Landis Gyr W370 Ultrasonic Water Meter Instruction Manual

W370 Ultrasonic Water Meter
Instruction Manual

W370 Ultrasonic Water Meter

Ultrasonic Water Meter
ULTRAWATER® W370
ULTRAWATER® W270

Operating and Installation Instructions

Note: In the following text, the term meter refers to both the cold-water meter and the hot water meter.

General information

The meter left the factory in a faultless condition where safety and hygiene are concerned.
Calibration relevant security seals on the meter must not be damaged or removed. Other wise the guarantee and calibration validity of the meter will lapse.
Further technical support will be provided by the manufacturer on request.

Safety information

The meter may only be used in bullding service engineering systems and only for the applications described.
The local regulations (installation etc.) must be adhered to.
Adhere to the operating conditions according to the dial plate during use. Non-adherence can cause hazards and the guarantee will lapse.
In no case do any welding, drilling, or soldering near the meter.
Do not lift the meter by the electronic unit.
Protect the meter against damage from shocks or vibrations at the mounting place.
Only personnel, trained in the installation and operation of meters in building service engineering systems, may install or remove the meter.
The meter is suitable for drinking water. Take necessary hygiene measures during installation:

• Only remove the meter from its individual packaging at the mounting place.
• Wear disposable gloves.
• Clean and sanitize the relevant tools before installing the meter.
• Protect the measuring tube and thread surfaces from dirt and contact.

Be aware of sharp edges on the thread, flange and measuring tube.
After installing the meter, check the leak-tightness of the system.
As far as disposal is concerned, the meter is a waste electronic appliance in the sense of European Directive 2012/19/EU (WEEE) and it must not be disposed of as domestic waste. The relevant national, legal regulations must be observed as the appliance must be disposed of via the channels provided for this purpose. The local and currently valid legislation must be observed.
You can return the lithium batteries to the manufacturer for appropriate disposal following use. When shipping 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 contact with water or expose them to temperatures above 80 °C.
The meter does not have any lightning protection. Ensure lightning protection via in-house installation.

Scope of delivery

• Water meter
• Operating and Installation Instructions
• 2 flat seals
• Optional backflow preventer

Additional elements

Sealing clamp DN15
Sealing clamp DN20
Backflow preventer DN15
Backflow preventer DN20
Flat seal DN15
Flat seal DN 20
Meter bolting DN 15 lead-free
Meter bolting DN 20 lead-free

Installation conditions

Water temperature
Cold water meter T50| 0.1…50 °C
Water temperature
Hot water meter T30/70| 30…70 °C

Environmental conditions

Installation

Note: During installation, adhere to the notes from chapter 1 and 2.
Note: Observe the dimensions of the meter and check wither there is sufficient space available.
Note: The meter must not be exposed to stress or forces caused by pipes or fittings. If this cannot be guaranteed permanently, improve the installation site  or fix the pipes, e.g. with suitable connection brackets.

To install the meter, proceed as follows:

1. Close all valves before and after the mounting place.
2. If necessary, remove the old meter. Collect the excess water in a suitable container.
3. Remove the old sealings and residues of Teflon tape and hemp.
4. Clean the union nuts thread and the sealing surfaces at the screw connections.
5. Install the provided sealing at the threaded connector of the meter. Check if the sealing is properly positioned and is free of damage.
6. When using a backflow preventer, check its correct placement at the meter (see chapter 7).
7. Fit the meter horizontally or vertically so that the arrow on the housing and the flow direction match.
8. Tighten the screw connections. Note and use the tightening torques specified in the following table and the corresponding angle from contact of the union nut with the gasket:
   Flat gasket| Novapress basic
   ---|---
   Meter thread| ¾‘‘| 1‘‘
   Tightening torque| 10 – 15 Nm| 25 – 30 Nm
   Angle from contact| 45 – 60°| 45 – 60°
9. Pay attention to the correct placement of the union nut.
10.  Ensure that all connectors are tightened securely and the meter is properly installed.
11. Open all valves before and after mounting place and vent the installation.
12. Check the installation for leakage.
13. Seal the screw connection to protect it against manipulation (see chapter 8).

Backflow preventer

Sealing

Interface and Communication

The meter is equipped with an NFC interface according to ISO/IEC 14443 as standard.

Parameterization via Ultra Connect

The meter can be read out and parameterized via the Ultra Connect App. Further information can be found in the meter ‘s Technical Description.

Automatic Commissioning

Note: The meter can be activated manually via the Ultra Connect app. Further information can be provided by request.

• The meter automatically starts measuring and communication when the measuring tube is filled with water.
• The display SLEEP changes to a regular display.
• With the display indicates the correct flow direction, and the flow display shows the current flow rate.

Display

Note: To prevent reading errors, the decimal places of the values displayed are superscripted.

Error messages

The meter continuously runs a self-diagnosis and can thus recognize and display various error messages.

Error icon| Error| Cause / Solution| Reset error via UltraConnect
---|---|---|---
| Leakage| Cause: Permanent flow.
Solution: Check the installation for leakage.| X
| Pipe burst| Cause: Permanent high flow.
Solution: Check the installation for pipe burst.| X
| Internal error| Cause: Meter failure.
Solution: Contact the Service.| –
| Meter dry| Cause: No water ca be detected in the pipe.
Solution: Vent the installation.| –
| Manipulation| Cause: An access without the correct certificate was detected.
Solution: Check the  meter for manipulation.| X
| Stagnation| Cause: No flow can be measured.
Solution: Rinse the installation.| –
| Frost / Ice| Cause: Water temperature is too low.
Solution: Protect the  meter from frost or ice.| X
| Reverse flow| Cause: Backflow against installation direction.
Solution: Check the installation direction.| –
| Battery status| Cause: Battery status for >180 days remaining.
Solution: Plan to replace the meter.| –
| Critical battery| Cause: Voltage below threshold.
Solution: Replace the meter.| –
| Calibration mode active| Cause: Calibration seal broken.
Solution: Contact the Service.| –

Technical Data

Note: The information on the meter must be observed!
Metrology

Installation

Environmental Conditions

Power supply

Communication

Landis &Gyr GmbH
Humboldtstraße 64
90459 Nurnberg

Documents / Resources

| Landis Gyr W370 Ultrasonic Water Meter [pdf] Instruction Manual
W270, 2WR6, W370 Ultrasonic Water Meter, Ultrasonic Water Meter, Water Meter, Meter
---|---

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