CSI AC115-1D Triaxial Accelerometer High Quality

Overview

The CSI AC115-1D is a rugged triaxial accelerometer built for harsh industrial conditions. It monitors vibration in three axes—X, Y, and Z—enabling detailed diagnostics of rotating equipment. With a welded 316L stainless-steel body and IP68 rating, it performs reliably in manufacturing, power generation, and offshore environments. Engineers value its fast response, low noise, and broad frequency range for predictive maintenance.

Technical Specifications

General Characteristics

• Model Number: AC115-1D
• Type: Triaxial Accelerometer
• Manufacturer: CSI (CTC)
• Axes Measured: X, Y, Z
• Weight: 200 grams (7.1 oz)
• Housing Material: 316L Stainless Steel
• Mounting Thread: 1/4-28 UNF
• Mounting Torque: 1–2 ft-lbs (1.4–2.7 Nm)
• Protection Rating: IP68, submersible up to 60 m (200 ft)
• Operating Temperature: −50°C to +121°C (−58°F to +250°F)
• Sealing: Welded, Hermetic
• SIL Rating: SIL 2

Performance Parameters

• Sensitivity: 100 mV/g (±15%)
• Dynamic Range: ±50 g (peak)
• Frequency Response (±3 dB): 1 Hz to 6500 Hz (60 to 390,000 CPM)
• Resonant Frequency: 23,000 Hz (1,380,000 CPM)
• Sensing Element: PZT Ceramic
• Sensing Structure: Shear Mode
• Shock Limit: 5,000 g (peak)

Spectral Noise

• @ 10 Hz: 27 µg/√Hz
• @ 100 Hz: 6.5 µg/√Hz
• @ 1000 Hz: 2.5 µg/√Hz

Electrical Specifications

• Voltage Source (IEPE): 18–30 VDC
• Constant Current Excitation: 2–10 mA
• Bias Output Voltage: 10–14 VDC
• Output Impedance: <100 ohms
• Case Isolation: >10⁸ ohms
• Electrical Settling Time: <2.5 seconds

Connector & Accessories

• Connector Type: 4-pin Mini-MIL
• Compatible Connectors: J4A, J4C, J4N, J4P
• Compatible Cables: CB105, CB117, CB119, CB218