Ultrasonic heat meter 15 to 40

Products overview:

ZW - the LCR - H seriesUltrasonic heat meterCollection is the temperature of the water and temperature signal components.Generally adopts thermal resistance temperature sensor, material resistance varies with temperature.Heat meter USES is Pt1000 matching temperature sensor, matching error ﹤ 0.1 ℃.A red flag, installed in the inlet, a blue flag, installed in the outlet.Pt for platinum formula, it has large temperature coefficient and to a certain temperature range the characteristics of the temperature coefficient is a constant.R0 = 1000, namely 0 ℃, the temperature sensor of the resistance of 1000 Ω;Meter (table) : a collection of water flow and signal flow of parts.

Ultrasonic heat meter with wigan type flowmeter.Most of the current domestic IC card water meter adopts magnetic rotation, double reed pipe receives the pulse count, but the dry reed pipe connect number only about 107 times (current is switched on for 10 mu A), if the flow rate is 2.5 m3 / h, and 100 pulses/m3, so the working life of the reed pipe only 40 x 103 hours, after the development trend of using wiggins components.

Second, the working principle:

ZW - the LCR - H 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 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 - H 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, can be installed in horizontal and vertical direction.

2, high temperature measurement precision, long service life.

3, as well as measuring quantity of heat, and cold quantity measurement, can also be cold and heat metering.

4, flowmeter signal is proportional to the flow of the pulse.

5, a pair of temperature analog signals of temperature sensor are presented.

6, calculate the heat exchange system by integrating formula obtained by heat.

Five, the technical parameters:

1, meter diameter: 15.20.25.32.40;

2, the instrument precision: level 2 or level 3;

3, the pressure loss: less than 25 kpa;

4, work pressure: 1.6 mpa;

5, temperature range: + 4 ~ 95 ℃;

6, installation method: horizontal or vertical installation;

7, the temperature sensor: PT1000 platinum resistance;

8, heat carrier: water is H2O;

9, according to figures: eight.

Six, heat meter, use and maintenance instructions:

1, should be selected according to the heating or air conditioning system work flow heat meter, the heat meter common flow qp close system work flow is advisable.

2, heating or cooling system of water quality should meet the requirements of the state and industry.

3, heat meter should be installed in easy to see, and the location of the maintenance and management.In the direction of flow must ensure consistent with the direction of the heat meter mark.

4, for the new heating or air conditioning system, before installing the heat meter, it is important to first alternative tube heat meter, with pressure is 1 mpa clean water system pipe stones, sediment, linen yarn, welding slag, such as clutter is rinsed clean, then change the heat meter.

5, heat meter inlet filter must be installed.Heating season end of year, should be according to the provisions of this section procedure for filter cleaning;Also can according to the actual working condition of the system according to prescribed procedures on a regular basis to clean.

6, filter cleaning maintenance program

1) first of all, shut off the heat meter front end locking valve inflow temperature ball valve.

2) carefully removed the filter mesh and cleaning (pay attention to clean to avoid the mesh distortion).

3) install screen and open the inlet temperature ball valve.

4) slowly open lock valve of the heat meter front end.

7, ultrasonic heat meter in use process should avoid high temperature, strong vibration and impact, frozen, and a large amount of dust and other bad environment, install it in a heat preservation heat meter box.

8, heat meter displays shall be water soaking and should avoid direct sunlight.Don't pulling on the temperature of the heat meter, conductor and traffic signal wire sensor.

9, after the heating of the heat meter using at least one season, before each heating season officially began, the system must be in commonly used one over ten traffic environment running more than two hours of warm water.

Seven, the data indicator:

Eight, 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.