Hunan Stron Smart Co., Ltd
Stron Metering, Smart Life
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STS Multi-jet IP68 Split Keypad Prepaid Water Meter RF-LoRa CIU
Product Introduction
The STW36-B is RF-LoRa module inside and split type prepaid water meter with STS standard.Its battery is low power consumption and can up to 8 years life,LCD has real time o-clock of local place.With ingress protection IP68 waterproof can make water meter perfectly work even under water automatic valve controlling is with microcomputer technology,when monitoring tamper action or no credits,valve will be closed then.If people need to reopen it,they must go to utility and get TOKENS to solve this problem.
Step price can be set by utility on request.The integrated keypad of water meter and CIU are used to input top-up TOKEN and check information by short codes.The CIU can be installed inside customer’s house when the meter is out of his reach in locked boxes or houses.Their basic function is meter recharge by inputting 20 digits TOKEN;Alarm value setting by inputting corresponding TOKEN;Non-return valve inside for preventing back-flow.
Certificates
ISO 9001/ISO 14001//STS
Metrological Parameters of different size
| Size | DN15 1/2” | DN20 3/4” | DN25 1” |
| Overload flow rate Q4 | 3.13 | 5 | 7.87 |
| Permanent flow rate Q3 | 2.5 | 4 | 6.3 |
| Transitional flow rate Q2 | 0.04 | 0.064 | 0.1 |
| Minimum flow rate Q1 | 0.025 | 0.04 | 0.063 |
| Ratio ”R” Q3/Q1 | 100 | 100 | 100 |
Features
|
✽ Maximum working pressure: 16 Bar ✽ Maximum pressure loss: 0.6 Bar ✽ Maximum reading: 99999 ✽ Working temperature: <50℃ ✽ Error: Q1≤Q≤Q2 5%; Q2≤Q＜Q4 2% |
Meter Dimension
| Size | DN15 1/2” | DN20 3/4” | DN25 1” |
| Length(L) | 165/190 | 190 | 225/260 |
| Width(W) | 99 | 99 | 103 |
| Height(H) | 104 | 106 | 114 |
| Connecting Thread | G3/4B | G1B | G1-1/4B |
Functions
|
1.Handy remote keypad, as customer interface unit(CIU) 2.Muti-jet dry dial register construction 3.Ratio “R” Q3/Q1=R100 4.Perfectly IP68 waterproof 5.Prepaid and post-paid switch 6.Buzzer will give low credit warning 7.Automatic meter reading and valve controlling 8.Over 5 years’data storage in absence of power 9.CIU recharging and reading through RF-LoRa 10.Non-return valve preventing back-flow 11.Stepped tariffs available |
Application
Residential and commercial
Input purchase TOKEN into meter with CIU (Customer Interface Unit)
1.Input 20 digits TOKEN into the CIU. CIU and water meter remain in the effective range of communication.
2.Confirm the number on the LCD.
3.If token input is not correct, please use the keypad "back button" to delete.
4.After input 20 digits TOKEN, please click "Enter button", so that the token is confirmed
5.If token input is correct, the LCD will display "accept" and buying water succeeds.
6.If token input is not correct, the LCD will display "reject".