Mainone High-Precision Brass Smart Water Meter LCD Display RS485 Ultrasonic Water Meter 25mm IP68 Thread Loora Water Meter

• Customization: Available
• After-sales Service: Online Support
• Warranty: 1 Year
• Model NO.: SR002
• Install: Vertical
• Medium Temperature: Hot Water
• Counter Instructions: Digital and Analogue
• Nominal Diameter: 15-25
• Application: Civil
• Principle: Speed of Water Meter
• Medium Pressure: High-pressure Water Meter
• Work Environment: Dry Dial,Wet Liquid Seal
• Stucture: Wireless Communicating
• Waterproof Level: IP68
• Temperature Class: T30 / T50 / T90
• Power Supply: DC 3.6V
• Meter Reading Times: Once a Day
• Transport Package: Export Packing
• Specification: 50*26.5*34.5
• Origin: Henan
• Production Capacity: 1000PCS/Month

Product Description

Product Description

GPRS/NB-IOT/4G Water Meter
Product introduction
The LXS-15~50 series small-diameter GPRS/NB-IOT/4G wireless remote water meter is a smart meter developed to facilitate wireless remote meter reading based on the actual needs of intelligent management of water supply companies. It adopts a split design, and the electronic unit is installed in an independent fully sealed cavity. The waterproof performance reaches IP68 level. It does not change the structure of the traditional wet or dry water meter, and does not affect the measurement accuracy and sensitivity. It communicates with the GPRS/NB-IOT/4G module through the GPRS/NB-IOT/4G module. The main station communication uploads data to the main station, realizing the functions of fully automatic remote reading of water meter data and data sharing with the settlement center.
This type of water meter adopts a rotor dry or wet metering structure and has the characteristics of high metering accuracy, small initial flow rate, convenient meter reading, beautiful appearance, safety and hygiene, strong anti-interference ability, and long transmission distance. It can be equipped with valve control function and has the advantages of prepaid water meter.
Technical Parameters
1. Electronic performance parameters

Items	Parameters	Marks
Operating Voltage	DC3.6V	Lithium battery powered
Operating temperature	-20-100ºC	Operating temperature of electronic modules
Working humidity	10%-90% Relative humidity, no condensation
Working frequency	GPRS:GSM850MHz EGSM900MHz DCS1800MHz PCS1900MHz 4G:LTE-FDD Band 1/Band 3/Band 5/Band 8 ▪ LTE-TDD Band 34/Band 38/Band 39/Band 40/Band 41 NB-IOT:Band5/Band8
Upload time	You can set the upload interval in hours from 1 to 255 hours.	The default interval is 24 hours, that is, uploading once a day
Battery life	≥6 years

2. Flow technical parameters

Items	Parameter
Nominal caliber	DN15	DN20	DN25
Range Ratio	R100
Q4(m³/h)	3.125	5	7.875
Q3(m³/h)	2.5	4	6.3
Q2(m³/h)	0.04	0.064	0.1008
Q1(m³/h)	0.025	0.04	0.063
Temperature Class	T30/T50/T90

Overload flow (Q4) - The water meter is required to meet the maximum allowable error requirements in a short period of time, and then maintain the maximum flow rate of the metering characteristics under rated operating conditions.;
Common flow rate (Q3) - the maximum flow rate under rated working conditions. Under this flow rate, the water meter should work normally and meet the maximum allowable error requirements;
Boundary flow (Q2) - the flow that occurs between the common flow Q3 and the minimum flow Q1, dividing the flow range into two areas: "high zone" and "low zone" with specific maximum allowable errors;
Minimum flow rate (Q1)-the minimum flow rate that requires the water meter's indication to comply with the maximum allowable error;
Indication error: Within the water temperature range of 0.1ºC to 50ºC, the maximum allowable error of the water meter is ±2% in the high area (Q2≤Q≤Q4) and (±5%) in the low area (Q1≤Q<Q2).
3. Working environment: water temperature 0.1~+45ºC, humidity 0~95%RH;
4. Max working pressure: ≤1.6 Mpa;
5. Pressure loss: The maximum pressure loss under rated working conditions does not exceed 0.063Mpa;  


