Dual Channel Ultrasonic Water Meter_Longrun_Ultrasonic Flow Meter-CHINA LONGRUN

Name：Dual Channel Ultrasonic Water Meter
Model：LRF-2000W

General Introduction:

Double beam ultrasonic sensors for high accuracy and reliable operation;IP68 protection, ensure long-term operation though water in the inside meter;Built-in Lithium battery for 6 years life expectancy.

Features:

• Initiating flow lower to millimeter grade

• Multi line 9 digital LCD dispaly accumulative flow and 4 digital for instantaneous flow

• High reliability design,no moving part

• Two channel isolated pulse output,pulse equivalent and output pulse can be arbitrary customed

• Two-wired system 4-20mA output optional

• Built-in Lithium battery for 6 years life expectancy

• It can automatic power saving under empty pipe or the liquid static for a long time

• Resin vacuum sealed IP68 for long life and high expectancy

• Chronological cumulative record

• Standard RS485 interface

• Infrared communication interface,support CJ-188 communication

• Support MODBUS,M-BUS communication protocol

• TTL levels pulse output and USART interface,convenient to connect the low power consumption equipment

• With the two channel PT1000 temperature transducer, which can realize the heat measurement

Flow range：

Norminal Diameter （mm）	Range than R	Flow（m³/h）
Norminal Diameter （mm）	Range than R	Starting Flowrate	Minimum Flowrate Q1	Transitional Flowrate Q2	Permanent Flowrate Q3	Overload Flowrate Q4
DN15	200	0.003	0.0125	0.020	2.500	3.125
DN20	200	0.0035	0.016	0.026	3.200	4.000
DN25	200	0.007	0.020	0.032	4.000	5.000
DN32	200	0.010	0.032	0.050	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

DN15-DN40

Norminal Size DN	Dimension					Thread Connection A	Thread Length	Weight kg	Pressure MPa
Norminal Size DN	L	H1	H2	W1	W2	Thread Connection A	Thread Length	Weight kg	Pressure MPa
DN15	110	98	14.5	47.5	58	G3/4B	10	0.87	1.6
DN20	130	101	17	47.5	58	G1B	12.5	0.94	1.6
DN25	160	103	21.5	47.5	58	G11/4B	13	1.24	1.6
DN32	180	107	23.5	47.5	58	G11/2B	14.5	1.36	1.6
DN40	200	109	30	47.5	58	G2B	16	1.89	1.6

DN50-DN300

Norminal Size DN	Dimension					Flange Dimension						Weight kg	Pressure MPa
	L	H1	H2	W1	W2	Flange Diameter D	Bolt Hole center D1	Bolt Hole ×Quantlty Φ×n	Sealing Surface		Flange thickness C
	L	H1	H2	W1	W2	Flange Diameter D	Bolt Hole center D1	Bolt Hole ×Quantlty Φ×n	D2	f	Flange thickness C
DN50	200	70	131	76	95	165	125	18×4	102	2	19	10.0	1.6
DN65	200	75	135	79	95	185	145	18×4	122	2	20	11.5	1.6
DN80	225	94	132	94	95	200	160	18×8	138	2	20	13.6	1.6
DN100	250	104	140	104	104	220	180	18×8	158	2	22	18.6	1.6
DN125	275	117	148	117	117	250	210	18×8	188	2	22	23.5	1.6
DN150	300	134	155	114	114	285	240	22×8	212	2	24	30.0	1.6
DN200	350	165	254	165	165	340	295	22×12	268	2	26	35.5	1.6
DN250	450	197	269	197	197	405	355	26×12	320	2	29	58.0	1.6
DN300	500	223	287	223	223	460	410	26×12	370	2	32	76.0	1.6

Transmitter:
Dual channel ultrasonic water meter
Display and Operation:

Communication and Signal Output:

Ltem	Specification
Measurement Liquid	Water,Sewage,Seawater(Other liquid need to customized),liquid should be full of the pipeline
Medium Temperature	0.1-30℃
Working Environment	Temperature：-10~45℃；Humidity≤100%（RH）
Working Pressure	1.6MPa(2.5MPa optional)
The sensitivity of upstream	U3
The sensitivity of downstream	D0
Climatic and mechanical	C class
Electromagnetic compatibility class	E2 class
Communication Interface	RS485/USART/Infrared
Output Signal	Two way OCT pulse output/TTL pulse output/One way4-20mA output
Power Supply	Built-in Lithium battery(3.6,19AhV)/DC8-36V power supply
Protection Class	IP68,can work 2 meters under water
Digital Display	Multi line 9 digital accumulative flow,4 digital display for instantaneous flow,varies of state prompt and units
Data Storage	EEPROM/FLASH,automatically record the accumulative flow of last 512 days
Measurement Cycle	Measuring:1 times/second;Verification:4 times/second
Power Consumption	＜2.7AH/Year,6 years battery life

●LRF-2000W Product Selection Manual（Click to view）