Hersman temperature transmitter

1.Product Overview and Technical Advantages

The Hesmann temperature transmitter adopts advanced sensing technology and signal processing circuits, which can precisely convert the weak signals collected by Temperature Sensors such as thermocouples and thermal resistors into standard 4-20mA current signals or digital communication signals. This series of products has the following outstanding advantages:

·High measurement accuracy:up to ±1%FS, meeting the requirements of precise control

 ·Strong environmental adaptability:Wide operating temperature range, with the highest protection level reaching IP67

 ·Excellent anti-interference ability:Electromagnetic compatibility complies with IEC standards

 ·Easy installation and maintenance: Modular design, supports rail installation or direct installation

2. Detailed Explanation of Product Series

·Basic type temperature transmitter

This series of products is renowned for its outstanding cost performance and is suitable for most conventional application scenarios:

Output signal: 4-20mA/HART protocol

Ambient temperature: -40℃ to +85℃

Electrical isolation: Isolation of input/output/power supply

Typical applications: HVAC, water pump units, conventional industrial equipment

·Intrinsically safe explosion-proof temperature transmitter

Specially designed for hazardous locations, it has complete explosion-proof certification

Explosion-proof grade: Ex ia IIC T4 Ga

Certification systems: ATEX, IECEx

Safety parameters: Ui=30V, Ii=100mA, Pi=1.2W

Applicable occasions: Petrochemical industry, natural gas processing, dust environment

·Intelligent communication type temperature transmitter

Integrate advanced digital communication functions to support device management and remote monitoring:

Communication protocol: PROFIBUS PA/Foundation Fieldbus

Equipment diagnosis: Self-diagnosis, pre-maintenance reminder

Parameter Settings: Remote configuration, range adjustment

System integration: Seamless connection between DCS and PLC

3. Analysis of Key Points for Selection

·Sensor matching

When selecting the type, the compatibility with the Temperature Sensor should be given priority consideration:

Thermocouple types: K type, S type, B type, etc

Thermal resistance types: Pt100, Pt1000

Connection methods: two-wire system, three-wire system, four-wire system

·Environmental adaptability

Select the appropriate product specifications based on the installation environment

Protection grade: IP54/IP65/IP67

Explosion-proof requirements: General type/intrinsically safe type/flameproof type

Ambient temperature: -40℃ to +85℃

·System integration requirements

Consider compatibility with the existing control system:

Signal type: Analog/digital

Communication protocol: HART/PROFIBUS/Foundation Fieldbus

Power supply specification: 24VDC/220VAC

4. Typical Application Cases

·Case One: Application in the Petrochemical Industry

A certain oil refinery has adopted Hersman intrinsically safe explosion-proof temperature transmitters in its catalytic cracking unit, achieving precise monitoring of reactor temperature. The product operates stably, effectively resisting the interference of the harsh on-site environment and ensuring production safety.

·Case Two: Application in the Power Industry

In the boiler system of the power plant, the Hesman intelligent communication type temperature transmitter is selected and integrated with the DCS system through the PROFIBUS PA protocol, achieving remote monitoring and intelligent diagnosis of temperature and improving the operation and maintenance efficiency.

Hirschmann temperature transmitters, with their reliable product performance and comprehensive product range, can meet the application requirements of various industrial scenarios. Correct selection and standardized installation and maintenance are the keys to ensuring the long-term stable operation of equipment.