Ultrasonic heat meter 50-300

Products overview:

ZW - the LCR - G seriesUltrasonic heat meterHas the characteristics of compact structure, convenient installation.This product USES the high quality of piezoelectric ceramic transducer to ensure the high accuracy and stability;No mechanical movement, no wear, not easily affected by the bad water quality and the maintenance cost is low;Can be installed in horizontal or vertical, rotating header can satisfy the requirement of any Angle reading, when installed, can according to different users need to install on the intake pipe or backwater pipes (to be selected in advance);Cold hot amphibious type (heating, cooling, heat meter can be used according to the actual situation of intelligent diagnose heating or cooling condition and measured respectively.Can add the M - BUS according to the needs of different users, RS485 interface to implement remote automatic meter reading function, easy to centralized management.

Second, the working principle:

ZW - the LCR - G series ultrasonic heat meter is used to measure and display the water through the heat exchange system to release or absorb heat meter, ultrasonic heat meter is installed in the entry or exit of heat circuit, is used to heat consumption of the heating facility accurate metering and charging control of intelligent heat meter.Its working principle is in heat exchange heat meter installed in the system, when the water flow through the system, according to flow and the flow sensor gives matching temperature sensor is given for the return water temperature, and flow through time, through the calculation of the calculator and display the heat release or absorption by the system.

Three, display function:

ZW - the LCR - G series ultrasonic heat meter continuous press the key on the surface plate heat, heat energy table cycle showed that total quantity of heat, the accumulative flow rate, the accumulative amount of cold (cold/hot scale have), water temperature.Return water temperature, water temperature difference, the instantaneous flow rate and working time, table number, software version.Long press can enter the secondary test menu, heat energy table circulation shows: accumulation, accumulated heat flow and transient flow, water temperature, water temperature, check the pulse.

Four, the main features:

1, ultrasonic time difference measurement, high accuracy of flow measurement;

2, measuring mechanism has no mechanical moving parts, it will never wear, long service life;

3, prevent sex good, adapt to the domestic water quality, low maintenance cost;

4, into the backwater pipes installed arbitrarily, convenient for construction;

5, integrating instrument case structure, adjustable Angle direction, easy to count;

6 any installation, horizontal, vertical, inclined, and there is no straight pipe requirements;

7, key parts: PT1000 chips, totalizer.especially with German imports, long-term working stability, high accuracy;

8, pipeline vibration does not affect the measurement;

9, straight through ultrasonic channel, signal without interference;

10, low pressure loss;

11, the standard M - BUS and RS485 BUS communication interface, convenient for data remote transmission and centralized control;

12, error self-diagnosis function, under abnormal condition, there is an error message function, ensure safe and accurate;

13, ultra low power design, the battery life can reach more than 6 years;

14, with low battery capacity to remind function.

15, one-piece structure, beautiful appearance;Menu design, simple operation, easy reading.

16, with dust-proof, moisture-proof, waterproof, prevent disassembly, and other functions.

Five, the technical parameters:

1 and after sex: better than + / - 0.5%;

2, measuring cycle: 3 seconds by default (optional) 1-31 seconds;

3, operations: magnetic bar operation, internal double button;

4, signal output: RS232, RS485, 4-20 ma, M - BUS, pulse output optional;

5, communication protocol: standard M - BUS and the expansion of SONY card agreement;

6, flow velocity, low flow initiating zui measurable liquid velocity of 0.01 m/s;

7, suitable temperature, medium temperature 0 ℃ to 160 ℃, environment temperature and 40 ℃ to 80 ℃ (LCD monitor - 25 ℃ to 60 ℃).

8, temperature probe: platinum resistance PT500 or PT1000;

9, small heat temperature range: 0-105 ℃;

10, large diameter hot table temperature range: 0-160 ℃;

11, protection grade: IP68;

12, mode of power supply: 3.6 V lithium battery can work for 6 years and optional battery can work for more than 10 years, when the voltage of 2.6 V work normally

DC24V (two wire system);

13, power consumption: measuring cycle for 3 seconds, when the pipe diameter 100 mm average power consumption is 0.55 mW;

1 second measurement cycle, the diameter of 100 mm when the average power consumption is 1.65 mW atc automatic enter power saving mode, reduce the power consumption to 30%, can prolong battery life.

Six, hot table form:

The thermal flow sensor, matching of temperature sensor and a calculator.The appropriate heat meter inlet filter installation.

1, calculator (integrator)

Receive signals from the sensors in the flow sensor and matching temperature, heat calculation, storage and display system, the exchange of heat value of the parts.

2, the flow sensor (meter)

Installed in the heat exchange system, used for collecting water flow and signal flow of parts.

3, matching the temperature sensor (paired platinum resistance)

Heat at the same table, which is used to measure the inlet and outlet temperature of heat exchanging system of a pair of metrological characteristics consistent or similar temperature sensor.

Seven, construction installation considerations:

1, when using a split type heat meter, integrator and the distance of the flow sensor should not be more than 10 m.

2, bubble for accurate measurement of interference is very big, have good exhaust measures when installation requirements.

3, the installation of flow sensor.

1) heat meter with flow sensor can be installed in the heating supply and return water pipe.

2) heat meter with flow sensor should be installed in a diameter equal to the nominal diameter of pipeline, and in the front-end and back-end respectively set the specified length of straight pipe (provided by the product samples, general table before 20 ~ 30 times for the nominal diameter of straight pipe, the table after 10 times for the nominal diameter of straight pipe section).

3) should be considered when installing a flow sensor allow easy reading space and maintenance.

4) should be paid attention to when installing flow sensor in the direction of flow, and in the flow sensor before and after setting isolation valve.

5) flow sensor should be installed in a horizontal position, header vertical upward;The flow sensor front-end should install filters.

4, the installation of the temperature sensor

1) temperature sensor must be installed within the flow sensor of straight pipe outside;Installed temperature sensor of water temperature should be uniform.In the installation and flow sensor in the same root canal (water supply and return pipe) temperature sensor, install it at the rear end of flow sensor (downstream);

2) temperature sensor should not be installed on the pipeline higher position () may not be filled with liquid, and close zui could divert place distance d (to avoid the water temperature caused by the uneven phenomenon), the size of the d value provided by the manufacturer.

3) to determine the depth of the temperature sensor inserted into the pipe, should be to make the temperature sensor, located in the center and the position of the lower pipe for the principle.

4) in the sheath nearby temperature sensor, appropriate installation sheath, the other is used to insert detection using the standard thermometer.

5, the installation of the integrator

1) integrator the location environment temperature cannot exceed manufacturers indicate the range of temperature.

2) integrator and connecting cables, cables and connections between the parts, according to the regulations of the manufacturer.

3) if the integrator need external power supply, must conform to the manufacturer to provide the electric parameters and the requirements of the wiring diagram.

Eight, parameter table:

Nine, design selection order information:

When ordering, please specify the name of the measured medium, working pressure, medium temperature, flow rate (velocity) range of pipe sizes and pipe network under test conditions, etc.If you have any questions please call the company technical or sales manager.

After-sales service commitment:

1, our company sold by ultrasonic heat meter series products appear quality problem, within twelve months for free maintenance.

2, the warranty period, any quality problems such as the products of our company, my company is responsible for free repair or replacement.

3, the warranty period, such as user improper use, damaged products, my company is responsible for the maintenance, charge damage parts cost.

4, after the warranty period appear quality problem, my company is responsible for the maintenance, charge damage parts cost.

5, such as user need to my company site services, to users in the province I company service personnel to reach the site within 12 hours, fujian association of foreign languages and user reach the site within 48 hours.