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- Sensor Compatibility: Designed specifically for Pt100 RTD sensors, supporting both 2-wire and 3-wire configurations for flexible installation and compensation of lead resistance.
- Temperature Range: Measures temperatures from –50°C to +350°C, covering a broad spectrum suitable for industrial process control, HVAC systems, and laboratory instrumentation.
- Output Signal: Provides a linear analog output of ±5 V, corresponding to the full temperature range, enabling direct interfacing with analog input modules, data acquisition systems, or control units.
- Signal Scaling: The module features a conversion factor of 10 mV/°C, ensuring straightforward interpretation of the output voltage in relation to the measured temperature.
- High Accuracy and Stability: Optimized for precise temperature measurement with minimal drift, ensuring reliable long-term performance in demanding environments.
- Compact and Robust Design: Built for integration into control panels, DIN rail systems, or custom enclosures, with durable materials suitable for industrial use.
- Ease of Integration: Compatible with standard automation and control systems, simplifying implementation in both new and existing installations.
- Low Noise and High Linearity: Engineered for low signal noise and excellent linearity across the entire measurement range, ensuring accurate and repeatable readings.
- Temperature Range: Measures temperatures from –50°C to +350°C, covering a broad spectrum suitable for industrial process control, HVAC systems, and laboratory instrumentation.
- Output Signal: Provides a linear analog output of ±5 V, corresponding to the full temperature range, enabling direct interfacing with analog input modules, data acquisition systems, or control units.
- Signal Scaling: The module features a conversion factor of 10 mV/°C, ensuring straightforward interpretation of the output voltage in relation to the measured temperature.
- High Accuracy and Stability: Optimized for precise temperature measurement with minimal drift, ensuring reliable long-term performance in demanding environments.
- Compact and Robust Design: Built for integration into control panels, DIN rail systems, or custom enclosures, with durable materials suitable for industrial use.
- Ease of Integration: Compatible with standard automation and control systems, simplifying implementation in both new and existing installations.
- Low Noise and High Linearity: Engineered for low signal noise and excellent linearity across the entire measurement range, ensuring accurate and repeatable readings.
1. Product Overview
Product Name: Pt100 Module
Model: MDTPT3402
Series: MDT PT Series
Article Number: MDTPT3402
Manufacturer: MDT (Manufacturer of industrial measurement and automation components)
The MDTPT3402 is a precision temperature measurement module designed for use with Pt100 resistance temperature detectors (RTDs). It supports both 2-wire and 3-wire connection configurations and provides a linear analog output signal proportional to the measured temperature. The module is engineered for industrial and laboratory environments requiring accurate temperature monitoring and signal conditioning over a wide range of operating conditions.
2. Key Features
- Sensor Compatibility: Designed specifically for Pt100 RTD sensors, supporting both 2-wire and 3-wire configurations for flexible installation and compensation of lead resistance.
- Temperature Range: Measures temperatures from –50°C to +350°C, covering a broad spectrum suitable for industrial process control, HVAC systems, and laboratory instrumentation.
- Output Signal: Provides a linear analog output of ±5 V, corresponding to the full temperature range, enabling direct interfacing with analog input modules, data acquisition systems, or control units.
- Signal Scaling: The module features a conversion factor of 10 mV/°C, ensuring straightforward interpretation of the output voltage in relation to the measured temperature.
- High Accuracy and Stability: Optimized for precise temperature measurement with minimal drift, ensuring reliable long-term performance in demanding environments.
- Compact and Robust Design: Built for integration into control panels, DIN rail systems, or custom enclosures, with durable materials suitable for industrial use.
- Ease of Integration: Compatible with standard automation and control systems, simplifying implementation in both new and existing installations.
- Low Noise and High Linearity: Engineered for low signal noise and excellent linearity across the entire measurement range, ensuring accurate and repeatable readings.
