Project Description
Multi-jet Smart STS Prepaid LoRawan Water Meter
ISW1598 Multi-jet Smart STS Prepaid LoRaWAN Water Meter
I. Compliant to STS protocol
Smart STS prepaid LoRaWAN water meter pefectly combines conventional prepaid water meter and STS encryption mechanism. With the convenient and secure STS hardware&software encryption, STS prepaid water meter accepts 20 digits charging TOKEN. What’s more, as per water utility’s demand, iSmart Meters can provide API protocol to the 3rd party for customizing web payment or mobile USSD.
II. Upgradable to AMR/AMI via LoRaWAN
Except above STS vending feature, additionally it also can be integrated into automatic reading system(AMR or AMI) by LoRaWAN module. In order to realize the data reading function, utility needs to purchase data concentrator unit(DCU). Because DCU will read and store data from water meter, and then transmit data to server in water utility. Meanwhile, in case of successfully reading and storing the data, AMR/AMI system can analyse consumption and tampering for rating customer’s credit. In this way, water utility can effectively adopt respective measures to limit or cut off water supply.
III. Linkable to Customer Unit(CIU)
In addition, STS smart prepaid water meter can communicate with an extra customer Interface Unit(CIU). Generally, CIU should be installed at customer’s house. Through inputting 2 or 3 digits of short code on keypad, user can query the data from water meter easily.
Function&Feature
| Comply with Directive 2014/32/EU, OMIL R-49:2013(E)& EN14154. |
| Wet dial or dry dial register for water meter is selectable. |
| Prepaid and post-paid mode is switchable. |
| Low credit warning is programmable. |
| Charging water amount by 20-digit TOKEN from POS point or direct charging from vending system. |
| Anti-return valve to be against reverse-flow. |
| RF communication: Wireless communication operation frequency band is 433MHz, which will be adjustable as per client’s requirement. |
| CIU supports to match freely with different water meters. |
| Low battery detection: water meter will detect battery capacity when valve opens or closes. |
| Valve can be controlled by HHU or water utility’s central vending system. |
Main Parameters
| Item | Description |
|---|---|
| Standards | Directive 2014/32/EU, OMIL R-49:2013(E)& EN14154 |
| Temperature level | Cold water meter: T30(0.1℃to 30℃)
Hot water meter: T30(0.1℃to 30℃) |
| Dial type | Dry or wet type as per requirement |
| Accuracy | Class B |
| Level of EMC | E1 |
| Level of upstream flow field sensitivity | U10 |
| Level of downstream flow field sensitivity | U5 |
| Dimension | DN15: 190x99x165mm
DN20：190x99x165mm DN25：260x103x225mm |
| Connecting | DN15: G3/4B
DN20: G1B DN15: G5/4B |
| Q3/Q1 | DN15: 80, 100 or 160
DN20: 80, 100 or 160 DN25: 80, 100 or 160 |
| Life span | 10 years |
| Relative humidity | 0~95% |
| IP Index | IP68 |
