IC card prepayment water meter for water works

Function

1 Touchless type IC card, completely sealed for against water.

 

2 Dual-key encryption,one card with one code.

 

3 One card for different meter or one card for one meter.

 

4 Valve will shut down for warning when the remaning water is less than the warning line,and the valve will open when swipe the card on the induction aera. (Warning of insufficient water volume)

 

5 LCD will show low power when the remaning power is less than the warning line,and the user should change the battery duly. (Warning of power shortage)

 

6 Data-read-back routes function,Management center can collect the data from the user card which including water consumption,battery status and the report of the human disturbance etc.

 

7 Small starting flow and high precision.

 

8 LCD ,Show the volume of new purchasing,surplus and totally accumulative water. (Warning of   insufficient water volume)

Technique parameter:

1,Technique standard:

Temperature:0°C-40°C(Cold Water meter) 

0°C-90°C(Hot Water meter)  Humidity≤95%      

 Work Volt: 3.0V-3.6V  

Work Current≤3μA

LCD: 00000.0-99999.9

 Protection:IP65

2,Maximum Error

±0.15% between electronical reading and mechanical reading.

3,Flow Rate

Size(mm)	Overload Flow Rate (m3/h)	Normal Flow Rate (m3/h)	Boundary Flow Rate (m3/h)	Minimum Flow Rate (m3/h)
15	3.0	1.5	0.12	0.03
20	5.0	2.5	0.20	0.05
25	7.0	3.5	0.28	0.07