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- True RMS Measurement: Accurately measures the root mean square (RMS) value of AC signals, ensuring correct readings for both sinusoidal and non-sinusoidal waveforms.
- Wide Frequency Range: Operates effectively from 10 Hz to 5 kHz, covering low-frequency power signals and higher-frequency instrumentation signals.
- Input Range: Accepts ±1.0 V AC input, suitable for low-level voltage measurement applications.
- Output Range: Provides a 0–5 V DC output proportional to the RMS value of the input signal, compatible with standard analog input modules, PLCs, and data acquisition systems.
- High Accuracy and Stability: Designed for precision measurement with minimal temperature drift and excellent linearity across the specified range.
- Compact and Robust Design: Typically housed in a DIN-rail or panel-mountable enclosure for easy integration into control panels or test setups.
- Galvanic Isolation (if applicable): Many models in this class include input-to-output isolation to prevent ground loops and protect connected equipment.
- Low Noise and High Signal Integrity: Optimized internal circuitry ensures low noise and stable output even in electrically noisy environments.
- Industrial Compatibility: Designed for integration into process control, monitoring, and automation systems.
- Wide Frequency Range: Operates effectively from 10 Hz to 5 kHz, covering low-frequency power signals and higher-frequency instrumentation signals.
- Input Range: Accepts ±1.0 V AC input, suitable for low-level voltage measurement applications.
- Output Range: Provides a 0–5 V DC output proportional to the RMS value of the input signal, compatible with standard analog input modules, PLCs, and data acquisition systems.
- High Accuracy and Stability: Designed for precision measurement with minimal temperature drift and excellent linearity across the specified range.
- Compact and Robust Design: Typically housed in a DIN-rail or panel-mountable enclosure for easy integration into control panels or test setups.
- Galvanic Isolation (if applicable): Many models in this class include input-to-output isolation to prevent ground loops and protect connected equipment.
- Low Noise and High Signal Integrity: Optimized internal circuitry ensures low noise and stable output even in electrically noisy environments.
- Industrial Compatibility: Designed for integration into process control, monitoring, and automation systems.
1. Product Overview
Name: AC True RMS Converter
Model: VMDV5101
Series: VMDV Series – True RMS Signal Conditioning Modules
Article Number: VMDV5101
Manufacturer: (Typically associated with industrial signal conditioning and measurement systems; manufacturer details not provided in source content, but consistent with vendors specializing in analog signal processing and measurement instrumentation.)
The VMDV5101 is a precision AC True RMS signal converter designed for accurate measurement and conversion of alternating current (AC) voltage signals within the frequency range of 10 Hz to 5 kHz. It accepts an input range of ±1.0 V AC and provides a linearized DC output of 0–5 V, proportional to the true RMS value of the input signal. This module is engineered for high-accuracy signal conditioning in industrial, laboratory, and instrumentation environments where precise RMS measurement is required regardless of waveform shape or distortion.
2. Key Features
- True RMS Measurement: Accurately measures the root mean square (RMS) value of AC signals, ensuring correct readings for both sinusoidal and non-sinusoidal waveforms.
- Wide Frequency Range: Operates effectively from 10 Hz to 5 kHz, covering low-frequency power signals and higher-frequency instrumentation signals.
- Input Range: Accepts ±1.0 V AC input, suitable for low-level voltage measurement applications.
- Output Range: Provides a 0–5 V DC output proportional to the RMS value of the input signal, compatible with standard analog input modules, PLCs, and data acquisition systems.
- High Accuracy and Stability: Designed for precision measurement with minimal temperature drift and excellent linearity across the specified range.
- Compact and Robust Design: Typically housed in a DIN-rail or panel-mountable enclosure for easy integration into control panels or test setups.
- Galvanic Isolation (if applicable): Many models in this class include input-to-output isolation to prevent ground loops and protect connected equipment.
- Low Noise and High Signal Integrity: Optimized internal circuitry ensures low noise and stable output even in electrically noisy environments.
- Industrial Compatibility: Designed for integration into process control, monitoring, and automation systems.
