Hebei Shanghong Meters Technology Co., Ltd. is one of the leading manufacturers and suppliers of sts prepaid water meter dn15 residential use smart water meter in China. If you're going to wholesale high quality sts prepaid water meter dn15 residential use smart water meter, welcome to get pricelist and quotation from our factory.
Product Description
The meter supports the STS prepaid protocol. Tokens can be issued to the STS meter through the CIU, infrared unit, or meter keyboard to realize prepaid recharge, switch valve, and other functions. At the same time, the concentrator supports LORA wireless automatic communication between the meters during meter readings. Networking function, the network level can reach up to level 3, which greatly improves the receiving sensitivity.
The water meter has the characteristics of accurate billing, convenient use, and efficient management.
Product parameter
- Q3: 2.5m³
- Turndown ratio: R100
- Accuracy level: Class2
- Temperature grade: T50
- Pressure level: PN16
- Pressure loss level: Δp63
- Protection level: IP68
- Electromagnetic environment level: E1
- Installation environment level: O
- Installation direction: H
- Battery life: ≥6 years (26500 batteries)
overall dimension
meter electrical parameter
- Working frequency: 868MHz frequency band, can float up and down ±10MHz.
- Modulation method: LoRa linear frequency modulation.
- Power consumption: static average current <30uA, maximum power consumption during meter reading <2mA (use ER26500 lithium sub-ion battery to read the meter once a day and have a service life of not less than 6 years).
- Power supply voltage: 3.0V~3.6V.
- LoRa communication distance: no less than 1000 meters transmission distance (in open areas), and communication distance in residential areas no less than 300 meters.
- Operating temperature of electrical parts: -40℃~85℃.
- Working humidity of electrical parts: 10% ~ 90%.
- Valve switch timeout waiting: 20 seconds.
- Valve blocking current: ≥260mA.
- The maximum instantaneous drive current of the valve: >800mA.
- Pulse sampling period: 0.25 seconds.
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