CSI A0643TX Triaxial Accelerometer with Integral Magnet

Technical Overview

The A0643TX is a professional-grade, triaxial vibration transducer designed by Emerson CSI for high-efficiency industrial diagnostics. Equipped with a powerful integrated 2-pole magnet, this sensor allows for rapid, temporary mounting on curved or flat ferromagnetic surfaces, making it the ideal choice for route-based maintenance and portable analysis. By capturing X, Y, and Z axes simultaneously, the A0643TX significantly reduces data collection time while providing a comprehensive three-dimensional perspective of machinery health.

Constructed with a hermetically welded stainless steel housing and rated to IP68, the A0643TX is engineered to perform in the most demanding environments, from high-moisture cooling towers to dust-heavy milling operations. Its internal piezoelectric sensing elements are isolated from the case to prevent ground loops and electrical interference, ensuring the highest possible signal purity for predictive maintenance programs.

Detailed Technical Specifications

• Measurement Axis: Simultaneous Triaxial (CH/A, CH/B, CH/C).

• Sensitivity: 100 mV/g (±10%) across all three axes.

• Dynamic Range: ±50 g (±490 m/s²) peak.

• Frequency Response (±3 dB):

• CH/A (Z-axis): 0.5 Hz to 10,000 Hz.

• CH/B & CH/C (X/Y-axes): 2 Hz to 3,500 Hz.

• Resonant Frequency: Nominal 23 kHz (mounted).

• Magnetic Attachment: Integrated 2-pole magnet with a minimum pull strength of 200 N (45 lbs).

• Electrical Characteristics:

• Excitation: 18–28 VDC / 2–20 mA constant current.

• Output Bias: 8–12 VDC.

• Impedance: <150 ohms.

• Case Isolation: >10⁸ ohms.

• Environmental Integrity:

• Temperature Range: -54°C to 121°C (-65°F to 250°F).

• Sealing: Welded Hermetic, IP68 waterproof/dustproof rating.

• Shock Limit: 5,000 g peak.

• Physical Profile:

• Material: 316L Stainless Steel.

• Connector: 5-Pin top-exit industrial interface.

• Weight: 175g (Sensor only) / 600g (Total shipping weight).

• Manufacturing Origin: USA.

Application and Field Performance

The A0643TX is optimized for use with Emerson AMS CSI 2130 and 2140 Machinery Health Analyzers. Its primary application involves the monitoring of motors, pumps, fans, and gearboxes where a multi-axis data set is required to differentiate between faults like unbalance, looseness, and misalignment. The high-strength 2-pole magnet ensures that the high-frequency response of the CH/A axis is accurately transmitted from the machine casing to the sensor, providing reliable data up to 10 kHz.