3. Technical Specifications
- Model: MDTPT3402
- Sensor Type: Pt100 (Platinum Resistance Temperature Detector)
- Connection Type: 2-wire or 3-wire configuration
- Measurement Range: –50°C to +350°C
- Output Signal: ±5 V analog output
- Signal Scaling: 10 mV/°C
- Output Type: Voltage output, bipolar
- Accuracy: Typically within ±0.1% of full scale (depending on sensor and wiring configuration)
- Linearity: Better than ±0.05% of full scale
- Response Time: Typically <1 second (depending on sensor and system configuration)
- Input Impedance: High impedance input for minimal sensor loading
- Output Impedance: Low impedance output for stable signal transmission
- Power Supply: Typically 12–24 V DC (nominal, depending on system configuration)
- Operating Temperature: –20°C to +70°C (module ambient)
- Storage Temperature: –40°C to +85°C
- Dimensions: Approx. 90 mm (L) × 22.5 mm (W) × 60 mm (H) (typical for DIN rail modules)
- Weight: Approx. 100–150 g (depending on housing and connectors)
- Housing Material: Industrial-grade polycarbonate or ABS enclosure, flame-retardant
- Mounting Type: DIN rail (EN 60715) or panel mount
- Electrical Connections: Screw terminals or plug-in connectors for sensor and output wiring
- Isolation: Galvanic isolation between input, output, and power supply (if applicable)
- Protection Class: IP20 (for standard enclosure)
- Compliance: CE-marked, RoHS-compliant
4. Functionality
The MDTPT3402 functions as a signal conditioning module for Pt100 temperature sensors. It converts the resistance change of the Pt100 element, which varies with temperature, into a proportional voltage output. The module supports both 2-wire and 3-wire sensor connections:
- 2-Wire Configuration: Simplified wiring, suitable for short cable runs where lead resistance is negligible.
- 3-Wire Configuration: Compensates for lead resistance, improving measurement accuracy over longer distances.
The module’s internal circuitry linearizes the Pt100 sensor’s resistance-temperature relationship and scales the output to ±5 V, corresponding to the full temperature range of –50°C to +350°C. The output can be directly connected to analog input channels of PLCs, data loggers, or control systems.
Typical Applications:
- Industrial process monitoring and control
- HVAC and building automation systems
- Laboratory temperature measurement setups
- Environmental monitoring and test benches
- Equipment temperature supervision (motors, bearings, furnaces)
- Integration into automation panels and distributed control systems
Compatibility:
The MDTPT3402 is compatible with standard Pt100 sensors (DIN EN 60751) and can interface with most analog input devices that accept ±5 V signals.
5. Components & Accessories
Included Items:
- MDTPT3402 Pt100 module
- Terminal connectors for sensor and output wiring
- Installation and configuration guide
Optional Accessories:
- DIN rail mounting clips or brackets
- Protective covers or enclosures for harsh environments
- Calibration certificates (optional, depending on supplier)
- Extension cables for Pt100 sensors
- Power supply units (12–24 V DC)
Connectors:
- Screw-type or spring-clamp terminals for secure electrical connections
- Clearly labeled input terminals for Pt100 sensor leads (2 or 3 wires)
- Output terminals for ±5 V analog signal
- Power supply terminals for DC input
6. Installation & Setup
Requirements:
- Power supply: 12–24 V DC regulated source
- Compatible Pt100 sensor (2- or 3-wire type)
- Analog input device capable of reading ±5 V signals
Mounting Options:
- Standard DIN rail mounting (EN 60715) for quick installation in control cabinets
- Optional panel mounting using screws or brackets
Configuration Steps:
1. Mount the module securely on the DIN rail or panel.
2. Connect the Pt100 sensor leads to the designated input terminals (observe wiring diagram for 2- or 3-wire configuration).
3. Connect the analog output terminals to the receiving device (PLC, controller, or data acquisition system).
4. Supply the module with the specified DC voltage.
5. Verify correct operation by comparing output voltage with expected temperature values (10 mV/°C scaling).
Calibration and Adjustment:
The module is factory-calibrated for the specified range (–50°C to +350°C). If required, fine calibration can be performed using reference temperature sources and precision voltmeters.
Safety Considerations:
- Ensure proper grounding and shielding to minimize electrical noise.
- Avoid exposure to moisture or corrosive environments unless housed in a protective enclosure.
- Disconnect power before wiring or maintenance.
7. Performance & Capabilities
Measurement Accuracy:
The MDTPT3402 provides high accuracy and repeatability, with minimal drift over time. The 3-wire configuration compensates for lead resistance, ensuring precise readings even with extended cable lengths.
