Wholesale of domestic temperature transmitter sensors

1、 Composition structure

Temperature probe: thermocouple (such asKTheSType) or thermistor (such asPt100TheCu50）.

Transmission module: integrated amplification, linearization, cold junction compensation (thermocouple)V/IConversion and other circuits are packaged in a junction box.

2、 Workflow

Temperature signal → Electrical signal (thermoelectric potential)/Resistance change) → Zeroing and compensation (such as cold end compensation) → Signal amplification and linearization → Output4~20mAStandard signal to display instrumentPLCorDCSsystem

3、 Performance characteristics

Protection levelIP54/IP65(Dustproof and waterproof).

Explosion proof grade can be selecteddIIBT4/dIIBT6Suitable for flammable and explosive environments.

Accuracy: Basic accuracy≤0.5%FS(Intelligent reachable)0.2%FS）.

Anti interference: two-wire transmission, shielded cable design, suitable for long-distance transmission (load resistance)≤600of).

Environmental adaptability:

Temperature compensation: automatic cold junction compensation (thermocouple), non-linear correction (positive feedback for thermal resistance).

4、 Economy and convenience

Eliminate compensating wires (thermocouple type) to reduce wiring costs.

Modular design (size can be as small asφ44×18mm）Replace traditional sensors directly

5、 Application Fields and Scenarios

field typical scenario Applicable sensor types

industrial process Temperature monitoring of petrochemical reaction vessels and metallurgical furnaces Thermocouple（K/SType,0~1800℃）

Energy and Electricitygenerator/Transformer temperature monitoring Thermal resistance（Pt100，-200~600℃）

living facilities 供水/Heating pipes and air conditioning systems Thermal resistance（Cu50，-50~150℃）

Chemical Environment Chemical plants, mines Intrinsic safety explosion-proof type（dIIBT6）

Note: Thermocouples are suitable for high temperatures, while thermal resistors are suitable for medium to low temperatures

VISelection and installation precautions

Key selection points：

Range matching: such as high temperature (>)1000℃) needs to be selectedS/BType thermocouple, low temperature selectionPt100Thermal resistance.

Output requirement: Basic scenario selection4~20mAWhen remote configuration is required, selectHARTProtocol intelligent type (supportsPC/Handheld calibration).

Environmental adaptation: Vibration election epoxy resin sealing type; Choose special materials for corrosive environments.

7Installation specifications：

Avoid strong electromagnetic interference sources, ground the casing, and useΦ10Shielded cable.

Environmental temperature>70At ℃, the transmitter and display instrument are installed separately.

Regular calibration (every6Months) to ensure linear accuracy.

8technology trends

Intelligence: IntegrationHART/FFProtocol, supports remote service and adaptive calibration.

Integration of the Internet of Things: docking with the industrial Internet platform to achieve predictive maintenance of big data.

Summary: The integrated temperature transmitter has become a universal device for industrial temperature measurement due to its integrated design, reliability, and environmental adaptability. When selecting, it is necessary to comprehensively consider the temperature range, environment, and intelligent requirements, and strictly follow the installation specifications to maximize its effectiveness in process control and safety assurance.