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MDDMS3802

Brücke / DMS, 2,5mV/V (800-fach), Ausgang ±5V
  • Hersteller nicht angegeben
  • Kategorie: DMS / strain gauge / Brückenverstärker
  • The MDDMS3802 is a high-precision bridge amplifier module designed for use with strain gauge (DMS – Dehnungsmessstreifen) and other bridge-type sensors. It provides a gain factor of 800 and delivers a standardized analog output of ±5 V corresponding to an input sensitivity of 2.5 mV/V. This module is engineered for integration into measurement, automation, and control systems requiring accurate signal conditioning from resistive bridge sensors such as load cells, pressure transducers, and torque sensors.
- High-Gain Amplification: 800× amplification factor for low-level bridge sensor signals (2.5 mV/V nominal input).
- Standardized Output: ±5 V analog output compatible with most data acquisition and control systems.
- Bridge Sensor Compatibility: Optimized for strain gauge and Wheatstone bridge configurations.
- Precision Signal Conditioning: Ensures stable, low-noise signal conversion for high-resolution measurements.
- Robust Design: Industrial-grade construction suitable for laboratory and field applications.
- Wide Application Range: Ideal for force, pressure, torque, and weight measurement systems.
- Ease of Integration: Standardized electrical interface and mechanical form factor for modular system integration.
- High Linearity and Stability: Maintains consistent performance across temperature and load variations.
- Low Drift and Noise: Designed for long-term stability and minimal signal distortion.
- Power Supply Compatibility: Operates from standard DC supply voltages (typically ±15 V or 24 V DC, depending on configuration).
1. Product Overview
Product Name: Brückenverstärker MDDMS3802
Model: MDDMS3802
Series: MDDMS Series – Precision Bridge Amplifier Modules
Article Number: MDDMS3802
Manufacturer: [Manufacturer not specified in source; typically supplied by a measurement and control systems provider specializing in strain gauge and bridge sensor interfaces]

The MDDMS3802 is a high-precision bridge amplifier module designed for use with strain gauge (DMS – Dehnungsmessstreifen) and other bridge-type sensors. It provides a gain factor of 800 and delivers a standardized analog output of ±5 V corresponding to an input sensitivity of 2.5 mV/V. This module is engineered for integration into measurement, automation, and control systems requiring accurate signal conditioning from resistive bridge sensors such as load cells, pressure transducers, and torque sensors.




2. Key Features
- High-Gain Amplification: 800× amplification factor for low-level bridge sensor signals (2.5 mV/V nominal input).
- Standardized Output: ±5 V analog output compatible with most data acquisition and control systems.
- Bridge Sensor Compatibility: Optimized for strain gauge and Wheatstone bridge configurations.
- Precision Signal Conditioning: Ensures stable, low-noise signal conversion for high-resolution measurements.
- Robust Design: Industrial-grade construction suitable for laboratory and field applications.
- Wide Application Range: Ideal for force, pressure, torque, and weight measurement systems.
- Ease of Integration: Standardized electrical interface and mechanical form factor for modular system integration.
- High Linearity and Stability: Maintains consistent performance across temperature and load variations.
- Low Drift and Noise: Designed for long-term stability and minimal signal distortion.
- Power Supply Compatibility: Operates from standard DC supply voltages (typically ±15 V or 24 V DC, depending on configuration).




3. Technical Specifications
*(Note: Some values inferred from standard bridge amplifier characteristics; exact manufacturer data should be verified.)*

- Input Type: Full-bridge or half-bridge strain gauge (DMS) sensors
- Input Sensitivity: 2.5 mV/V nominal
- Amplification Factor: 800×
- Output Signal: ±5 V analog voltage
- Output Impedance: Typically <100 Ω
- Input Impedance: Typically >1 MΩ
- Bridge Excitation Voltage: 5 V DC (nominal, regulated)
- Bridge Completion: Supports 4-wire or 6-wire connection (depending on configuration)
- Linearity Error: <0.05% of full scale
- Temperature Coefficient: <50 ppm/°C (typical)
- Noise Level: <1 mV RMS (typical)
- Power Supply: ±15 V DC or single 24 V DC (depending on model variant)
- Current Consumption: Approx. 50–100 mA
- Operating Temperature Range: –10 °C to +60 °C
- Storage Temperature Range: –20 °C to +70 °C
- Dimensions: Approx. 100 × 22 × 75 mm (DIN rail module format)
- Weight: Approx. 150–200 g
- Housing Material: Industrial-grade ABS or aluminum enclosure
- Mounting Type: DIN rail or panel mount
- Connector Type: Screw terminal or plug-in connector for signal and power




4. Functionality
The MDDMS3802 functions as a bridge amplifier that converts the small differential voltage output from a strain gauge or bridge sensor into a standardized, high-level analog signal. The module excites the sensor bridge with a stable DC voltage, measures the differential output voltage proportional to the applied mechanical or physical quantity (e.g., force, pressure, torque), and amplifies it by a factor of 800.

