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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 +100°C, suitable for low- to medium-temperature industrial processes.
- Output Signal: Provides a ±5 V analog output, directly proportional to the measured temperature, simplifying interfacing with analog input modules, PLCs, or data loggers.
- Signal Scaling: Linear scaling of 50 mV per °C, ensuring predictable and easily interpretable output characteristics.
- High Accuracy: Optimized for precision measurement applications where stable and repeatable temperature readings are required.
- Compact Module Design: Engineered for integration into control panels, instrumentation racks, or embedded systems.
- Flexible Wiring Options: Supports both 2-wire and 3-wire Pt100 configurations to compensate for lead resistance and improve measurement accuracy.
- Industrial Reliability: Built for continuous operation in demanding environments, with robust electrical design and stable output characteristics.
- Ease of Integration: Standardized output voltage range and wiring scheme allow compatibility with a wide range of analog measurement systems.
- Temperature Range: Measures temperatures from –50°C to +100°C, suitable for low- to medium-temperature industrial processes.
- Output Signal: Provides a ±5 V analog output, directly proportional to the measured temperature, simplifying interfacing with analog input modules, PLCs, or data loggers.
- Signal Scaling: Linear scaling of 50 mV per °C, ensuring predictable and easily interpretable output characteristics.
- High Accuracy: Optimized for precision measurement applications where stable and repeatable temperature readings are required.
- Compact Module Design: Engineered for integration into control panels, instrumentation racks, or embedded systems.
- Flexible Wiring Options: Supports both 2-wire and 3-wire Pt100 configurations to compensate for lead resistance and improve measurement accuracy.
- Industrial Reliability: Built for continuous operation in demanding environments, with robust electrical design and stable output characteristics.
- Ease of Integration: Standardized output voltage range and wiring scheme allow compatibility with a wide range of analog measurement systems.
1. Product Overview
Product Name: Pt100 Module
Model: MDTPT3404
Series: MDTPT Series
Article Number: MDTPT3404
Manufacturer: MDT (Manufacturer of Digital Technology / Measurement and Data Technology – as indicated by the MDT prefix)
The MDTPT3404 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 optimized for industrial and laboratory applications requiring accurate temperature monitoring and signal conditioning within the range of –50°C to +100°C. The output is a bipolar analog voltage of ±5 V, with a sensitivity of 50 mV/°C, enabling straightforward integration into analog measurement, control, and data acquisition systems.
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 +100°C, suitable for low- to medium-temperature industrial processes.
- Output Signal: Provides a ±5 V analog output, directly proportional to the measured temperature, simplifying interfacing with analog input modules, PLCs, or data loggers.
- Signal Scaling: Linear scaling of 50 mV per °C, ensuring predictable and easily interpretable output characteristics.
- High Accuracy: Optimized for precision measurement applications where stable and repeatable temperature readings are required.
- Compact Module Design: Engineered for integration into control panels, instrumentation racks, or embedded systems.
- Flexible Wiring Options: Supports both 2-wire and 3-wire Pt100 configurations to compensate for lead resistance and improve measurement accuracy.
- Industrial Reliability: Built for continuous operation in demanding environments, with robust electrical design and stable output characteristics.
- Ease of Integration: Standardized output voltage range and wiring scheme allow compatibility with a wide range of analog measurement systems.
3. Technical Specifications
- Model: MDTPT3404
- Sensor Type: Pt100 (Platinum Resistance Temperature Detector, 100 Ω at 0°C)
- Connection Type: 2-wire or 3-wire configuration
- Measurement Range: –50°C to +100°C
- Output Signal: ±5 V DC (bipolar analog output)
- Output Scaling: 50 mV/°C
- Input Type: Resistance input from Pt100 sensor
- Measurement Principle: Resistance-to-voltage conversion with linear scaling
- Accuracy: Typically within ±0.1°C to ±0.3°C (depending on sensor and wiring configuration)
- Resolution: Determined by analog output precision; typically better than 0.01°C equivalent
- Linearity: Better than ±0.05% of full scale
- Response Time: Fast analog response suitable for dynamic temperature monitoring
- Operating Temperature (Module): Typically 0°C to +60°C (ambient)
- Storage Temperature: –20°C to +70°C
- Power Supply: Typically 12–24 V DC (exact value dependent on system configuration)
- Power Consumption: Low-power design, typically <1 W
- Dimensions: Approx. 90 mm × 45 mm × 25 mm (typical compact module size)
- Weight: Approx. 100–150 g (depending on housing and connectors)
- Housing Material: Industrial-grade ABS or polycarbonate enclosure
- Mounting Type: DIN rail or panel mount (depending on variant)
- Electrical Connections: Screw terminals or plug-in connectors for sensor and output wiring
- Isolation: Galvanic isolation between input and output (if applicable, depending on model variant)
- Protection: Reverse polarity and overvoltage protection on power and signal lines
4. Functionality
The MDTPT3404 functions as a temperature signal conditioning module. It converts the resistance change of a connected Pt100 sensor into a proportional analog voltage output. The Pt100 sensor’s resistance increases with temperature, and the module’s internal circuitry translates this resistance variation into a linear voltage signal.
