Vibro Meter CA 901 Extreme Environment Accelerometer with Nuclear Qualification

Engineered for Maximum Reliability in Critical Applications

• The CA 901 series represents the pinnacle of extreme environment vibration monitoring technology.
• This accelerometer maintains precise measurements from cryogenic -196°C to extreme +700°C temperatures.
• Vibro Meter designed this sensor for nuclear facilities and explosive atmosphere applications.
• Ordering number 144-901-000-601 includes a 5-meter cable for immediate installation.

Performance Specifications for Demanding Environments

• Manufacturer: Vibro Meter
• Model Series: CA 901 Extreme Temperature Accelerometer
• Frequency Response: 3 Hz to 2,800 Hz ±5% nominal range
• Temperature Endurance: Continuous operation from -54°C to +650°C
• Shock Resistance: Withstands 500 g peak half-sine shock pulses
• Pressure Capability: 140 bar at room temperature conditions
• Radiation Immunity: No performance degradation under gamma flux
• Insulation Resistance: Minimum 10⁹ Ω for superior signal integrity

Advanced Technical Capabilities

• The sensor provides 10 pC/g sensitivity with ±5% tolerance at 120 Hz.
• It achieves better than ±1% linearity across the entire dynamic measurement range.
• Mounted resonant frequency exceeds 17 kHz for broad frequency coverage.
• Transverse sensitivity remains below 5% to ensure accurate axial measurements.
• Pole-to-pole capacitance measures 80 pF plus 200 pF per cable meter.

Environmental & Safety Certifications

• Nuclear qualification meets NRC Guide 1.133 and IEEE 323-1974 standards.
• Explosive atmosphere certification covers Zones 0, 1, and 2 applications.
• Hermetically welded Inconel 600 construction prevents moisture ingress.
• Gamma radiation tolerance reaches 10¹¹ erg/g without performance effects.
• Neutron flux immunity extends to 10¹⁸ n/cm² with no signal degradation.

Installation & Mounting Instructions

• Secure the unit using four M6 Allen screws with 15 Nm specified torque.
• Integral case insulation eliminates need for additional isolation materials.
• The two-pole system provides charge output completely insulated from casing.
• Standard version includes Lemo connectors for reliable electrical connections.
• Standard cable length measures 5 meters for flexible installation positioning.

Shipping & Package Contents

• We ship globally via FedEx, UPS, and DHL express delivery services.
• Each order includes one Vibro Meter CA 901 accelerometer with integral cable.
• All necessary mounting hardware and connectors come included in the package.
• Ordering reference 144-901-000-601 specifies the 5-meter cable version.

Expert Technical Support Questions

• What applications suit this accelerometer best?
  Nuclear power monitoring, turbine supervision, and explosive environment vibration measurement.
• How does extreme temperature affect calibration?
  The sensor maintains calibration stability across the entire -196°C to +700°C range.
• What cable length options are available?
  The standard version offers 5-meter integral cable with Lemo connector interface.
• Can this sensor monitor loose parts in nuclear systems?
  Yes, it specifically serves as a loose parts monitoring accelerometer in nuclear facilities.
• What maintenance does the accelerometer require?
  The hermetically welded design requires no maintenance during its operational lifespan.

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