Vibro Meter CA134 Piezoelectric Accelerometer 144-134-000-612

144-134-000-612 Vibro Meter CA134 Piezoelectric Accelerometer

The Vibro Meter CA134 delivers exceptional vibration monitoring across extreme temperature environments. This high-temperature accelerometer maintains stability from cryogenic conditions to intense heat. It performs reliably in severe applications like gas turbines and cryogenic systems.

Key Features and Benefits

• The CA134 144-134-000-612 operates across an exceptional temperature range from -54°C to +500°C
• Cryogenic versions handle extreme cold down to -253°C (20K) for specialized applications
• This sensor provides 10 pC/g sensitivity with excellent linearity across its measurement range
• All versions carry Ex certification for safe use in potentially explosive atmospheres
• Its hermetically welded nickel alloy construction ensures long-term reliability in harsh conditions

Detailed Technical Specifications

• Brand: Vibro Meter (Parker Meggitt)
• Model: CA134
• Sensitivity: 10 pC/g ±5% at 120 Hz
• Measurement Range: 0.001 to 500 g peak
• Overload Capacity: Up to 1000 g peak for extreme conditions
• Frequency Response: 0.5 to 3500 Hz ±5%, up to 6000 Hz <10%
• Resonant Frequency: >14 kHz nominal
• Linearity: ±1% over entire dynamic measurement range

Environmental Performance

• Continuous operation from -54°C to +500°C standard version
• Cryogenic version operates from -253°C to +500°C
• Short-term survival from -70°C to +520°C for all versions
• Maximum temperature error: -5% at -253°C, +10% at 500°C
• Withstands shock up to 2000 g peak (half sine, 1 ms)
• Base strain sensitivity: ≤5 × 10−3 g/με for accurate readings

Electrical Characteristics

• No external power required for operation
• Charge output through 2-pin system insulated from case
• Internal insulation resistance: 10^8 Ω at 23°C, 10^5 Ω at 500°C
• Sensor capacitance: 450 pF between pins, 20 pF pin to case
• MI cable capacitance: 220 pF/m between pins, 350 pF/m pin to case
• Requires charge converter (IPC70x signal conditioner)

Physical Construction & Options

• Sensor head weight: 120 grams approximately
• MI cable weight: 140 g/m for integral cable versions
• Special high-temperature nickel alloy and stainless steel case
• Available as sensor-only or with integral mineral-insulated cable
• Hermetically welded construction ensures leaktight integrity

Installation & Mounting

• Mount using three M4 × 16 Allen screws with spring-lock washers
• Apply nominal tightening torque of 4 N•m for proper installation
• Choose sensor-only version for custom cable assemblies
• Select integral MI cable version for ready-to-use applications
• Use high-temperature connectors for extreme environment applications

Connector Options

• Sensor-only version: High-temperature threaded 2-pin connector
• Integral cable version: Vibro-Meter high-temperature connector
• Both options mate with recommended cable assemblies
• Connectors designed for reliable performance in harsh conditions

Packaging & Shipping

• Includes one CA134 piezoelectric accelerometer unit
• All necessary mounting hardware included
• Available in standard or cryogenic versions
• Worldwide shipping via FedEx, UPS, and DHL carriers
• Product arrives ready for immediate installation

Frequently Asked Questions

• What makes the CA134 suitable for cryogenic applications? Special design maintains performance down to -253°C with minimal sensitivity loss
• Can I use custom cables with this sensor? Yes, the sensor-only version accepts different cable assemblies for specific needs
• Is this sensor explosion-proof certified? Yes, all versions carry Ex certification for hazardous areas
• What signal conditioner works best? Use IPC70x series charge converters for optimal performance
• How does it handle thermal cycling? Hermetically welded construction withstands repeated temperature cycles