PREPAID WATER METER (DN15~25)

PREPAID WATER METER  (DN15~25)

Contents

Ⅰ. Description

Ⅱ. Product Features

Ⅲ. Technical parameters

Ⅳ. Operating Instructions

Ⅴ. Installation Instructions

Ⅵ. Malfunction Removal

Ⅶ. Transport & Storage

Ⅷ. Warranty

Ⅰ. Description

The prepaid water meter is new type of smart water meter that uses modern

microelectronic technology, modern sensing technology, and smart IC card

technology to measure water consumption and conduct water data transmission

and settlement transactions. It adopts a pre-paid method, which not only

achieves reasonable charging, it will also automatically close the valve when the

meter is in arrears.

Ⅱ. Product Features

1.Low start-up flow;

2.Base meter adopts of 4-digit pointer, 5-digit character roller for easy and clear

reading；

3.Valve adopts rotary-wing construction, with small switch torture distance;

4.Long lifespan, reliable,integated meter body and valve, rational construction;

5.One-card, one-meter with encipherment protection, security guaranteed;

valve automatically shut off when impacted by strong magnetic field action

6.Multiple customer type optional, 3 ladder water volumes settable, 3 ladder

unit prices settable

7.    Leakage flow ≤2L/h

8.     

Ⅲ. Technical Parameters

1. Flow Range

2. Relative Error

Maximum allowable error Q1 – Q2 ± 5%.

Maximum allowable error Q3 – Q4, water temperature ≤30°, max permissible

error ± 2%; water temperature ＞30°, max permissible error ± 3%.

3.Working temperature:（0.1～30） ℃.

4.Working pressure: ≤1.0MPa.

5.Pressure loss: ≤0.063MPa

6.Installation environment: Class B, indoor, fixed type installation

7.Electromagnetic environment: E1 - residential, commercial, light industrial

8.Working Current: Static: ＜10uA

9.Flow profile sensitivity class: U10, D5

10.Storage ambient temperature:（5～50） ℃

12. Installation size

Ⅳ. Operating Instructions

1. Users should be account opening, archiving at the water management office

when using the water meters for the first time, buying subscriber card with

corresponding water volume. The subscriber card can be used on specified

water meter only during the first use lest for unnecessary loss.

2. Tap the user card on the touch area, it means card reading is being

processed when the LCD shows 【rd IC】; If it shows【END】, it means card data

storage completed; If it shows【Err XXX】 means error arises, Please retry, if

error continues, contact the management department then; (Light will flash

when card data storage is in process)

3. The water meter automatically shuts down the valve and sends alarm when

the remaining water volume of the meter less than the warning value set theuser can put again the card in water meter touch area to open the valve, the

water meter continues to work. The valve of meter is automatically shut down

when the remaining volume decreases to zero, the meter can be opened only

after the subscriber buy the credits and do the top-up. By that reminds the

subscriber of timely top-up.

4. The water meter will shut the valve off when under voltage arises, and the

valve can be opened only after the malfunction is removed.

5. The Card reissue need to be handled with at the management endpoint in

case the card is lost, and in the meantime, the previous subscriber card will

automatically be invalid;

6. Use a info transfer card to have info of water meter transferred into a new

meter when current water meter need to be replaced, the subscriber card

can continue to work.

8. The pointer of water meter will slightly fluctuate when meter under unused

condition due to the water pressure in the pipeline is not stable or any other

reasons, this is the normal phenomenon.

Ⅴ. Installation Instructions

1. The water meter with proper caliber should be choosed according to

diameter of pipeline at installation site and principle of flow ≤ usual flow of

meter

2. 10×DN(Water meter diameter) straight pipe before meter and 5×DN

straight pipe after meter should be reserved.

3. The water meter should be installed in a location where the

administrator can easily read the meter. and avoid being approached by

solarization, flooding ,pollution and foreign magnetic interference. When the

temperature is too low (<0 °C), the administrator should take care to keep the

water meter warm to avoid damage to the water meter.

4. Debris like sand and grits should be prevented from entering the pipe

line when installation(especially with new pipe section),which might lead to

measuring faults and valve blockage

5. For accurate measurement’s sake,during installation,pipe line at outlet

flow should be installed 0.5m higher than meter,valve should be installed at pipeline before water meter so that water supply can be stopped when meter

need to be dismounted .Water meter shouldn’t be directly connected to the

pipeline, movable joints like couplings ,connecting nuts ,connecting pipe

sealing washer are needed. Rough handling is forbidden when dismounting.

6. Indicating arrow engraved on meter should comply with direction of

water flow when installation. Installation must follow horizontal or vertical

type signed on dial register and let dial face up.

7. Installation diagram:

Ⅵ.Malfunction Removal

Note：The meter is supposed to be changed by specially-assigned person.

Any replacement done by user is forbidden. Each meter with extension

piece(2 couplings, 2 connecting nuts and 2 seal rings).

Ⅶ. Transport & Storage

1. Transport: The product should be transit by vehicles without strong

vibration after the encasement and avoid being approached and affected by

rains, frost, fog, placing as per sign―This is necessary to prevent damage

from crushing and impact. Environmental conditions of transport to comply

with JB/T9329 standard.

2. Storage: The meters should be stored at dry, ventilated indoor

environment and in which forcible magnetic field action doesn’t exist and air

must be of no corrosive medium. Ambient temperature 5℃～50℃, relative

humidity ≤90%

Ⅷ. Warranty

One year free maintenance service offered with the smart water meter

since the delivery date. Lifetime maintenance, however, damage caused by

the following operations excluded in the warranty:

1. The seal marks of the water meter parts is opened or damaged

2. Parts of the water meter are humanly damaged

3. Parts of the water meter are approached by sun light, flooding, freezing

and chemical pollutions

4. No debris and impurities are removed from the pipeline, causing the valve

in the water meter to clog

5. Damages and faults due to choosing the inappropriate product model No.

Remarks: The battery of the water meter is supposed to be changed by

specially assigned person.

Contact the factory if under voltage arises