meter SKU-03 (calculator and flow sensor) Fig.2. Calculator of the heat meter SKU-03

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1 LABORATORY OF HEAT EQUIPMENT Certificate Nr. LT-1621-Ml004-00S issued 29 th April2011 Page I of 9 pages Harmonized standards applied: LST EN :2007, LST EN AC:2007, LST EN :2009, LST EN AC:2007, LST EN :2007. Additionally documents applied: WELMEC Software guide (Issue 4). The measuring instrument must correspond with the following specifications: 1 Design of the instrument 1.1 Construction Heat meter SKU-03 consists of the primary flow sensor and the calculator with type approved pair of temperature sensors with Pt500 elements. Flow sensor consists of brass housing with the installed ultrasound transducers. The flow sensor connected to the calculator via screened cable. The flow sensors qp=(o,6-6,0)m 3 /h has intended place for temperature sensor. The calculator can be mounted directlyon a flow sensor or separately. The heat meter is operated by 3,6 V lithium battery. Fig.l.Heat meter SKU-03 (calculator and flow sensor) Fig.2. Calculator of the heat meter SKU-03 Breslaujos g. 3. LT Kaunas, tel.: (8-37) , fax: (8-37) , testlab@mail.lei.lt,

2 LABORATORY OF HEAT EQUIPMENT Certificate Nr. LT-1621-MI004-00S Page 2 of9 pages Fig.3. Flow sensor of the heat meter SKU-03, qp=o,6/1,0i1,512,5 mvh Fig.4. Flow sensor of the heat meter SKU-03, qe=3,5/6,o m 3 /h Fig.6. Flow sensor of the heat meter SKU-03, qp=15,o m 3 fh Breslaujos g. 3. LT Kaunas, tel.: (8-37) , fax: (8-37) , e-rnail: testlab@mail.lei.lt,

3 LABORATORYOFHEATEQUIPMENT Appendix to EC-Type Examination Certificate Nr. LT-1621-MI004-00S Type number combination of the heat meter SKU-03 Page 3 of 9 pages Type Installation of the flow sensor: Code In supply pipe 1 In return pipe 2 Destination of the meter: Code Meter for heating 1 (for measurina heatina energv onlv) Meter for heating and cooling 2 (for measuring heating and coollna eneray),-:r I SKU atio of flow-rate limits (qjqj): Limits of temperature differences Code 100 ( ) K ( ) K ( ) K ( ) K 4 I ,... Flow sensor: Perm. flow-rate, m"/h Overalllength, mm End connections Code 0,6 110 Go/.. 1 1,0 110 Go/.. 2 1,5 110 Go/.. 3 2,5 130 GI 4 3,5 260 G1Y.. 5 6,0 260 G1Y ,0 300 G2 7 10,0 300 DN ,0 270 DN50 9 Communication interface: None M-bus CL RF module 868 MHz Code o Measurand sensor The heat meter hardware consists of an ultrasonic flow sensor and heat meter calculator with the connected temperature sensors. The calculator measures the resistance of type approved pair of temperature sensors with Pt500 elements and converts it to temperature according to formulas of EN :2008. The calculator also measures the volume of the heat-conveying liquid by processing signals, received from the ultrasound transducers of the flow sensor. Breslaujos g. 3. LT Kaunas, tel.: (8-37) , fax: (8-37) , testlab@mail.lei.lt,

4 LABORATORYOFHEATEQUIPMENT Page 4 of 9 pages 1.3 Measurand processing The energy, consumed for heating (cooling), is calculated by integrating the temperature difference and the volume of the heat-conveying liquid over time. The temperature difference is calculated from the resistance of the temperature sensors pair, connected to the calculator. Integrated software version ofheat meter is "Soft 0.06". 1.4 Indication of the measurement result The accumulated quantity of thermal energy is presented on the display in the kwh. Other units (MWh, Gcal, GJ) can be chosen too. 1.5 Optional equipment and functions subject to MID requirements 1.6 Technical documentation Technical description, operating instruction, certificate PLSKU03VOl, l. Description of the integrated software structure PIASKU03MIDV01, Other reference documents on which basis this certificate is issued, are stored in a file Nr.LEI-12-MP Integrated equipment and functions not subject to MID 2 Technical data 2.1 Rated operating conditions Measurand Thermal (cooling) energy, calculated from the measured volume of water and the measured difference of water temperature in flow and retum pipes Measurement range For calculator: - limits of temperature E> min - E> max: ( )OC; - limits of temperature difference ~E> min - ~E> max: ( ) K or ( ) K - depending on the lower limit of the temperature difference of the connected pair oftemperature For flow sensor: Temperature limits ofheat conveying liquid: - for meters qp~ 2,5 m 3 fh E> q = 5 C 130 C; - for meters qp~ 3,5 m 3 fh E> q = 10 C.l30 "C, sensors. Breslaujos g. 3. LT Kaunas, tel.: (8-37)401863, fax: (8-37) , testlab@mail.lei.lt,

