Vibro Meter CA 201 Piezoelectric Accelerometer for Industrial Vibration Monitoring

Product Overview

• The CA 201 piezoelectric accelerometer from Vibro Meter provides reliable industrial vibration monitoring.
• This high-sensitivity sensor features a hermetically welded stainless steel case for maximum durability in harsh environments.
• Its differential output and internal case insulation ensure accurate readings with excellent noise immunity.
• The CA 201 series offers a robust solution for demanding applications requiring precise vibration data.

Key Technical Specifications

• Brand: Vibro Meter
• Model: Type CA 201 (144-201-000-222)
• Sensitivity: 100 pC/g ±5% at 120 Hz
• Frequency Response: ±5% from 0.5 Hz to 3000 Hz
• Dynamic Measuring Range: 0.0001 g to 200 g peak
• Linearity: ≤1% between 0.0001 g and 20 g peak
• Mounted Resonant Frequency: 11 kHz nominal
• Operating Temperature: -54°C to +260°C (Zone A)
• Shock Survival: Up to 500 g peak

Environmental Durability

• The sensor withstands extreme temperatures from -54°C to +260°C.
• Its hermetically welded austenitic stainless steel construction resists corrosion and humidity.
• The unit maintains stable performance with a typical temperature error of just 0.1% per °C.
• A CENELEC approved version is available for use in explosive atmospheres.
• The accelerometer has minimal base strain sensitivity of ≤10⁻⁵ g/µε.

Mechanical Design & Installation

• Install the unit using four M6x35 Allen screws with spring lock washers.
• Apply a screw torque of 15 Nm for secure mounting.
• No electrical insulation is required between the mounting surface and sensor.
• The integral 2-pole twisted and shielded cable provides reliable signal transmission.
• Total weight is 600 g including a 3-meter BOA steel tube protected cable.

Signal Characteristics & Performance

• The accelerometer requires no input power and provides a charge output signal.
• It delivers a wide dynamic range from very low 0.0001 g to high 200 g peak levels.
• Transverse sensitivity remains below 5% for accurate axial measurements.
• Internal insulation resistance measures a minimum of 10⁸ ohms.
• Pole-to-pole capacitance is 3300 pF nominal for the 6-meter cable version.

Packaging & Shipping

• Each unit comes with the accelerometer and its integral cable.
• We ship worldwide via FedEx, UPS, and DHL for fast delivery.
• Choose between 3-meter (144-201-000-2) or 6-meter (144-201-000-4) cable versions.
• Explosion-proof version (144-201-000-1) with 3-meter cable is also available.

Frequently Asked Questions

• What signal conditioner works with this accelerometer? Use a charge amplifier compatible with piezoelectric sensors.
• Can I use this sensor in high-temperature environments? Yes, it operates reliably up to 260°C.
• Does the unit require regular calibration? No, factory dynamic calibration at 5 g and 120 Hz remains valid long-term.
• What is the transverse sensitivity? It measures less than 5% of the main axis sensitivity.

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