Ultrasonic Water Meter

Feature

• Ultrasonic water meter Stratified fluid piping design for two-channel measurement, measurement accuracy Range than the width, and less than 0.01m / s starting flow
• Display large amount of information, with the screen display 9 digital display four cumulative flow and instantaneous flow figures
• Design of energy-saving, power-saving features such as automatic meter will empty tube or long-term fluid standstill
• Full IP68 protection class design, the components completely sealed to protect, even if the water can be long-term work
• Design at the time, there were a total of records and data collection functions on the month, day
• Ultrasonic flow meter With multiple communication interface mode; TTL level pulse output and USART interface for easy connection to other low power devices; standard RS485 interface; infrared communication interface; support CJ-188 communication protocol.
• Supports standard MODBUS, M-BUS, HART communication protocol, compatible communications protocol Haifeng ASCⅡ code
• Output signal and diverse: Available two isolated pulse signal output, (which pulse and pulse width equivalent programmable); may also 4-20mA two-wire output
• With online software upgrades
• With Dual PT1000 temperature measurement function, can achieve heat measurement
• Built-quantitative control can be achieved manually or set the time automatically start controller, thus achieving automatic timing quantitative or quantitative irrigation water
• Depending on customer needs to select a variety of units, including cubic US gallons, cubic feet and liters
• Built-in lithium battery, the battery life of more than 6 years

Technical Parameter

Project	Parameters
Accuracy class	2 (measurement period: 1 second)
Turndown ratio	100, initiating a flow rate of less than 0.006m / s
Measurement Range	Water, sewage, water (other liquids to be customized), and full pipeline
Measuring medium temperature	0.1-30 ℃
Work environment	Temperature: -10 ~ 45 ℃; humidity ≤100% (RH)
Pressure Rating	1.6MPa / 2.5MPa optional
Upstream of the flow field sensitivity level	U3
Downstream flow field sensitivity level	D0
Climatic and mechanical environmental safety rating	Grade C
Electromagnetic Compatibility Level	E2 level
Communication Interface	RS485 / USART / IR / USART serial communication bus, etc. Optional
The output signal	4-20mA analog two-wire output (two-way isolation OCT or TTL optional, pulse width programmable)
Communication protocol	Haifeng fully compatible protocol (individual very distinct command) also supports the standard MODBUS, M-BUS, CJ-188 communication protocol
Heat measurement	Access Dual PT1000 achieve heat measurement
Power supply	Built-in lithium battery (3.6V) / External DC5 ~ 40V
Protection class	IP68
Local Display	Two-line display includes nine cumulative amount, four instantaneous flow, as well as prompt and unit status
Data Storage	Using EEPROM / FLASH to store data, cumulative flow automatically record 128 months ago, the first 512 days
Flow measurement cycle	Measuring status: 1 times / sec (also can be set to 2 to 4 times / sec); verification status: 4 times / sec
Power and Power	Built-in 3.6V lithium battery can be used continuously for more than six years, external DC8-36V

 

Flow Range

Nominal diameter (Mm)	Turndown ratio R	Flow rate (m3/ h)
		Starting flow	Minimum flow Q1	Transitional flow Q2	Common flow Q3	Overload flow Q4
DN15	200	0.003	0.0125	0.020	2.500	3.125
DN20	200	0.0035	0.016	0.030	3.200	4.000
DN25	200	0.007	0.020	0.030	4.000	5.000
DN32	200	0.010	0.032	0.0504	6.300	7.875
DN40	200	0.015	0.100	0.160	20.000	25.000
DN50	100	0.030	0.400	0.640	40.000	50.000
DN65	100	0.059	0.630	1.008	63.000	78.750
DN80	100	0.064	1.000	1.600	100.000	125.000
DN100	100	0.094	1.600	2.560	160.000	200.000
DN125	100	0.120	2.000	3.200	200.000	250.000
DN150	100	0.270	2.500	4.000	250.000	312.500
DN200	100	0.315	4.000	6.400	400.000	500.000
DN250	100	0.508	4.000	6.400	400.000	500.000
DN300	100	0.770	6.300	10.080	630.000	787.500

 

Size and Weight  

Nominal	Dimensions					Threaded connection		Effective thread length	Weight kg	Pressure Rating MPa
	L	H1	H2	W1	W2	A pipe thread	Port Thread B
DN15	110	168	17.5	58	90	G3/4B	G3/4B	10	2.2	2.5
DN20	130	173	24	58	90	G1B	G1B	12.5	2.3	2.5
DN25	160	175	25	58	90	G11/4B	G11/4B	13	2.5	2.5
DN32	180	177	31	58	90	G11/2G	G11/2G	14.5	2.8	2.5
DN40	200	181	31	58	90	G2B	G2B	188	3.3	2.5