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- True RMS Measurement: Provides accurate root mean square (RMS) conversion of AC signals, ensuring precise representation of both sinusoidal and non-sinusoidal waveforms.
- Wide Frequency Range: Operates effectively from 10 Hz to 5 kHz, accommodating low-frequency power signals and higher-frequency instrumentation signals.
- Input Range: Accepts ±10.0 V AC input, suitable for a broad range of sensor and transducer outputs.
- Output Range: Provides a 0–5 V DC output signal, compatible with standard analog input channels of PLCs, data acquisition systems, and controllers.
- High Accuracy and Stability: Designed for industrial-grade precision, minimizing measurement errors due to waveform distortion or frequency variation.
- Compact Modular Design: Fits standard DIN-rail or panel-mount configurations, facilitating integration into control cabinets and instrumentation racks.
- Electrical Isolation (typical for series): Ensures galvanic separation between input, output, and power supply circuits, enhancing safety and reducing ground loop interference.
- Low Noise and High Linearity: Maintains signal integrity across the entire input range, ensuring consistent and repeatable output.
- Industrial Reliability: Built for continuous operation in demanding environments, with robust construction and long-term stability.
- Wide Frequency Range: Operates effectively from 10 Hz to 5 kHz, accommodating low-frequency power signals and higher-frequency instrumentation signals.
- Input Range: Accepts ±10.0 V AC input, suitable for a broad range of sensor and transducer outputs.
- Output Range: Provides a 0–5 V DC output signal, compatible with standard analog input channels of PLCs, data acquisition systems, and controllers.
- High Accuracy and Stability: Designed for industrial-grade precision, minimizing measurement errors due to waveform distortion or frequency variation.
- Compact Modular Design: Fits standard DIN-rail or panel-mount configurations, facilitating integration into control cabinets and instrumentation racks.
- Electrical Isolation (typical for series): Ensures galvanic separation between input, output, and power supply circuits, enhancing safety and reducing ground loop interference.
- Low Noise and High Linearity: Maintains signal integrity across the entire input range, ensuring consistent and repeatable output.
- Industrial Reliability: Built for continuous operation in demanding environments, with robust construction and long-term stability.
1. Product Overview
Product Name: AC True RMS Signal Converter
Model: MDV5104
Series: MDV5000 Series Signal Conditioning Modules
Article Number: MDV5104
Manufacturer: [Manufacturer not specified – typically part of the MDV industrial measurement and control product line]
The MDV5104 is a precision AC True RMS signal converter designed for accurate measurement and conversion of alternating current (AC) voltage signals within a wide frequency range. It belongs to the MDV5000 series of signal conditioning modules, which are engineered for industrial automation, instrumentation, and control systems requiring high accuracy and stability in analog signal processing. The MDV5104 specifically converts an AC input signal of ±10.0 V into a proportional DC output signal of 0–5 V, providing a reliable interface between AC measurement sources and DC-based control or monitoring equipment.
2. Key Features
- True RMS Measurement: Provides accurate root mean square (RMS) conversion of AC signals, ensuring precise representation of both sinusoidal and non-sinusoidal waveforms.
- Wide Frequency Range: Operates effectively from 10 Hz to 5 kHz, accommodating low-frequency power signals and higher-frequency instrumentation signals.
- Input Range: Accepts ±10.0 V AC input, suitable for a broad range of sensor and transducer outputs.
- Output Range: Provides a 0–5 V DC output signal, compatible with standard analog input channels of PLCs, data acquisition systems, and controllers.
- High Accuracy and Stability: Designed for industrial-grade precision, minimizing measurement errors due to waveform distortion or frequency variation.
- Compact Modular Design: Fits standard DIN-rail or panel-mount configurations, facilitating integration into control cabinets and instrumentation racks.
- Electrical Isolation (typical for series): Ensures galvanic separation between input, output, and power supply circuits, enhancing safety and reducing ground loop interference.
- Low Noise and High Linearity: Maintains signal integrity across the entire input range, ensuring consistent and repeatable output.
- Industrial Reliability: Built for continuous operation in demanding environments, with robust construction and long-term stability.
