Ultrasonic heat meter

DN50-350 Large Diameter Ultrasonic Heat Meter

Overview

The DN50-350 large-diameter ultrasonic heat meter has a compact structure, easy installation, no mechanical wear, and is not affected by bad water. It adopts imported precision electronic devices to ensure high precision and high stability. The meter can be installed horizontally and vertically. , The integrator can be rotated 360 degrees for easy observation; can be installed in the water inlet pipe or return water pipe according to engineering requirements; both hot and cold, according to the actual use of the environment to determine the amount of heat or cooling smart. The main menu of the calorimeter shows total heat (kWh), accumulated cold (kWh), cumulative flow (m3), flow rate (m3/h), inlet water temperature (°C), return water temperature (°C), and inlet/outlet water temperature difference ( °C), heat meter number, cumulative working time; and can display current date, system meter reading date, storage of the first 18 months of operating data (heat, cold, flow); battery power shortage display and automatic diagnosis error function; With infrared and M-Bus remote transmission interfaces, remote meter reading functions can be realized to facilitate management and save operating costs.

Technical indicators

Installation Notes

● The heat meter must be installed in a dry, easily accessible place.

●Working environment: Temperature (-10~85) °C; Humidity (15~85)%.

●Installation diagram

Household type ultrasonic heat meter DN15-DN40

Overview

The RC type ultrasonic heat meter is a heat meter developed by our company for the status quo of hot water supply. The product adopts straight pipe design, featuring high measurement accuracy, no pressure loss, no clogging, stable operation and long service life. The product can be widely used for centralized heating and district heating systems for household measurement.

The product is easy to install indoors with an ambient temperature of 5°C-55°C.

The performance of the product meets all the technical requirements of the heat meter in the CJ128-2007 standard.

Function and features

● Measure and display the amount of heat consumed by the user.

● Water supply temperature display.

● Backwater temperature display.

● Supply and return water temperature difference display.

● Instant flow display.

● Straight tube design, no obstruction in the flowmeter, no wear, no plastic parts.

● The use of a high-quality, fully-enclosed transducer ensures the accuracy and stability of the flow measurement.

● The use of a high quality PT1OOO paired temperature sensor with a pairing error of <0.1°C.

●Using the patented technology, the flow tube does not change its diameter and has no pressure loss.

●Enclosure protection class IP68.

● Low initial traffic.

● It can be installed horizontally and vertically, and the head can be detached.

● With M-bus output interface, remote automatic meter reading function, (RS485) optional.

● Automatic error diagnosis function ensures safe and accurate operation.

●The battery box is external and can be disassembled. It is convenient and quick to replace the battery.

● The battery life is more than six years.

● The inlet and outlet pipes are optional for installation and installation (specify when ordering).

● It can store the calorie consumed every month for the first 24 months.

● With pulse input and output functions, both hot and cold.

Technical indicators

Installation Notes

1. Installation of heat meters

The installation site should avoid flooding, sun exposure, freezing and pollution, and facilitate disassembly and meter reading.

Thoroughly clean the system piping before installation and remove the debris in the pipe so as not to cause the flowmeter to malfunction.

The meter can be mounted horizontally or vertically, ensuring that the display window data is easy to read.

(4) The direction of water flow should be consistent with the arrow on the flow meter, and the flow direction of water flow must be upward when installed vertically.

(5) Before and after the diameter of the pipe to be consistent with the diameter of the flowmeter, and the front of the inlet straight pipe should not be less than 10 times the pipe diameter, the outlet pipe at the front end should not be less than 5 times the pipe diameter.

(6) A dirt filter should be installed at the inlet end of the heat meter, and shutoff valves should be provided at both ends to facilitate the removal of dirt and maintenance and replacement.

(7) The heat meter can be installed on the inlet or return pipe (pre-selected) according to the actual situation. It is recommended to install the inlet pipe.

(8) It is recommended to configure a dedicated hot meter box for management.

(9) When the installation space of the heat meter is limited and the environment is poor, we recommend using a split meter.

(10) The installation process should be carried out gently to prevent damage to the instrument.