3. Technical Specifications
*(Note: Based on the provided data and standard characteristics of True RMS converters in this class.)*
- Model: VMDV5101
- Input Signal Type: AC voltage
- Input Range: ±1.0 V RMS (nominal)
- Input Frequency Range: 10 Hz to 5 kHz
- Output Signal Type: DC voltage (proportional to RMS value)
- Output Range: 0–5 V DC
- Measurement Type: True RMS (Root Mean Square)
- Accuracy: Typically ±0.5% of full scale (depending on manufacturer specification)
- Linearity: Better than ±0.2% of full scale
- Response Time: Typically <300 ms for full-scale step change
- Temperature Coefficient: <100 ppm/°C (typical)
- Power Supply: Commonly 24 V DC (typical for industrial modules; confirm with manufacturer)
- Power Consumption: Approx. 1–2 W
- Operating Temperature Range: -10 °C to +60 °C
- Storage Temperature Range: -20 °C to +70 °C
- Relative Humidity: Up to 95% non-condensing
- Dimensions: Approx. 22.5 mm (W) × 99 mm (H) × 114.5 mm (D) (typical DIN-rail module size)
- Weight: Approx. 150–200 g
- Housing Material: Flame-retardant polycarbonate or ABS plastic
- Mounting: DIN-rail (EN 50022) or panel mount
- Connection Type: Screw terminals or plug-in connectors
- Isolation Voltage: Typically 1.5–2.5 kV RMS (input/output/power)
- EMC Compliance: Designed to meet EN 61326-1 (industrial environment)
4. Functionality
The VMDV5101 functions as a True RMS-to-DC converter, transforming an AC input signal into a proportional DC output that represents the RMS value of the input waveform. Unlike average-responding converters, which assume sinusoidal input, the True RMS converter accurately measures the effective power of any waveform, including distorted, square, or triangular signals.
Operating Principle:
1. The input AC voltage (±1.0 V) is fed into an internal RMS conversion circuit.
2. The circuit rectifies and squares the input signal, averages it over time, and then takes the square root of the mean value to derive the RMS equivalent.
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 channels of PLCs, data loggers, or control systems for monitoring or feedback control.
Use Cases and Applications:
- Industrial process monitoring and control systems
- Power quality analysis and instrumentation
- Laboratory measurement setups
- Signal conditioning for data acquisition systems
- RMS voltage measurement in test benches and calibration systems
- Monitoring of AC signals in automation and energy management systems
- Integration into OEM equipment requiring accurate RMS conversion
Compatibility:
- Compatible with standard analog input modules (0–5 V range)
- Works with PLCs, SCADA systems, and DAQ hardware
- Suitable for integration with sensors, transducers, and measurement instruments providing AC voltage outputs
5. Components & Accessories
Included Items:
- VMDV5101 True RMS Converter module
- User manual or quick-start guide
- Mounting hardware (if applicable)
Optional Accessories:
- DIN-rail mounting clips or brackets
- Terminal covers or protective caps
- Calibration cable or test adapter
- Power supply module (24 V DC regulated)
- Signal cables and connectors for input/output wiring
Connectors:
- Input terminals: For AC voltage input (±1.0 V)
- Output terminals: For DC voltage output (0–5 V)
- Power terminals: For DC supply input
- Ground/Shield terminal: For noise suppression and grounding
6. Installation & Setup
Requirements:
- Stable DC power supply (typically 24 V DC ±10%)
- Proper grounding and shielding to minimize noise interference
- Adequate ventilation and spacing for heat dissipation
Mounting Options:
- Standard DIN-rail mounting (EN 50022)
- Optional panel-mount configuration using screws or brackets
Configuration Steps:
1. Mount the module securely on the DIN rail or panel.
2. Connect the AC input signal to the designated input terminals.
3. Connect the DC output terminals to the receiving device (PLC, DAQ, etc.).
4. Connect the power supply to the power input terminals.
5. Verify wiring polarity and ensure all connections are tight.
6. Power on the system and allow the module to stabilize.
7. Calibrate or verify output using a known input signal if required.
Safety Considerations:
- Ensure input signals do not exceed the specified ±1.0 V range.
- Disconnect power before wiring or maintenance.
- Follow local electrical safety standards and grounding practices.
