144-201-000-222 | Vibro Meter CA 201 Piezoelectric Accelerometer - Petro Auto Tech

Introduction to the 144-201-000-222 Vibro Meter Accelerometer

When industrial vibration monitoring demands precision and durability, the **144-201-000-222** from Vibro Meter delivers. This CA 201 piezoelectric accelerometer is designed for harsh environments, featuring high sensitivity and a differential output that ensures accurate signal transmission. Its hermetically welded stainless steel construction resists corrosion and humidity, making it a reliable choice for continuous operation in demanding settings.

Key Technical Specifications of the CA 201

The CA 201 accelerometer offers a sensitivity of 100 pC/g ±5% at 120 Hz, providing consistent performance across a dynamic measuring range from 0.0001 g to 200 g peak. It can handle overload spikes up to 250 g peak, with linearity ≤1% from 0.0001 g to 20 g peak and ≤2% from 20 g to 200 g peak. The resonant frequency when mounted is 11 kHz nominal, and the frequency response is ±5% between 0.5 Hz and 3000 Hz, with ≤10% between 3 kHz and 4.5 kHz. Internal insulation resistance is a minimum of 108 ohms, and capacitance is 3300 pF nominal pole to pole for a 6 m integral cable.

Where to Use the 144-201-000-222

This accelerometer excels in industrial vibration monitoring for rotating machinery, such as turbines, pumps, and compressors. Its CENELEC approved version (PTB conformance certificate No Ex-80/2183 EEx ib IIC T5) makes it suitable for explosive atmospheres. The wide temperature range—Zone A from -54°C to +260°C and Zone B from -54°C to +125°C—ensures reliable operation in extreme conditions, from cold storage to high-heat processes.

Installation and Mounting Guidance

Mount the CA 201 using four Allen screws M6x35 with M6 spring lock washers, applying a screw torque of 15 Nm. No electrical insulation of the mounting surface is needed, simplifying setup. The integral cable options include 3 m (ordering number 144-201-000-2) or 6 m (ordering number 144-201-000-4), with an Ex i version available for hazardous areas. Ensure the cable is routed to avoid mechanical stress and maintain signal integrity.

Maintenance and Reliability Tips

With a hermetically welded stainless steel case, the CA 201 requires minimal maintenance. The dynamic calibration at the factory at 5 g peak and 120 Hz (+23°C) means no subsequent calibration is necessary under normal use. Regularly inspect the cable for wear, especially in high-temperature zones where the cable can withstand up to +260°C. The base strain sensitivity of ≤10-5 g/µε minimizes measurement errors from mounting stresses.

Selection Guide and Purchasing Advice

When ordering the 144-201-000-222, specify the cable length needed: 3 m (144-201-000-2) or 6 m (144-201-000-4). For explosive environments, choose the Ex i version with 3 m cable (144-201-000-1). Ensure your signal conditioner supports charge output from a two-pole system insulated from the case. Petro Auto Tech offers genuine Vibro Meter accelerometers with fast shipping and expert support to help you select the right model for your application.

Frequently Asked Questions About the 144-201-000-222

Q: What is the operating temperature range of the 144-201-000-222?

A: The accelerometer operates in Zone A from -54°C to +260°C and Zone B from -54°C to +125°C, with the cable rated for +260°C.

Q: Is the CA 201 suitable for explosive atmospheres?

A: Yes, it is available in a CENELEC approved version with PTB conformance certificate No Ex-80/2183 EEx ib IIC T5.

Q: What is the sensitivity of this accelerometer?

A: The sensitivity is 100 pC/g ±5% at 120 Hz, with a dynamic range from 0.0001 g to 200 g peak.

Q: Does the 144-201-000-222 require calibration after installation?

A: No, it comes with dynamic calibration at the factory, and no subsequent calibration is necessary under normal conditions.