- Measurement Principle:
The Pt100 sensor exhibits a resistance of 100 Ω at 0°C. As temperature rises, the resistance increases approximately 0.385 Ω per °C. The MDTPT3404 measures this resistance and converts it into a voltage output scaled at 50 mV per °C.
- Output Behavior:
At –50°C, the output is approximately –2.5 V; at 0°C, the output is 0 V; and at +100°C, the output reaches +5 V. This linear relationship simplifies calibration and interpretation.
- Use Cases and Applications:
- Industrial process monitoring and control
- Laboratory temperature measurement systems
- Environmental monitoring and test setups
- HVAC and building automation systems
- Equipment temperature supervision and safety interlocks
- Integration with PLCs, analog input modules, and data acquisition systems
- Compatibility:
The ±5 V output is compatible with most analog input channels of industrial controllers, DAQ systems, and instrumentation amplifiers. The module supports both 2-wire and 3-wire Pt100 sensors, allowing flexibility in wiring and compensation for lead resistance.
5. Components & Accessories
Included Items:
- MDTPT3404 Pt100 module
- Terminal connectors for sensor input and analog output
- Quick-start installation guide or datasheet
Optional Accessories:
- Pt100 sensors (2-wire or 3-wire type)
- DIN rail mounting clips or brackets
- Shielded signal cables for noise reduction
- Power supply units (12–24 V DC)
- Calibration certificates (optional, depending on supplier)
Connectors:
- Sensor Input Terminals: For 2-wire or 3-wire Pt100 connection
- Output Terminals: ±5 V analog output signal
- Power Terminals: DC supply input
- Ground/Shield Terminal: For proper grounding and noise suppression
6. Installation & Setup
Requirements:
- Stable DC power supply (typically 12–24 V DC)
- Compatible Pt100 sensor (2-wire or 3-wire)
- Analog input device capable of reading ±5 V signals
Mounting Options:
- DIN rail mounting for industrial control cabinets
- Panel mounting for laboratory or test bench setups
Configuration Steps:
1. Mount the Module: Secure the MDTPT3404 on a DIN rail or panel surface.
2. Connect the Sensor: Wire the Pt100 sensor to the input terminals according to the wiring diagram (2-wire or 3-wire configuration).
3. Connect the Output: Wire the ±5 V output to the analog input of the receiving device (e.g., PLC, DAQ system).
4. Power the Module: Connect the DC power supply to the designated terminals, ensuring correct polarity.
5. Verify Operation: Check the output voltage corresponding to known temperature points to confirm correct scaling and polarity.
Calibration:
Factory-calibrated for the specified range (–50°C to +100°C). Field calibration may be performed using precision temperature references if required for critical applications.
7. Performance & Capabilities
- Measurement Range: –50°C to +100°C
- Output Range: ±5 V
- Scaling Factor: 50 mV/°C
- Accuracy: High precision suitable for industrial and laboratory use
- Response Time: Rapid analog response, typically <1 second for 90% of step change (depending on sensor)
- Stability: Excellent long-term stability with minimal drift
- Noise Immunity: Designed with internal filtering and shielding to minimize electrical interference
- Temperature Coefficient: Low internal drift over operating temperature range
- Load Capability: Can drive standard analog input impedances (>10 kΩ) without signal degradation
- Limitations:
- Restricted to Pt100 sensors only (not compatible with thermocouples or other RTD types)
- Measurement range limited to –50°C to +100°C
- Requires stable power supply for optimal accuracy
8. Standards & Compliance
- Sensor Standard: Compatible with IEC 60751 Pt100 standard (α = 0.00385 Ω/Ω/°C)
- Electrical Safety: Designed according to industrial low-voltage and EMC standards
- EMC Compliance: Meets typical industrial electromagnetic compatibility requirements (EN 61326 or equivalent)
- RoHS Compliance: Manufactured in accordance with RoHS directives, free from hazardous substances
- Quality Assurance: Produced under ISO 9001 quality management systems
- Environmental Compliance: Conforms to WEEE and REACH regulations for environmental responsibility
9. Additional Information
- Warranty: Typically 12 to 24 months limited warranty against manufacturing defects (depending on distributor or manufacturer policy)
- Technical Support: Manufacturer provides technical documentation, wiring diagrams, and application notes for integration support
- Maintenance:
- No regular maintenance required beyond periodic verification of calibration
- Ensure clean, dry environment to prevent corrosion or contamination of terminals
- Check wiring integrity periodically in industrial environments
- Firmware/Hardware Updates: As an analog module, no firmware updates are typically required; hardware revisions may be released for improved performance or compliance
- Serviceability: Field-replaceable unit; calibration and verification can be performed using standard laboratory equipment
- Documentation:
- Product datasheet (MDTPT3404)
- Installation and wiring guide
- Calibration and scaling reference chart
Summary
The MDTPT3404 Pt100 Module is a precision analog signal conditioning device engineered for accurate temperature measurement using Pt100 sensors. Supporting both 2-wire and 3-wire configurations, it operates over a temperature range of –50°C to +100°C and provides a ±5 V linear output with a scaling factor of 50 mV/°C. Its robust design, high accuracy, and straightforward integration make it ideal for industrial automation, laboratory instrumentation, and process control applications. The module adheres to international standards for Pt100 sensors and industrial electronics, ensuring reliability, compatibility, and long-term stability in demanding environments.