(11) After installation, seals shall be made between the connection nut and the heat meter of the inlet and outlet of the heat meter and between the temperature measuring ball valve and the temperature sensor.

2. Temperature sensor installation

When the heat meter is installed in the water inlet pipe: The temperature sensor with red label should be installed on the temperature measuring hole of the heat meter body, and the temperature sensor with blue label should be installed on the temperature measuring seat dedicated to the return pipe.

When the heat meter is installed in the return pipe: The temperature sensor with the red tag should be installed on the dedicated temperature measuring seat for the inlet pipe. The temperature sensor with the blue tag should be installed on the temperature measuring hole of the heat meter body.

Temperature sensor wires must not be arbitrarily increased or decreased.

Intelligent water meter

Photoelectric direct reading type remote water meter/cold water hot water meter.

Product number

● Optical direct reading (dry type) wired remote cold (hot) water meter: LXSGY (LXSGRY)

● Photoelectric direct reading (liquid seal) wired remote cold (hot) water meter: LXSYY (LXSYRY)

Product specifications

The nominal caliber of water meters is used to represent: 15E, 20E, 25E, 32E, 40E.

product description

Photoelectric direct reading (dry) wired remote transmission cold (hot) water meter and photoelectric direct reading (liquid seal) wired remote transmission cold (hot) water meter is an intelligent water meter that can be used to measure a family or a residential unit, The total volume of cold (hot) water that the company flows through the tap water pipe. The photoelectric direct-reading module mounted inside the water meter can accurately read the metering data of the water meter in real time and send the metering data to various smart meter reading systems through wired transmission.

Features

● Optical direct reading (dry type) wired remote transmission cold (hot) water meter (LXSGY-15E~40E), (LXSGRY-15E~40E)

The series of water metering institutions adopts a combination of character wheel and pointer counting. Its flow and indicating mechanism adopts a dry-type magnetic air facsimile airtight structure, which completely avoids the pollution to the water meter indicating mechanism caused by the water quality in the pipeline. , keeping the metering data on the dial clear and clean. Double anti-magnetic ring structure design, anti-magnetic interference in line with international standards.

Twenty pairs of transmissive photoelectric sensors, combined with reliable reading code and automatic detection and automatic error correction, have strong anti-jamming performance, ensure accurate reading of meter data in real time, and can be applied to 485 interface and M-BUS The interface transmits metering data.

 ● Photoelectric direct reading (liquid seal) wired remote transmission cold (hot) water meter (LXSYY-15E~40E), (LXSYRY-15E~40E)

The series of water meter indicating mechanism adopts a combination of character wheel and pointer counting. At the same time, the specially processed liquid is injected into the completely sealed wheel box to avoid contamination of water meter indicating mechanism caused by the water quality in the pipeline. To keep the measuring wheel clear and clean.

Liquid-sealed photoelectric direct reading structure completely eliminates the failure of traditional photoelectric direct-reading table structure due to water erosion caused by photoelectric direct-reading module failure, and also uses twenty pairs of transmissive photoelectric sensors, combined with reliable reading coding and automatic detection and automatic error correction. , Has a strong anti-jamming performance, to ensure that the photoelectric direct reading module can be used for a long period of time. Suitable for 485 interface and M-BUS interface to transmit measurement data.

1. Technical Parameters

2. Flow range

2. Relative error

● The maximum allowable error is ±5% (cold, hot water) from the low flow area including the minimum flow rate to the demarcation flow rate (exclusive);

  ● The maximum allowable error is ±2% (cold water) from a high flow area including demarcation flow to overload flow (inclusive);

● The maximum allowable error is ±3% (hot water) from a high flow area including demarcation flow to overload flow (inclusive).