3. Technical Specifications
*(Note: Some specifications are inferred from standard MDV5000 series characteristics where not explicitly stated.)*
- Input Signal Type: AC voltage
- Input Range: ±10.0 V RMS
- Frequency Range: 10 Hz to 5 kHz
- Output Signal: 0–5 V DC (proportional to RMS input)
- Measurement Type: True RMS conversion
- Accuracy: Typically ±0.5% of full scale (depending on calibration and frequency)
- Response Time: Typically <300 ms for full-scale change
- Temperature Coefficient: <100 ppm/°C (typical)
- Input Impedance: >100 kΩ
- Output Load: ≥10 kΩ recommended
- Power Supply: 24 V DC nominal (typical for MDV series modules)
- Power Consumption: <2 W
- Isolation Voltage: 1500 V DC (input/output/power isolation, typical)
- Operating Temperature: –10 °C to +60 °C
- Storage Temperature: –20 °C to +70 °C
- Relative Humidity: 0–90% non-condensing
- Dimensions: Approx. 22.5 mm (W) × 100 mm (H) × 115 mm (D) (standard DIN module size)
- Weight: Approx. 150 g
- Housing Material: Flame-retardant polycarbonate or ABS enclosure
- Mounting: DIN-rail (EN 50022) or panel mount
- Connection Type: Screw terminals or plug-in connectors for input, output, and power
4. Functionality
The MDV5104 functions as a precision AC-to-DC converter that measures the true RMS value of an AC voltage input and outputs a proportional DC voltage signal. Unlike average-responding converters, the True RMS measurement capability ensures accurate readings regardless of waveform shape—whether sinusoidal, square, triangular, or distorted.
Operating Principle:
1. The AC input signal (±10 V) is fed into the module’s RMS conversion circuitry.
2. The internal signal conditioning stage rectifies and filters the waveform to compute the RMS value.
3. The resulting RMS value is converted into a proportional DC voltage output (0–5 V).
4. The output can be directly interfaced with analog input modules of PLCs, recorders, or monitoring systems.
Use Cases and Applications:
- Industrial process monitoring and control systems
- Power measurement and energy management applications
- Signal conditioning for AC sensors and transducers
- Laboratory instrumentation and test benches
- Data acquisition systems requiring RMS voltage measurement
- Integration with programmable logic controllers (PLCs) and distributed control systems (DCS)
Compatibility:
The 0–5 V DC output is compatible with most analog input devices, including PLC analog input cards, data loggers, and panel meters. The ±10 V input range allows direct connection to signal sources such as voltage transducers, waveform generators, or secondary outputs of measurement transformers.
5. Components & Accessories
Included Items:
- MDV5104 module (factory-calibrated)
- User manual or quick-start guide
- Mounting clip for DIN-rail installation
Optional Accessories:
- DIN-rail mounting hardware (if not included)
- Terminal covers or protective caps
- Calibration cable or software (for advanced configuration, if supported)
- Power supply unit (24 V DC regulated)
Connectors:
- Input terminals: AC voltage input ±10 V
- Output terminals: DC output 0–5 V
- Power terminals: 24 V DC supply input
- Ground/Shield terminal: For noise suppression and safety grounding
6. Installation & Setup
Requirements:
- 24 V DC power supply with adequate current capacity
- Proper grounding and shielding for noise-sensitive installations
- Ambient temperature within specified operating range
Mounting Options:
- Standard DIN-rail (35 mm) mounting for control cabinet integration
- Optional panel mounting using screws or brackets
Configuration:
- Factory-calibrated for ±10 V input to 0–5 V output
- No user calibration required under normal conditions
- Optional fine-tuning via internal potentiometers (if provided) for zero and span adjustment
- Ensure correct polarity and wiring according to the terminal labeling
Setup Procedure:
1. Mount the module securely on the DIN rail.
2. Connect the AC input signal to the input terminals.
3. Connect the DC output terminals to the receiving device (e.g., PLC analog input).
4. Apply 24 V DC power to the power terminals.
5. Verify output signal corresponds to input RMS voltage using a calibrated multimeter or oscilloscope.
7. Performance & Capabilities
Speed and Response:
The MDV5104 provides a fast and stable response to changes in input signal amplitude, with a typical response time of less than 300 ms. This makes it suitable for dynamic measurement applications where signal levels vary over time.
