Description

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Piezoelectric Accelerometer – CA202 (Model 144‑202‑000‑203)
🛠️ Overview

The CA202 – 144‑202‑000‑203 is a heavy‑duty piezoelectric accelerometer designed for vibration monitoring in demanding industrial environments. It’s widely used for machinery condition monitoring, predictive maintenance, and safety assurance in sectors such as power generation, oil & gas, petrochemical, and rotating machinery installations.

🔍 Key Features

Sensing Principle: Piezoelectric (symmetrical shear mode)

Output Type: Charge output (requires external charge amplifier)

Sensitivity: ~100 pC/g ±5% @ 120 Hz

Dynamic Range: 0.01 to 400 g peak

Frequency Response: 0.5 to ~6,000 Hz (±5%)

Linearity: ±1% (lower range), ±2% (higher range)

Transverse Sensitivity: ≤3%

Resonant Frequency: >20 kHz nominal

Operating Temperature: –55 °C to +260 °C

Case Material: Austenitic stainless‑steel, hermetically sealed

Cable: Integral low‑noise cable with flexible stainless‑steel protective hose

Certifications: Versions available with ATEX/IECEx Ex ia / Ex nA for hazardous zones

Installation: Typically mounted with M6 fasteners; recommended torque ~15 N·m

📈 Performance Summary
Parameter Typical Value
Sensitivity ~100 pC/g
Measurement Range 0.01–400 g
Frequency Bandwidth 0.5–6000 Hz
Temperature Range (Sensor) –55 °C to +260 °C
Shock Survival Up to ~1000 g
Output 2‑pole charge output
Case Protection Hermetically welded SS, corrosion/moisture resistant

This sensor is engineered for long‑term vibration surveillance of bearings, shafts, turbines, and other rotating equipment, where high fidelity and robust environmental resistance are critical.

🔌 Typical Use Cases

✔️ Machine health and condition monitoring
✔️ Heavy industrial vibration analysis
✔️ Hazardous area installations with explosion‑proof requirements
✔️ Continuous monitoring of turbines, compressors, pumps, and gearboxes
✔️ Integration with charge amplifiers and vibration monitoring systems