Appearance and specifications


Dimensions of wireless remote water meter 
 

Caliber	L	W	H2	Thread Connection Pipe ϕ	Thread Connection Case ϕ
DN15	165	90	150	R 1/2	G 3/4 B
DN20	195	90	152	R 3/4	G 1 B
DN25	225	104	175	R 1	G1 1/4 B

Wireless remote water meter specifications and dimensions table
Magnetic field induction intensity 
Magnetoresistive switch:

Symbol	Min	Type	Max	Unit
Bop,Ta=25ºC	±17	±37	±55	Gs
Brp,Ta=25ºC	±10	±25	±40	Gs
Bhyst,Ta=25ºC	3	12	18	Gs

Reed Pipe:

Serial number	Items	Unit	Numerical value
1	Electric shock form		1C SPST-NC
2	Electric shock material		Ru
3	Electric shock load	W	5
4	Maximum switching voltage	V(DC/AC)	175/125
5	Maximum switching current	mA	DC400/AC280
6	Maximum contact resistance	MΩ	120
7	Minimum insulation resistance	Ω	10.6
8	Sensitivity value	AT	10-20
9	Contact capacitance	PF	0.8
10	Working temperature	ºC	-55~120

Anti-magnetic interference level 

Serial number	Items	Content	Operation content
1	Signal frequency	≤1KHz	The signal is valid and the water meter counts
2	Magnetic field strength	≥55Gs,Time last≥10S	Magnetic interference, water meter shuts down valve

• Installation, use and maintenance methods 

1. A wireless remote water meter of appropriate caliber should be selected based on the pipe diameter and water consumption at the installation location.
2. The installation location should avoid exposure, freezing, pollution, moisture and flooding to facilitate disassembly and meter reading. During the freezing period, in addition to wrapping the water meter and water pipes, close the inlet valve of the water meter and open the outlet valve and faucet when not in use. This can prevent the water meter from being damaged due to freezing expansion. It is recommended to install it in a special water meter box.
3. The water meter should be installed horizontally, with the letter facing up and the arrow direction in the same direction as the water flow.
4. It is necessary to wash away the gravel, sediment and other debris in the newly installed pipes before installing the water meter to avoid causing water meter failure.
5. For accurate measurement, the faucet should be higher than the water meter.
6. If the water meter is installed at the boiler water inlet pipe, prevent the backflow of hot water from scalding the water meter.
7. The water meter should not be directly connected to the pipeline. The water meter and the pipeline should be connected through pipes, sealing washers, and connecting nuts. When disassembling the water meter, do not use hard plates to avoid twisting the case.
8. The water meter should be protected from excessive stress caused by pipes and fittings. If necessary, the water meter should be installed on a base or bracket.
9. Valves should be installed before and after the water meter to facilitate maintenance and replacement.
10. Do not install the water meter in a metal water meter box to avoid signal shielding and preventing remote meter reading.

Storage and transportation environment
The GPRS/4G/NB-IOT wireless remote transmission water meter should not be subject to severe impact during transportation and unpacking. It should be transported and stored in accordance with the industry standards of "CJ/T 224-2012 Electronic Remote Transmission Water Meter". Water meters should be stored in their original packaging, in an environment with a temperature of 5°C to 50°C, a relative humidity of no more than 90%, a stacking height of no more than five layers, and no corrosive gases in the air.

Accessories 
Each water meter comes with 2 pieces of pipe joints, connecting nuts and sealing rings, 1 piece of certification, and 1 product manual per box.

Warranty and service
1. Within one year from the purchase of the GPRS/4G/NB-IOT wireless remote water meter produced and sold by our factory, if the installation is reasonable and the flow rate is normal, if the failure is caused by damage to the internal parts caused by the manufacturing quality (except for freezing damage), As long as the lead seal is complete and effective, our factory will be responsible for repairing and replacing it, and will bear the return freight.
2. If there is a problem with the product outside the warranty period, the company will be responsible for the repair and charge a cost.
3. Damage to the water meter due to improper installation and man-made damage is not covered by the "warranty".
 

 

Company Profile

 

Established in 2005, Kaifeng Xintai Valve Co., Ltd has been one of leading manufacturer of smart water meters in China. The company also provides total solutions for smart flow metering, control, telemetry and smart water meter reading system.

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