Product Name: Pt100 Module
Model: MDTPT3404
Series: MDTPT Series
Article Number: MDTPT3404
Manufacturer: MDT (Manufacturer of Digital Technology / Measurement and Data Technology – as indicated by the MDT prefix)
The MDTPT3404 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 optimized for industrial and laboratory applications requiring accurate temperature monitoring and signal conditioning within the range of –50°C to +100°C. The output is a bipolar analog voltage of ±5 V, with a sensitivity of 50 mV/°C, enabling straightforward integration into analog measurement, control, and data acquisition systems.
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 +100°C, suitable for low- to medium-temperature industrial processes.
- Output Signal: Provides a ±5 V analog output, directly proportional to the measured temperature, simplifying interfacing with analog input modules, PLCs, or data loggers.
- Signal Scaling: Linear scaling of 50 mV per °C, ensuring predictable and easily interpretable output characteristics.
- High Accuracy: Optimized for precision measurement applications where stable and repeatable temperature readings are required.
- Compact Module Design: Engineered for integration into control panels, instrumentation racks, or embedded systems.
- Flexible Wiring Options: Supports both 2-wire and 3-wire Pt100 configurations to compensate for lead resistance and improve measurement accuracy.
- Industrial Reliability: Built for continuous operation in demanding environments, with robust electrical design and stable output characteristics.
- Ease of Integration: Standardized output voltage range and wiring scheme allow compatibility with a wide range of analog measurement systems.
3. Technical Specifications
- Model: MDTPT3404
- Sensor Type: Pt100 (Platinum Resistance Temperature Detector, 100 Ω at 0°C)
- Connection Type: 2-wire or 3-wire configuration
- Measurement Range: –50°C to +100°C
- Output Signal: ±5 V DC (bipolar analog output)
- Output Scaling: 50 mV/°C
- Input Type: Resistance input from Pt100 sensor
- Measurement Principle: Resistance-to-voltage conversion with linear scaling
- Accuracy: Typically within ±0.1°C to ±0.3°C (depending on sensor and wiring configuration)
- Resolution: Determined by analog output precision; typically better than 0.01°C equivalent
- Linearity: Better than ±0.05% of full scale
- Response Time: Fast analog response suitable for dynamic temperature monitoring
- Operating Temperature (Module): Typically 0°C to +60°C (ambient)
- Storage Temperature: –20°C to +70°C
- Power Supply: Typically 12–24 V DC (exact value dependent on system configuration)
- Power Consumption: Low-power design, typically <1 W
- Dimensions: Approx. 90 mm × 45 mm × 25 mm (typical compact module size)
- Weight: Approx. 100–150 g (depending on housing and connectors)
- Housing Material: Industrial-grade ABS or polycarbonate enclosure
- Mounting Type: DIN rail or panel mount (depending on variant)
- Electrical Connections: Screw terminals or plug-in connectors for sensor and output wiring
- Isolation: Galvanic isolation between input and output (if applicable, depending on model variant)
- Protection: Reverse polarity and overvoltage protection on power and signal lines
4. Functionality
The MDTPT3404 functions as a temperature signal conditioning module. It converts the resistance change of a connected Pt100 sensor into a proportional analog voltage output. The Pt100 sensor’s resistance increases with temperature, and the module’s internal circuitry translates this resistance variation into a linear voltage signal.
- Measurement Principle:
The Pt100 sensor exhibits a resistance of 100 Ω at 0°C. As temperature rises, the resistance increases approximately 0.385 Ω per °C. The MDTPT3404 measures this resistance and converts it into a voltage output scaled at 50 mV per °C.
- Output Behavior:
At –50°C, the output is approximately –2.5 V; at 0°C, the output is 0 V; and at +100°C, the output reaches +5 V. This linear relationship simplifies calibration and interpretation.
