PL Type Heat Meter Sensors

Your Professional PL Type Heat Meter Sensors Supplier

Chongqing Duchin Instrument Co., Ltd. specializes in the research, development, manufacturing, and distribution of temperature sensors and related equipment. The company’s primary product offerings include thermocouples, resistance temperature detectors (RTDs), compensation cables, electric heaters, thermocouple vacuum calibration devices, and composite metal protective tubes. In addition, the company undertakes instrumentation and control system projects based on customer requirements.

Why Choose Us

Team & Service

Our team is a dynamic,Quickly respond to customer needs, experienced technical team, provide design and customization services.

Wide Range of Applications

Our products are widely used in FTTH (Fiber to the Home) and FTTA (Fiber to the Antenna) applications.

Our Certificates

We have established a quality assurance system compliant with ISO9001 standards. Our products are strictly tested according to IEC, GR-326-Core, GR-3120-Core, GR-771-Core, and GR-1221-Core standards to ensure superior performance and reliability.

Broad Market

Our products are exported to a wide range of Market layout in Asia, Europe, Middle east, North America, South America, Africa.Products are exported over 50 countries, and are widely recognized by customers.

Parameter

Accuracy	Class A,Class B
RTD probe	Ø6;SUS304
Thermowell	Ø8;SUS304
Structure	Connection box 200℃
Process connection	G1/2B
Fitting length	85(105),120(140),210(230)mm be standard
Temperature	0 to 150℃
Temperature difference	△Tmin ≤3℃
	≤0.1℃ within one pair
Insulation resistance	≥100MΩ under normal condition
Protection class	IP54
Ambient conditions	0 to 70℃

Advantages of PL Type Heat Meter Sensors

High Accuracy and Stability

Platinum resistance thermometers (PRTs) like PT1000 sensors offer high precision and consistency in temperature measurement, crucial for accurate energy billing and system optimization.

Wide Temperature Range

These sensors can operate effectively across a broad range of temperatures, making them suitable for diverse heating and cooling applications.

Long-Term Stability

They maintain accuracy over extended periods, minimizing the need for frequent recalibration.

Durability

Their robust construction allows them to withstand harsh environments, contributing to the longevity of the heat meter.

Facilitate Precise Energy Calculations

The accuracy of these sensors directly contributes to precise calculation of energy consumption based on temperature differences between incoming and outgoing fluid.

Applications of PL Type Heat Meter Sensors

● Electric power plants (temperature is an indicator of component overheating)
● Home appliances, where thermistors are not sufficient
● Industrial process control and factory automation
● Food and beverage manufacturing
● Metals and pulp and paper processing mills
● Environmental monitoring and studies
● Scientific research and development (R&D)
● Pharmaceutical and medical supply manufacturing and test
● Automotive systems and testing applications, hot and cold weather testing, brake tests, ADAS tests, combustion analysis, and more
● Aircraft and rocket engine systems and testing
● Satellite and spacecraft manufacturing and test

Installation Precautions for PL Type Heat Meter Sensors

● Sheathed PL type heat meter sensors with long protective tubing are coiled for shipping. Straighten the tubing by unwinding it in the opposite direction, without twisting it.
● Do not excessively bend the section connecting the protective tubing to the lead wires of exposed-lead wires models. Do not insert this section into the sensing object.
● Do not pull the lead wires with force. Doing so may cause broken wires at the connected section.
● When measuring at high temperatures that cause the protective tubing to warp, either insert the PL type heat meter sensor vertically or use an appropriate means to hold the PL type heat meter sensor in place.
● To obtain more accurate values, maintain the temperature of the exposed protective tubing to prevent heat loss through heat dissipation.
● If inductive noise is generated in the PL type heat meter sensor due to power lines or other source, either change the installation position of the PL type heat meter sensor and lead wires or provide a shield for the lead wires.
● Use airtight PL type heat meter sensors for applications using sensing objects below room temperature, to prevent condensation within the protective tubing and faulty insulation.
● Do not use the PL type heat meter sensor in locations that may expose the terminals to water or other liquid.
● PL type heat meter sensors are precision devices. Do not subject the PL type heat meter sensors to shock. Take particular care with products that have ceramic components (ceramic protective tubing, platinum resistance thermometers).

Ordering Process

1. Please tell us the model and quantity and other request you need.
2. We make the PI for you.
3. After you confirm the PI, we arrange the order for you after receiving your payment.
4. After the goods finished, we send the goods out to you and tell you the tracking number.
5. We will track your goods until you receive the goods.

Packaging and Shipping

Packaging	All products, we will pack them carefully, items will be pakaged with PP bag, carton or any other protective stuff if necessarily, then placed in pallets or plywood case.
Shipping	We ship by Express, by air, by sea, by train. Normally we checked and compare, then provide customer the most proper shipment method.

Our Factory

The establishment of Chongqing Duchin Instrument CO., LTD was marked in 1995, located at No. 290 Fengshixing Road, Beibei District, covers area over 11'000m2.

Certifications

FAQ

Q: What is a heat meter sensor?

A: A heat meter sensor is a device used to measure the flow and temperature of a fluid (such as water or steam) and calculate heat consumption through a formula. It is widely used in central heating, central air conditioning, industrial heat energy metering and other scenarios. Its core function is to achieve accurate measurement and management of heat energy.

Q: What are the core components of heat meter sensors?

A: Flow sensor: Measures fluid flow rate (such as turbine type, ultrasonic type).
Temperature sensor: Monitors supply and return water temperature (such as Pt100/Pt1000 thermal resistor, thermocouple).
Signal processing unit: Calculates the product of temperature difference and flow rate, outputs heat value, and supports data transmission.

Q: Why is Pt1000 often used as a temperature sensor in heat meter sensors?

A: The resistance value of Pt1000 thermal resistor is 1000Ω at 0℃, with a high resistance temperature coefficient (0.00385Ω/℃), and the temperature measurement accuracy can reach ±0.3℃. Especially in the measurement of small temperature differences (such as 5~10℃), the error is smaller, which meets the high-precision requirements of heat meters.

Q: How does a heat meter sensor work?

A: Temperature sensors work by providing readings via electrical signals. Sensors are composed of two metals that generate an electrical voltage or resistance when a temperature change occurs by measuring the voltage across the diode terminals. When the voltage increases, the temperature also increases.

Q: How to check if a heat meter sensor is working?

A: Compare readings with a known accurate thermometer.
Monitor for consistent readings in stable conditions.
Observe response to temperature changes.
Check output signal using a multimeter.
Perform a simple ice water or boiling water test.
Inspect for physical damage or corrosion.

Q: What are the protection levels and material requirements for heat meter sensors?

A: Outdoor installation requires IP68 (long-term underwater) or IP65 (water spray proof), and the housing is usually made of 316 stainless steel or PPS engineering plastic. Parts in contact with fluids must be corrosion-resistant (for example, stainless steel is selected for chloride-containing media).

As one of the leading pl type heat meter sensors manufacturers in China, we warmly welcome you to buy pl type heat meter sensors made in China here from our factory. All customized products are with high quality and competitive price.