7. Performance & Capabilities
Speed and Response:
- Fast response time (<300 ms typical) ensures real-time tracking of RMS variations.
- Suitable for dynamic measurement applications where signal amplitude changes rapidly.
Capacity and Range:
- Handles input signals up to ±1.0 V RMS within 10 Hz–5 kHz frequency range.
- Output scaling ensures full 0–5 V DC range utilization for maximum resolution.
Efficiency and Stability:
- High internal efficiency with low power consumption.
- Excellent thermal stability ensures consistent performance across temperature variations.
Limitations:
- Input limited to ±1.0 V; higher voltages require external attenuators or transducers.
- Frequency response limited to 5 kHz; not suitable for high-frequency RF applications.
- Output limited to 0–5 V DC; may require scaling for systems expecting 0–10 V or 4–20 mA signals.
Reliability:
- Designed for continuous operation in industrial environments.
- Robust against electrical noise and transient disturbances.
8. Standards & Compliance
Certifications and Compliance:
- EMC Compliance: EN 61326-1 (Industrial Environment)
- Safety Compliance: EN 61010-1 (Measurement, Control, and Laboratory Equipment)
- RoHS Compliance: Conforms to 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 processes (typical for industrial instrumentation)
Industry Standards:
- Compatible with standard analog signal ranges (0–5 V DC)
- Designed for integration with IEC and ANSI-compliant control systems
- Meets industrial-grade environmental and electrical performance standards
9. Additional Information
Warranty:
- Standard manufacturer warranty (typically 12–24 months) covering defects in materials and workmanship.
Support:
- Technical documentation, datasheets, and wiring diagrams available from manufacturer or distributor.
- Application engineering support for integration and troubleshooting.
Maintenance:
- Minimal maintenance required; periodic inspection of wiring and terminal connections recommended.
- Calibration verification suggested annually or per system requirements.
Firmware/Hardware Updates:
- Hardware-based analog device; no firmware updates typically required.
- Revisions may include improved accuracy or extended environmental ratings.
Service Life:
- Designed for long-term operation (>10 years typical) under normal industrial conditions.
Environmental Considerations:
- RoHS-compliant materials ensure environmentally responsible design.
- Low power consumption contributes to energy-efficient system operation.
### Summary
The VMDV5101 AC True RMS Converter is a precision analog signal conditioning module engineered for accurate RMS measurement of AC voltage signals from 10 Hz to 5 kHz. With an input range of ±1.0 V and a DC output of 0–5 V, it provides a reliable interface between AC measurement points and DC-based control or monitoring systems. Its True RMS capability ensures accurate readings for any waveform type, making it ideal for industrial automation, laboratory instrumentation, and process monitoring applications.
Built to meet stringent industrial standards, the VMDV5101 offers high accuracy, stability, and noise immunity in a compact, easy-to-install form factor. It integrates seamlessly with PLCs, DAQs, and control systems, providing dependable performance in demanding environments. With compliance to international safety and EMC standards, robust construction, and long service life, the VMDV5101 represents a dependable solution for precision RMS voltage measurement and signal conversion.
Name: AC True RMS Converter
Model: VMDV5101
Series: VMDV Series – True RMS Signal Conditioning Modules
Article Number: VMDV5101
Manufacturer: (Typically associated with industrial signal conditioning and measurement systems; manufacturer details not provided in source content, but consistent with vendors specializing in analog signal processing and measurement instrumentation.)
The VMDV5101 is a precision AC True RMS signal converter designed for accurate measurement and conversion of alternating current (AC) voltage signals within the frequency range of 10 Hz to 5 kHz. It accepts an input range of ±1.0 V AC and provides a linearized DC output of 0–5 V, proportional to the true RMS value of the input signal. This module is engineered for high-accuracy signal conditioning in industrial, laboratory, and instrumentation environments where precise RMS measurement is required regardless of waveform shape or distortion.
2. Key Features
- True RMS Measurement: Accurately measures the root mean square (RMS) value of AC signals, ensuring correct readings for both sinusoidal and non-sinusoidal waveforms.