Speed and Response:
The module offers a fast response time (<1 s typical), suitable for dynamic temperature monitoring applications.
Capacity and Range:
- Temperature range: –50°C to +350°C
- Output range: ±5 V corresponding to full-scale temperature span
- Resolution: Determined by the receiving device’s analog input resolution; typically <0.1°C with 12-bit or higher ADCs.
Efficiency and Stability:
The module’s internal circuitry is optimized for low power consumption and thermal stability, ensuring consistent performance across varying ambient conditions.
Limitations:
- Designed for Pt100 sensors only (not compatible with thermocouples or other RTD types).
- Output limited to ±5 V; ensure receiving device supports bipolar voltage inputs.
- Ambient temperature should remain within specified operating limits for optimal accuracy.
8. Standards & Compliance
The MDTPT3402 complies with relevant international and industrial standards for electronic measurement devices:
- CE Compliance: Conforms to European safety, EMC, and environmental directives.
- RoHS Compliance: Free from hazardous substances in accordance with EU Directive 2011/65/EU.
- EN 60751: Compatibility with standard Pt100 RTD characteristics.
- EN 61010-1: Safety requirements for electrical equipment for measurement, control, and laboratory use.
- EN 61326-1: EMC requirements for electrical equipment for measurement and control.
- ISO 9001: Manufactured under certified quality management systems (depending on manufacturer).
These certifications ensure that the MDTPT3402 meets stringent requirements for safety, reliability, and environmental responsibility.
9. Additional Information
Warranty:
Typically supplied with a 2-year limited warranty covering manufacturing defects and performance issues under normal operating conditions.
Support:
Technical documentation, wiring diagrams, and configuration guides are available from the manufacturer’s website or authorized distributors. Technical support includes assistance with installation, troubleshooting, and integration into control systems.
Maintenance:
The MDTPT3402 requires minimal maintenance. Periodic inspection of wiring connections and verification of calibration accuracy is recommended, especially in critical measurement applications.
Firmware and Updates:
As an analog signal conditioning module, the MDTPT3402 does not require firmware updates. However, updated documentation and calibration procedures may be provided by the manufacturer.
Service and Calibration:
Factory recalibration services are available to maintain measurement accuracy over the product’s lifetime. Calibration intervals depend on application conditions but are typically recommended every 12–24 months.
Environmental Considerations:
The module is designed for indoor use in clean, dry environments. For outdoor or harsh industrial conditions, installation within a protective enclosure is recommended. The device is compliant with environmental protection standards and can be recycled according to WEEE guidelines.
Summary
The MDTPT3402 Pt100 Module is a high-precision, industrial-grade temperature measurement and signal conditioning device engineered for compatibility with Pt100 RTD sensors. Supporting both 2-wire and 3-wire configurations, it provides a linear ±5 V analog output with a scaling factor of 10 mV/°C, covering a wide temperature range from –50°C to +350°C. Its robust design, high accuracy, and ease of integration make it ideal for process control, automation, and laboratory applications. With compliance to CE, RoHS, and relevant IEC standards, the MDTPT3402 ensures reliable performance, safety, and long-term stability in demanding environments.
Product Name: Pt100 Module
Model: MDTPT3402
Series: MDT PT Series
Article Number: MDTPT3402
Manufacturer: MDT (Manufacturer of industrial measurement and automation components)
The MDTPT3402 is a precision temperature measurement module designed for use with Pt100 resistance temperature detectors (RTDs). It supports both 2-wire and 3-wire connection configurations and provides a linear analog output signal proportional to the measured temperature. The module is engineered for industrial and laboratory environments requiring accurate temperature monitoring and signal conditioning over a wide range of operating conditions.
2. Key Features
- Sensor Compatibility: Designed specifically for Pt100 RTD sensors, supporting both 2-wire and 3-wire configurations for flexible installation and compensation of lead resistance.
- Temperature Range: Measures temperatures from –50°C to +350°C, covering a broad spectrum suitable for industrial process control, HVAC systems, and laboratory instrumentation.
- Output Signal: Provides a linear analog output of ±5 V, corresponding to the full temperature range, enabling direct interfacing with analog input modules, data acquisition systems, or control units.
