Heat meters certified by MID and CE
- Category: >>>
- Supplier: Shanghai Mingwan Intelligent Instrument Co. Ltd.
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Product Overview
Description
The thermal energy meters produced by our company can provide qualification documents: CPA/CE/MID
Heat meter manufacturers specialize in providing various MBUS/RS485 modbus communication heat meters and wireless communicationLoRa and LoRaWAN heat meters.（AS923/KR920/UA915/US915/EU868/IN865/RU864/CN470）
For various specifications and models of heat meters and various communication methods, please contact customer service.
Default to power with built-in lithium battery, no additional power cord required
External power supply mode (optional), voltage range DC (7.5-24) V；
External power supply mode (optional), voltage range DC (7.5-24) V；
Product Description
Using microprocessor technology and micro-power technology, all energy consumption is calculated intelligently;
With dual measurement functions of heat and cold metering;
It can display various data required for the heat meter, and all the data are showed by English;
With power-off data protection and data recovery;
With error self-test and alarm function;
Has a low battery alert function;
Has 18 months of data storage and query function;
Infrared photoelectric data reading function;
Data communication interface: M-BUS, RS485 for data remote transmission and centralized control;
The integrator section can be removed for easy reading of values on site.
Measuring the actual heat consumption of the heat supplying facilities users in buildings.
Product components
Flow sensor
A component installed in a heat exchange system to collect water flow and send a flow signal.
Paired temperature sensor (PT1000)
A component installed in a heat exchange system that collects the temperature of water and sends out a temperature signal.
Calculator
Receives signals from flow sensors and paired temperature sensors to perform heat (cold) calculations, stores and displays the value of heat (cold) exchanged by the system.
With dual measurement functions of heat and cold metering;
It can display various data required for the heat meter, and all the data are showed by English;
With power-off data protection and data recovery;
With error self-test and alarm function;
Has a low battery alert function;
Has 18 months of data storage and query function;
Infrared photoelectric data reading function;
Data communication interface: M-BUS, RS485 for data remote transmission and centralized control;
The integrator section can be removed for easy reading of values on site.
Measuring the actual heat consumption of the heat supplying facilities users in buildings.
Product components
Flow sensor
A component installed in a heat exchange system to collect water flow and send a flow signal.
Paired temperature sensor (PT1000)
A component installed in a heat exchange system that collects the temperature of water and sends out a temperature signal.
Calculator
Receives signals from flow sensors and paired temperature sensors to perform heat (cold) calculations, stores and displays the value of heat (cold) exchanged by the system.
Working principle
When the water through the heat meter which installed in the heat exchange system, then
meter’s calculator calculates and display the release or absorption of heat energy according to
flow quantity from the flow sensor and the temp. signal of Inlet and Return flow from
matching temp. sensors, and the water flow through time，the formula is like this：
When the water through the heat meter which installed in the heat exchange system, then
meter’s calculator calculates and display the release or absorption of heat energy according to
flow quantity from the flow sensor and the temp. signal of Inlet and Return flow from
matching temp. sensors, and the water flow through time，the formula is like this：
In the formula：
Q——the release heat quantity from the medium kJ；
qm——the reheat liquid instantaneous mass flow quantity through the heat meter kg/s；
∆h——the specific enthalpy difference of heat carrying liquid from inlet
temperature and outlet temperature in the heat transfer loop kJ/kg；
temperature and outlet temperature in the heat transfer loop kJ/kg；
t——Time s。
Executive Standard
《CJ128-2007 Heat meter industrial standard》
《JJG225-2001 Heat meter verification regulation》
Specification
Diameter | Min Flow | Quantity of Flow | Max Flow | Length | |||
qmin（m³/h） | qp（m³/h） | qmax（m³/h） | mm | ||||
DN15 | 0.03 | 1.5 | 3 | 110 | |||
DN20 | 0.05 | 2.5 | 5 | 130 | |||
DN25 | 0.07 | 3.5 | 7 | 160 | |||
DN32 | 0.12 | 6 | 12 | 180 | |||
DN40 | 0.2 | 10 | 20 | 200 | |||
Measurement Accuracy | CJ128-2007Class 2 | ||||||
Connection | Threaded connection | ||||||
Pressure Loss | ≤0.02MPa | ||||||
Maximum Working Pressure（MWP） | 1.6MPa | ||||||
Flow Measuring Range | 1:100 | ||||||
Temperature Sensor | 1.5m standard a pair of PT1000 Temperature Sensor （cable length could be changed） | ||||||
