UK/0126/0094

MI-001

Issue date: Valid until:

29 July 2020 27 October 2020

Grégory Glas Lead Technical Manager For and on behalf of the Head of Technical Services

0135 NMO I Stanton Avenue I Teddington I TW11 0JZ I United Kingdom

Tel +44 (0) 20 8943 7272 I Fax +44 (0) 20 8943 7270 I Web www.gov.uk/government/organisations/ office-for-product-safety-and-standards NMO is part of the Office for Product Safety & Standards within the Department for Business, Energy & Industrial Strategy

EU-type examination certificate UK/0126/0094 Revision 18 Issued by:

NMO Notified Body Number 0126 In accordance with the requirements of the Measuring Instruments Regulations 2016 (S.I. 2016 No. 1153) which implement, in the United Kingdom, Council Directive 2014/32/EU, this EU-type examination certificate has been issued to:

Arad Ltd. Dalia - Ramot Menashe POB19239 Dalia Israel In respect of a family of cold-water meters, designated Octave, utilising a Ultrasonic measuring element and having a rated permanent flowrate Q3 between 16 m3/h and 1000 m3/h. The necessary data (principal characteristics, alterations, securing, functioning etc) for identification purposes and conditions (when applicable) are set out in the descriptive annex to this certificate. This Revision replaces previous versions of the certificate.

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Descriptive Annex 1 INTRODUCTION This pattern is a family of liquid measuring instruments for measuring the volume of cold water passed through them. They are an ultrasonic, flanged cold-water meter having a Q3 (permanent flowrate) from 40 m3/h for the 40 mm meter to 1000 m3/h for the 300 mm meter, all sizes with a Q3/Q1 turndown ratio of 500 (R500). An example meter is shown in Figure 1 2 FUNCTIONAL DESCRIPTION Octave family are ultrasonic water meters which use the Transit time method. This method is based on the physical phenomena where the speed of an ultrasonic wave propagation is equal to the sum of the speed of the flow and the speed of sound of the media at rest. By measuring the time of the wave propagation of both the upstream and downstream the flow, it is possible to obtain the fluid's velocity along the acoustical beam. 3 TECHNICAL DATA 3.1 Flow designation

Table 1 Related flowrates according to meter size (R500)

Meter Size (mm) 40 50 65 80 100 150 200 Q3/Q1 (R) 500 500 500 500 500 500 500 Q2/Q1 1.6 1.6 1.6 1.6 1.6 1.6 1.6

Q1 Minimum flowrate (m3/h)

0.08 0.08 0.08 0.125 0.20 0.5 0.8

Q2 Transitional flowrate (m3/h)

0.128 0.128 0.128 0.2 0.32 0.8 1.28

Q3 Permanent flowrate (m3/h)

40 40 40 63 100 250 400

Q4 Overload flowrate (m3/h)

50 50 50 80 125 313 500

3.2 Other designations Temperature class: T50 (0.1°C – 50°C) Orientation requirements: None Maximum admissible pressure (MAP) 16 bar Pressure Loss at Q3 0.16 bar max Climatic environment: -25°C to 55°C Mechanical environment: M1 Electromagnetic environment: E1 Location: Open/closed, condensing/non-condensing Reverse Flow: The meter may or may not measure reverse flow

depending on factory set-up - this should be marked on the Data Label

Minimum straight length of inlet and outlet pipe: U0/D0

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4 PERIPHERAL DEVICES AND INTERFACES 4.1 Communication modules are mounted on the Comm. output connector using two screws. One screw cover is sealed as shown in figure 2. Output options are:

• Pulse Output Module • 4-20mA Output Module • AMR Output Module • Encoder Protocol Output Module • Mod Bus • Dry Contact

5 APPROVAL CONDITIONS The certificate is issued subject to the following conditions. 5.1 Legends and inscriptions The instrument bears the following legends: ‘CE’ marking Supplementary metrology marking

Manufacturer’s name, registered trade name or registered trade mark and postal address Identification number of the notified body Permanent flow rate Q3 Flowrate range Q3/Q1 (R)

Serial number Number of the EU-type examination certificate The markings and inscriptions shall fulfil the requirements of Article 8, Article 21, Article 22 and Point 9 of Annex I of Directive 2014/32/EU. 6 LOCATION OF SEALS AND VERIFICATION MARKS

6.1 Securing method (figure 2)

The Octave meter has five plastic seals:

• Two seals are placed on the Sensor Cover Plates screws, one on each plate. On plastic bodies the sensor covers are seals.