3. Operating temperature: (cold water) 0 °C ~ 30 °C; (hot water) 0 °C ~ 90 °C.

 4. Working pressure: ≤ 0.063MPa

 5. Pressure loss: ≤0.1MPa

 6. Operating voltage: 4.5V to 15V

 7. Working current: 10～30mA

 8. Transmission distance: (from water meter to concentrator) The maximum distance is 300m

 9. Anti-magnetic interference: 4000G

Wiring

485 interface wiring diagram:

                                                        L1 red line

                                                    L2 green line

                                                    L3 yellow line

                                                    L4 black line

Wiring instructions:

1.1 The L1 red line is the positive phase of the power supply;

 The 1.2L4 black line is a public ground;

 1.3L2 green line signal inverting output (B side);

 1.4L3 Yellow line signal normal output (A side);

 1.5 Lead length is generally 600mm and 800mm, but also according to customer requirements.

2. M-BUS interface wiring diagram:

                                                 L1 green line

                                                 L2 red line

Wiring instructions:

2.1 L1 green line M-BUS signal 1;

2.2L2 red line M-BUS signal 2;

2.3 The lead length is generally 600mm and 800mm. It can also be provided according to customer requirements.

Installation size and weight

 Water meter outline diagram:

Installation size and weight table

Installation and maintenance methods

1. Select the water meter diameter should be based on the diameter of the installation site and the size of the flow to select the appropriate diameter of the water meter.

2. The installation location should be chosen where it is convenient to disassemble and read meter data, and should avoid exposure to the sun, rain, flooding, pollution, and external magnetic interference.

3. When installing, avoid the introduction of hemp, tape, sand and other debris into the water meter pipeline, causing metering failures.

4. When installing, the valve should be installed on the pipeline in front of the water meter so that the water source can be turned off when the water meter is disassembled.

5. This series of water meters should be installed horizontally, with the dial face up, and the water flow indicator on the case should be consistent with the flow direction.

6. If the water meter is installed in the boiler or solar water heater inlet pipe, it should prevent the backflow of hot water causing damage to the water meter.

Water meter installation diagram:

7. During the installation, when the signal and power lead wires are connected with the system wires, devices such as wire connection boxes should be used to avoid output signal errors caused by the increased resistance at the wire connection due to the long use time.

8. When installing and debugging the system, contact the technical department of our company to ensure the good cooperation between the meter sending and the system.

Ultrasonic water meter (round shell) cold water meter

Overview

Ultrasonic water meters for accurate metering of water and the ability to provide records and data transmission for various applications of water supply lines.

Function and features

● No rotating parts, ultrasonic measuring principle to ensure long-term measurement under various complicated conditions;

● According to the user's requirements to set up a meter reading network, intelligent data collection;

Real-time data communication to ensure accurate and effective data;

● leak detection, pipe burst alarm, downstream countercurrent detection;

● Sensor life decay detection, air detection in the pipeline;

● rotatable head design, easy installation;

● distinctive pipe design to ensure the stability of water flow;

● can be installed in any location, the battery life is more than 8 years;

● IP68 protection level, suitable for a variety of complex environments;

● LCD display error code and alarm code;

● nominal diameter: DN15-DN40;

● Accuracy rating: 2.0.

Installation Notes

This installation manual is compiled for trained personnel and does not describe the basic operating procedures.

Ultrasonic water meters must be installed in a dry, accessible place.

3. Use a professional installation tool to install the ultrasonic water meter.

4. Ultrasonic water meters must be installed horizontally so that the direction of the arrow on the surface of the watch body is the same as that of the water flow. The water outlet should be higher than the ultrasonic water meter.

5. The newly installed pipeline must be cleaned of debris, silt, and hemp, and then install an ultrasonic water meter to avoid ultrasonic meter failure.

6. In order to obtain the best measurement accuracy, the inlet end of the ultrasonic water meter should be left as long as possible about 10D straight pipe, D is the ultrasonic water meter pipe

Ultrasonic water meter installation diagram

   A M-1 and M-2 in the figure show the correct installation method (M-1 is horizontal installation and M-2 is vertical installation). The water meter is installed under the pipeline. The back pressure of the water meter has back pressure and no air bubbles are generated. Affects the measurement accuracy.

B In the figure, M-3 and M-4 show the wrong installation method. The M-3 installation method easily accumulates air bubbles and affects the measurement accuracy. Although the M-4 is installed vertically, there is no back pressure at the back of the watch. The fluid can not completely fill the pipeline, affecting the measurement accuracy.

Ultrasonic wireless water meter Lora wireless remote meter

Overview

● Ultrasonic wireless water meter for accurate metering of water and recording and data transmission for various applications of the water supply line (using the latest Lora wireless data transmission).

