General Information

Core Description

The 144-202-000-205 is a Meggitt vibro-meter CA202 heavy-duty industrial piezoelectric accelerometer featuring a high-sensitivity 100 pC/g charge output. Fully compatible with IPC70x signal conditioners, this unit works seamlessly with industrial vibration monitoring systems to deliver broad frequency tracking and stable differential measurement in harsh non-hazardous environments.

Specific Application

• Heavy-Duty Machinery Protection: Continuous vibration monitoring and dynamic measurement on large rotating industrial assets like gas/steam turbines, compressors, and large pumps.
• Severe Environment Asset Tracking: Condition monitoring in harsh production spaces exposed to high humidity, steam, oil mist, or corrosive sea-salt atmospheres.
• Broadband Structural Analysis: High-fidelity measurement of low-to-high frequency structural and mechanical anomalies across a response spectrum of 0.5 to 6000 Hz.

Ordering Information

System Compatibility

• Signal Conditioning: Pairs directly with vibro-meter IPC70x series signal conditioners (charge converters) for raw charge signal processing.
• Mounting Hardware: Fully compatible with the MA133 mounting adapter kit featuring a Micaver® mica-glass thermally isolating base.
• Wiring Interface: Terminated with flying leads (Blue +, White -, Green Case) for direct connection to local junction boxes (e.g., JB105 M301) or MS3106E14S7P connectors.

Substitute Model & Technical Differences

• Alternative Model: Ex Certified Version with 3m Integral Cable (Part Number: 144-202-000-106).
• Key Differences:

• Certification: The 144-202-000-205 is a Standard version designed strictly for non-hazardous industrial areas. The 144-202-000-106 is an Ex version carrying global explosion protection approvals (ATEX, IECEx, UKEX, KGS, EAC Ex).
• Application Area: The standard model is restricted to safe plant locations, whereas the Ex model is certified for installation within potentially explosive atmospheres (Zone 0, 1, or 2 hazardous areas).

Installation & Troubleshooting FAQ

Q1: What hardware is required to physically mount the CA202 sensor, and what is the proper torque value?
A: Mount the sensor using four M6 x 35 Allen screws and four M4 spring-lock washers. Tighten the screws to a nominal tightening torque of 15 Nm (11.1 lb-ft) to ensure rigid physical contact and correct frequency transmission.

Q2: Does the CA202 144-202-000-205 require external electrical insulation from the machine casing surface?
A: No. The CA202 is engineered as a symmetrical sensor featuring built-in internal case insulation and a differential output, meaning electrical insulation of the external mounting surface is not required.

Q3: Can the integral cable handle the same extreme temperature exposures as the main accelerometer body?
A: No. While the main sensor housing supports continuous operation from -55 to +260°C, the integral cable is rated for a narrower continuous range of -55 to +200°C. Ensure the cable routing path avoids localized machinery hot spots exceeding 200°C.

Q4: My vibration readings are noisy or cutting out. How should the cable leads be connected?
A: The sensor uses a 2-pin system insulated from the case. Verify that the flying leads are securely landed to the IPC70x signal conditioner: connect the Blue wire to positive (+), the White wire to negative (-), and land the Green wire to the designated Case/Ground terminal.

Q5: How does the sensor maintain signal integrity when sprayed with water, steam, or industrial lubricants?
A: The austenitic stainless-steel housing and the flexible protection hose are hermetically welded together. This creates a completely sealed, leaktight assembly that is impervious to 100% relative humidity, water, steam, oil, and dust.

KEY FEATURES AND BENEFITS

From the vibro-meter® product line

High sensitivity: 100 pC/g

Frequency response: 0.5 to 6000 Hz

Temperature range: −55 to 260°C

Available in standard versions and Ex versions certified for use in potentially explosive atmospheres

Symmetrical sensor with internal case insulation and differential output

Hermetically welded austenitic stainless-steel case and heat-resistant stainless-steel protection hose 

Integral cable