• Two seals are implemented on the meter Face Plate. • One seal covers the screw of the Comm. output cover.

6.2 Software Security

The Octave Water Meter incorporates “Built for Purpose “software (Type P). Access to CPU, for software revisions, can only be done via a specific J-Tag connector on the PCB. In order to reach the PCB the meter must be disassembled:

• breaking two (2) seals, • breaching the vacuumed Electronics Compartment.

The present software version 2.08 is shown on the data label (Figure 3).

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6.2.1 Alternative Software version

Having an alternative software version, Ver. 3.15, which supports the measurement of reverse flow. 6.2.2 Alternative Software version for Octave 2

Having an alternative software version, Ver. 3.16. Having an alternative software version, Ver. 3.17. Having an alternative software version, Ver. 4.00 Having an alternative software version, Ver. 4.01

6.2.3 Alternative Software version for Octave 3

Having an alternative software version, Ver. 4.02. 6.3 Location of verification markings

The verification markings identified in 5.1, and serial number, are permanently marked on the data label which is positioned on the face of the meter (Figure 3). 7 AUTHORISED ALTERNATIVES

7.1 50 mm Threaded Body Meter

Having a 50mm meter with the same technical specifications as described in section 3, but with a threaded connection replacing the flanges. 7.2 40 and 50 mm Plastic Body (Figure 4)

As described in the certificate but having a plastic body meter with the following specifications.

Meter Size Q3/Q1 (R) Q3 m³/h PRESSURE LOSS

U/D

40mm 250 40 Δp 16 U0,D0 40mm 500 40 Δp 16 U0,D0 50mm 500 40 Δp 16 U0,D0

Meter Size 40 mm 40 mm 50 mm Q3/Q1 (R) 250 500 500 Q2/Q1 1.6 1.6 1.6

Q1 Minimum flowrate (m3/h) 0.16 0.08 0.08

Q2 Transitional flowrate (m3/h) 0.256 0.128 0.128

Q3 Permanent flowrate (m3/h) 40 40 40

Q4 Overload flowrate (m3/h) 50 50 50

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7.3 250 mm Meter Having the flanged design meter as described in section 1 but with 250 mm diameter having either a Q3/Q1 turndown ratio of 500 (R500) or 315 (R315), with the following related flowrates:

Meter Size 250 mm 250 mm Q3/Q1 (R) 315 500 Q2/Q1 1.6 1.6

Q1 Minimum flowrate (m3/h) 2 2

Q2 Transitional flowrate (m3/h) 3.2 3.2

Q3 Permanent flowrate (m3/h) 630 1000

Q4 Overload flowrate (m3/h) 787.5 1250

7.4 300 mm Meter

As described in 7.3 above but with flanges of 300 mm, all the related flowrates are identical. 7.5 Octave 2 As described in the certificate but having alternative internal electronics. The only visible difference to the meter is the software version number change as shown on the label. See section 6.2.2. The CPU and Water Measurement Unit have both been changed. The changes are documented in the document folder retained by NMO. 7.6 Octave 2 Hardware version 2.4 As described in the certificate but having alternative internal electronics and the following additional functionality:

The only visible changes are to the LCD display, see figure 5, and the software version number change as shown on the label. See section 6.2.2. The CPU and Water Measurement Unit have both been changed. The changes are documented in the document folder retained by NMO. 7.7 Protective Crown As described in the certificate but having a protective crown to prevent vandalism as shown in figure 6.

NFC inductive Communication

Add the ability to communicate (set/get parameters of the meter) throught inductive Communication

Shabat mode New measurement scheme for shabat. Vaild only for the Israeli market

LCD Add new icons functionality

Data logger + Real time clock Add ability to save flow and volume records/alarms/histograms

Tamper Add vandal detection option ModBus Add the ability to communicate (set/get parameters of the

meter) through ModBus Communication

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7.8 Additional mark Having the additional mark INSA on the data label as shown in figure 7. Having the additional mark WaterTech on the data label as shown in figure 11. 7.9 Stainless Steel Body (Figure 8) As described in the certificate but having a Stainless Steel meter with the following specifications:

Meter Size (mm) 50 65 80 100 150 Q3/Q1 (R) 500 500 500 500 500 Q2/Q1 1.6 1.6 1.6 1.6 1.6

Q1 Minimum flowrate (m3/h)

0.08 0.08 0.125 0.20 0.5

Q2 Transitional flowrate (m3/h)

0.128 0.128 0.2 0.32 0.8

Q3 Permanent flowrate (m3/h)