Battery | 3.6V, Li-battery/DC 24V (can selected) | ||||||
Permanence | Service cycle≥6 years | ||||||
Data Storage | Continuous store of 18 months record | ||||||
Power-off Protection | After power-off, meter could save all the record of before flow rate and the corresponding time, after power back, it recovery measure function automatically, and ensure the time continuation | ||||||
Remote Transmission | M-bus、RS485、LORA（AS923/KR920/UA915/US915/EU868/IN865/RU864/CN470）、LORAWAN(AS923/KR920/UA915/US915/EU868/IN865/RU864/CN470）、NB-IOT | ||||||
Power Supply | High Power Lithium battery | ||||||
Protection Class | IP67 (IP68 need to modified) | ||||||
Environmental Class | Class B | ||||||
Temperature Range | （5～95）℃ | ||||||
Temperature Difference | (3~90)K | ||||||
Installation Way | Inflow or Return flow（Default is Inflow, for return flow need to indicate when ordering） | ||||||
Installation Position | Horizontal / Vertical | ||||||
Sensitivity of upstream flowfield | U10 | ||||||
Sensitivity of downstream flow field | D5 | ||||||
Display | 8-bit LCD display | ||||||
Anti-magnetic Disturbance | When the intensity of magnetic field interference is not more than 100 ka/m, should not affect water meter measurement and remote transmission characteristics | ||||||
Communication (can be customized) | ||
LoRa | 470MHz/868MHz/915MHz（AS923/KR920/UA915/US915/EU868/IN865/RU864/CN470） | |
LoRaWan | 470MHz/868MHz/915MHz（AS923/KR920/UA915/US915/EU868/IN865/RU864/CN470） | |
M-Bus | EN1434/CJ188 | |
RS485 | EN1434/CJ188/Modbus | |
Pulse Output | Customized | |
NB-IOT | Customized | |
Installation Precautions
General requirements for the installation
1、Attention：The installation instructions for trained personnel, therefore there isn’t introduce the basic operation steps, thermal cycle system must be mechanical forced circulation
system, the natural heat circulation system can’t satisfy the requirement of the heat meter pressure loss。
2、Heat meter must be installed in dry accessible place。
3、Using professional installation tools to install the heat meter。
1、Attention：The installation instructions for trained personnel, therefore there isn’t introduce the basic operation steps, thermal cycle system must be mechanical forced circulation
system, the natural heat circulation system can’t satisfy the requirement of the heat meter pressure loss。
2、Heat meter must be installed in dry accessible place。
3、Using professional installation tools to install the heat meter。
4、The heat meter both can be installed in Inflow pipe or Return flow pipe (factory default installed in the inflow pipe, if need to install on the return pipe, must be clearly indication before the factory during the production). When installation, should pay attention to the flow direction of medium is as the same as the arrow on the heat meter pipe body。
Special note: no matter the heat meter installed on inflow pipe or return flow pipe, the temperature sensor should be properly connected ( red label for inflow pipe, blue label for return pipe)。
Special note: no matter the heat meter installed on inflow pipe or return flow pipe, the temperature sensor should be properly connected ( red label for inflow pipe, blue label for return pipe)。
5、The installation position of heat meterin the pic, the M-1、M-2 show the right installation （ M-1 is horizontal installation 、 M-2 is vertical 4installation），The heat meter installed in the bottom of the pipeline, there is back pressure behind the meter, won’t produce bubbles affect measurement accuracy。 in the picture, M-3、M-4 show the wrong installation，M-3 easy to accumulate bubbles, affects the accuracy of measurement，M-4 although vertical installation, but there is not back pressure in the behind of meter, may cause the fluid cannot be completely full of pipes,
affect measurement accuracy。
6、When install the heat meter, front straight pipe length should not be less than 5 times of the pipe diameter, back straight pipe length should not be less than 2 times of the pipe diameter（see：《JGJ 173-2009 heating metering technology rules》Article 6.3.4）。
7、Pipe should be keep horizontal as much as possible, and pipeline’s sectional area should be not big changes。
8、In order to ensure the meter accuracy, the cable of temperature sensor shall not be cut short or make longer。
9、When the meter is vertical installation in the same position in each floor, between each meter should have partition wall, prevent pipeline leaking or other things falling to damage the meter。 10、Heat meter horizontal installation as the best location, which is beneficialto the meter is normal working 。
11、Suggest the meter installed in special box, and with lock, in order to avoid damage。
12、Replace the battery must by professional staff。
affect measurement accuracy。
6、When install the heat meter, front straight pipe length should not be less than 5 times of the pipe diameter, back straight pipe length should not be less than 2 times of the pipe diameter（see：《JGJ 173-2009 heating metering technology rules》Article 6.3.4）。