5 LABORATORYOFHEATEQUJPMENT issued 29 th Apri12011 Heat meter flow sensor technical data are presented in Table 1: Page 5 of9 pages Table 1 Flow-rate, mvh End connection Permanent ą p Maximum ąs Minimum ąj Overalllength, mm G3/4" 0,6 1,2 0, G3/4" 1,0 2,0 0, G3/4" 1,5 3,0 0, G3/4" 1,5 3,0 0, GI" 2,5 5,0 0, GI" 2,5 5,0 0, GI 1/4" 3,5 7,0 0, GI 114" 6,0 12,0 0, GI 114" 6,0 12,0 0, G2" ordn40 10,0 20,0 0, DN50 15,0 30,0 0, DN50 15,0 30,0 0, Accuracy c1ass Accuracy c1ass- 2 according to LST EN : Environmental conditions 1Influence quantities Ambient temperature +5 C to +55 C; Humidity non condensing; Location c1osed; Mechanical environment c1ass Ml; Electromagnetic environment c1ass E Other operating conditions Maximum admissible working pressure (c1ass PN) The maximum admissible working pressure ofheat meter is 16 bar (PNI6) Mounting position of the flow sensor of the heat meter Flow sensor can be mounted both vertically and horizontally. 3 Interfaces and compatibility conditions 3.1 Compatibility conditions 2 extra pulse inputs with programmable pulse value, c1ass of pulse input device -IB according to LST ENI434-2+AC: temperature measurement channels for connecting temperature sensors with Pt500 sensing elements and 2-wire connection method. Breslaujos g. 3. LT Kaunas, tel.: (8-37) , fax: (8-37) , testlab@mail.lei.lt,

6 LABORATORYOFHEATEQUIPMENT Page 6 of 9 pages 3.2 Interfaces Integrated optical communication interface according to LST EN :2003 requirements. 2 pulse outputs for remote data reading. Class of pulse output device-ob according to LST EN AC:2007. Additionally (as optional plug-in modules): - M-bus; - CL; MHz RF radio module. 4 Requirements on production, putting into use and utilization 4.1 Requirements on production No special requirements identified. 4.2 Requirements on putting into use The heat meter SKU-03 must be installed in accordance with the requirements of documents, listed in 1.6. Necessary straight line length for flow sensor installation in pipeline: no requirements for straight pipeline length in upstream and downstream q > 6 m3/h u stream straight pipeline len h ~ 5 x DN and downstream ~ 3 x DN Initial verification test of flow sensor can be carried out with cold water (25 ± 5) C. 4.3 Requirements for utilization 5 Control of the measuring process after tasks of the instrument in use 5.1 Documentation of the procedure 5.2 Special equipment or software 5.3 Identification of hardware and software 5.4 Calibration-adjustment procedure Breslaujos g. 3. LT Kaunas, tel.: (8-37) , fax: (8-37) , testlab@mail.lei.lt,

7 L4BORATORYOFHEATEQUIPMENT issued 29 th Apri12011 Page 7 of 9 pages 6 Security measures 6.1 Seating The following heat meter calculator sealing is provided: - manufacturer adhesive seal-sticker on the fixing bolt of electronic module and access to the adjustment activation jumper (see Fig.7, pos.l) and on the fixer of the cover protecting electronic module (see Fig.7, pos.2); - two hanged seals on the fixers of junction of the case and cover of the calculator (see Fig. 7, pos.3) are arranged after installation. 1 2 Fig.7. Sealing of the calculator ofthe heat meter SKU-03 The following flow sensor sealing is provided: - manufacturer adhesive warranty seal-sticker on the bolts of the cover (see Fig.8, Fig.9, Fig.lO, Fig.ll); Manufacturer's adhesive warranty seal Manufacturer's adhesive warranty seal Fig. 8. Sealing of flow sensor of the heat meter SKU-03, ąp=o,611,0i1,5/2,5 rnvh Fig. 9. Sealing of flow sensor of the heat meter SKU-03, ąp=3,5/6,o rnvh Breslaujos g. 3. LT Kaunas, tel.: (8-37)401863, fax: (8-37) , testlab@mail.lei.lt,

8 LABORATORY OF HEAT EQUIPMENT Page 8 of9 pages Manufacturer's adhesive warranty seal Manufacturer's adhesive warranty seal Fig. 10. Sealing of flow sensor of the heat meter SKU-03, qp=10,o m 3 fh Fig. 11. Sealing of flow sensor of the heat meter SKU-03, qp=15,o mvh I(~(sI a) Manufacturer security seal- adhesive sticker I'A2EIDUS GARAHTIJA NEGALIOJA WARRANTY VOlD le' REMOVEO / AXISlndustr1es 11 / b) Manufacturer warranty seal- adhesive sticker Fig.12. Examples of security seals 6.2 Data logger Archive data retention time is at least 12 years. 7 Marking and inscriptions 7.1 Information to be borne by and to accompany the measuring instrument The following information shall appear in legible and indelible characters on the heat meter calculator casing or his label: EC-type examination certificate number (LT-1621-MIO04-005); manufacturer name or his trade mark; identity marking (type designation and type number); year of manufacture and serial number; limits of the temperature; limits oftemperature differences; limits of heat conveying liquid temperature; Breslaujos g. 3. LT Kaunas, tel.: (8 37) , fax: (8 37) , e-rnail: testlab@mail.lei.lt,

9 LABORA TORY OF HEAT EQUIPMENT Page 9 of 9 pages type of temperature sensors (pt500); limits of flow-rate: maximum ą s' permanent ą p and minimum ą;; the maximum admissible working pressure (PN class); flow sensor to be installed in the flow or retum; accuracy class; climatic class; electromagnetic class; mechanical class. Arrow to indicate the direction of the flow shall appear on flow sensor housing. 7.2 Conformity marking In addition, the label of heat meter calculator should contain the following marking: - "CE" marking; - metrology marking, consisting of the cap ital letter "M" and the last two digits of the year of its affixing, surrounded by a rectangle; - identification number of the notified body, which carried out the conformity assessment. 8 List of the drawings attached to the certificate. Drawings are not added. 9 Certificate history Issue Nr. Date Description LT-1621-MI Type examination certificate first issued Breslaujos g. 3. LT Kaunas, tel.: (8-37) , fax: (8-37) , testlab@mail.lei.lt,