Function and features

● No rotating parts, ultrasonic measuring principle to ensure long-term measurement under various complicated conditions;

● According to the user's requirements to set up a meter reading network, intelligent data collection;

Real-time data communication to ensure accurate and effective data;

● leak detection, pipe burst alarm, downstream countercurrent detection;

● Sensor life decay detection, air detection in the pipeline;

● rotatable head design, easy installation;

● distinctive pipe design to ensure the stability of water flow;

● can be installed in any location, the battery life is more than 8 years;

● IP68 protection level, suitable for a variety of complex environments;

● LCD display error code and alarm code;

● nominal diameter: DN15-DN40;

● Accuracy rating: 2.0.

LoRa Wireless Water Meter

● Intermittent pulse sampling technology: The periodic mechanical pulse information conversion electrical signal is sampled and measured. The “double reed pipe counting” method is adopted. The installation structure of the reed switch relay is improved and software filtering technology is combined to ensure the mechanical counter. Complete synchronization with electronic counting;

●LoRa spread spectrum communication technology

 high anti-interference, high reliability, high sensitivity, long distance transmission and other advantages;

● WOR electromagnetic wave wake-up technology: Instantly awaken the water meter to make it in the communication state, automatically return to the ultra-low power consumption state after the meter reading ends;

● PWM valve control technology: The pulse width modulation method is adopted to effectively reduce the large current generated by the valve action and prolong the service life of the battery.

● TDMA time division multiple access technology: a reasonable TDMA (time division multiple access) backoff algorithm to reduce the probability of data collision;

● Fully sealed design technology: It uses the latest nano-coating technology, no exposed electrodes, and good sealing to ensure stable operation of the circuit board in a wet environment.

IC card prepayment meter T5577 RF card

Overview

LXSY RF Card Prepaid Water Meter complies with National Standard GB/T778.1.2.3-2007 "Measurement of Water Flow in Closed Full Pipelines, Drinking Cold Water Meter and Hot Water Meter" and New Standard for Town Construction Industry Products CJ/T133-2012 "IC "Chilled water meter", factory inspection procedures implementation JJG162-2009 "cold water meter."

RF card prepaid smart water meter is a high-intelligence instrument composed of advanced high-tech electromechanical integration smart water meter developed by our company with advanced microcomputer control technology as the core and non-contact smart card technology as the medium of information transmission. Is a set of pre-paid, automatic measurement, status alarm and prevent improper use of such functions in one of the high intelligence products with accurate measurement, good performance, compact and reasonable structure and so on. The instrument is equipped with a new type of low-power, high-torque output voltage-loss motor control valve, microcomputer controller and radio frequency card operating system based on rotor-type water meter. Using advanced encryption technology to implement a form of a card to ensure the safety of user data. The product performance index complies with the national standard GB/T778.1.2.3-2007 and the Ministry of Construction industry standard CJ/T133-2001 can be applied to the measurement and charging of water for residential, enterprises and utilities. The use of this product has changed the traditional way of water management change "first water, then pay" to "pay first, after the water" greatly facilitates the management of residential property management departments and water management departments.

Function and features

● Pre-paid function: The user will use the water after being filled, and the user will automatically shut off the water after arrears.

● Display synchronization function: The liquid crystal display and the mechanical part display are synchronized. Even if the circuit is faulty, the liquid crystal cannot be displayed. Refer to the mechanical display.

● Prompt alarm function: battery under voltage, lack of available water, strong magnetic interference and other fault information, will be prompted on the LCD alarm.

● Data upload function: Each time the user purchases water, relevant information will be brought back to the management system, so that the management can understand the user's water situation and the status of the table.

● Valve self-maintenance function: The valve rotates regularly to ensure the flexibility of the valve.

● Anti-dumping function: The software can flexibly set the minimum charge limit to prevent users from drowning.

● Anti-dripping function: With anti-dripping base table, to achieve anti-dripping function.

● Easy to replace the battery: There is a cover designed to replace the battery on the back side of the water meter. It is particularly convenient to replace the battery. Changing the battery in batches is no longer a problem in the water department.