The Vibro-Meter CA901 delivers consistent performance under intense thermal and mechanical stress. This model (144-901-000-601) features an integrated 5-meter cable and a VM Lemo connector. The sensor generates a charge output with a nominal sensitivity of 10 pC/g. It complies with essential nuclear and industrial standards, including NRC guide 1.133 and IEEE 323-1974. Furthermore, the unit includes integral case insulation to eliminate ground loops. Therefore, the Vibro-Meter CA901 is a trusted solution for high-integrity loose part monitoring.
This accelerometer functions in environments ranging from -196°C to +700°C. Vibro-Meter constructs the housing from Inconel 600 and uses hermetic welding to maintain a gas-tight seal. This design resists pressures up to 140 bar at room temperature. Additionally, the CA901 offers superior radiation resistance. It handles gamma flux up to $10^{11}$ erg/g and neutron flux up to $10^{18}$ $n/cm^2$ without loss of accuracy. Consequently, the sensor provides reliable long-term monitoring inside nuclear containment areas and high-pressure steam lines.
The Vibro-Meter CA901 maintains a linear response across a wide frequency range. It offers a flat response (±5%) from 3 Hz to 2800 Hz. The sensor detects vibration levels from 0.001 g up to 200 g peak and handles overload spikes up to 500 g. To ensure signal purity, the internal insulation resistance exceeds $10^9$ Ω. Furthermore, the unit holds ATEX certification for use in explosive atmospheres (Zones 0, 1, and 2). Therefore, the hardware delivers clean vibration data even in hazardous or high-interference industrial zones.
The Vibro-Meter CA901 is a passive piezoelectric device. It requires no external input power and generates a charge signal proportional to acceleration. You must process this signal using a dedicated charge converter or signal conditioner. The sensor head features a high resonance frequency of over 17 kHz. This ensures that internal mechanical resonance does not distort the operating frequency range. These specifications make the CA901 an essential tool for detecting structural defects or loose components in high-speed machinery.
Mount the Vibro-Meter CA901 inside a tube or directly to the machine surface using 4 Allen M6 screws. Apply a fastening torque of 15 Nm to ensure rigid mechanical coupling. This version features a 5-meter integral cable, which provides a convenient reach for connecting to local junction boxes or charge converters. The total weight of approximately 0.88 kg includes the high-temperature cable assembly. Finally, the VM Lemo connector offers a secure, vibration-resistant interface for your monitoring system.
First, inspect the mounting surface for cleanliness and flatness. Secure the Vibro-Meter CA901 using the 4 Allen M6 screws and tighten them to 15 Nm. Next, route the 5-meter cable away from high-voltage equipment to minimize electromagnetic noise. Connect the Lemo connector to your charge converter. Furthermore, secure the cable with clamps to prevent fatigue from mechanical vibration. Finally, perform a baseline test to verify that the sensitivity aligns with the factory 10 pC/g specification.
1 x Vibro-Meter CA901 Accelerometer (144-901-000-601)
1 x Integrated 5-Meter Cable with VM Lemo Connector
1 x Factory Calibration Certificate
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Q: What is the primary use case for the CA901?
The Vibro-Meter CA901 is designed for loose part monitoring and high-temperature vibration sensing in nuclear and power generation facilities.
Q: Does this sensor require an external power supply?
No. It is a passive piezoelectric device. However, you must use a charge converter to translate the pC signal into a usable voltage or current.
Q: Can this sensor handle cryogenic temperatures?
Yes. With an extreme lower limit of -196°C, the CA901 is fully operational in liquid nitrogen environments.
Q: Is the sensor head protected against moisture?
Yes. The Inconel 600 housing is hermetically welded. This provides a moisture-proof and gas-tight seal for high-pressure and high-humidity environments.
Q: What cable length is included with the 144-901-000-601?
This specific ordering number includes a 5-meter integral cable.
| Brand Name | Vibro-Meter (Meggitt) |
| Model No. | CA901 144-901-000-601 |
| Product Type | Piezoelectric Accelerometer |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
