The Vibro-Meter CA201 is a high-performance sensor used for monitoring rotating machinery and structural vibration. This specific version (144-201-000-222) includes an integrated 3-meter twisted and shielded cable. It delivers a high sensitivity of 100 pC/g, allowing for the detection of very subtle mechanical defects. The sensor utilizes a differential charge output system to minimize noise interference. Furthermore, the CA201 features internal case insulation, which eliminates the need for external electrical insulation at the mounting point. Therefore, the Vibro-Meter CA201 is an ideal solution for critical balance-of-plant monitoring.
Regarding technical precision, the CA201 offers a wide dynamic measuring range from 0.0001 g up to 200 g peak. The sensor maintains excellent linearity, with less than 1% error for most standard vibration levels. Specifically, the frequency response is flat (±5%) from 0.5 Hz to 3000 Hz. This broad range allows you to monitor both low-frequency structural issues and higher-frequency bearing defects. Meanwhile, the hermetically welded austenitic stainless steel housing protects the internal piezoelectric crystals from humidity and corrosive gases. Consequently, the accelerometer provides stable, drift-free data over its entire lifespan.
The Vibro-Meter CA201 operates reliably in temperatures ranging from -54°C to +260°C. It carries CENELEC approval for use in potentially explosive atmospheres (EEx ib IIC T5), making it suitable for oil and gas or chemical processing facilities. The integrated cable is also rated for high-temperature service and features a robust 2-pole twisted and shielded design. Furthermore, the module withstands shock accelerations up to 500 g. Therefore, the hardware functions effectively in high-stress industrial zones where standard sensors might fail.
The Vibro-Meter CA201 is a passive sensor that requires no external input power. It generates a charge output that you should process using a high-quality charge amplifier or signal conditioner. The internal insulation resistance is rated at a minimum of $10^8$ ohms to ensure signal purity at high temperatures. Specifically, the resonant frequency is 11 kHz, which keeps the operating bandwidth well away from internal mechanical interference. These specifications allow the CA201 to serve as a reliable primary sensor for advanced vibration analysis systems.
You should mount the Vibro-Meter CA201 using 4 Allen M6x35 screws with spring lock washers. Apply a tightening torque of 15 Nm to achieve proper mechanical coupling. The 144-201-000-222 model weighs approximately 600 g, which includes the 3-meter BOA-steeltube protected cable. The 2-pole differential system is fully insulated from the casing, reducing the risk of ground loops. Finally, the factory performs a dynamic calibration at 5 g peak and 120 Hz, so you do not need to perform subsequent calibration upon installation.
First, prepare a flat, clean mounting surface on the machine bearing housing. Align the Vibro-Meter CA201 and secure it using the 4 provided M6 screws. Tighten each screw to 15 Nm. Next, route the integral 3-meter cable toward your junction box or signal conditioner, ensuring you avoid tight bends or contact with moving parts. Connect the two poles to your charge amplifier. Furthermore, ensure the cable shield is properly grounded at the monitor side to prevent electromagnetic interference. Finally, verify the signal output in your monitoring software to confirm the baseline vibration level.
1 x Vibro-Meter CA201 Accelerometer (144-201-000-222)
1 x Integrated 3-Meter Shielded Cable
4 x M6x35 Allen Screws & Lock Washers
Shipping Carrier: Fedex, UPS, DHL
Q: Does this accelerometer require a power supply?
No. The Vibro-Meter CA201 is a piezoelectric device that generates its own charge. You must connect it to a charge amplifier to convert the signal.
Q: What is the benefit of the "High Sensitivity" (100 pC/g) rating?
This high sensitivity allows the sensor to detect low-level vibrations (down to 0.0001 g), which is crucial for early fault detection in slow-moving machinery.
Q: Can I use this sensor in a hazardous location?
Yes. This version is CENELEC approved (EEx ib IIC T5) for use in explosive atmospheres when used with appropriate safety barriers.
Q: Is it necessary to electrically insulate the mounting surface?
No. The CA201 features internal case insulation, so you can mount it directly to the machine metal without specialized insulation pads.
Q: What is the maximum temperature for the integrated cable?
Specifically, the cable is rated for continuous operation up to +260°C, matching the high-temperature capability of the sensor head.
| Brand Name | Vibro-Meter (Meggitt) |
| Model No. | Vibro-Meter CA201 (144-201-000-222) |
| Product Type | High-Sensitivity Piezoelectric Accelerometer |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
