Main Functionalities

n   Electronic module

Ø   Recharge

·         The meter accept the 20 digit tokens for recharge

Ø   Overdraft:

·         The meter is with overdraft function, it is for emergency use, when the credit(water units recharged to the meter) is used up, users are able to starting using the overdraft.

Ø   Step tariff

·         Support 10 steps tariff

Ø   Meter reset

·         The meter can be reset to factory mode via token

Ø   Recharge limitation

·         The meter is with recharge limitation for customers

Ø   Anti-tamper

l   Removing battery: When the battery is removed from the meter, the valve will be closed automatically

l   Magnetic field interference: When there is magnetic field closed to the meter, the valve will be closed automatically.

l   Lead sealing meter cover screw: The screws is protected by the lead dealing, So customer are not able to open the meter.

Ø   Alarm:

l   Low battery: When battery power drops to 20%, the Meter will give indications to replace the battery. When the battery power is used up, the valve will be closed automatically Customer can enter a code to open the vale and continue using the water temporary

l   Low credit: When the credit is lower than a certain value, the valve will be closed automatically to remind that that balance is low. Customer need to recharge their meter

Ø   Real Time Clock(RTC)

l   The meter is with a real time clock to record the events happened in the meter.

Ø   Event record

l   Tamper record

l   Error record

l   Battery replacement

l   Water leakage

Ø   Monthly bill

l   The monthly bill is storage in the meter for 15 days and can be transferred to AMR system via Lora/RF communication

Ø   Hourly Consumption

l   The meter records the water consumption each hour to detect the leakage.

Ø   Switchable prepaid/postpaid

l   The mode of prepaid and postpaid of the meter is switchable

n   Meter cover

Ø   Protection level

l   IP68

Ø   Material

l   Polycarbonate + Fiber glass

l   Upper cover with a transparent window

n    Communication

Ø   Lorawan(Downlink)

·         The meter is with Lora communication which communicate with the customer interface unit(CIU), HHU

l   Communication range up to 1 km

Ø   LoraWAN (uplink)

·         The meter is with LoraWan communication which communicate with the LoraWan gateway(base station) and link to the server via GPRS

·         Communication range up to 5km in open area;

n   Valve control

l   Valve type: Ball valve, it is a lockable ball valve powered by a electrical machinery

l   Integrated with meter body and is not removable

l   Valve lifetime: 10,000 times open and close

l   Valve will be closed when low battery

l   Valve will be closed when there is tamper

l   Valve will be closed when there is no credit

l   Valve will be closed and opened automatically each 20 days to avoid the incrustation blocking the valve   

Ø   Battery

l   ER18505 Lithium battery, replaceable

l   Qty: 1 pc

l   Battery voltage: 3.6V

l   Battery Volum: 4,200 mAh

l   Battery life: more than 6 years

l   Battery protected by waterproof insulating glue

Ø   Meter LCD Display

·         Display type: Segment display

·         Length of the number: 7 digits

Ø   Display information

l   Magnetic tamper

l   Error operation

l   Valve blocked

l   Water purchase TOKEN is correct. It will be accepted and “accept” will be displayed

l   Water purchase TOKEN is incorrect. It will be rejected and “reject” will be displayed.

l   When “used” is displayed, it means the TOKEN has been used.

l   When “old” is displayed, it means TOKEN is out of date.

l   Battery low/damage warning

l   Valve open

l   Valve Close

l   NULL

l   Total Usage

l   Total Purchase

l   Remain Water

l   Current monthly consumption

l   Water leakage

l   Tariff details

l   Temper status

l   Purchase times

l   Monthly Consumer consumption profile

l   Leakage detection

l   Overdraft used/emergency water used

l   Emergency water(on/off)

l   Meter number

Ø   Friendly time

l   The meter will not close valve during the holiday, weekend and off-duty time.

n   Machanical meter

·         Protection level: IP68

·         Meter type: rotary wing type, multi-jet

·         Class B, R100

·         Material: Brass or Plastic

·         Connection: Male thread

·         With pulse output

·         With built-in/external non-return valve

·         With 2 built-in strainers(on Inlet and the inside meter )

l   Installation: Horizontal

Ø   CIU

l   Communication: Lora/RF

l   The CIU is with a 0-9 number keypad, enter keypad and backspace keypad

l   The CIU is with a LCD display, with back light

l   Display language: English

l   Power supply: AA battery and USB port

l   Firmware upgrading supported

l   Service life: 20,000 times reading and writing

l   CIU functions:

²   Recharge

²   Wake up the meter

²   Configuration

²   Query water consumption

²   Query total recharge

²   Query balance

²   Query Consumed overdraft

²   Query Maximum overdraft

²   Query warning low credit value

²   Query last 5 credit transfer

²   Query tariff

²   Switch prepaid to postpaid

²   Configure the CIU to match with another meter

²   Communication range 500m