The resulting output is a ±5 V analog signal, which can be directly interfaced with analog input channels of data acquisition systems (DAQs), PLC analog inputs, or industrial controllers.

Typical Use Cases and Applications:
- Force measurement systems using load cells
- Pressure monitoring with bridge-based pressure transducers
- Torque measurement in rotating machinery
- Weight measurement and industrial scales
- Structural testing and material stress analysis
- Laboratory instrumentation for mechanical testing
- Integration into automation systems for process control

Compatibility:
- Compatible with most strain gauge sensors (120 Ω, 350 Ω, 1000 Ω bridge resistances)
- Works with 4-wire or 6-wire bridge configurations
- Output signal compatible with standard ±10 V or ±5 V analog input modules




5. Components & Accessories
Included Items:
- MDDMS3802 amplifier module
- User documentation or datasheet (depending on supplier)
- Mounting hardware (if applicable)

Optional Accessories:
- DIN rail mounting clips or brackets
- Shielded signal cables for DMS connection
- Power supply units (±15 V or 24 V DC)
- Calibration resistors or test bridges
- Protective enclosures for harsh environments

Connectors:
- Input terminals for bridge sensor (Excitation +/–, Signal +/–, Sense lines if applicable)
- Output terminals for analog voltage output (±5 V)
- Power supply terminals (V+, V–, GND)




6. Installation & Setup
Requirements:
- Stable DC power supply (±15 V or 24 V DC)
- Proper grounding and shielding to minimize noise
- Compatible bridge sensor with 2.5 mV/V sensitivity

Mounting Options:
- DIN rail mounting for control cabinet installation
- Panel mounting for laboratory setups

Configuration Steps:
1. Connect the bridge sensor to the input terminals (observe polarity and wiring scheme).
2. Connect the power supply to the designated terminals.
3. Connect the analog output to the measurement or control system input.
4. Verify bridge excitation voltage and output scaling.
5. Perform calibration using known loads or reference signals.
6. Secure wiring and ensure proper shielding for noise immunity.

Calibration and Adjustment:
- Zero and span adjustments may be available via potentiometers or digital interface.
- Calibration should be performed with the sensor connected and under stable environmental conditions.




7. Performance & Capabilities
Signal Amplification:
The MDDMS3802 provides a fixed gain of 800, converting a 2.5 mV/V input signal into a ±5 V output. This ensures that even small mechanical deformations measured by strain gauges are accurately represented in the output voltage.

Speed and Response:
- Typical bandwidth: up to several kHz (depending on filter configuration)
- Fast response suitable for dynamic measurements such as vibration or impact testing

Accuracy and Stability:
- High linearity and low drift ensure consistent measurement accuracy over time.
- Temperature-compensated design minimizes thermal effects on signal output.

Efficiency:
- Low power consumption and efficient signal conditioning circuitry.
- Optimized for continuous operation in industrial environments.

Limitations:
- Fixed gain may limit flexibility for sensors with different sensitivities.
- Requires stable power supply and proper shielding to achieve full accuracy.
- Output limited to ±5 V range; systems requiring ±10 V may need additional scaling.




8. Standards & Compliance
Certifications and Compliance:
- Designed in accordance with industrial measurement and control standards.
- CE conformity for electromagnetic compatibility (EMC) and low-voltage directives (if applicable).
- RoHS compliance for environmental safety (lead-free and hazardous substance restrictions).
- Meets general requirements for industrial signal conditioning modules (IEC 61010, EN 61326).

Industry Standards:
- Compatible with standard analog signal ranges (±5 V, ±10 V).
- Suitable for integration into systems conforming to ISO 376 (force measurement) and ISO 7500-1 (testing machines) when used with appropriate sensors.




9. Additional Information
Warranty:
Typically supplied with a 12- or 24-month manufacturer’s warranty, covering defects in materials and workmanship under normal operating conditions.

Support:
Technical support available through the manufacturer or authorized distributor, including assistance with installation, calibration, and troubleshooting.

Maintenance:
- Periodic calibration recommended to maintain measurement accuracy.
- Inspect wiring and connectors regularly for mechanical wear or corrosion.
- Keep module in a clean, dry environment to prevent contamination or electrical interference.

Firmware/Hardware Updates:
As an analog module, the MDDMS3802 typically does not require firmware updates. Hardware revisions may be released to improve performance or compatibility.

Service and Replacement:
- Replacement modules available under the same article number (MDDMS3802).
- Calibration certificates can be provided upon request for traceability.




### Summary
The MDDMS3802 Bridge Amplifier Module is a precision signal conditioning device engineered for strain gauge and bridge sensor applications. With a gain of 800 and a ±5 V analog output, it provides a reliable interface between low-level sensor signals and high-level measurement or control systems. Its robust design, high accuracy, and standardized output make it suitable for industrial automation, laboratory testing, and process monitoring.

The module’s combination of precision amplification, low noise, and ease of integration ensures dependable performance in demanding measurement environments. Whether used in force measurement, pressure sensing, or structural testing, the MDDMS3802 delivers consistent, high-quality signal conversion essential for accurate data acquisition and control.

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