40 40 63 100 250

Q4 Overload flowrate (m3/h)

50 50 80 125 313

7.10 Without flow straightener (Figure 9) As described in the certificate but without an integrated flow straightener. 7.11 Meters with turndown ratio of 80 (R80) As described in the certificate but with the following specifications:

Meter Size (mm) 40 50 65 80 100 150 200 250 300 Q3/Q1 (R) 80 80 80 80 80 80 80 80 80 Q2/Q1 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 Q1 Minimum flowrate (m3/h) 0.5 0.5 0.5 0.8 1.25 3.125 5 12.5 12.5

Q2 Transitional flowrate (m3/h) 0. 8 0. 8 0. 8 1.3 2.0 5.0 8 20 20

Q3 Permanent flowrate (m3/h) 40 40 40 63 100 250 400 1000 1000

Q4 Overload flowrate (m3/h) 50 50 50 80 125 313 500 1250 1250

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7.12 Meters with turndown ratio of 200 (R200) As described in the certificate but with the following specifications:

Meter Size (mm) 40 40 50 50 Q3/Q1 (R) 200 200 200 200 Q2/Q1 1.6 1.6 1.6 1.6 Q1 Minimum flowrate (m3/h) 0.08 0.125 0.08 0.125

Q2 Transitional flowrate (m3/h) 0.128 0.12 0.128 0.2

Q3 Permanent flowrate (m3/h) 16 25 16 25

Q4 Overload flowrate (m3/h) 20 31.25 20 31.25

7.13 Octave 3 Hardware version 3.0 As described in the certificate but having alternative internal electronics and the following additional functionality:

* Performance not part of this approval. The LCD display is the same as shown in figure 5 and the software version number is shown on the label (Figure 3), see section 6.2.3. The CPU and Water Measurement Unit have both been changed. The changes are documented in the document folder retained by NMO. 7.14 DN40 and DN50 Stainless Steel Body with threaded connections As described in the certificate but having a stainless steel body with threaded connections in DN40 and DN50 sizes. 7.15 Lower value of Q3/Q1 (R) For each approved value of Q3, a lower value of Q3/Q1 (R) may be chosen from the following values: 40, 50, 63, 80, 100, 125, 160, 200, 250, 315, 400, 500.

NFC inductive Communication

Add the ability to communicate (set/get parameters of the meter) throught inductive Communication

Shabat mode New measurement scheme for shabat. Valid only for the Israeli market

LCD Add new icons functionality

Data logger + Real time clock Add ability to save flow and volume records/alarms/histograms

Tamper Add vandal detection option ModBus Add the ability to communicate (set/get parameters of the

meter) through ModBus Communication Pressure Sensor* Add the option to measure water pressure

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7.16 DN80 - DN200 High Flow (Full Bore) stainless steel body (Figure 12) As described in the certificate but having an increased bore dimension in DN80 to DN200 sizes. 7.16.1 Flow designations

Meter Size (mm) 80 80 100 100 150 150 200 200 Q3/Q1 (R) 250 500 250 500 250 500 250 500 Q2/Q1 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 Q1 Minimum flowrate (m3/h) 0.64 0.32 1.0 0.5 2.52 1.26 4 2

Q2 Transitional flowrate (m3/h) 1.024 0.512 1.6 0.8 4.032 2.016 6.4 3.2

Q3 Permanent flowrate (m3/h) 160 160 250 250 630 630 1000 1000

Q4 Overload flowrate (m3/h) 200 200 312.5 312.5 787.5 787.5 1250 1250

7.16.2 Other designations Pressure Loss at Q3 0.1 bar max Minimum straight length of inlet and outlet pipe: U3/D3 8 SUPPORTING DOCUMENTATION

8.1 The technical file holding supporting documentation is held at NMO. 9 ILLUSTRATIONS Figure 1 Octave Meter (inc. dial face and markings) Figure 2 Sealing Figure 3 Data label Figure 4 Octave meter with Plastic Body Figure 5 New LCD display and key for Hardware Version 2.4 Figure 6 Protective Crown Figure 7 Additional mark data label Figure 8 Example of Stainless Steel Body Figure 9 Without flow straightener Figure 10 Data Label Full Bore Figure 11 Additional mark data label

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10 CERTIFICATE HISTORY ISSUE NO. DATE DESCRIPTION UK/0126/0094 01 November 2010 Certificate first issued

UK/0126/0094 Revision 1

17 August 2011 Section 3.1; 2½” (65mm) meter added Section 3.2; pressure loss corrected to 0.16 bar and reverse flow allowed. Section 6.2.1 added; alternative software version Addition of Section 7 Authorised alternatives & Section 7.1; Threaded body 2”(50mm) meter added. Subsequent sections renumbered.

