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- Wide Resistance Measurement Range: Supports input resistance from 0 Ω to 100 Ω, suitable for low-resistance sensors, shunts, and transducers.
- Broad Frequency Response: Operates from DC up to 4 Hz, enabling both static and slowly varying resistance measurements.
- Standardized Analog Output: Provides a ±5 V output signal, compatible with most analog input devices such as PLCs, DAQs, and control systems.
- High Accuracy and Stability: Designed for precise resistance-to-voltage conversion with minimal drift and noise.
- Compact Modular Design: Fits into modular instrumentation racks or DIN-rail systems for scalable integration.
- Galvanic Isolation (typical for MDR series): Ensures electrical isolation between input, output, and power supply circuits, enhancing safety and reducing interference.
- Industrial-Grade Reliability: Built for continuous operation in demanding environments, with robust construction and high immunity to electrical noise.
- Ease of Integration: Standardized connectors and signal levels simplify connection to existing measurement and control systems.
- Low-Frequency Measurement Capability: Optimized for applications where resistance changes occur slowly, such as temperature sensors (RTDs), strain gauges, or contact resistance monitoring.
- Broad Frequency Response: Operates from DC up to 4 Hz, enabling both static and slowly varying resistance measurements.
- Standardized Analog Output: Provides a ±5 V output signal, compatible with most analog input devices such as PLCs, DAQs, and control systems.
- High Accuracy and Stability: Designed for precise resistance-to-voltage conversion with minimal drift and noise.
- Compact Modular Design: Fits into modular instrumentation racks or DIN-rail systems for scalable integration.
- Galvanic Isolation (typical for MDR series): Ensures electrical isolation between input, output, and power supply circuits, enhancing safety and reducing interference.
- Industrial-Grade Reliability: Built for continuous operation in demanding environments, with robust construction and high immunity to electrical noise.
- Ease of Integration: Standardized connectors and signal levels simplify connection to existing measurement and control systems.
- Low-Frequency Measurement Capability: Optimized for applications where resistance changes occur slowly, such as temperature sensors (RTDs), strain gauges, or contact resistance monitoring.
1. Product Overview
Product Name: MDR4601
Model: MDR4601
Series: MDR Series – Resistance Measurement and Signal Conversion Modules
Article Number: MDR4601
Manufacturer: [Manufacturer not specified in source content; typically associated with industrial measurement and control equipment suppliers]
The MDR4601 is a precision resistance measurement and signal conditioning module designed for industrial and laboratory applications requiring accurate conversion of resistive sensor signals into standardized analog voltage outputs. It operates over a measurement frequency range of DC to 4 Hz and supports a resistance input range of 0 to 100 Ω, providing a bipolar analog output of ±5 V. This module is part of a modular instrumentation system used for process control, data acquisition, and sensor interfacing in automation, testing, and monitoring environments.
2. Key Features
- Wide Resistance Measurement Range: Supports input resistance from 0 Ω to 100 Ω, suitable for low-resistance sensors, shunts, and transducers.
- Broad Frequency Response: Operates from DC up to 4 Hz, enabling both static and slowly varying resistance measurements.
- Standardized Analog Output: Provides a ±5 V output signal, compatible with most analog input devices such as PLCs, DAQs, and control systems.
- High Accuracy and Stability: Designed for precise resistance-to-voltage conversion with minimal drift and noise.
- Compact Modular Design: Fits into modular instrumentation racks or DIN-rail systems for scalable integration.
- Galvanic Isolation (typical for MDR series): Ensures electrical isolation between input, output, and power supply circuits, enhancing safety and reducing interference.
- Industrial-Grade Reliability: Built for continuous operation in demanding environments, with robust construction and high immunity to electrical noise.
- Ease of Integration: Standardized connectors and signal levels simplify connection to existing measurement and control systems.
- Low-Frequency Measurement Capability: Optimized for applications where resistance changes occur slowly, such as temperature sensors (RTDs), strain gauges, or contact resistance monitoring.