Capacity and Range:
- Input capacity: ±10 V RMS maximum
- Output capacity: 0–5 V DC full scale
- Frequency response: 10 Hz to 5 kHz, ensuring accurate RMS conversion across a wide spectrum of AC signals
Efficiency and Accuracy:
The True RMS conversion ensures high accuracy even for distorted or non-sinusoidal waveforms. The module maintains linearity across the entire input range, minimizing measurement errors.
Limitations:
- Not intended for DC or very low-frequency (<10 Hz) signals
- Input signals exceeding ±10 V may cause clipping or damage
- Output limited to 0–5 V DC; not suitable for systems requiring ±10 V output without additional scaling
Reliability:
The MDV5104 is designed for continuous industrial operation, with robust electrical isolation and protection against overvoltage, transient spikes, and environmental stress.
8. Standards & Compliance
Certifications and Compliance:
- Electrical Safety: Complies with IEC 61010-1 (Safety requirements for electrical equipment for measurement, control, and laboratory use)
- EMC Compliance: Meets EN 61326-1 (Electromagnetic compatibility for industrial environments)
- RoHS Compliance: Conforms to EU Directive 2011/65/EU (Restriction of Hazardous Substances)
- CE Marking: Indicates conformity with European safety and EMC standards
- Quality Assurance: Manufactured under ISO 9001-certified quality management system
Industry Standards:
- DIN EN 50022 for DIN-rail mounting
- Analog signal standardization (0–5 V DC output compatible with IEC 60381-1)
These compliance standards ensure the MDV5104 can be safely integrated into industrial and laboratory systems worldwide, meeting both performance and regulatory requirements.
9. Additional Information
Warranty:
Typically supplied with a 2-year limited warranty covering manufacturing defects and performance deviations under normal operating conditions.
Support:
Technical documentation, wiring diagrams, and calibration data are available from the manufacturer or authorized distributors. Technical support includes assistance with installation, troubleshooting, and application guidance.
Maintenance:
- Periodic inspection recommended every 12–24 months
- Verify calibration accuracy using a reference signal source
- Clean housing with a dry cloth; avoid solvents or moisture ingress
- Ensure terminal connections remain tight and corrosion-free
Firmware/Hardware Updates:
As an analog signal conditioning device, the MDV5104 typically does not require firmware updates. Hardware revisions may be released to improve performance or compliance; these are identified by revision codes on the product label.
Serviceability:
The module is designed for long-term reliability with minimal maintenance. In case of failure, replacement is generally recommended rather than field repair, due to factory calibration and sealed construction.
Environmental Considerations:
- Designed for industrial environments with moderate vibration and temperature variation
- Dispose of in accordance with local electronic waste regulations
- RoHS-compliant materials minimize environmental impact
Summary
The MDV5104 AC True RMS Signal Converter is a high-precision, industrial-grade module engineered for accurate RMS measurement and conversion of AC voltage signals within the 10 Hz–5 kHz frequency range. With an input range of ±10 V and a proportional 0–5 V DC output, it provides a reliable interface between AC measurement sources and DC-based control systems. Its True RMS capability ensures accurate readings for any waveform type, making it ideal for power monitoring, instrumentation, and automation applications.
Built to meet international safety and EMC standards, the MDV5104 offers robust isolation, high accuracy, and long-term stability in a compact DIN-rail mountable form factor. It is a dependable choice for engineers and system integrators seeking precise, maintenance-free AC signal conversion in demanding industrial environments.
Product Name: AC True RMS Signal Converter
Model: MDV5104
Series: MDV5000 Series Signal Conditioning Modules
Article Number: MDV5104
Manufacturer: [Manufacturer not specified – typically part of the MDV industrial measurement and control product line]
The MDV5104 is a precision AC True RMS signal converter designed for accurate measurement and conversion of alternating current (AC) voltage signals within a wide frequency range. It belongs to the MDV5000 series of signal conditioning modules, which are engineered for industrial automation, instrumentation, and control systems requiring high accuracy and stability in analog signal processing. The MDV5104 specifically converts an AC input signal of ±10.0 V into a proportional DC output signal of 0–5 V, providing a reliable interface between AC measurement sources and DC-based control or monitoring equipment.
2. Key Features
- True RMS Measurement: Provides accurate root mean square (RMS) conversion of AC signals, ensuring precise representation of both sinusoidal and non-sinusoidal waveforms.
- Wide Frequency Range: Operates effectively from 10 Hz to 5 kHz, accommodating low-frequency power signals and higher-frequency instrumentation signals.
