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General notes 

 

4/21 

 

General notes 

 

Note

:

 

In the following text, the term meter refers to heat meter and 

cooling meter, unless they are otherwise differentiated.

 

 

Note:

 The meter cannot be opened without damaging the security 

seal.

 

The meter is used to measure the consumption of heating or cooling energy in 
systems operating with water. 
The meter consists of a flow part, two temperature sensors and an electronic 
unit that calculates the energy consumption from the volume and temperature 
difference.  
The meter combines modern microcomputer technology with innovative ultra-
sonic measurement technology in all-metal. 
This technology is thus wear free, robust and largely maintenance free. High 
precision and long-term stability guarantee precise and equitable cost ac-
counts. 

Other available documents 

 

Operating Instructions T350

 

(2WR6

…)

 

 

Installation Instructions T350

 

(2WR6

…)

 

 

Illustrated catalogue  

 

Additional information is available on request. 

Содержание ULTRACOLD 2WR6 Series

Страница 1: ...ULTRAHEAT T350 2WR6 ULTRACOLD T350 2WR6 Technical Description 32 14 101 001 b Date 19 03 2018 Landis Gyr GmbH Ultrasonic heat and cooling meter T350 2WR6 Residential and district heating...

Страница 2: ...verall length 110 mm 130 mm 190 mm Suitable for small mounting locations due to compact construction Construction for residential heating for 105 C and for district heating for 130 C 15 monthly values...

Страница 3: ...________________________________________ 13 User loop_______________________________________________________________14 Service loop_____________________________________________________________14 6 2 P...

Страница 4: ...two temperature sensors and an electronic unit that calculates the energy consumption from the volume and temperature difference The meter combines modern microcomputer technology with innovative ultr...

Страница 5: ...and cooling systems may install and remove the meter Only install or remove the meter when the pipes are de pressurized After installing the meter check the leak tightness of the system Warranty and...

Страница 6: ...please observe legal regulations in particular those governing the labelling and packaging of hazardous goods Do not open the batteries Do not bring batteries into con tact with water or expose to te...

Страница 7: ...als may be different LCD 7 digit Optical interface Standard EN 1434 3 Communication Optional M Bus or pulse output Protocol IEC 870 300 baud in Nb Separability Always detachable cable length 1 m Tempe...

Страница 8: ...0 5 1 5 1 5 110 G 3 4 3 15 6 150 3 9 1 2 1 1 5 130 G1 3 15 6 160 3 8 1 2 1 5 1 5 190 G1 3 15 6 160 3 8 1 2 1 5 2 5 130 G1 5 25 10 200 5 6 1 8 1 5 2 5 190 G1 5 25 10 200 5 6 1 8 1 5 Tolerance of press...

Страница 9: ...on situations and the following examples of installation Fit the temperature sensors in the same circuit as the meter Seal the temperature sensor and the fittings to protect against manipula tion If y...

Страница 10: ...tes for sensor adapter set A mounting set is included for meters with 5 2 45 mm temperature sen sors With this you can fit the temperature sensor directly immersed into an in sert or a ball valve for...

Страница 11: ...rob lems with condensation Fit the immersion sleeves so that the temperature sensor is positioned vertically downwards or horizontally Note Always install the volume measurement unit on the hot side F...

Страница 12: ...Dimension of electronic unit 12 21 5 Dimension of electronic unit Fig 10 Dimensions of electronic unit Fig 11 Wall adapter view from above and side...

Страница 13: ...ical interface Allows data communi cation with a computer with the necessary service software 3 Calibration rele vant security seal 6 1 Displaying current meter status The meter displays the current m...

Страница 14: ...r 0034321 kWh Energy previous year on set day Previous year 00923 12 m Volumes previous year on set day Previous year 12 Fh Missing hours previous year Previous year C Code input for parameterization...

Страница 15: ...eter can be supplied with power by a battery or by a power supply mod ules as preferred Options 6 years battery 11 years battery Power supply 24 V AC DC 24 V safety extra low voltage Voltage 12 36 V A...

Страница 16: ...e 1 5 m pre assembled PVC LIYY 2 x 0 25 mm2 tin coated ex ternal diameter 3 6 mm Note When reading via M Bus the permissible average reading frequency must not be exceeded 1 every 3 h at 2400 baud 1 e...

Страница 17: ...elivery condition F1 Interruption in the hot side temperature sensor Exchange the meter F2 Interruption in the cold side temperature sensor Exchange the meter F3 Electronics for temperature evaluation...

Страница 18: ...als K Communication Code Without communication interface 0 With pulse output 1 With M Bus 5 Manufacturer s label Code Logo Landis Gyr 00 Other labels on request xx County where used Code Dial plate fo...

Страница 19: ...East English P4C 14 digit is Z Dial plate for Australia English P5C 14 digit is Z Dial plate for Moldavia Romanian P6C 14 digit is Z Dial plate for Spain Spanish P7C 14 digit is Z Dial plate for Serbi...

Страница 20: ...1 5 110 G 3 4 150 3 9 C 2 5 190 G1 210 5 3 D 2 5 130 G1 200 5 6 E The indicated pressure loss of a flow sensor is at nominal flowrate qp With the Kv Factor which defines the flow rate at a pressure l...

Страница 21: ...21 21 Landis Gyr GmbH Humboldtstrasse 64 90459 Nuremberg Germany...

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