- Signal Scaling: The module features a conversion factor of 10 mV/°C, ensuring straightforward interpretation of the output voltage in relation to the measured temperature.
- High Accuracy and Stability: Optimized for precise temperature measurement with minimal drift, ensuring reliable long-term performance in demanding environments.
- Compact and Robust Design: Built for integration into control panels, DIN rail systems, or custom enclosures, with durable materials suitable for industrial use.
- Ease of Integration: Compatible with standard automation and control systems, simplifying implementation in both new and existing installations.
- Low Noise and High Linearity: Engineered for low signal noise and excellent linearity across the entire measurement range, ensuring accurate and repeatable readings.
3. Technical Specifications
- Model: MDTPT3402
- Sensor Type: Pt100 (Platinum Resistance Temperature Detector)
- Connection Type: 2-wire or 3-wire configuration
- Measurement Range: –50°C to +350°C
- Output Signal: ±5 V analog output
- Signal Scaling: 10 mV/°C
- Output Type: Voltage output, bipolar
- Accuracy: Typically within ±0.1% of full scale (depending on sensor and wiring configuration)
- Linearity: Better than ±0.05% of full scale
- Response Time: Typically <1 second (depending on sensor and system configuration)
- Input Impedance: High impedance input for minimal sensor loading
- Output Impedance: Low impedance output for stable signal transmission
- Power Supply: Typically 12–24 V DC (nominal, depending on system configuration)
- Operating Temperature: –20°C to +70°C (module ambient)
- Storage Temperature: –40°C to +85°C
- Dimensions: Approx. 90 mm (L) × 22.5 mm (W) × 60 mm (H) (typical for DIN rail modules)
- Weight: Approx. 100–150 g (depending on housing and connectors)
- Housing Material: Industrial-grade polycarbonate or ABS enclosure, flame-retardant
- Mounting Type: DIN rail (EN 60715) or panel mount
- Electrical Connections: Screw terminals or plug-in connectors for sensor and output wiring
- Isolation: Galvanic isolation between input, output, and power supply (if applicable)
- Protection Class: IP20 (for standard enclosure)
- Compliance: CE-marked, RoHS-compliant
4. Functionality
The MDTPT3402 functions as a signal conditioning module for Pt100 temperature sensors. It converts the resistance change of the Pt100 element, which varies with temperature, into a proportional voltage output. The module supports both 2-wire and 3-wire sensor connections:
- 2-Wire Configuration: Simplified wiring, suitable for short cable runs where lead resistance is negligible.
- 3-Wire Configuration: Compensates for lead resistance, improving measurement accuracy over longer distances.
The module’s internal circuitry linearizes the Pt100 sensor’s resistance-temperature relationship and scales the output to ±5 V, corresponding to the full temperature range of –50°C to +350°C. The output can be directly connected to analog input channels of PLCs, data loggers, or control systems.
Typical Applications:
- Industrial process monitoring and control
- HVAC and building automation systems
- Laboratory temperature measurement setups
- Environmental monitoring and test benches
- Equipment temperature supervision (motors, bearings, furnaces)
- Integration into automation panels and distributed control systems
Compatibility:
The MDTPT3402 is compatible with standard Pt100 sensors (DIN EN 60751) and can interface with most analog input devices that accept ±5 V signals.
5. Components & Accessories
Included Items:
- MDTPT3402 Pt100 module
- Terminal connectors for sensor and output wiring
- Installation and configuration guide
Optional Accessories:
- DIN rail mounting clips or brackets
- Protective covers or enclosures for harsh environments
- Calibration certificates (optional, depending on supplier)
- Extension cables for Pt100 sensors
- Power supply units (12–24 V DC)
Connectors:
- Screw-type or spring-clamp terminals for secure electrical connections
- Clearly labeled input terminals for Pt100 sensor leads (2 or 3 wires)
- Output terminals for ±5 V analog signal
- Power supply terminals for DC input
6. Installation & Setup
Requirements:
- Power supply: 12–24 V DC regulated source
- Compatible Pt100 sensor (2- or 3-wire type)
- Analog input device capable of reading ±5 V signals
Mounting Options:
- Standard DIN rail mounting (EN 60715) for quick installation in control cabinets
- Optional panel mounting using screws or brackets
Configuration Steps:
1. Mount the module securely on the DIN rail or panel.
2. Connect the Pt100 sensor leads to the designated input terminals (observe wiring diagram for 2- or 3-wire configuration).
3. Connect the analog output terminals to the receiving device (PLC, controller, or data acquisition system).
4. Supply the module with the specified DC voltage.
5. Verify correct operation by comparing output voltage with expected temperature values (10 mV/°C scaling).
Calibration and Adjustment:
The module is factory-calibrated for the specified range (–50°C to +350°C). If required, fine calibration can be performed using reference temperature sources and precision voltmeters.
Safety Considerations:
- Ensure proper grounding and shielding to minimize electrical noise.
- Avoid exposure to moisture or corrosive environments unless housed in a protective enclosure.
- Disconnect power before wiring or maintenance.
7. Performance & Capabilities
Measurement Accuracy:
The MDTPT3402 provides high accuracy and repeatability, with minimal drift over time. The 3-wire configuration compensates for lead resistance, ensuring precise readings even with extended cable lengths.
Speed and Response:
The module offers a fast response time (<1 s typical), suitable for dynamic temperature monitoring applications.
Capacity and Range:
- Temperature range: –50°C to +350°C
- Output range: ±5 V corresponding to full-scale temperature span
- Resolution: Determined by the receiving device’s analog input resolution; typically <0.1°C with 12-bit or higher ADCs.
Efficiency and Stability:
The module’s internal circuitry is optimized for low power consumption and thermal stability, ensuring consistent performance across varying ambient conditions.
Limitations:
- Designed for Pt100 sensors only (not compatible with thermocouples or other RTD types).
- Output limited to ±5 V; ensure receiving device supports bipolar voltage inputs.
- Ambient temperature should remain within specified operating limits for optimal accuracy.
8. Standards & Compliance
The MDTPT3402 complies with relevant international and industrial standards for electronic measurement devices:
- CE Compliance: Conforms to European safety, EMC, and environmental directives.
- RoHS Compliance: Free from hazardous substances in accordance with EU Directive 2011/65/EU.
- EN 60751: Compatibility with standard Pt100 RTD characteristics.
- EN 61010-1: Safety requirements for electrical equipment for measurement, control, and laboratory use.
- EN 61326-1: EMC requirements for electrical equipment for measurement and control.
- ISO 9001: Manufactured under certified quality management systems (depending on manufacturer).
These certifications ensure that the MDTPT3402 meets stringent requirements for safety, reliability, and environmental responsibility.
9. Additional Information
Warranty:
Typically supplied with a 2-year limited warranty covering manufacturing defects and performance issues under normal operating conditions.
Support:
Technical documentation, wiring diagrams, and configuration guides are available from the manufacturer’s website or authorized distributors. Technical support includes assistance with installation, troubleshooting, and integration into control systems.
Maintenance:
The MDTPT3402 requires minimal maintenance. Periodic inspection of wiring connections and verification of calibration accuracy is recommended, especially in critical measurement applications.
Firmware and Updates:
As an analog signal conditioning module, the MDTPT3402 does not require firmware updates. However, updated documentation and calibration procedures may be provided by the manufacturer.
Service and Calibration:
Factory recalibration services are available to maintain measurement accuracy over the product’s lifetime. Calibration intervals depend on application conditions but are typically recommended every 12–24 months.
Environmental Considerations:
The module is designed for indoor use in clean, dry environments. For outdoor or harsh industrial conditions, installation within a protective enclosure is recommended. The device is compliant with environmental protection standards and can be recycled according to WEEE guidelines.
Summary
The MDTPT3402 Pt100 Module is a high-precision, industrial-grade temperature measurement and signal conditioning device engineered for compatibility with Pt100 RTD sensors. Supporting both 2-wire and 3-wire configurations, it provides a linear ±5 V analog output with a scaling factor of 10 mV/°C, covering a wide temperature range from –50°C to +350°C. Its robust design, high accuracy, and ease of integration make it ideal for process control, automation, and laboratory applications. With compliance to CE, RoHS, and relevant IEC standards, the MDTPT3402 ensures reliable performance, safety, and long-term stability in demanding environments.
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