1pcs Electronic Remote Intelligent Water Meter Modbus/188 Protocol RS485 Communication Waterproof IP68

A: DN15 electronic remote water meter for indoor pipeline well
B: Waterproof DN15 electronic remote water meter
C:DN20 electronic remote water meter for indoor pipeline well
D: Waterproof DN20 electronic remote water meter for outdoor environment
E:DN25 type electronic remote water meter for indoor pipeline well
F: Waterproof type DN25 electronic remote water meter for outdoor environment

Water meter characteristics: Modbus RS485 communication; working voltage 3.6V-24V; support 188 protocol; transmission distance up to 1000 meters; good waterproof performance to IP68 waterproof grade; electronic pulse counting; digital display; communication with instantaneous flow of data packets; eliminate idle reverse, measurement accuracy is up to 0.00001m3.

1, ultra low power long life design, lifetime free maintenance circuit

Zero power magnetic tunnel sensor, thorough CPU power down technology, ultra low static working current, theoretical calculation for 30 years with built-in large capacity lithium battery,ActualensureFunction10Over the year.

No battery and any other circuit maintenance. The external power supply is automatically switched to the external power when the external power supply is supplied.External electric currentLow to0.3mA,Ensure the work of lithium battery powered remote transmission system6Over the year.

2. Nonlinear curvature compensation implementationFull range accurate measurement

The series of electronic water meter adopts the multilevel coefficient nonlinear compensation measurement curve, the common flow accuracy is guaranteed to be 0.05%, and the full range measurement accuracy is higher than the national standard. The water uses 9 bit liquid crystal display, showing the minimum scale 0.00001m3Minimum unit 0.00001m of meter reading3.

3. Waterproof grade IP68Sealed circuit, through a variety of complex environment test

This series of electronic water meter using base table and the circuit box is completely independent of separation design; the circuit box door reached IP68 grade, waterproof depth 50 meters under water pressure (0.5MPa); fully sealed waterproof protection due to water and moisture to completely eliminate the fault causing the product failure rate is very low. The separation structure makes the replacement and maintenance operation of the water meter easier and the maintenance cost is low.

4Intelligent identification of air pipe and water hammer by velocity difference probability method

It is a common phenomenon that the high sensitive water meter is affected by the air and pressure fluctuation in the pipe. SM-10 series intelligent electronic water meter accurately measure impeller flow rate. According to the probability of flow difference, it analyzes the phenomenon of water meter slip and automatically eliminates the amount of water generated by idling. The solution to this problem is the best interpretation of the intelligent and electronic advantages of water meters.

5The national standard size installation and replacement operation is simple

The series of 15mm, 20mm and 25mm standard caliber electronic water meters conform to the national standard of cold water meters. The installation method is exactly the same as that of common mechanical water meters, and it can be directly replaced. The water quantity data is displayed by LCD digital, and the water meter verification is more intuitive and simple.

6.Anti leakage and anti flip

The series of electronic water meters use the patent check valve to control water intake, which not only realizes the need of water drop and walk, but also prevents the problem of water meter upside down. 15mm meter starting flow minimum reached 2 liters per hour.

7High sensitive and wear-resistant structure, long life design

The series of electronic water meter base is designed by long life mechanism. The two poles of the impeller are made of stainless steel shaft and agate shaft sleeve. The flow test is more than 100 thousand tons, the frictional force of the gearless mechanism and the high sensitivity of the water meter. There is no mechanical wear and tear, and the measurement characteristics are maintained for a long time. The top magnet of the impeller of the water table is sealed by special sealing cavity, which avoids the failure of impeller rotation due to the adhesion of water and rust to the magnet.

8Antimagnetic anti damage.

The series of electronic water meter base meter with compressive steel plate can prevent external magnetic, magnetic interference, and greatly enhance the ability of internal water pressure resistance, freezing pressure and pressure test through contrast test, SM-10 series meter base meter pressure value exceeds the national standard 5 times, beyond the same type water meter more than doubled.

9Flow meter function

thisA series of electronic water meters can provide real-time flow measurement, rated flow accuracy of 2 levels. The flowmeter water meter provides MODBUS international standard communication protocol, RS485 interface, which can be directly integrated with PLC devices, and is the best choice for low cost instrument and equipment flow monitoring. The intelligent electronic remote transmission water meter has a simple connection with the total wiring. The signal is safe and reliable, and there is no signal shielding failure. The lithium battery used for measurement is super long life, and real-time data and condition monitoring are completed automatically every day.

1, data transmission, remote meter reading degree: using electronic corridor 485 bus connection, after data acquisition package through GPRS data transmission, data accuracy can reach 100%, impact strength compared to the photoelectric remote vulnerable to light and water environment wireless remote meter is vulnerable to environmental impact of water meter installation, accurate rate is higher than that of direct reading and wireless water meter.

2, avoid the phenomenon of water hammer and so on: we use the water meterThe empty rotation filtering algorithm is used to solve the problem of the water meter's empty rotation.

3, measuring micro water: 0.00001 cubic meters, can effectively monitor the user's small amount of water, can realize the measurement of dripping water.

Modbus communication protocol of SM-10H full electronic water meter

1 protocol format

1.1 read register

Upper computer command:

notes: Station No.: 1 – 255, the number of words: 1~20, function number = 03H

First addressH: first address high head address L: lower first address. Address: 0000H-FFFFH

Lower machine answer:

notes: station number: 1-255, data with the main station, function number = 03H

CRC-L:CRC low position CRC-H:CRC high.

1.2 register definition (first address)

0000-0001: accumulative amount of water, BCD code, high bytes in front. Read only, reading needs to read 8B once.

Representation range: 0000.00 – 9999.9999 m3

0002-0003: reserved field, BCD code, read-only.

When reading, the amount of water must be read together with the reserved field. The address is0000, word length 4.

Routines:

Hair: 01 03 00 00 00 04 44 09

Collect: 01 03 08 12 34 56 78 00 00 71 57 7B C4

Explain: 12 34 56 78For the current amount of water,BCD code,4Bit integer,4Bit decimal, the actual value is1234.5678m3;

Note: the final number of the water meter certificateThe 2 digit number is a communication address and is HEX code. Generally, the factory is 0x01~0x99. If you need to modify the address, you can ask the manufacturer for the operating tool software.