Product Overview
When industrial machinery operates under extreme temperatures or in explosive atmospheres, reliable proximity measurement becomes critical. The Vibro Meter 111-412-000-012-A2-B6-E005-F0-G000-H05 Proximity Measuring System delivers precise displacement sensing where standard sensors fail. This rugged transducer, part of the Meggitt (Vibro-Meter) family, withstands temperatures from -40 to +180°C with drift under 5%, and survives short-term exposure up to +220°C. Its Ex i (intrinsically safe) rating makes it suitable for hazardous zones.
Technical Specifications Breakdown
Let’s examine the key parameters that define this system’s performance:
- Explosive Ex i Environment (A=2): The transducer carries intrinsic safety certification for use in explosive atmospheres, ensuring safe operation in oil, gas, or chemical plants.
- Body Thread (B=6): The 3/8?-24UNF thread allows secure mounting in standard industrial ports, simplifying installation.
- Integral Cable Length (E=005): A 0.5 m ± 50 mm integral cable connects the transducer tip to the extension cable, minimizing signal loss.
- Total System Length (H=05): The complete system reaches 5 meters, providing flexibility for remote placement of the signal conditioner.
- Protection Rating: The transducer head (tip and integral cable) meets IP68 per IEC 60529, meaning it withstands continuous immersion in water.
- Vibration and Shock: Withstands 5 g peak vibration (10–500 Hz) and 15 g peak shock (half sine, 11 ms), per IEC 60068-2-26 and -27.
- Weight: At only 0.22 kg, the transducer is lightweight yet robust.
Industry Applications
This proximity measuring system excels in rotating machinery monitoring. For example, in steam turbines or centrifugal compressors, the transducer measures shaft displacement and vibration. The Ex i rating allows installation in Zone 0 or Zone 1 hazardous areas, such as gas compressor stations. The wide temperature range also suits engine test cells where exhaust heat exceeds 150°C.
Installation & Setup Guidance
Mount the transducer using the 3/8?-24UNF thread into a pre-drilled port. Hand-tighten the self-locking miniature coaxial connectors until they lock—do not use tools. Route the FEP-covered 70 Ω coaxial cable away from high-voltage lines to avoid interference. For Ex i installations, ensure the signal conditioner (IQS900) is certified for the same zone.
Maintenance & Reliability
Inspect the transducer tip and cable periodically for physical damage. The stainless steel body (AISI 316L) resists corrosion, but check the FEP sheath for cuts if used in chemical environments. The IP68 rating means no routine cleaning is required, but verify connector tightness after maintenance. Regular calibration checks every 12 months ensure drift remains below 5%.
Selection Guide & Purchasing Advice
Before ordering, confirm your required total system length and cable options. The 111-412-000-012-A2-B6-E005-F0-G000-H05 comes with a 0.5 m integral cable and 5 m total length. If you need different lengths, contact SpareTechPLC for compatible variants. SpareTechPLC stocks genuine Meggitt (Vibro-Meter) parts and can advise on replacement options.
Frequently Asked Questions
Q: What is the maximum operating temperature for the transducer in an Ex zone?
A: In an Ex zone, the transducer and cable operate from -40 to +195°C.
Q: Can the transducer be submerged?
A: Yes, the transducer head is rated IP68 per IEC 60529, allowing continuous immersion.
Q: What thread size does the transducer use?
A: It uses a 3/8?-24UNF body thread.
Q: Is the cable replaceable?
A: The integral cable is fixed at 0.5 m, but the extension cable can be ordered in different lengths.
Q: Does this model include a flexible hose?
A: No, the flexible hose length is set to 000 (none) for this configuration.