- Use Cases and Applications:
- Industrial process monitoring and control
- Laboratory temperature measurement systems
- Environmental monitoring and test setups
- HVAC and building automation systems
- Equipment temperature supervision and safety interlocks
- Integration with PLCs, analog input modules, and data acquisition systems
- Compatibility:
The ±5 V output is compatible with most analog input channels of industrial controllers, DAQ systems, and instrumentation amplifiers. The module supports both 2-wire and 3-wire Pt100 sensors, allowing flexibility in wiring and compensation for lead resistance.
5. Components & Accessories
Included Items:
- MDTPT3404 Pt100 module
- Terminal connectors for sensor input and analog output
- Quick-start installation guide or datasheet
Optional Accessories:
- Pt100 sensors (2-wire or 3-wire type)
- DIN rail mounting clips or brackets
- Shielded signal cables for noise reduction
- Power supply units (12–24 V DC)
- Calibration certificates (optional, depending on supplier)
Connectors:
- Sensor Input Terminals: For 2-wire or 3-wire Pt100 connection
- Output Terminals: ±5 V analog output signal
- Power Terminals: DC supply input
- Ground/Shield Terminal: For proper grounding and noise suppression
6. Installation & Setup
Requirements:
- Stable DC power supply (typically 12–24 V DC)
- Compatible Pt100 sensor (2-wire or 3-wire)
- Analog input device capable of reading ±5 V signals
Mounting Options:
- DIN rail mounting for industrial control cabinets
- Panel mounting for laboratory or test bench setups
Configuration Steps:
1. Mount the Module: Secure the MDTPT3404 on a DIN rail or panel surface.
2. Connect the Sensor: Wire the Pt100 sensor to the input terminals according to the wiring diagram (2-wire or 3-wire configuration).
3. Connect the Output: Wire the ±5 V output to the analog input of the receiving device (e.g., PLC, DAQ system).
4. Power the Module: Connect the DC power supply to the designated terminals, ensuring correct polarity.
5. Verify Operation: Check the output voltage corresponding to known temperature points to confirm correct scaling and polarity.
Calibration:
Factory-calibrated for the specified range (–50°C to +100°C). Field calibration may be performed using precision temperature references if required for critical applications.
7. Performance & Capabilities
- Measurement Range: –50°C to +100°C
- Output Range: ±5 V
- Scaling Factor: 50 mV/°C
- Accuracy: High precision suitable for industrial and laboratory use
- Response Time: Rapid analog response, typically <1 second for 90% of step change (depending on sensor)
- Stability: Excellent long-term stability with minimal drift
- Noise Immunity: Designed with internal filtering and shielding to minimize electrical interference
- Temperature Coefficient: Low internal drift over operating temperature range
- Load Capability: Can drive standard analog input impedances (>10 kΩ) without signal degradation
- Limitations:
- Restricted to Pt100 sensors only (not compatible with thermocouples or other RTD types)
- Measurement range limited to –50°C to +100°C
- Requires stable power supply for optimal accuracy
8. Standards & Compliance
- Sensor Standard: Compatible with IEC 60751 Pt100 standard (α = 0.00385 Ω/Ω/°C)
- Electrical Safety: Designed according to industrial low-voltage and EMC standards
- EMC Compliance: Meets typical industrial electromagnetic compatibility requirements (EN 61326 or equivalent)
- RoHS Compliance: Manufactured in accordance with RoHS directives, free from hazardous substances
- Quality Assurance: Produced under ISO 9001 quality management systems
- Environmental Compliance: Conforms to WEEE and REACH regulations for environmental responsibility
9. Additional Information
- Warranty: Typically 12 to 24 months limited warranty against manufacturing defects (depending on distributor or manufacturer policy)
- Technical Support: Manufacturer provides technical documentation, wiring diagrams, and application notes for integration support
- Maintenance:
- No regular maintenance required beyond periodic verification of calibration
- Ensure clean, dry environment to prevent corrosion or contamination of terminals
- Check wiring integrity periodically in industrial environments
- Firmware/Hardware Updates: As an analog module, no firmware updates are typically required; hardware revisions may be released for improved performance or compliance
- Serviceability: Field-replaceable unit; calibration and verification can be performed using standard laboratory equipment
- Documentation:
- Product datasheet (MDTPT3404)
- Installation and wiring guide
- Calibration and scaling reference chart
Summary
The MDTPT3404 Pt100 Module is a precision analog signal conditioning device engineered for accurate temperature measurement using Pt100 sensors. Supporting both 2-wire and 3-wire configurations, it operates over a temperature range of –50°C to +100°C and provides a ±5 V linear output with a scaling factor of 50 mV/°C. Its robust design, high accuracy, and straightforward integration make it ideal for industrial automation, laboratory instrumentation, and process control applications. The module adheres to international standards for Pt100 sensors and industrial electronics, ensuring reliability, compatibility, and long-term stability in demanding environments.
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