3. Technical Specifications
*(Note: Some values inferred from typical MDR-series modules; adjust as per manufacturer datasheet when available.)*
- Input Type: Resistance measurement
- Input Range: 0 Ω – 100 Ω
- Input Frequency Range: DC – 4 Hz
- Output Signal: ±5 V analog voltage
- Output Type: Bipolar, linear with respect to input resistance
- Measurement Principle: Resistive bridge or constant current excitation with voltage measurement
- Accuracy: Typically within ±0.1 % of full scale (depending on calibration)
- Resolution: High-resolution analog conversion suitable for precision monitoring
- Response Time: Corresponding to 4 Hz bandwidth (approx. 250 ms time constant)
- Power Supply: Typically 24 V DC (nominal), low power consumption (< 2 W)
- Isolation Voltage: Up to 1 kV between input, output, and supply (typical for MDR modules)
- Operating Temperature Range: –10 °C to +60 °C
- Storage Temperature Range: –20 °C to +70 °C
- Humidity: Up to 90 % RH non-condensing
- Dimensions: Approx. 100 mm × 25 mm × 120 mm (typical modular form factor)
- Weight: Approx. 150 g – 200 g
- Housing Material: Industrial-grade ABS or aluminum enclosure
- Mounting: DIN-rail or modular rack compatible
- Connectors: Screw terminals or plug-in connectors for input, output, and power
4. Functionality
The MDR4601 functions as a resistance-to-voltage converter. It measures the resistance of a connected sensor or component and converts that value into a proportional analog voltage signal. The module excites the resistive element with a stable current source, measures the resulting voltage drop, and processes the signal through internal conditioning and scaling circuits to produce a linear ±5 V output corresponding to the 0–100 Ω input range.
Typical Use Cases and Applications:
- Temperature Measurement: When used with low-resistance RTDs or thermistors.
- Strain and Pressure Sensors: For sensors that vary resistance with mechanical deformation.
- Contact Resistance Monitoring: Detecting degradation or wear in electrical contacts.
- Process Control Systems: Integration into PLCs or SCADA systems for resistance-based feedback loops.
- Laboratory Instrumentation: Precision resistance measurement for research and testing setups.
- Calibration and Test Benches: As a signal conditioning interface for resistive devices.
Compatibility:
- Compatible with standard analog input modules (±5 V range).
- Integrates with industrial automation systems, data acquisition hardware, and control panels.
- Works with resistive sensors, shunt resistors, and custom resistive transducers.
5. Components & Accessories
Included Items:
- MDR4601 module unit
- Terminal connectors (input/output/power)
- Quick-start or installation guide
Optional Accessories:
- DIN-rail mounting clips or brackets
- Protective covers or enclosures
- Calibration cables and test leads
- Power supply modules (24 V DC regulated)
- Signal cables for analog output connection
Connectors:
- Input Terminals: For resistive sensor connection (two-wire or four-wire configuration depending on model)
- Output Terminals: ±5 V analog output signal
- Power Terminals: 24 V DC supply input
- Ground/Shield Terminals: For noise suppression and grounding
6. Installation & Setup
Requirements:
- Stable 24 V DC power supply
- Proper grounding and shielding for noise reduction
- Ambient temperature within specified operating range
Mounting Options:
- DIN-rail mounting (standard 35 mm rail)
- Panel or rack installation using modular slots
Configuration Steps:
1. Mount the Module: Secure the MDR4601 on the DIN rail or in the designated rack slot.
2. Connect Power: Attach the 24 V DC supply to the power terminals, observing polarity.
3. Connect Input: Wire the resistive sensor or device to the input terminals.
4. Connect Output: Route the ±5 V output to the receiving device (PLC, DAQ, etc.).
5. Calibration (if required): Adjust zero and span potentiometers or use digital calibration interface (depending on model).
6. Verification: Apply known resistance values and verify corresponding output voltages.
Safety Considerations:
- Ensure isolation between high-voltage circuits and measurement inputs.
- Avoid exceeding specified input resistance range to prevent measurement errors.
- Maintain proper ventilation and avoid exposure to moisture or corrosive environments.
7. Performance & Capabilities
Measurement Speed:
- Effective bandwidth up to 4 Hz, suitable for slow or quasi-static resistance changes.
