Details

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Material: Optional with ductile iron, cast copper, stainless steel, nylon, etc.

Accuracy:
Maximum allowable error @ Q1~Q2: ±5%.
Maximum allowable error @ Q3-Q4: water temperature 0.1~30℃, max permissible error: ± 2%; water temperature >30℃, max permissible error ± 3%.

Measurement type: Pulse measurement method, the accuracy can reach 1L.

Battery capacity: ≥7 years.

Communication type: LoRa, LoRaWAN, NB-IoT, 4G.

Description

Wet-type pulse remote transmission water meter (hereinafter referred to as WPR water meter) is Hanwei’s self-developed remote meter for the actual needs of daily water consumption, which is convenient for remote meter reading and control. It adopts wireless communication to realize remote reading of the water meter, effectively avoiding the door-to-door meter reading by the Water company/Bureau. This product also has a valve control function ( optional ), which is convenient for the water company/bureau to control the water consumption of the pulse -type remote water meter, making remote meter reading and control more convenient and reliable, while saving manpower, material and financial resources. Effectively increased productivity.

Features

Pulse measurement method, the accuracy can reach 1L.

Various pulse metering modules can be : Hall sampling, reed switch sampling, magnetic-resistance sampling, non-magnetic sampling, etc.

Optional Material: ductile iron, cast copper, stainless steel, nylon, etc.

Battery-powered, low power consumption design，battery be used for more than 7 years.

Various communication type available: LoRa, LoRaWAN, NB-IoT, 4G.

External antenna/internal antenna optional.

Application

Residential & Commercial buildings

Old community renovations

Schools, urban and rural water supply

Urban road greening water

Farmland irrigation etc.

Specifications

Mechanical part
Parameter	unit	Value
Nominal diameter (DN)	mm	15	20
Minimum flow (Q 1 )	m3/h	0.025	0.04
Boundary Flow (Q 2 )	m3/h	0.04	0.06
Common flow (Q 3 )	m3/h	2.5	4
Overload flow (Q 4 )	m3/h	3.125	5
Q 3 /Q 1 (R)	100
pressure loss	0.063MPa
Pressure Level	MAP10, normal ≤ 1.0MPa, short time ≤ 1.6MPa
water temperature	Temperature: 0.1～+45℃ ( cold water )
Electrical part
Working Power	26500+1520 combined lithium battery
Working Current	Static current: < 15u A , wireless transmission working current: < 200 mA
Ambient Temperature	Temperature: -20 ℃～+45℃ , Humidity: 0～ 100 %RH
Degree Of Protection	IP68
Valve Function	optional
Way Of Communication	LoRa, LoRaWAN, NB-IoT, 4G.
Receiver Sensitivity	-136dBm
Communication Protocal	" 188 Communication Protocol" or MODBUS protocol , and the protocol can be customized
Protection Mechanism	Short circuit protection , overvoltage protection, overcurrent protection