parity
Next replacement date of the battery
The date format is <year>.<month>)
Measuring circuit symbol and energy
calculation algorithm*
U1,U2,U3,U1F,U2F,U1L,U2L,A,AC,A1,
A1C,A2…A5,U1A3,U2A3,F1,F2
Algorithm: 1 –standard
2 –special
3 - “winter/summer”
List of active temperature sensors
(“1 2 3 “) and type of sensors*
Possible types:
Pt500, Pt1000, 500П, 1000П
Month number and to it corresponding
established value of cold water
temperature constant 4
1…12, “- -“(month number from 1 to 12);
0…99,9 oC
For example: 12 month, 4 20,0 oC
(when „--„ -value 4 is valid for all months)
Auxiliary constant of temperature 5.Is
used for verification in "TEST" mode
only.
0…150 oC
(In verification mode value of 5 is set to
equal of the fluid temperature on the flow
sensor 5 ° C)
Type of 3-rd flow input (or OFF),
minimal pulse period in ms,
flow measurement units
m3(or t)
Flow input type:
S-standard,
E –with error control;
L –with the "24 hour" pulse control;
OFF –flow input not used
Type of 4-th flow input (or OFF),
minimal pulse period in ms,
flow measurement units
m3(or t)
Flow input type:
S-standard,
E –with error control;
L –with the "24 hour" pulse control;
OFF –flow input not used
Minimum flow rate value of 3-rd flow
input, m3/h
Exponential form X.XXE-X
For example:
1,00E-2 = 1,00*10-2 = 0,01 m3/h
Maximum flow rate value of 3-rd flow
input, m3/h
Exponential form X.XXE X
For example:
3,60E2 = 3,60*102= 360 m3/h

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3-rd flow input pulse value, m3/pulse
Exponential form X.XXE-X
For example:
1,00E-2 = 1,00*10-2 = 0,01 m3/pulse
Minimum flow rate value of 4-th flow
input, m3/h
Exponential form X.XXE-X
For example:
1,00E-2 = 1,00*10-2 = 0,01 m3/h
Maximum flow rate value of 4-th flow
input, m3/h
Exponential form X.XXE X
For example:
3,60E2 = 3,60*102= 360 m3/h
4-th flow input pulse value, m3/pulse
Exponential form X.XXE-X
For example:
1,00E-2 = 1,00*10-2 = 0,01 m3/pulse
Minimum value of temperature
difference 1 - 2
Current limits of pressure sensors
(pressure inputs)
pre-programmed pressure value:
0-20C –corresponding 0…20 mA,
4-20C - corresponding 4…20 mA,
0-5C - corresponding 0…5 mA,
OFF –pressure sensors not used
Minimum rated value of pressure
sensors, kPa
(0,0…25000) kPa
Maximum rated value of pressure
sensors, kPa
(0,0…25000) kPa
The pressure value used in
calculations of heat *, kPa
(0,0…9999,9) kPa
If specify "0.0 kPa" - for calculation is used
the measured pressure value
(p1 –for flow pipe , p2–for return pipe)
Thermal energy units *
MWh (kWh), Gcal ar GJ
Measurement units of quantity of a
liquid of 1-th flow measurement
channel
For choice:
m3or t
Measurement units of quantity of a
liquid of 2-nd flow measurement
channel
For choice:
m3or t
Report printing language and
communication with the printer
interface type
Report language: Prnt-P –Russian,
Prnt-L –Lithuanian, Prnt-E –English.
Communication with the printer interface
type:
1-wire interface, 2-optical interface
Parameter, derivable to 1st pulse
frequency output
MWh –thermal energy, m3-flow rate, kW-
thermal power, oC –temperature, kPa-
pressure, 1...4 -number of measurement
channel, 1-2 difference
Parameter, derivable to 2nd pulse
frequency output
MWh –thermal energy, m3-flow rate, kW-
thermal power, oC –temperature, kPa-
pressure, 1...4 -number of measurement
channel, 1-2 difference

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Regulation function
and settings of regulable (controlled)
parameter
OFF –regulation function is disabled,
On1 or On2 –type of active operating mode,
Regulable parameter:kW-power, oC –
temperature, m3/h –flow rate, kPa-pressure.
1…3 – number of channel.
Mode On1 -lower limit (the minimum
allowed value) for regulated
parameter.
Mode On2 - preset room temperature
kW –power, m3/h-flow rate,
oC –temperature, kPa –pressure.
1...4 - number of measurement channel.
1-2 –difference
Mode On1 - upper limit (the maximum
allowed value) for regulated parameter
Mode On2 - adaptation coefficient
kW –power, m3/h-flow rate,
oC –temperature, kPa –pressure.
1...4 - number of measurement channel.
1-2 –difference
Valve runtime, s
0…999 s
Pause between actuation period
(actuation period is equivalent to 1%
of the preset valves runtime, s
0…999 s
Keeping the accuracy of preset flow
temperature (hysteresis),oC
(only for mode On2)
oC
the maximum allowed value of flow
temperature (threshold value of
protection),oC (only for mode On2)
oC
Software version number*
LCD segment test*
Notes:
1. The displayed parameters list can be shorter depending on the selected modification, and a meter configuration
(parameters, inappropriate for the given configuration will not be shown).
2. Marked with "*" parameters values can be modified only by the manufacturer (replacement possibility is protected
by calibration seal). These parameters are displayed only for information
3. Parameters 23... 29 will be displayed only if the meter is completed with the mains supply module. It can be
modified (changed) in "SET" and "INF" display modes
4. Displayed parameter values, for example. "1.00-2" are given in exponential form:
There: X.XX E XX
For example: value 1,25E-2 = 1,25*10-2 = 0,00125.
Parameters, listed in Table 7.1 should be set up as shown in Fig. 7.2:
Select the parameter to be modified, then press and hold button until parameter value starts blinking –
alteration mode is entered.
Value of exponent
Value of base