Features:
• Protection level: Submersible IP68
• Ultralow starting flow: down to 1L/h
• Prepaid and postpaid flexibly convert
• Very wide Measurement range of R500
• Leakage detection and dry pipe detection
• Installation in any position, no air measuring
• Remote water connection/disconnection
•Battery powered with lifetime of more than 10 years
• Bi-directional flow measurement to prevent water tamper
• No wearing parts, excellent long-term stability and reliability
• With stainless steel ball valve, automatically rotates regularly to prevent scaling
• Empty pipe structure, indifferent to sand and particles in the flow
• Actively defend against magnetic attacks by automatically closing the valve and displaying alarm


 

Communication Interface:

RF	Low power consumption RF communication mode
M-bus	EN13757 protocol, bus communication
NB-IoT	With narrow band of 180kHz, it can be directly deployed in GSM, UMTS or LTE network to enable smooth upgrade in future
LTE Cat.1	Seamless access to the existing LTE network, no need to upgrade the hardware and software for the base station, low network coverage costs.

Technical Specification:

Available Size	DN15, DN20, DN25
Standard	ISO4064/EN14154
Q3/Q1=R	R500/R400
Precision Class	Class 2
Pressure Loss	25kPa
Maximum Working Pressure	1.6MPa
Working Environment	Temperature: -25~+55℃, Humidity ≤100%(RH)
Liquid Temperature Class	T30/T50
Resolution of Volume	0.0001~ 99999.9999m³
Flow Profile Sensitivity Class	U0D0
Climate and Mechanical Environment Safety Level	O
Electromagnetic Environment Class	E1
Power Supply	3.6V Lithium batteries, up to 10 years
Protection Class	IP68
Materials	PPO
Data Storage	For errors, alarms and measuring values, data logging capabilities to record up to 14*24 hourly, 366*daily,72* monthly value

Flow Rate Performance Parameter:

Meter Size		Dynamic	Overload Flow Rate	Permanent Flow Rate	Transitional Flow Rate	Minimum Flow Rate	Starting Flow Rate
DN (mm)	inch	R	Q4(m³/h)	Q3(m³/h)	Q2(L/h)	Q1(L/h)	Q0(L/h)
15	1/2	400	3.125	2.5	10	6.25	1
		500			8	5
20	3/4	400	5	4	16	10	2
		500			12.8	8
25	1	400	7.875	6.3	25.2	15.75	3
		500			20.16	12.6

Installation Dimension:

Nominal Diameter (mm)	L (mm)	W (mm)	H (mm)	Weight (g)
DN15	165	80	107	900
DN20	195	80	109	1000
DN25	225 or 260	80	112	1100