- Input Range: Accepts ±10.0 V AC input, suitable for a broad range of sensor and transducer outputs.
- Output Range: Provides a 0–5 V DC output signal, compatible with standard analog input channels of PLCs, data acquisition systems, and controllers.
- High Accuracy and Stability: Designed for industrial-grade precision, minimizing measurement errors due to waveform distortion or frequency variation.
- Compact Modular Design: Fits standard DIN-rail or panel-mount configurations, facilitating integration into control cabinets and instrumentation racks.
- Electrical Isolation (typical for series): Ensures galvanic separation between input, output, and power supply circuits, enhancing safety and reducing ground loop interference.
- Low Noise and High Linearity: Maintains signal integrity across the entire input range, ensuring consistent and repeatable output.
- Industrial Reliability: Built for continuous operation in demanding environments, with robust construction and long-term stability.
3. Technical Specifications
*(Note: Some specifications are inferred from standard MDV5000 series characteristics where not explicitly stated.)*
- Input Signal Type: AC voltage
- Input Range: ±10.0 V RMS
- Frequency Range: 10 Hz to 5 kHz
- Output Signal: 0–5 V DC (proportional to RMS input)
- Measurement Type: True RMS conversion
- Accuracy: Typically ±0.5% of full scale (depending on calibration and frequency)
- Response Time: Typically <300 ms for full-scale change
- Temperature Coefficient: <100 ppm/°C (typical)
- Input Impedance: >100 kΩ
- Output Load: ≥10 kΩ recommended
- Power Supply: 24 V DC nominal (typical for MDV series modules)
- Power Consumption: <2 W
- Isolation Voltage: 1500 V DC (input/output/power isolation, typical)
- Operating Temperature: –10 °C to +60 °C
- Storage Temperature: –20 °C to +70 °C
- Relative Humidity: 0–90% non-condensing
- Dimensions: Approx. 22.5 mm (W) × 100 mm (H) × 115 mm (D) (standard DIN module size)
- Weight: Approx. 150 g
- Housing Material: Flame-retardant polycarbonate or ABS enclosure
- Mounting: DIN-rail (EN 50022) or panel mount
- Connection Type: Screw terminals or plug-in connectors for input, output, and power
4. Functionality
The MDV5104 functions as a precision AC-to-DC converter that measures the true RMS value of an AC voltage input and outputs a proportional DC voltage signal. Unlike average-responding converters, the True RMS measurement capability ensures accurate readings regardless of waveform shape—whether sinusoidal, square, triangular, or distorted.
Operating Principle:
1. The AC input signal (±10 V) is fed into the module’s RMS conversion circuitry.
2. The internal signal conditioning stage rectifies and filters the waveform to compute the RMS value.
3. The resulting RMS value is converted into a proportional DC voltage output (0–5 V).
4. The output can be directly interfaced with analog input modules of PLCs, recorders, or monitoring systems.
Use Cases and Applications:
- Industrial process monitoring and control systems
- Power measurement and energy management applications
- Signal conditioning for AC sensors and transducers
- Laboratory instrumentation and test benches
- Data acquisition systems requiring RMS voltage measurement
- Integration with programmable logic controllers (PLCs) and distributed control systems (DCS)
Compatibility:
The 0–5 V DC output is compatible with most analog input devices, including PLC analog input cards, data loggers, and panel meters. The ±10 V input range allows direct connection to signal sources such as voltage transducers, waveform generators, or secondary outputs of measurement transformers.
5. Components & Accessories
Included Items:
- MDV5104 module (factory-calibrated)
- User manual or quick-start guide
- Mounting clip for DIN-rail installation
Optional Accessories:
- DIN-rail mounting hardware (if not included)
- Terminal covers or protective caps
- Calibration cable or software (for advanced configuration, if supported)
- Power supply unit (24 V DC regulated)
Connectors:
- Input terminals: AC voltage input ±10 V
- Output terminals: DC output 0–5 V
- Power terminals: 24 V DC supply input
- Ground/Shield terminal: For noise suppression and safety grounding
6. Installation & Setup
Requirements:
- 24 V DC power supply with adequate current capacity
- Proper grounding and shielding for noise-sensitive installations
- Ambient temperature within specified operating range
Mounting Options:
- Standard DIN-rail (35 mm) mounting for control cabinet integration
- Optional panel mounting using screws or brackets
Configuration:
- Factory-calibrated for ±10 V input to 0–5 V output
- No user calibration required under normal conditions
- Optional fine-tuning via internal potentiometers (if provided) for zero and span adjustment
- Ensure correct polarity and wiring according to the terminal labeling
Setup Procedure:
1. Mount the module securely on the DIN rail.
2. Connect the AC input signal to the input terminals.
3. Connect the DC output terminals to the receiving device (e.g., PLC analog input).
4. Apply 24 V DC power to the power terminals.
5. Verify output signal corresponds to input RMS voltage using a calibrated multimeter or oscilloscope.
7. Performance & Capabilities
Speed and Response:
The MDV5104 provides a fast and stable response to changes in input signal amplitude, with a typical response time of less than 300 ms. This makes it suitable for dynamic measurement applications where signal levels vary over time.
Capacity and Range:
- Input capacity: ±10 V RMS maximum
- Output capacity: 0–5 V DC full scale
- Frequency response: 10 Hz to 5 kHz, ensuring accurate RMS conversion across a wide spectrum of AC signals
Efficiency and Accuracy:
The True RMS conversion ensures high accuracy even for distorted or non-sinusoidal waveforms. The module maintains linearity across the entire input range, minimizing measurement errors.
Limitations:
- Not intended for DC or very low-frequency (<10 Hz) signals
- Input signals exceeding ±10 V may cause clipping or damage
- Output limited to 0–5 V DC; not suitable for systems requiring ±10 V output without additional scaling
Reliability:
The MDV5104 is designed for continuous industrial operation, with robust electrical isolation and protection against overvoltage, transient spikes, and environmental stress.
8. Standards & Compliance
Certifications and Compliance:
- Electrical Safety: Complies with IEC 61010-1 (Safety requirements for electrical equipment for measurement, control, and laboratory use)
- EMC Compliance: Meets EN 61326-1 (Electromagnetic compatibility for industrial environments)
- RoHS Compliance: Conforms to EU Directive 2011/65/EU (Restriction of Hazardous Substances)
- CE Marking: Indicates conformity with European safety and EMC standards
- Quality Assurance: Manufactured under ISO 9001-certified quality management system
Industry Standards:
- DIN EN 50022 for DIN-rail mounting
- Analog signal standardization (0–5 V DC output compatible with IEC 60381-1)
These compliance standards ensure the MDV5104 can be safely integrated into industrial and laboratory systems worldwide, meeting both performance and regulatory requirements.
9. Additional Information
Warranty:
Typically supplied with a 2-year limited warranty covering manufacturing defects and performance deviations under normal operating conditions.
Support:
Technical documentation, wiring diagrams, and calibration data are available from the manufacturer or authorized distributors. Technical support includes assistance with installation, troubleshooting, and application guidance.
Maintenance:
- Periodic inspection recommended every 12–24 months
- Verify calibration accuracy using a reference signal source
- Clean housing with a dry cloth; avoid solvents or moisture ingress
- Ensure terminal connections remain tight and corrosion-free
Firmware/Hardware Updates:
As an analog signal conditioning device, the MDV5104 typically does not require firmware updates. Hardware revisions may be released to improve performance or compliance; these are identified by revision codes on the product label.
Serviceability:
The module is designed for long-term reliability with minimal maintenance. In case of failure, replacement is generally recommended rather than field repair, due to factory calibration and sealed construction.
Environmental Considerations:
- Designed for industrial environments with moderate vibration and temperature variation
- Dispose of in accordance with local electronic waste regulations
- RoHS-compliant materials minimize environmental impact
Summary
The MDV5104 AC True RMS Signal Converter is a high-precision, industrial-grade module engineered for accurate RMS measurement and conversion of AC voltage signals within the 10 Hz–5 kHz frequency range. With an input range of ±10 V and a proportional 0–5 V DC output, it provides a reliable interface between AC measurement sources and DC-based control systems. Its True RMS capability ensures accurate readings for any waveform type, making it ideal for power monitoring, instrumentation, and automation applications.
Built to meet international safety and EMC standards, the MDV5104 offers robust isolation, high accuracy, and long-term stability in a compact DIN-rail mountable form factor. It is a dependable choice for engineers and system integrators seeking precise, maintenance-free AC signal conversion in demanding industrial environments.
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