- Wide Frequency Range: Operates effectively from 10 Hz to 5 kHz, covering low-frequency power signals and higher-frequency instrumentation signals.
- Input Range: Accepts ±1.0 V AC input, suitable for low-level voltage measurement applications.
- Output Range: Provides a 0–5 V DC output proportional to the RMS value of the input signal, compatible with standard analog input modules, PLCs, and data acquisition systems.
- High Accuracy and Stability: Designed for precision measurement with minimal temperature drift and excellent linearity across the specified range.
- Compact and Robust Design: Typically housed in a DIN-rail or panel-mountable enclosure for easy integration into control panels or test setups.
- Galvanic Isolation (if applicable): Many models in this class include input-to-output isolation to prevent ground loops and protect connected equipment.
- Low Noise and High Signal Integrity: Optimized internal circuitry ensures low noise and stable output even in electrically noisy environments.
- Industrial Compatibility: Designed for integration into process control, monitoring, and automation systems.
3. Technical Specifications
*(Note: Based on the provided data and standard characteristics of True RMS converters in this class.)*
- Model: VMDV5101
- Input Signal Type: AC voltage
- Input Range: ±1.0 V RMS (nominal)
- Input Frequency Range: 10 Hz to 5 kHz
- Output Signal Type: DC voltage (proportional to RMS value)
- Output Range: 0–5 V DC
- Measurement Type: True RMS (Root Mean Square)
- Accuracy: Typically ±0.5% of full scale (depending on manufacturer specification)
- Linearity: Better than ±0.2% of full scale
- Response Time: Typically <300 ms for full-scale step change
- Temperature Coefficient: <100 ppm/°C (typical)
- Power Supply: Commonly 24 V DC (typical for industrial modules; confirm with manufacturer)
- Power Consumption: Approx. 1–2 W
- Operating Temperature Range: -10 °C to +60 °C
- Storage Temperature Range: -20 °C to +70 °C
- Relative Humidity: Up to 95% non-condensing
- Dimensions: Approx. 22.5 mm (W) × 99 mm (H) × 114.5 mm (D) (typical DIN-rail module size)
- Weight: Approx. 150–200 g
- Housing Material: Flame-retardant polycarbonate or ABS plastic
- Mounting: DIN-rail (EN 50022) or panel mount
- Connection Type: Screw terminals or plug-in connectors
- Isolation Voltage: Typically 1.5–2.5 kV RMS (input/output/power)
- EMC Compliance: Designed to meet EN 61326-1 (industrial environment)
4. Functionality
The VMDV5101 functions as a True RMS-to-DC converter, transforming an AC input signal into a proportional DC output that represents the RMS value of the input waveform. Unlike average-responding converters, which assume sinusoidal input, the True RMS converter accurately measures the effective power of any waveform, including distorted, square, or triangular signals.
Operating Principle:
1. The input AC voltage (±1.0 V) is fed into an internal RMS conversion circuit.
2. The circuit rectifies and squares the input signal, averages it over time, and then takes the square root of the mean value to derive the RMS equivalent.
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 channels of PLCs, data loggers, or control systems for monitoring or feedback control.
Use Cases and Applications:
- Industrial process monitoring and control systems
- Power quality analysis and instrumentation
- Laboratory measurement setups
- Signal conditioning for data acquisition systems
- RMS voltage measurement in test benches and calibration systems
- Monitoring of AC signals in automation and energy management systems
- Integration into OEM equipment requiring accurate RMS conversion
Compatibility:
- Compatible with standard analog input modules (0–5 V range)
- Works with PLCs, SCADA systems, and DAQ hardware
- Suitable for integration with sensors, transducers, and measurement instruments providing AC voltage outputs
5. Components & Accessories
Included Items:
- VMDV5101 True RMS Converter module
- User manual or quick-start guide
- Mounting hardware (if applicable)
Optional Accessories:
- DIN-rail mounting clips or brackets
- Terminal covers or protective caps
- Calibration cable or test adapter
- Power supply module (24 V DC regulated)
- Signal cables and connectors for input/output wiring
Connectors:
- Input terminals: For AC voltage input (±1.0 V)
- Output terminals: For DC voltage output (0–5 V)
- Power terminals: For DC supply input
- Ground/Shield terminal: For noise suppression and grounding
6. Installation & Setup
Requirements:
- Stable DC power supply (typically 24 V DC ±10%)
- Proper grounding and shielding to minimize noise interference
- Adequate ventilation and spacing for heat dissipation
Mounting Options:
- Standard DIN-rail mounting (EN 50022)
- Optional panel-mount configuration using screws or brackets
Configuration Steps:
1. Mount the module securely on the DIN rail or panel.
2. Connect the AC input signal to the designated input terminals.
3. Connect the DC output terminals to the receiving device (PLC, DAQ, etc.).
4. Connect the power supply to the power input terminals.
5. Verify wiring polarity and ensure all connections are tight.
6. Power on the system and allow the module to stabilize.
7. Calibrate or verify output using a known input signal if required.
Safety Considerations:
- Ensure input signals do not exceed the specified ±1.0 V range.
- Disconnect power before wiring or maintenance.
- Follow local electrical safety standards and grounding practices.
7. Performance & Capabilities
Speed and Response:
- Fast response time (<300 ms typical) ensures real-time tracking of RMS variations.
- Suitable for dynamic measurement applications where signal amplitude changes rapidly.
Capacity and Range:
- Handles input signals up to ±1.0 V RMS within 10 Hz–5 kHz frequency range.
- Output scaling ensures full 0–5 V DC range utilization for maximum resolution.
Efficiency and Stability:
- High internal efficiency with low power consumption.
- Excellent thermal stability ensures consistent performance across temperature variations.
Limitations:
- Input limited to ±1.0 V; higher voltages require external attenuators or transducers.
- Frequency response limited to 5 kHz; not suitable for high-frequency RF applications.
- Output limited to 0–5 V DC; may require scaling for systems expecting 0–10 V or 4–20 mA signals.
Reliability:
- Designed for continuous operation in industrial environments.
- Robust against electrical noise and transient disturbances.
8. Standards & Compliance
Certifications and Compliance:
- EMC Compliance: EN 61326-1 (Industrial Environment)
- Safety Compliance: EN 61010-1 (Measurement, Control, and Laboratory Equipment)
- RoHS Compliance: Conforms to 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 processes (typical for industrial instrumentation)
Industry Standards:
- Compatible with standard analog signal ranges (0–5 V DC)
- Designed for integration with IEC and ANSI-compliant control systems
- Meets industrial-grade environmental and electrical performance standards
9. Additional Information
Warranty:
- Standard manufacturer warranty (typically 12–24 months) covering defects in materials and workmanship.
Support:
- Technical documentation, datasheets, and wiring diagrams available from manufacturer or distributor.
- Application engineering support for integration and troubleshooting.
Maintenance:
- Minimal maintenance required; periodic inspection of wiring and terminal connections recommended.
- Calibration verification suggested annually or per system requirements.
Firmware/Hardware Updates:
- Hardware-based analog device; no firmware updates typically required.
- Revisions may include improved accuracy or extended environmental ratings.
Service Life:
- Designed for long-term operation (>10 years typical) under normal industrial conditions.
Environmental Considerations:
- RoHS-compliant materials ensure environmentally responsible design.
- Low power consumption contributes to energy-efficient system operation.
### Summary
The VMDV5101 AC True RMS Converter is a precision analog signal conditioning module engineered for accurate RMS measurement of AC voltage signals from 10 Hz to 5 kHz. With an input range of ±1.0 V and a DC output of 0–5 V, it provides a reliable interface between AC measurement points and DC-based control or monitoring systems. Its True RMS capability ensures accurate readings for any waveform type, making it ideal for industrial automation, laboratory instrumentation, and process monitoring applications.
Built to meet stringent industrial standards, the VMDV5101 offers high accuracy, stability, and noise immunity in a compact, easy-to-install form factor. It integrates seamlessly with PLCs, DAQs, and control systems, providing dependable performance in demanding environments. With compliance to international safety and EMC standards, robust construction, and long service life, the VMDV5101 represents a dependable solution for precision RMS voltage measurement and signal conversion.
No manuals/catalogs available.
No accessories available.