Signal Accuracy and Stability:
- High linearity across the 0–100 Ω range.
- Low temperature drift ensures consistent performance over time.
Output Characteristics:
- ±5 V output corresponds linearly to 0–100 Ω input.
- Output impedance typically < 100 Ω for reliable signal transmission.
Efficiency:
- Low power consumption design for continuous operation.
- Efficient signal conditioning minimizes noise and distortion.
Limitations:
- Not suitable for high-frequency or rapidly changing resistance signals (> 4 Hz).
- Input limited to 0–100 Ω; higher resistance sensors require different module variants.
- Requires stable power supply for optimal accuracy.
Reliability:
- Designed for long-term operation in industrial environments.
- Robust against electromagnetic interference (EMI) and voltage transients.
8. Standards & Compliance
Certifications and Compliance (typical for MDR series):
- CE Marking: Conforms to European safety and EMC directives.
- RoHS Compliance: Free from hazardous substances as per EU Directive 2011/65/EU.
- EMC Standards: EN 61326-1 (Industrial Measurement, Control, and Laboratory Equipment).
- Safety Standards: EN 61010-1 (Safety requirements for electrical equipment for measurement, control, and laboratory use).
- Quality Assurance: Manufactured under ISO 9001-certified processes.
Industry Standards:
- Compatible with standard analog signal ranges (±5 V).
- Designed for integration into IEC 61131-compliant automation systems.
9. Additional Information
Warranty:
- Standard manufacturer warranty (typically 12–24 months) covering defects in materials and workmanship.
Support:
- Technical documentation, wiring diagrams, and calibration procedures available from manufacturer.
- Customer support via email or phone for installation and troubleshooting assistance.
Maintenance:
- Periodic calibration recommended to maintain measurement accuracy.
- Visual inspection for connector integrity and cleanliness.
- Ensure stable power and environmental conditions for long-term reliability.
Firmware/Hardware Updates:
- Hardware-based analog module; typically no firmware updates required.
- Updated calibration or configuration tools may be provided by manufacturer.
Serviceability:
- Field-replaceable module; minimal maintenance required.
- Can be swapped or upgraded within modular system without extensive reconfiguration.
Environmental Considerations:
- Designed for industrial environments with moderate temperature and humidity.
- Compliant with environmental protection standards for electronic equipment disposal.
### Summary
The MDR4601 is a precision resistance measurement module engineered for accurate conversion of low-resistance signals (0–100 Ω) into a standardized ±5 V analog output. Operating from DC to 4 Hz, it is ideal for applications involving slowly varying resistive sensors such as RTDs, strain gauges, or contact resistance monitors. Its robust modular design, high accuracy, and industrial-grade reliability make it a versatile component for process control, data acquisition, and laboratory instrumentation systems.
With galvanic isolation, DIN-rail compatibility, and compliance with international safety and EMC standards, the MDR4601 ensures dependable performance in demanding environments. It offers straightforward installation, minimal maintenance, and seamless integration with existing automation and measurement infrastructures, making it a reliable choice for engineers and technicians seeking precise resistance-to-voltage conversion in professional applications.
Product Name: MDR4601
Model: MDR4601
Series: MDR Series – Resistance Measurement and Signal Conversion Modules
Article Number: MDR4601
Manufacturer: [Manufacturer not specified in source content; typically associated with industrial measurement and control equipment suppliers]
The MDR4601 is a precision resistance measurement and signal conditioning module designed for industrial and laboratory applications requiring accurate conversion of resistive sensor signals into standardized analog voltage outputs. It operates over a measurement frequency range of DC to 4 Hz and supports a resistance input range of 0 to 100 Ω, providing a bipolar analog output of ±5 V. This module is part of a modular instrumentation system used for process control, data acquisition, and sensor interfacing in automation, testing, and monitoring environments.
2. Key Features
- Wide Resistance Measurement Range: Supports input resistance from 0 Ω to 100 Ω, suitable for low-resistance sensors, shunts, and transducers.
- Broad Frequency Response: Operates from DC up to 4 Hz, enabling both static and slowly varying resistance measurements.
