DN15MM IC Card Prepaid Digital Valve Control Water Meter System
Product Description
PREPAID SYSTEM INTRODUCTION
Overviews
The IC Card series water meter is a kind of prepaid and smart water meter. It’s designed and manufactured by our company and famous design companies both domestic and aboard according to the international standard.
Advantage of the system
·OEM, language display and currency unit display can be customized, and company name can be added to the software.
·The data will be saved automatically after exiting the system.
·Simple management and user card making, easy to query consumption records.
·Invoice printing, providing payment voucher to users in the most common form in the local area.
Brief introduction
The prepaid water meter have mechanical and electronic readings. It is used to control users overspend by prepaying with an IC card. Pay in advance and then use water get rid of the inconvenience of on-site meter reading and charging.
Product features
·Our ic card prepaid water meter has high accuracy
·Type:screw,joint,split
· Material: Brass
·Scenes to be used: garden, housing,commercial, general household, residential building,apartment,municipality, household, potable
·Waterproof level:IP68
·Technical data conform to international standard ISO 4064.
·Accuracy:class b
Fitting:Connctor,PCB,Valve control,Reading device,Adapter,Actuator,Battery operated,Pipe fitting,Connector fitting,Coupling,Pointer,Components,Counter,Rgister
·Communication:IC card reading,Private protocol
Main technical data
(Ⅰ) Technical specifications
| Item | Unit | Details | ||
| Nominal diameter | mm | 15 | 20 | 25 |
| Q3/Q1 | R80/R100 | |||
| Overload flow(Q4) | m⊃3;/h | 3.125 | 5 | 7.875 |
| Nominal flow(Q3) | m⊃3;/h | 2.5 | 4 | 6.3 |
| Transitional flow(Q2) | m⊃3;/h | 0.05 | 0.08 | 0.13 |
| Minimum flow(Q1) | m⊃3;/h | 0.031 | 0.05 | 0.08 |
| Accuracy class | Class 2 | |||
| Maximum indication | m⊃3; | 99999 | ||
| Temperature class | T30,T90 | |||
| Pressure class | MAP 10/MAP16 | |||
| Pressure loss class | ΔP63 | |||
| Flow prefile sensitivity class | U10/D5 | |||
| environmental class | Class B | |||
| Electromagnetic environment class | E1 | |||
| Static current | uA | <10 | ||
(Ⅱ) Relative error
·Maximum permissible error between Q1 and Q2(excluded) is ±5% in flow low area.
·When the water temperature is not higher than 30℃, maximum permissible error between Q2 and Q4(included) is ±2% in flow high area.
·When the water temperature is higher than 30℃, maximum permissible error between Q2 and Q4(included) is ±3% in flow high area.
(Ⅲ) Working temperature: cold water (0.1~30)℃
(IV) Operating ambient temperature: (5~55)℃
(V) Storage environmental temperature: (-5~55)℃
Fault handling instructions
| Item | Fault display | Fault explanation | Elimination methods |
| 1 | Under voltage | Low battery | Contact the manufacturer |
| 2 | Flow | Flow sensor signal failure | |
| 3 | Valve open/close | Valve sticking rusting or scaling | |
| 4 | Can not read card | Write card erroror take the wrong card | Go to water supply department to test the card |
Outline dimensional drawing
| Nominal Diameter | Length L | Length L1 | Width B | Height H1 | Height H2 | Connecting Thread | |
| mm | d | D | |||||
| 15 | 258 | 165 | 90 | 112 | 184 | R1/2 | G3/4B |
| 20 | 299 | 195 | 90 | 112 | 184 | R3/4 | G1B |
| 25 | 345 | 225 | 90 | 114 | 186 | R1 | G11/4B |
REMOTE WATER METER COMPARISON CHART
| PREPAID | LORA | GPRS | NB-IOT | |
| Composition | Prepaid water meter IC card Card Reader Software | Lora water meter Concentrator Repeater Serve Platform | GPRS water meter Serve Platform | NB-IOT water meter NB-IOT transmission base station Serve Platform |
| Communication Band | None | 470-510Mhz 865-868Mhz | GSM850/EGSM900 | CDMA1X800E/EGSM900 |
| Advantage | Transmit information through IC card,charge accurately Install and operate easily | LANtransmission data,low power,Suitable for intensive installation real-time reading control | Wide area network,data transmission without distance limitation,simple installation and debugging,low sample order cost. | Wide coverage,low power consumption,low cost and slower rate. |
| Limitations | The stand-alone version of the software can only be read and controlled on a designated computer.Back up user data when replacing a pc. | Greater impacts by obstacles and limited communication distance(up to 1 km).On-site debugging is a heavy workload | Occasionally there will be data packet loss,high transmission rate,relatively high power consumption. | At present,NB technology is not fully mature and the coverage of base stations is low. |
| Battery capacity | more than 6 years | more than 6 years | more than 6 years | more than 6 years |
| Software payment | Free | Free | Free | Free |
| Cost | Almost no use cost | Electricity and flow charges for concentrators | Mobile data traffic charge of 2g data traffic in water meter | Mobile data traffic charge of 2g data traffic in water meter |
| necessary part of sample purchase | Prepaid water meter IC card Card Reader | Lora water meter Concentrator | GPRS water meter | NB-IOT water meter |
| Software | Stand-alone application | B/S Cloudy serve platform | B/S Cloudy serve platform | B/S Cloudy serve platform |
| Software compatible | YES | YES | YES | YES |