UK/0126/0094 Revision 2

17 January 2012 Front Page and section 1 maximum Q3 of 400 m2/h added Section 3.1, Table 2, 6“(150mm) and 8” (200mm) meter sizes added.

UK/0126/0094 Revision 3

12 April 2013 In the entire Certificate all meter sizes converted to metric Section 3.2, Installation Requirements added Section 7.2 Plastic body 40 and 50 mm added

UK/0126/0094 Revision 4

21 June 2013 Section 3.2 wording changed from “installation requirements” to “Minimum straight length inlet and outlet” Section 7.3 added 250 mm meter size. Front page maximum Q3 updated to 1000 m3/h

UK/0126/0094 Revision 5

13 August 2013 Section1 updated from 40 mm to 300mm Section 6.2.1 removed "00" out of software version 3.15 Section 6.2.2 Alternative software for Octave 2 added Section 7.4 300 mm meter added Section 7.5 Octave 2 meter added Section 8 Supporting Documentation added, subsequent sections renumbered Figure 3 Data label added for SW 3.16

UK/0126/0094 Revision 6

01 August 2014 Section 6.2.2 Alternative software version 3.17 added. Figure 3 Data label added for SW 3.17

UK/0126/0094 Revision 7

01 October 2014 Section 6.2.2 Alternative software version 4.00 added. Figure 3 Data label added for SW 4.00 Section 7.6 Octave 2 Hardware version 2.4 and associated figure 5 added.

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UK/0126/0094 Revision 8

13 March 2015 Section 7.7 Protective Crown, and Section 7.8 Additional manufacturer added with associated figures.

UK/0126/0094 Revision 9

18 May 2015 Section 6.2.2 Alternative software version 4.01 added.

UK/0126/0094 Revision 10

20 July 2015 Section 3.1, 40 mm meter added. Section 4.1 Mod Bus; Dry Contact Section 9 Figure3: Data label SW 4.01 Section 7.2 40mm R500 meter added.

UK/0126/0094 Revision 11

14 January 2016 Figure 4 Updated: 15 years for SW version 4.00. Figure 7 Updated: 15 years for SW version 4.00, additional label.

UK/0126/0094 Revision 12

16 February 2016 Addition of Section 7.9 & Figure 8 - Stainless Steel Body

UK/0126/0094 Revision 13

10 February 2017 References to 2004/22/EC replaced with references to 2014/32/EU. Section 5.1: postal address added. Section 7.10 added. Section 7.11 added.

UK/0126/0094 Revision 14

16 August 2017 Section 7.12 added.

UK/0126/0094 Revision 15

29 January 2018 Section 6.2.3 and 7.13 added. Section 8 reference to TRIM file removed. Figure 3 Data label added for SW 4.02

UK/0126/0094 Revision 16

11 May 2018 Front page: minimum value of Q3 changed from 40 to 16 m3/h (see section 7.12) Section 7.14 added Section 7.15 added

UK/0126/0094 Revision 17

28 June 2019 Section 7.8 modified: reference to “manufacturer” removed, WaterTech added. Section 7.16 added Figure 10 Data label added for Full Bore Figure 11 Additional mark data label added

UK/0126/0094 Revision 18

29 July 2020 Section 7.16 DN80 and construction material added. Section 7.16.1 R250 added to all meter sizes. Figure 12 added.

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Figure 1 Octave Meter

Figure 2 Sealing

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Figure 3 Data Label

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Figure 4 Plastic body example

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Figure 5 New LCD display and key for Hardware Version 2.4

1 Volume accumulator include 9 large digits +3 small digits

2 New Icons

1. - Display volume

2. - Detecting icons

3. - Pulse resolution

4. - Outputs

3 Units 1. - Volume

2. - Flow

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Figure 6 Protective Crown

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Figure 7 Additional mark data label

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Figure 8 Example of Stainless Steel Body

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Figure 9 Without flow straightener

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Figure 10 Data Label High Flow (Full Bore)

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Figure 11 Additional mark data label

Figure 12 Octave High Flow stainless steel

Crown copyright 2020 NMO Office for Product Safety & Standards Department for Business, Energy & Industrial Strategy This material may be freely reproduced except for sale

Descriptive Annex1 INTRODUCTION2 FUNCTIONAL DESCRIPTION3 TECHNICAL DATA