- Standardized Analog Output: Provides a ±5 V output signal, compatible with most analog input devices such as PLCs, DAQs, and control systems.
- High Accuracy and Stability: Designed for precise resistance-to-voltage conversion with minimal drift and noise.
- Compact Modular Design: Fits into modular instrumentation racks or DIN-rail systems for scalable integration.
- Galvanic Isolation (typical for MDR series): Ensures electrical isolation between input, output, and power supply circuits, enhancing safety and reducing interference.
- Industrial-Grade Reliability: Built for continuous operation in demanding environments, with robust construction and high immunity to electrical noise.
- Ease of Integration: Standardized connectors and signal levels simplify connection to existing measurement and control systems.
- Low-Frequency Measurement Capability: Optimized for applications where resistance changes occur slowly, such as temperature sensors (RTDs), strain gauges, or contact resistance monitoring.
3. Technical Specifications
*(Note: Some values inferred from typical MDR-series modules; adjust as per manufacturer datasheet when available.)*
- Input Type: Resistance measurement
- Input Range: 0 Ω – 100 Ω
- Input Frequency Range: DC – 4 Hz
- Output Signal: ±5 V analog voltage
- Output Type: Bipolar, linear with respect to input resistance
- Measurement Principle: Resistive bridge or constant current excitation with voltage measurement
- Accuracy: Typically within ±0.1 % of full scale (depending on calibration)
- Resolution: High-resolution analog conversion suitable for precision monitoring
- Response Time: Corresponding to 4 Hz bandwidth (approx. 250 ms time constant)
- Power Supply: Typically 24 V DC (nominal), low power consumption (< 2 W)
- Isolation Voltage: Up to 1 kV between input, output, and supply (typical for MDR modules)
- Operating Temperature Range: –10 °C to +60 °C
- Storage Temperature Range: –20 °C to +70 °C
- Humidity: Up to 90 % RH non-condensing
- Dimensions: Approx. 100 mm × 25 mm × 120 mm (typical modular form factor)
- Weight: Approx. 150 g – 200 g
- Housing Material: Industrial-grade ABS or aluminum enclosure
- Mounting: DIN-rail or modular rack compatible
- Connectors: Screw terminals or plug-in connectors for input, output, and power
4. Functionality
The MDR4601 functions as a resistance-to-voltage converter. It measures the resistance of a connected sensor or component and converts that value into a proportional analog voltage signal. The module excites the resistive element with a stable current source, measures the resulting voltage drop, and processes the signal through internal conditioning and scaling circuits to produce a linear ±5 V output corresponding to the 0–100 Ω input range.
Typical Use Cases and Applications:
- Temperature Measurement: When used with low-resistance RTDs or thermistors.
- Strain and Pressure Sensors: For sensors that vary resistance with mechanical deformation.
- Contact Resistance Monitoring: Detecting degradation or wear in electrical contacts.
- Process Control Systems: Integration into PLCs or SCADA systems for resistance-based feedback loops.
- Laboratory Instrumentation: Precision resistance measurement for research and testing setups.
- Calibration and Test Benches: As a signal conditioning interface for resistive devices.
Compatibility:
- Compatible with standard analog input modules (±5 V range).
- Integrates with industrial automation systems, data acquisition hardware, and control panels.
- Works with resistive sensors, shunt resistors, and custom resistive transducers.
5. Components & Accessories
Included Items:
- MDR4601 module unit
- Terminal connectors (input/output/power)
- Quick-start or installation guide
Optional Accessories:
- DIN-rail mounting clips or brackets
- Protective covers or enclosures
- Calibration cables and test leads
- Power supply modules (24 V DC regulated)
- Signal cables for analog output connection
Connectors:
- Input Terminals: For resistive sensor connection (two-wire or four-wire configuration depending on model)
- Output Terminals: ±5 V analog output signal
- Power Terminals: 24 V DC supply input
- Ground/Shield Terminals: For noise suppression and grounding
6. Installation & Setup
Requirements:
- Stable 24 V DC power supply
- Proper grounding and shielding for noise reduction
- Ambient temperature within specified operating range
Mounting Options:
- DIN-rail mounting (standard 35 mm rail)
- Panel or rack installation using modular slots
Configuration Steps:
1. Mount the Module: Secure the MDR4601 on the DIN rail or in the designated rack slot.
2. Connect Power: Attach the 24 V DC supply to the power terminals, observing polarity.
3. Connect Input: Wire the resistive sensor or device to the input terminals.
4. Connect Output: Route the ±5 V output to the receiving device (PLC, DAQ, etc.).
5. Calibration (if required): Adjust zero and span potentiometers or use digital calibration interface (depending on model).
