Ultrasonic Water Meter RS485 for Industry and Agriculture

 

 

It is a metering instrument to continuously measure, record and display volume of water flowing through sensor by use of ultrasonic time difference method. Please read this manual carefully before use, so as to use it to best advantage and avoid unnecessary loss.

 

▲Unaffected by impurities, chemicals, and magnetic materials in the medium;

▲Low starting rate (33L/h), able to accurately measure the flow rate;

▲High measurement frequency;

▲Flow rate can be as low as 100L/h;

▲Dynamic range (Q3/Q1) up to 250:1;

▲Installed in any installation position;

▲Bidirectional metering;

▲Display of error and alarm codes;

▲Optional battery supply;

▲Material ductile cast iron;

▲No moving parts, high accuracy, and years of service life. The flow sensor has no moving parts, avoiding instrumentation failures of mechanical parts that can lead to inaccurate measurements due to long-term wear. The design is also resistant to impurities, making it inspection and maintenance-free;

▲ Low-pressure drop;

▲ IP68 protection class can adapt to a variety of harsh installation environments;

▲Support RS485 communication, pulse output, GPRS, NB-IOT, LoraWan, and other data transmission methods.

 

 

 

Nominal Diameter (mm)		Length L	Width W	Hight H	Flange Connection
					Flange Diameter	Bolt Circle Diameter	Bolt Size-M
DN50	2 Inch	200	170	215	170	125	4-M16
DN65	2.5 Inch	200	185	220	185	145	4-M16
DN80	3 Inch	225	200	235	200	160	8-M16
DN100	4 Inch	250	220	255	220	180	8-M16
DN125	5 Inch	250	250	285	250	210	8-M16
DN150	6 Inch	300	285	335	285	240	8-M20
DN200	8 Inch	350	340	405	340	295	12-M20
DN250	10 Inch	450	405	470	405	355	12-M24
DN300	12 Inch	500	460	525	460	410	12-M24

 

 

Ultrasonic water meter is a new type of water meter that can detect the time difference caused by the change of speed when the ultrasonic beam propagates in the water upstream and downstream, analyze and deal with the flow rate of water, and then calculate the flow rate of water further.

 

 

Nominal diameter(mm)	50	65	80	100	125	150	200	250	300
Max flow Q4(m³/h)	31.25	50	78.75	125	200	312.5	500	787.5	1250
Nominal flow Q3(m³/h)	25	40	63	100	160	250	400	630	1000
Transitional flow Q2(m³/h)	0.16	0.256	0.4	0.64	1.024	1.6	2.56	4.03	6.4
Min flowQ1(m³/h)	0.1	0.16	0.252	0.4	0.64	1	1.6	2.52	4
Start-up flow(m³/h)	0.033	0.06	0.09	0.14	0.21	0.31	0.56	0.88	1.2
Max flow	9999999.9
Reverse flow	9999999.9
Measuring range	Q3/Q1, R250(R400 customizable)
Accuracy class	Class B
Pressure loss class	≤0.063 MPa
Working pressure	1.6 MPa
Temperature class	T30
Temperature range	(5~55)℃
Environment class	Indoor,Class B
Electromagnetic class	E1(Residential, Commercial, Industrial)
Power supply	Built-in lithium battery DC 3.6V
Battery life	＞ 10years
Installation position	Any angle
Display	LCD, 8 digits + additional characters
Flow profile sensitivity class	U10/D5
Communication interface	RS485 modbus/ Pulse output/GPRS/NB-IOT/Lorawan
Protection class	IP68
Tolerable storage temperature	-20~60℃
Static power	10μA
Operating power consumption	45μA

 

 

★ Flush pipes before installation to avoid gravels and other foreign objects;

★ Install a valve and filter before the water meter;

★ Do not touch the electrical part or pull wires to avoid damage during installation;

★ Reserve an adequate space for maintenance during installation;

★ When the water meter is installed in a horizontal or inclined way, the ultrasonic flow probe on pipes shall be placed

    horizontally, and when installed in a vertical way, make sure the water flows from down to up.

★ Please note that the arrow direction on the pipe shall be consistent with the water flow direction during installation;

★ The joint washer shall be installed correctly to avoid misaligned washer blocking water and affecting accuracy of the water meter;

★ The water meter shall not be installed at the place that may be affected by strong mechanical vibrations;

    Special Notices: 1. Be sure to install an on-off valve and filter before the water meter and another on-off valve is recommended  after it for maintenance;

★ If the ultrasonic water meter is installed through flange, make sure the parallelism between water meter flange and pipe flange is not more than 0.5% of flange outer diameter and is less than 2mm, otherwise it may result in damage to the water meter.

Installation Figure:

★ Before using this water meter, the pipe must be filled with water, otherwise it will lead to inaccurate or even non-measurement.

★ When installing the water meter, should be reserved length of DN*10 in front of the water meter. Or should be reserved the length of      DN*5 behind the water meter.

★ The water meter shall refresh the display at every 4s, and read the water meter (including the starting value and end

    value) 4s at least after the valve is closed when test the water meter, otherwise the testing results may be affected;

★ Please make sure the medium flow is within the flow range of the water meter during test and use, otherwise it may result

   in damage to the water meter;

★ In case of any malfunction (e.g. metering failed, etc.) during use, please contact the related management department

   immediately and do not repair it by yourself;

★ The product is designed with a disposable anti-disassembly seal which shall be removed only by appointed personnel, or

otherwise it shall be excluded from the free after-sales service.

 

 

 

P1: In the last interface of P1, keep covering the sensing area for more than 3S to enter P2 and repeat this operation to enter P3 ,P4

P2：Cumulative flow of historical month

P3：For internal debugging and testing, it does not have any meaning

P4:  Test status

Mode	No.	Display description
P1	1	Cumulative flow
	2	Temperature
	3	Size
	4	Flow rate
	5	Negative cumulative flow
	6	Net cumulative flow
	7	Working time
	8	Sensor status
	9	Power voltage
P2	cumulative flow of historical month
P3	For internal debugging and testing,it dose not have any meaning
P4	1	Cumulative flow
	2	Coefficient
	3	Flow rate
	4	Working time

 

Note:The display interface of the meter is subject to change for customization or upgrading

 

 

The ultrasonic water meter will have one of the many options output pre-selected when placing the order. This section will describe each output:

• Modbus/RS485 output

• Pulse output

• Wireless output

 

Modbus/RS485 output：

 

Pulse Output (Battery Powered)

• Pulse output parameters:

• Open-drain output

• Voltage 3V～24V

• Low level single pulse

• Pulse duration: 5ms

 

GPRS/NB-IOT wireless transmission

 

Data name	Parameter
Static power	15uA
Power consumption	60mA@RX
Control box	Plastic
Online method	Touch or automatically go online
Reporting interval	How often to send data: once every three days or once a day (The higher the sending frequency, the shorter the battery life)
Sending bit	0.1m³
Power supply	3.6VDC
Battery capacity	8.5Ah
Uplink interface	GPRS/NB-IOT
Downlink interface	RS485

 

 

 

Data name	Parameter
Static power	15uA
Power consumption	60mA@RX
Control box	Plastic
Online method	Touch or automatically go online
Reporting interval	How often to send data: 1～144 h can be set(Default once a day) Can be connected to pressure collection device
Sending bit	0.1m³
Power supply	3.6VDC
Battery capacity	18Ah/36Ah
Uplink interface	GPRS/NB-IOT
Downlink interface	RS485

 

 

 

 

 

 

 

 

 

 

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