QuantumX MX430B Full-bridge Amplifier + catmanEasy Software Package

No-nonsense and Precise Strain Gauge Measurements

This is a basic hardware+software package for accurate measurement of strain gauge full-bridge based sensors such as uni- or multiaxial force sensors, torque transducers as well as pressure sensors. The package enables uncomplicated measurement parameterization, individual data visualization, data storage and reporting.

The package includes: QuantumX MX430B strain gauge bridge amplifier, power supply, 4 transducer plugs with TEDS, Ethernet cross­over cable, catman^® Easy software and software maintenance for the first 12 months.

Key hardware features

• Four full‑bridge strain gauge inputs, galvanically isolated
• Accuracy class: 0.01 (100 ppm)
• Scalable ±10 V analog BNC outputs per channel
• Variable bridge excitation voltage:
  • Carrier frequency (CF): 600 Hz sine, bandwidth up to 200 Hz
  • DC excitation for high‑dynamic measurements with bandwidths up to 6 kHz
• Digital low‑pass filters (Bessel, Butterworth, linear phase) for clean, stable signals
• Measuring ranges: 2.5 or 5 mV/V
• Up to 10 V bridge excitation
• Supports 6-wire circuit
• Data rates up to 40 kS/s per channel
• Scaling: 2-point/gain+offset, table, polynomial, multi-polynomial
• Real-time matrix compensation calculation to connect multi-component sensors
• Fast sensor check (shunt)
• TEDS support
• 1 × Ethernet port with PTP support
• 2 × FireWire ports
• Patented background adjustment and calibration (AutoCal)
• Working standard calibration certificate according to ISO10012 stored in the module
• DAkkS certificate (ISO17025) available upon request

Key software features

• Online and offline setup
• Acquisition and recording of data
• Event monitoring
• Online visualizations
• Annotations
• Error detection, logging and diagnosis
• Filtering and phase correction
• General scientific math
• Structural durability math
• Save and export data in various formats

Typical applications

• Force, torque, and pressure measurement using strain gauge full‑bridge sensors
• Aerodynamic testing in wind tunnels for vehicles, aircraft, and sports equipment
• Center of gravity and load distribution analysis, including aerospace structures
• Engine and general test benches requiring accuracy and repeatability
• Machine and sensor calibration during field service due to lightweight portability

Ready for any system architecture

The MX430B integrates effortlessly into the QuantumX modular data acquisition system for scalable distributed or centralized setups with synchronized measurements provided by FireWire and Ethernet PTPv2 support.

To expand the capabilities of the system, the catmanEasy software can be combined with one or both of the following add-on modules:

• EasyMath: Mathematics module and auto sequences
• EasyScript: Free programming under VBA in measurement and analysis mode