IC Card Smart Prepaid Water Meter
Daweda DDW-MI01 IC card smart prepaid Water Meter works in both prepaid and postpaid mode, providing stable and reliable measurement function. Communication modules can beRS485, RF,GPRS NB-IoT or other wired/wireless modules. Widely used in suitable on-site environments such as residential areas, apartments, school dormitories, government agencies, public buildings, etc.
Description
Main Parameters
Qm=Minimum flow，Qt=Transitional flow，Qp=Permanent flow，Qs=Overload flow，R=Qp/Qm
| DN(mm) | R | Qs | Qp | Qt | Qm | Starting flow | Mini reading | Max.reading |
| m³/h | L/h | m³ | ||||||
| 15 | 80 | 3.12 | 2.5 | 50 | 31.2 | 6 | 0.0001 | 9999 |
| 160 | 25 | 15.6 | 5 | |||||
| 20 | 80 | 5 | 4 | 80 | 50 | 10 | 0.0001 | 9999 |
| 160 | 40 | 25 | 6 | |||||
| 25 | 80 | 7.85 | 6.3 | 126 | 78.75 | 12 | 0.0001 | 9999 |
| 160 | 63 | 39.37 | 8 | |||||
| 32 | 80 | 12.5 | 10 | 200 | 125 | 14 | 0.0001 | 9999 |
| 160 | 100 | 62.5 | 10 | |||||
| 40 | 80 | 20 | 16 | 320 | 200 | 40 | 0.0001 | 9999 |
| 160 | 200 | 160 | 35 | |||||
Key Features
- Main Features
- 1. Prepayment function, automatic valve closes when the credit is low
- 2. Support Local & remote recharge
- 3. Prepaid/Postpaid switchable
- 4. Anti-magnetic field attack function, the valve automatically closed after being attacked
- Support Step Water Tariff (Max. 10 steps)
- 5. 10 years' Hourly/Monthly Consumption Data Record
- 6. Reminder to end-user when battery is low, remaining water insufficient, etc.
- 7. 2 Levels of Low Battery Warning, Data auto-save & Valve Close when battery is low
- 8. Meter Data Query in meter by Customer Card
- 9. Alarm function: low water level alarm, battery under-voltage alarm, etc.
