Product Features
With self-maintenance function, it can guarantee that only one pulse signal can be sent out for every 360 degree rotation of special magnetic needle.The remote water meter has the function of self- resolution of magnetic interference, which can effectively overcome the weakness of critical point such as water hammer phenomenon and prevent external magnetic interference.
High precision: the measuring precision conforms to ISO4046 standard, and the transmitting signal has no error.
It is suitable for all national standard water meters to meet the technical requirements of different meter reading systems. The output pulse width of remote water meters is greater than 80ms.
Strong anti-interference ability: stainless steel shell, equipped with stainless steel hose protection, to prevent human injury.The self resolving function of magnetic interference makes the long distance water meter work normally under the condition of artificial strong magnetic interference, and the life of magnetic needle can reach more than 6 years.
Technical parameters
Diameter | DN15 | DN20 | DN25 | Range rae | 80(Q3/Q1) | Operating pressure | ≤1.6Mpa |
Q1 | 0.031 | 0.05 | 0.079 | Accuracy grade | B | Pressure loss | ≤0.1Mpa |
Q2 | 0.05 | 0.08 | 0.0126 | Protect grade | IP65 | Working temperature | 0~30℃ |
Q3 | 2.5 | 4 | 6.3 | Power supply | 3.0V | Screen display | LCD Range ratio8 |
Q4 | 3.1 | 5 | 7.9 | Maximum permissible errors | Q3±2%, Q2±2%,Q1±5% |
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 godays | Indicator lamp | Communication lamp/rigger lamp | Current and voltage | Collect current and voltage values |
Battery voltage alarm | Alarm when the power is less than 10% | Screen display | LCD | Uart | Four wire |
Extemal storage | 256K | AI SET | Pin type 4 needles | Environment temperature | -40 TO 85 |
Support agreement | Big-end mode HEX | Communication | 20MA | Display | digital |
Communication mode | LORAWAN | NB-IOT | Current | WIFI | RS485 | M-BUS |
Extermnal Transport | lorawan | Wireless communication | Wireless communication/GPRS/TCP/UDP | Wireless communication/WIFI/TCP/UDP | R5485-wire | Wireless communication/M-BUS TCP/UDP |
Antenna | Soft antenna | Soft antenna | Spring antenna | Spring antenna | / | Spring anternna |
Support agreement | Big end mode HEX | Big end mode HEX | Big end mode HEX | Big end mode HEX | Modbus RTU | Big end mode HEX |
Communication | Low frequency High frequency | NB-IOT | GPRS | 2.4G | RS485 | M-BUS |
Pulse singna | / | / | 3-wire GNDS1 S2 | 3-wire GNDS1 S2 | 3-wire GNDS1 S2 | 3-wire GNDS1 S2 |
Screen display | LCDbutton switching scree | LCDbutton switching scree | LCDbutton switching scree | LCDbutton switching scree | LCDbutton switching scree | LCDbutton switching scree |
Communication distance | 2-3KM | 2-3KM | 2-3KM | ＜10m | / | / |
Wire length lineorder | / | / | / | / | Wire length:m Line order:4-wire Positive/negative A/B | / |
Power supply | Main power + Standby power | Main power + Standby power | Main power + Standby power | Main power + Standby power | 485 power + Standby power | Main power + Standby power |
Advantage | High cost effective/extemal magnet activation/multifunction/standard interface |
Low power consumption 12-20UA(sleep current)/High cost effective/ultra-small shape/high reliability(40 to 85℃ test temp.)/rich peripherals |