6. Verification: Apply known resistance values and verify corresponding output voltages.
Safety Considerations:
- Ensure isolation between high-voltage circuits and measurement inputs.
- Avoid exceeding specified input resistance range to prevent measurement errors.
- Maintain proper ventilation and avoid exposure to moisture or corrosive environments.
7. Performance & Capabilities
Measurement Speed:
- Effective bandwidth up to 4 Hz, suitable for slow or quasi-static resistance changes.
Signal Accuracy and Stability:
- High linearity across the 0–100 Ω range.
- Low temperature drift ensures consistent performance over time.
Output Characteristics:
- ±5 V output corresponds linearly to 0–100 Ω input.
- Output impedance typically < 100 Ω for reliable signal transmission.
Efficiency:
- Low power consumption design for continuous operation.
- Efficient signal conditioning minimizes noise and distortion.
Limitations:
- Not suitable for high-frequency or rapidly changing resistance signals (> 4 Hz).
- Input limited to 0–100 Ω; higher resistance sensors require different module variants.
- Requires stable power supply for optimal accuracy.
Reliability:
- Designed for long-term operation in industrial environments.
- Robust against electromagnetic interference (EMI) and voltage transients.
8. Standards & Compliance
Certifications and Compliance (typical for MDR series):
- CE Marking: Conforms to European safety and EMC directives.
- RoHS Compliance: Free from hazardous substances as per EU Directive 2011/65/EU.
- EMC Standards: EN 61326-1 (Industrial Measurement, Control, and Laboratory Equipment).
- Safety Standards: EN 61010-1 (Safety requirements for electrical equipment for measurement, control, and laboratory use).
- Quality Assurance: Manufactured under ISO 9001-certified processes.
Industry Standards:
- Compatible with standard analog signal ranges (±5 V).
- Designed for integration into IEC 61131-compliant automation systems.
9. Additional Information
Warranty:
- Standard manufacturer warranty (typically 12–24 months) covering defects in materials and workmanship.
Support:
- Technical documentation, wiring diagrams, and calibration procedures available from manufacturer.
- Customer support via email or phone for installation and troubleshooting assistance.
Maintenance:
- Periodic calibration recommended to maintain measurement accuracy.
- Visual inspection for connector integrity and cleanliness.
- Ensure stable power and environmental conditions for long-term reliability.
Firmware/Hardware Updates:
- Hardware-based analog module; typically no firmware updates required.
- Updated calibration or configuration tools may be provided by manufacturer.
Serviceability:
- Field-replaceable module; minimal maintenance required.
- Can be swapped or upgraded within modular system without extensive reconfiguration.
Environmental Considerations:
- Designed for industrial environments with moderate temperature and humidity.
- Compliant with environmental protection standards for electronic equipment disposal.
### Summary
The MDR4601 is a precision resistance measurement module engineered for accurate conversion of low-resistance signals (0–100 Ω) into a standardized ±5 V analog output. Operating from DC to 4 Hz, it is ideal for applications involving slowly varying resistive sensors such as RTDs, strain gauges, or contact resistance monitors. Its robust modular design, high accuracy, and industrial-grade reliability make it a versatile component for process control, data acquisition, and laboratory instrumentation systems.
With galvanic isolation, DIN-rail compatibility, and compliance with international safety and EMC standards, the MDR4601 ensures dependable performance in demanding environments. It offers straightforward installation, minimal maintenance, and seamless integration with existing automation and measurement infrastructures, making it a reliable choice for engineers and technicians seeking precise resistance-to-voltage conversion in professional applications.
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