7、Pipe should be keep horizontal as much as possible, and pipeline’s sectional area should be not big changes。
8、In order to ensure the meter accuracy, the cable of temperature sensor shall not be cut short or make longer。
9、When the meter is vertical installation in the same position in each floor, between each meter should have partition wall, prevent pipeline leaking or other things falling to damage the meter。 10、Heat meter horizontal installation as the best location, which is beneficialto the meter is normal working 。
11、Suggest the meter installed in special box, and with lock, in order to avoid damage。
12、Replace the battery must by professional staff。
Attentions
1、Should be installed filters and valves in front and behind the meter；
2、Before heat meter installation, should be clean pipe, and the system；
3、In the installation process of pipe, fittings and meters, must not use “linen silk” sealing the fitting, because when turning screws, the “linen silk”will cut off by thread, the broken part is easy to cause congestion with flow through the meter ；
4、The meter has temperature sensor cable, when leave factory, no tighten. When installation, the cable should tighten, in order to avoid leaking (note: the meter installed in inflow temperature senor when the meter in the factory, according to the actual situation to properly installed the inflow or return flow temperature sensor)；
5、After installation, all parts should test, check whether leakage。 6、The lead seal on the ultrasonic heat meter cannot be damaged. If the seal is damaged, the manufacturer will not ensure the quality and accuracy；
7、Abnormal using condition (artificial and bad using environment, etc) caused by damage of ultrasonic heat does not belong to free warranty, when installation, should peruse the discipline, careful operation；
1、Should be installed filters and valves in front and behind the meter；
2、Before heat meter installation, should be clean pipe, and the system；
3、In the installation process of pipe, fittings and meters, must not use “linen silk” sealing the fitting, because when turning screws, the “linen silk”will cut off by thread, the broken part is easy to cause congestion with flow through the meter ；
4、The meter has temperature sensor cable, when leave factory, no tighten. When installation, the cable should tighten, in order to avoid leaking (note: the meter installed in inflow temperature senor when the meter in the factory, according to the actual situation to properly installed the inflow or return flow temperature sensor)；
5、After installation, all parts should test, check whether leakage。 6、The lead seal on the ultrasonic heat meter cannot be damaged. If the seal is damaged, the manufacturer will not ensure the quality and accuracy；
7、Abnormal using condition (artificial and bad using environment, etc) caused by damage of ultrasonic heat does not belong to free warranty, when installation, should peruse the discipline, careful operation；
Packaging & Shipping
Transportation and storage；
1. The water meter should be stored in the original package, the ambient temperature is 5-40℃, and the air is free of corrosive gases；
2. when the water meter is stored on the shelf, the stacking height of the boxes should not be more than 5 boxes；
1. The water meter should be stored in the original package, the ambient temperature is 5-40℃, and the air is free of corrosive gases；
2. when the water meter is stored on the shelf, the stacking height of the boxes should not be more than 5 boxes；
Company Profile
Shanghai Mingwan Intelligent Instrument Co., Ltd.Company Profile:Shanghai Mingwan Intelligent Instrument Co., Ltd. is a high-tech enterprise established in 2010. Mingwan Instrument is a manufacturer of water and heat meters with a history of 10 years.
Mingwan is a high-tech enterprise specializing in the development, production, sales and technical service of intelligent instrument technology. The product range includes: ultrasonic heat meters, mechanical heat meters, ultrasonic water meters, volume water meters, single jet and multi-jet mechanical or magnetic drive water meters, lora water meters, NB-IOT water meters, and other flow meters, electronic modules, and charge management system solutions Solution and system integration. All instruments are direct reading or remote transmission: pulse output, M-BUS, RS485, GPRS, LoRa, LoRawan, NB-IOT remote transmission.
The company has three standard SMT production lines, 10 heat meter test benches, 10 water meter test benches, 30 related testing equipment, and an annual production capacity of 1.5 million sets. The annual testing and measurement work complies with the strict national regulations. The company is currently a large-scale, multi-variety, and fully-equipped manufacturing enterprise in China. It is an ISO9001: 2008, ISO 4064 quality system certification enterprise.
