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Production Descriptions: DN 15 TM CARD COLD WATER METER, electrical meter and mechanical meter are separate, connected by one cable, which is one kind appliance for pre-payment of water rate.

   Appliance Features:

Adopting micro-electronics and micro- processing technology,
 Prepaid, no paying, No water;
One TM card imported from USA, one water meter,
  Lithium battery : Low-power consumption, stable performance in
long-term field service.
  Suitable for the water temperature at 0℃~ 40℃.
Electrical meter is connected with mechanical meter by one cable which can be installed on the position in certain distance from another. Max distance up to 500 m .
 It helps user and water supplier operate this meter in much easier
way.
Main Function Features as below,

   Pre-payment Function: Pre-payment prior to using water. Valve will be off while pre-payment use up.

   LCD Display Function: displaying the balance volume, total used volume, current purchased volume, On/Off, remind of purchasing water, using new battery, and pulling out of TM card and miss-operation etc.

   Double Sequential Access technology Function: Adopting double sequential access technology and completely resolve the problem of the measuring difference between TM card electrical meter and mechanical meter.
  Patent No. ZL 2006 2 0105260.6  for it.
   Ball Valve Technology Function: Floating ball valve can avoid being fixed, controlling the lower currency, set up cleaning automatically so as to avoid full rustiness due to water scale.
 Patent No. ZL 2007 2 0107935.5 for it.

   Balance Alarm Function:  While the balance volume reaches to the limited level, the valve will shut off for one time so as to remind the user of paying attention to the pre-payment will used up soon. User can press the enquiry key to make the appliance re-work.

Max. Volume Limited Function: To each user, Water supplier can fix the top used volume in system for every month or year according to their country policy.
While purchased volume exceeds the limited level, it will be failed for purchasing.

Less Zero treatment Function: Under normal working status, the valve will shut off while the pre-payment meet to zero. If the valve happens to malfunction, the record for negative data will be made as well. It will be deducted in the next pre-payment..

   Back-check Automatically Function: Appliance can check back automatically the used volume per month of the latest 12 months.

   Data Storage Function:  All the data in the executer can be stored for over 10 years.

Reimbursing Function: Balance of pre-payment will be refund to the TM card while the appliance must be replaced because of its fixed quality period, such as 6 years.

Automatic Measuring Function: Water being supplied, water meter automatically measure the passing volume into rate

Password and Protection Function: Using the TM card imported from USA, automatically identifying the dada process of one card / one water meter.

Disturbance Inspection Function: while the strong magnetism is disturbing the measuring data, appliance will automatically record the date of unconventionality.

Malfunction Inspection Function: Appliance can inspect automatically the malfunction comprehensively so that technicians maintain it very easily.

Low Pressure Inspection Function: the valve will be shut off and alarm is supplied while the appliance has inspected the battery is under very low pressure. Meanwhile, it reminds of replacing the battery on LCD.

Water-drop Measuring Function: Appliance system can still measure accurately the water passing volume while water is dropping. The initial fluxion is better than the standard level.

Saving Electricity Function: While the water meter doesn’t work, consumption of battery reach zero. Long-life and high power battery can be used about 9 ~ 10 years.

   Cable broken inspection Function: While line broken, the covering message will be transferred to appliance executing system. The valve shut off.
Main technical data:

1. Standard: CJ/T133-2001
2. Working Voltage: DC 3.6 V ± 0.6V
3. Intensity of Pressure: 1.6Mpa, 15min
4. Pressure Losing : ≦0.1Mpa
5. Working Pressure: ≦1Mpa
6. Static Currency: ≦ 30 uA
7. Working Currency: ≦ 100Ma
8. Executor Precision: ≦ 0.1%
9. Usage Factor for TM Card Holder: > 10000 times.
10. Outside Temperature: 0℃~ 50℃