Shengda Digital Residential Ultrasonic Smart Water Meter
An ultrasonic water meter is an intelligent flow meter, which can accurately measure the flow. The product has the characteristics of beautiful appearance, convenient installation, accurate measurement, stable operation, strong anti-pollution and anti-corrosion ability, long service life, small pressure loss, economical and practical, etc. It is suitable for domestic water and central air conditioning system water flow metering and charging.
Work Principle:
Ultrasonic water meter is an all electronic water meter made of industrial electronic components based on ultrasonic time difference principle. Compared with mechanical water meter, it has the characteristics of high precision, good reliability, wide range ratio, long service life, no moving parts, no need to set parameters, and installation at any angle.Technical parameters:
Caliber | DN15 | DN20 | .. |
Minimum Flow (Q1) | 0.01 | 0.016 | .. |
Common Flow (Q2) | 2.5 | 4.0 | .. |
Maximum Flow (Q3) | 3.125 | 5 | .. |
Range ratio | 250 | ||
Accuracy grade | Class B | ||
Working pressure | ≤ 1. 6MPa | ||
Pressure loss | P40 | ||
Level of protection | IP65 | ||
Working water temperature | 5 ~ 55 ℃ | ||
Communication mode | Lorawan/NB/GPRS/RS485 | ||
Power supply | 3.6 V | ||
Key | Magnetic induction button | ||
Screen | LCD8 bits | ||
Display Range | 0 m ³ ~ +99999.999 m ³ | ||
Communication motherboard parameters:
Measurement method | Ultrasonic dual channel | Abnormal remind | Abnormal failure report, voltage and current alarm | Periodic reporting | Periodic reporting data |
Historical data storage | Store hourly /daily /monthly for 90days | Indicator lamp | Communication lamp/trigger lamp | Battery voltage alarm | Alarm when the power is less than 10% |
Call the police | Buzzer | Screen display | LCD | Uart | 4 -wire |
External storage | 256K | AI SET | Pin type 4 needles | Environment temperature | -40~85℃ |
Support agreement | Big-end mode HEX | Communication current | 20MA | Monitor | Digital display |
Water meter types:
Work principle:
