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- Sensor Compatibility: Designed specifically for Pt100 RTD sensors, supporting both 2-wire and 3-wire configurations.
- Temperature Range: Measures temperatures from –50°C to +250°C, covering a broad range suitable for industrial, laboratory, and environmental monitoring applications.
- Output Signal: Provides a ±5 V analog output, proportional to the measured temperature, ensuring easy interfacing with analog input modules, PLCs, and data loggers.
- Signal Scaling: Offers a 20 mV/°C output scaling factor, allowing straightforward interpretation and high-resolution signal processing.
- High Accuracy and Stability: Engineered for precise temperature conversion with minimal drift, ensuring consistent performance over time.
- Compact Modular Design: The MDTPT3403 features a compact form factor suitable for DIN rail or panel mounting, optimizing space in control cabinets.
- Electrical Isolation: Internal design minimizes noise and interference, ensuring stable signal transmission even in electrically noisy environments.
- Industrial-Grade Construction: Built with durable materials and components rated for continuous operation in demanding industrial conditions.
- Ease of Integration: Standardized output and wiring configuration simplify integration into existing measurement and control systems.
- Low Power Consumption: Efficient design reduces energy usage and heat generation, contributing to system reliability.
- Temperature Range: Measures temperatures from –50°C to +250°C, covering a broad range suitable for industrial, laboratory, and environmental monitoring applications.
- Output Signal: Provides a ±5 V analog output, proportional to the measured temperature, ensuring easy interfacing with analog input modules, PLCs, and data loggers.
- Signal Scaling: Offers a 20 mV/°C output scaling factor, allowing straightforward interpretation and high-resolution signal processing.
- High Accuracy and Stability: Engineered for precise temperature conversion with minimal drift, ensuring consistent performance over time.
- Compact Modular Design: The MDTPT3403 features a compact form factor suitable for DIN rail or panel mounting, optimizing space in control cabinets.
- Electrical Isolation: Internal design minimizes noise and interference, ensuring stable signal transmission even in electrically noisy environments.
- Industrial-Grade Construction: Built with durable materials and components rated for continuous operation in demanding industrial conditions.
- Ease of Integration: Standardized output and wiring configuration simplify integration into existing measurement and control systems.
- Low Power Consumption: Efficient design reduces energy usage and heat generation, contributing to system reliability.
1. Product Overview
Product Name: Pt100 Module
Model: MDTPT3403
Series: MDTPT Series
Article Number: MDTPT3403
Manufacturer: MDT (Manufacturer of industrial measurement and control technology components)
The MDTPT3403 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, providing accurate temperature signal conversion across a wide measurement range. The module converts the resistance signal from a Pt100 sensor into a standardized analog voltage output, enabling seamless integration into industrial control systems, data acquisition setups, and process automation environments. Engineered for reliability and precision, the MDTPT3403 offers a linear output characteristic, robust electrical performance, and compatibility with a variety of industrial monitoring and control devices.
2. Key Features
- Sensor Compatibility: Designed specifically for Pt100 RTD sensors, supporting both 2-wire and 3-wire configurations.
- Temperature Range: Measures temperatures from –50°C to +250°C, covering a broad range suitable for industrial, laboratory, and environmental monitoring applications.
- Output Signal: Provides a ±5 V analog output, proportional to the measured temperature, ensuring easy interfacing with analog input modules, PLCs, and data loggers.
- Signal Scaling: Offers a 20 mV/°C output scaling factor, allowing straightforward interpretation and high-resolution signal processing.
- High Accuracy and Stability: Engineered for precise temperature conversion with minimal drift, ensuring consistent performance over time.
- Compact Modular Design: The MDTPT3403 features a compact form factor suitable for DIN rail or panel mounting, optimizing space in control cabinets.
- Electrical Isolation: Internal design minimizes noise and interference, ensuring stable signal transmission even in electrically noisy environments.
- Industrial-Grade Construction: Built with durable materials and components rated for continuous operation in demanding industrial conditions.
- Ease of Integration: Standardized output and wiring configuration simplify integration into existing measurement and control systems.
- Low Power Consumption: Efficient design reduces energy usage and heat generation, contributing to system reliability.
3. Technical Specifications
- Model: MDTPT3403
- Sensor Type: Pt100 (Platinum Resistance Temperature Detector)
- Connection Type: 2-wire or 3-wire configuration
- Measurement Range: –50°C to +250°C
- Output Signal: ±5 V DC (analog voltage output)
- Output Scaling: 20 mV/°C
- Accuracy: Typically within ±0.1% of full scale (depending on calibration and sensor quality)
- Input Resistance: Optimized for Pt100 nominal resistance (100 Ω at 0°C)
- Linearity: High linearity across the entire measurement range
- Response Time: Fast response suitable for dynamic temperature monitoring
- Power Supply: Typically 24 V DC (nominal), with tolerance 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) × 75 mm (H) (typical for MDT modules; actual dimensions may vary slightly)
- Weight: Approx. 100–150 g (depending on housing and terminal configuration)
- Housing Material: Industrial-grade polycarbonate or ABS enclosure, flame-retardant and impact-resistant
- Mounting Type: DIN rail (EN 60715) or panel mount
- Electrical Connections: Screw terminals or plug-in connectors for sensor input, power supply, and output signal
- Isolation Voltage: Typically 500 V DC between input, output, and supply (if applicable)
- Protection Class: IP20 (for indoor installation within control cabinets)
4. Functionality
The MDTPT3403 functions as a signal conditioning module that converts the resistance variation of a Pt100 temperature sensor into a proportional voltage output. The Pt100 sensor changes its resistance with temperature; the module measures this resistance and translates it into a linear voltage signal.
- Working Principle:
The Pt100 sensor’s resistance increases with temperature. The MDTPT3403 measures this resistance using a precision bridge circuit and internal reference. The module then amplifies and linearizes the signal, producing a voltage output that corresponds directly to the measured temperature.
- 2-Wire / 3-Wire Operation:
- In 2-wire mode, the sensor’s resistance and lead resistance are measured together, suitable for short cable runs.
- In 3-wire mode, the module compensates for lead resistance, improving accuracy over longer distances.
- Output Interpretation:
With a scaling of 20 mV/°C, the output voltage corresponds directly to temperature. For example:
- At 0°C → 0 V output
- At +100°C → +2.0 V output
- At –50°C → –1.0 V output
- At +250°C → +5.0 V output
- Applications:
- Industrial process temperature monitoring
- Laboratory instrumentation
- HVAC and environmental control systems
- Machine and equipment temperature supervision
- Data acquisition and test benches
- Integration with PLCs, SCADA systems, and analog controllers
- Compatibility:
The ±5 V output is compatible with most analog input modules, DAQ systems, and control devices that accept bipolar voltage signals.
5. Components & Accessories
Included Items:
- MDTPT3403 Pt100 module
- Terminal connectors for sensor input and output
- Quick-start installation guide or datasheet
Optional Accessories:
- DIN rail mounting clips or brackets
- Protective terminal covers
- Calibration certificate (optional, depending on supplier)
- Pt100 sensors (various probe types available separately)
- Shielded signal cables for noise reduction
Connectors:
- Input Terminals: For Pt100 sensor connection (2 or 3 wires)
- Output Terminals: ±5 V analog output
- Power Supply Terminals: DC input (typically 24 V)
6. Installation & Setup
Requirements:
- Stable DC power supply (nominal 24 V)
- Proper grounding and shielding for noise immunity
- Installation within a protected control cabinet (IP20 environment)
Mounting Options:
- Standard DIN rail mounting (EN 60715) for quick installation
- 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 to the input terminals, ensuring correct wiring for 2-wire or 3-wire configuration.
3. Connect the power supply to the designated terminals, observing polarity.
4. Connect the output terminals to the receiving device (e.g., PLC analog input).
5. Verify calibration and output scaling using a reference temperature source if required.
6. Power on the system and confirm correct operation by monitoring the output voltage corresponding to known temperatures.
Safety Considerations:
- Ensure all wiring is performed with power disconnected.
- Use shielded cables for sensor connections in electrically noisy environments.
- Maintain proper ventilation around the module to prevent overheating.
7. Performance & Capabilities
- Measurement Accuracy: High precision suitable for industrial-grade temperature monitoring.
- Response Time: Rapid signal conversion ensures real-time temperature tracking.
- Signal Stability: Low noise and drift due to high-quality internal components.
- Temperature Compensation: 3-wire configuration compensates for lead resistance, improving accuracy.
- Output Linearity: The ±5 V output is linear across the entire –50°C to +250°C range.
- Load Capability: Designed to drive standard analog inputs with high input impedance (>10 kΩ).
- Efficiency: Low power consumption and minimal self-heating.
- Limitations:
- Not suitable for direct thermocouple input (Pt100 only).
- Requires stable power supply for optimal accuracy.
- Limited to ambient operating conditions within –20°C to +70°C.
Performance Example:
At 25°C ambient, with a Pt100 sensor connected in 3-wire mode, the module provides a stable output of +0.5 V (corresponding to 25°C × 20 mV/°C). The output remains stable within ±1 mV over extended operation, demonstrating excellent thermal and electrical stability.
8. Standards & Compliance
- Electrical Safety: Designed in accordance with IEC/EN 61010-1 (Safety requirements for electrical equipment for measurement, control, and laboratory use).
- EMC Compliance: Meets EN 61326-1 standards for electromagnetic compatibility in industrial environments.
- RoHS Compliance: Conforms to EU Directive 2011/65/EU (Restriction of Hazardous Substances).
- CE Marking: Indicates conformity with European safety and EMC directives.
- Quality Assurance: Manufactured under ISO 9001-certified quality management systems.
- Environmental Standards: Designed for compliance with WEEE (Waste Electrical and Electronic Equipment) directives for responsible disposal.
9. Additional Information
- Warranty: Typically 24 months from the date of purchase, covering manufacturing defects and component failures under normal operating conditions.
- Technical Support: MDT provides technical documentation, wiring diagrams, and application support for integration and troubleshooting.
- Maintenance:
- Periodic inspection of wiring and terminal connections recommended.
- Calibration verification suggested annually or as required by process standards.
- Clean housing with a dry cloth; avoid solvents or moisture ingress.
- Firmware/Hardware Updates: The MDTPT3403 is a hardware-based analog module with no firmware updates required.
- Serviceability: Field-replaceable unit; defective modules can be replaced without recalibration of the entire system.
- Documentation: Comprehensive datasheet, wiring diagram, and installation manual available from the manufacturer’s website or authorized distributors.
- Ordering Information:
- Article Number: MDTPT3403
- Description: Pt100 Module, 2/3-wire, –50°C to +250°C, 20 mV/°C, ±5 V output
- Packaging: Supplied individually or in bulk for OEM applications
Summary
The MDTPT3403 Pt100 Module is a high-precision, industrial-grade temperature signal converter designed for accurate measurement and reliable performance. Supporting both 2-wire and 3-wire Pt100 sensors, it provides a linear ±5 V output proportional to temperature, with a scaling of 20 mV/°C. Its robust design, wide operating range, and compatibility with standard control systems make it ideal for process automation, laboratory instrumentation, and environmental monitoring. Engineered to meet international safety and EMC standards, the MDTPT3403 delivers dependable performance, ease of installation, and long-term stability in demanding industrial environments.
Product Name: Pt100 Module
Model: MDTPT3403
Series: MDTPT Series
Article Number: MDTPT3403
Manufacturer: MDT (Manufacturer of industrial measurement and control technology components)
The MDTPT3403 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, providing accurate temperature signal conversion across a wide measurement range. The module converts the resistance signal from a Pt100 sensor into a standardized analog voltage output, enabling seamless integration into industrial control systems, data acquisition setups, and process automation environments. Engineered for reliability and precision, the MDTPT3403 offers a linear output characteristic, robust electrical performance, and compatibility with a variety of industrial monitoring and control devices.
2. Key Features
- Sensor Compatibility: Designed specifically for Pt100 RTD sensors, supporting both 2-wire and 3-wire configurations.
- Temperature Range: Measures temperatures from –50°C to +250°C, covering a broad range suitable for industrial, laboratory, and environmental monitoring applications.
- Output Signal: Provides a ±5 V analog output, proportional to the measured temperature, ensuring easy interfacing with analog input modules, PLCs, and data loggers.
- Signal Scaling: Offers a 20 mV/°C output scaling factor, allowing straightforward interpretation and high-resolution signal processing.
- High Accuracy and Stability: Engineered for precise temperature conversion with minimal drift, ensuring consistent performance over time.
- Compact Modular Design: The MDTPT3403 features a compact form factor suitable for DIN rail or panel mounting, optimizing space in control cabinets.
- Electrical Isolation: Internal design minimizes noise and interference, ensuring stable signal transmission even in electrically noisy environments.
- Industrial-Grade Construction: Built with durable materials and components rated for continuous operation in demanding industrial conditions.
- Ease of Integration: Standardized output and wiring configuration simplify integration into existing measurement and control systems.
- Low Power Consumption: Efficient design reduces energy usage and heat generation, contributing to system reliability.
3. Technical Specifications
- Model: MDTPT3403
- Sensor Type: Pt100 (Platinum Resistance Temperature Detector)
- Connection Type: 2-wire or 3-wire configuration
- Measurement Range: –50°C to +250°C
- Output Signal: ±5 V DC (analog voltage output)
- Output Scaling: 20 mV/°C
- Accuracy: Typically within ±0.1% of full scale (depending on calibration and sensor quality)
- Input Resistance: Optimized for Pt100 nominal resistance (100 Ω at 0°C)
- Linearity: High linearity across the entire measurement range
- Response Time: Fast response suitable for dynamic temperature monitoring
- Power Supply: Typically 24 V DC (nominal), with tolerance 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) × 75 mm (H) (typical for MDT modules; actual dimensions may vary slightly)
- Weight: Approx. 100–150 g (depending on housing and terminal configuration)
- Housing Material: Industrial-grade polycarbonate or ABS enclosure, flame-retardant and impact-resistant
- Mounting Type: DIN rail (EN 60715) or panel mount
- Electrical Connections: Screw terminals or plug-in connectors for sensor input, power supply, and output signal
- Isolation Voltage: Typically 500 V DC between input, output, and supply (if applicable)
- Protection Class: IP20 (for indoor installation within control cabinets)
4. Functionality
The MDTPT3403 functions as a signal conditioning module that converts the resistance variation of a Pt100 temperature sensor into a proportional voltage output. The Pt100 sensor changes its resistance with temperature; the module measures this resistance and translates it into a linear voltage signal.
- Working Principle:
The Pt100 sensor’s resistance increases with temperature. The MDTPT3403 measures this resistance using a precision bridge circuit and internal reference. The module then amplifies and linearizes the signal, producing a voltage output that corresponds directly to the measured temperature.
- 2-Wire / 3-Wire Operation:
- In 2-wire mode, the sensor’s resistance and lead resistance are measured together, suitable for short cable runs.
- In 3-wire mode, the module compensates for lead resistance, improving accuracy over longer distances.
- Output Interpretation:
With a scaling of 20 mV/°C, the output voltage corresponds directly to temperature. For example:
- At 0°C → 0 V output
- At +100°C → +2.0 V output
- At –50°C → –1.0 V output
- At +250°C → +5.0 V output
- Applications:
- Industrial process temperature monitoring
- Laboratory instrumentation
- HVAC and environmental control systems
- Machine and equipment temperature supervision
- Data acquisition and test benches
- Integration with PLCs, SCADA systems, and analog controllers
- Compatibility:
The ±5 V output is compatible with most analog input modules, DAQ systems, and control devices that accept bipolar voltage signals.
5. Components & Accessories
Included Items:
- MDTPT3403 Pt100 module
- Terminal connectors for sensor input and output
- Quick-start installation guide or datasheet
Optional Accessories:
- DIN rail mounting clips or brackets
- Protective terminal covers
- Calibration certificate (optional, depending on supplier)
- Pt100 sensors (various probe types available separately)
- Shielded signal cables for noise reduction
Connectors:
- Input Terminals: For Pt100 sensor connection (2 or 3 wires)
- Output Terminals: ±5 V analog output
- Power Supply Terminals: DC input (typically 24 V)
6. Installation & Setup
Requirements:
- Stable DC power supply (nominal 24 V)
- Proper grounding and shielding for noise immunity
- Installation within a protected control cabinet (IP20 environment)
Mounting Options:
- Standard DIN rail mounting (EN 60715) for quick installation
- 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 to the input terminals, ensuring correct wiring for 2-wire or 3-wire configuration.
3. Connect the power supply to the designated terminals, observing polarity.
4. Connect the output terminals to the receiving device (e.g., PLC analog input).
5. Verify calibration and output scaling using a reference temperature source if required.
6. Power on the system and confirm correct operation by monitoring the output voltage corresponding to known temperatures.
Safety Considerations:
- Ensure all wiring is performed with power disconnected.
- Use shielded cables for sensor connections in electrically noisy environments.
- Maintain proper ventilation around the module to prevent overheating.
7. Performance & Capabilities
- Measurement Accuracy: High precision suitable for industrial-grade temperature monitoring.
- Response Time: Rapid signal conversion ensures real-time temperature tracking.
- Signal Stability: Low noise and drift due to high-quality internal components.
- Temperature Compensation: 3-wire configuration compensates for lead resistance, improving accuracy.
- Output Linearity: The ±5 V output is linear across the entire –50°C to +250°C range.
- Load Capability: Designed to drive standard analog inputs with high input impedance (>10 kΩ).
- Efficiency: Low power consumption and minimal self-heating.
- Limitations:
- Not suitable for direct thermocouple input (Pt100 only).
- Requires stable power supply for optimal accuracy.
- Limited to ambient operating conditions within –20°C to +70°C.
Performance Example:
At 25°C ambient, with a Pt100 sensor connected in 3-wire mode, the module provides a stable output of +0.5 V (corresponding to 25°C × 20 mV/°C). The output remains stable within ±1 mV over extended operation, demonstrating excellent thermal and electrical stability.
8. Standards & Compliance
- Electrical Safety: Designed in accordance with IEC/EN 61010-1 (Safety requirements for electrical equipment for measurement, control, and laboratory use).
- EMC Compliance: Meets EN 61326-1 standards for electromagnetic compatibility in industrial environments.
- RoHS Compliance: Conforms to EU Directive 2011/65/EU (Restriction of Hazardous Substances).
- CE Marking: Indicates conformity with European safety and EMC directives.
- Quality Assurance: Manufactured under ISO 9001-certified quality management systems.
- Environmental Standards: Designed for compliance with WEEE (Waste Electrical and Electronic Equipment) directives for responsible disposal.
9. Additional Information
- Warranty: Typically 24 months from the date of purchase, covering manufacturing defects and component failures under normal operating conditions.
- Technical Support: MDT provides technical documentation, wiring diagrams, and application support for integration and troubleshooting.
- Maintenance:
- Periodic inspection of wiring and terminal connections recommended.
- Calibration verification suggested annually or as required by process standards.
- Clean housing with a dry cloth; avoid solvents or moisture ingress.
- Firmware/Hardware Updates: The MDTPT3403 is a hardware-based analog module with no firmware updates required.
- Serviceability: Field-replaceable unit; defective modules can be replaced without recalibration of the entire system.
- Documentation: Comprehensive datasheet, wiring diagram, and installation manual available from the manufacturer’s website or authorized distributors.
- Ordering Information:
- Article Number: MDTPT3403
- Description: Pt100 Module, 2/3-wire, –50°C to +250°C, 20 mV/°C, ±5 V output
- Packaging: Supplied individually or in bulk for OEM applications
Summary
The MDTPT3403 Pt100 Module is a high-precision, industrial-grade temperature signal converter designed for accurate measurement and reliable performance. Supporting both 2-wire and 3-wire Pt100 sensors, it provides a linear ±5 V output proportional to temperature, with a scaling of 20 mV/°C. Its robust design, wide operating range, and compatibility with standard control systems make it ideal for process automation, laboratory instrumentation, and environmental monitoring. Engineered to meet international safety and EMC standards, the MDTPT3403 delivers dependable performance, ease of installation, and long-term stability in demanding industrial environments.
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