Product Overview
When shaft vibration data goes dark, machinery protection decisions become guesswork. The 111-412-000-013-A1-B1-E050-F1-G050-H05 from Meggitt (Vibro-Meter) keeps that data flowing. This proximity measuring system uses the eddy-current principle to deliver non-contact displacement measurement for critical rotating equipment.
As part of the vibro-meter product line, it conforms to API 670 recommendations. The system pairs a transducer with a 5.0 m integral cable, an M10 × 1 body thread, and a flexible stainless steel hose for mechanical protection. At just 0.22 kg, it installs without adding meaningful load to the machine casing.
Key Parameters That Matter
Measurement Range and Frequency Response
The system offers a 2 or 4 mm measurement range with a frequency response of DC to 20 kHz (−3 dB). That bandwidth captures both slow thermal drift and high-frequency vibration events, so one sensor covers gap measurement and dynamic vibration monitoring.
Temperature-Compensated Design
The transducer operates from −40 to +180 °C with drift below 5%. Short-term survival extends to +220 °C. In Ex Zone installations, the transducer and cable handle −40 to +195 °C, while the cable, connector, and optional protection reach −40 to +200 °C. This matters on steam turbines and hot gas expanders where ambient heat punishes lesser sensors.
Environmental and Mechanical Ratings
The transducer head (tip and integral cable) carries an IP68 rating per IEC 60529. Vibration tolerance is 5 g peak between 10 and 500 Hz per IEC 60068-2-26, and shock acceleration reaches 15 g peak (half sine-wave, 11 ms) per IEC 60068-2-27.
Construction and Cabling
The wire coil uses a Ø8 mm Torlon (polyamide-imide) tip encapsulated in an AISI 316L stainless steel body with high-temperature epoxy glue. The FEP-covered 70 Ω coaxial cable measures Ø3.6 mm and terminates in self-locking miniature coaxial connectors. Hand-tighten these until locked.
Where This System Fits
Turbine and Compressor Protection
Shaft relative vibration and gap/position measurement chains protect machinery and support condition monitoring. The 111-412-000-013-A1-B1-E050-F1-G050-H05 integrates with VM600Mk2/VM600 and VibroSmart machinery monitoring systems, making it a practical drop-in for API 670 applications.
Hazardous Area Installations
Ex certified versions suit potentially explosive atmospheres. The flexible hose adds mechanical protection, though it is not leak-tight. For chemical exposure, the FEP sheath resists almost all chemicals and limits liquid, gas, and moisture permeability.
Integration and Selection Advice
The transducer requires a high-frequency power source from an IQS900 signal conditioner. Voltage or current output includes short-circuit protection. Before ordering, confirm your signal conditioner model, cable routing path, and thread compatibility with your mounting boss. Engineers specifying replacement chains should verify total system length against the existing installation.
Oil AutoTech supplies fast-dispatch spares for oil, gas, and industrial automation applications, with quick worldwide delivery and hands-on technical selection help. Please verify current lifecycle status and availability with Oil AutoTech before ordering.
Maintenance and Reliability
Inspect the transducer tip and cable periodically for mechanical damage. Check connector tightness and cable routing to avoid abrasion. Follow the manufacturer’s safety manual for all Ex-rated installations. Because the system is temperature-compensated, drift checks during scheduled outages confirm measurement integrity without disrupting production.