We have the right to import and export independently. After more than ten years of product export and research and development, we have now become the designated manufacturers for OEM processing in Europe and the United States. Through cooperation and the introduction of foreign advanced technology, the quality of our products is reliable and we continue to meet the domestic market demand At the same time, 500,000 water meters and 400,000 heat meters are sold to more than 40 countries, including Southeast Asia, Europe, America, Africa, and Russia, and are favored by customers.
We have ten years of design and development experience. We have a team of professional engineers and advanced technology, and efficient after-sales service. We are willing to provide OEM and ODM products and solutions for all partners. We use flexible and responsive mechanisms to improve our communication efficiency.We look forward to contacting and cooperating with people from all walks of life, striving to meet your special requirements and providing you with quality products and services；
Mingwan is a high-tech enterprise specializing in the development, production, sales and technical service of intelligent instrument technology. The product range includes: ultrasonic heat meters, mechanical heat meters, ultrasonic water meters, volume water meters, single jet and multi-jet mechanical or magnetic drive water meters, lora water meters, NB-IOT water meters, and other flow meters, electronic modules, and charge management system solutions Solution and system integration. All instruments are direct reading or remote transmission: pulse output, M-BUS, RS485, GPRS, LoRa, LoRawan, NB-IOT remote transmission.
The company has three standard SMT production lines, 10 heat meter test benches, 10 water meter test benches, 30 related testing equipment, and an annual production capacity of 1.5 million sets. The annual testing and measurement work complies with the strict national regulations. The company is currently a large-scale, multi-variety, and fully-equipped manufacturing enterprise in China. It is an ISO9001: 2008, ISO 4064 quality system certification enterprise.
We have the right to import and export independently. After more than ten years of product export and research and development, we have now become the designated manufacturers for OEM processing in Europe and the United States. Through cooperation and the introduction of foreign advanced technology, the quality of our products is reliable and we continue to meet the domestic market demand At the same time, 500,000 water meters and 400,000 heat meters are sold to more than 40 countries, including Southeast Asia, Europe, America, Africa, and Russia, and are favored by customers.
We have ten years of design and development experience. We have a team of professional engineers and advanced technology, and efficient after-sales service. We are willing to provide OEM and ODM products and solutions for all partners. We use flexible and responsive mechanisms to improve our communication efficiency.We look forward to contacting and cooperating with people from all walks of life, striving to meet your special requirements and providing you with quality products and services；
Industry Exhibition
Water meter application
Our Service
1.We can do the designs according to customer’s requirements.
We can open their own molds according to customer’s requirements.
2.Small order is welcome, the MOQ is 1 pc.
3.Sampling inspection for each order.
4.Safe packing.
One by one test for the sample order.
5.100% factory direct sale
6.Prompt delivery.
We can offer you a good after-sell service.
7.Support OEM according to your requirements;
8.We are looking forward to contacting and cooperation with all circles,and try our best to meet your special requirements, and supply you with our excellent quality products and services.
We can open their own molds according to customer’s requirements.
2.Small order is welcome, the MOQ is 1 pc.
3.Sampling inspection for each order.
4.Safe packing.
One by one test for the sample order.
5.100% factory direct sale
6.Prompt delivery.
We can offer you a good after-sell service.
7.Support OEM according to your requirements;
8.We are looking forward to contacting and cooperation with all circles,and try our best to meet your special requirements, and supply you with our excellent quality products and services.
FAQ
Q:Why choose you ?
A:We have professional team of workers,service and testing equipments,and we have our own factory, so our price is reasonable；
Q:Do you offer customized packing?
A:Yes!All of our products can be packed as your requirement；
Q:Could you print our company logo on the nameplate and package?
A:Yes,we can；
Q: If products have some quality problem, how would you deal with?
A: We will responsible for all the quality problems；
Q: Can I get samples from your factory?
A: Yes, Samples can be provided；
Q. what is your payment term?
A: T/T 30% down payment, balance to be paid before shipment. or L/C；
A:We have professional team of workers,service and testing equipments,and we have our own factory, so our price is reasonable；
Q:Do you offer customized packing?
A:Yes!All of our products can be packed as your requirement；
Q:Could you print our company logo on the nameplate and package?
A:Yes,we can；
Q: If products have some quality problem, how would you deal with?
A: We will responsible for all the quality problems；
Q: Can I get samples from your factory?
A: Yes, Samples can be provided；
Q. what is your payment term?
A: T/T 30% down payment, balance to be paid before shipment. or L/C；
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