When Vibration Data Must Survive the Harshest Conditions, Which Sensor Do You Trust?
In oil, gas, and heavy industry, machinery protection depends on accurate vibration signals. But what happens when the measurement point sits in an explosive atmosphere, exposed to extreme temperatures and mechanical stress? The Vibro Meter 111-412-000-012-A2-B6-E005-F0-G000-H05 proximity measuring system delivers a practical answer. Manufactured by Meggitt (Vibro-Meter), this system combines a rugged transducer with an integral cable and a total length of 5 m, ready for demanding turbomachinery applications.
What Is the 111-412-000-012-A2-B6-E005-F0-G000-H05?
This is a proximity measuring system built around a wire coil transducer with a Torlon (polyamide-imide) tip, encapsulated in a stainless steel body (AISI 316L) using high-temperature epoxy glue. The model number encodes its configuration: Environment (A) 2 = Explosive Ex i, Body thread (B) 6 = 3/8?-24UNF, Integral cable length (E) 005 = 0.5 m ± 50 mm, Optional protection (F) 0 = None, Flexible hose length (G) 000 = None, and Total system length (H) 05 = 5 m. The unit weighs just 0.22 kg, making installation straightforward.
Key Parameters That Matter on Site
| Specification | Value |
|---|---|
| Product Type | Proximity Measuring System |
| Environment | Explosive Ex i |
| Body Thread | 3/8?-24UNF |
| Integral Cable Length | 0.5 m ± 50 mm |
| Total System Length | 5 m |
| Weight | 0.22 kg |
| Transducer Operating Temperature | −40 to +180°C with drift <5% |
| Transducer Short-Term Survival | +180 to +220°C with drift >5% |
| Transducer and Cable (Ex Zone) | −40 to +195°C |
| Cable, Connector and Optional Protection | −40 to +200°C |
| Protection Rating (Head) | IP68 |
| Vibration | 5 g peak between 10 and 500 Hz |
| Shock Acceleration | 15 g peak (half sine-wave, 11 ms duration) |
| Cable Type | FEP covered 70 Ω coaxial cable, Ø3.6 mm |
| Connectors | Self-locking miniature coaxial connectors |
Where This System Proves Its Value
In a gas compression station, the Ex i rating allows direct installation in Zone 0, Zone 1, or Zone 2 hazardous areas without additional barriers. The transducer’s IP68 head withstands washdowns and temporary immersion. For steam turbine monitoring, the wide operating temperature range of −40 to +180°C covers most bearing housing conditions. The 5 m total length gives technicians flexibility to route cables away from hot surfaces and moving parts. When a machine trips unexpectedly, every minute of downtime costs money. This system helps you catch rotor displacement and vibration issues before they become failures.
Installation and Integration Notes
The transducer requires a high-frequency power source from an IQS900 signal conditioner. When connecting, hand-tighten the self-locking miniature coaxial connectors until locked. Do not over-torque. The 3/8?-24UNF body thread mounts directly into standard proximity probe holders. If you plan to integrate this system into a larger protection network, confirm cable and gateway compatibility with your supplier. For Ex i installations, follow the manufacturer’s safety manual and local regulations.
Maintenance for Long-Term Reliability
Inspect the transducer tip and integral cable periodically for mechanical damage or chemical attack. The FEP cable jacket resists almost all chemicals and offers low permeability to liquids, gases, and moisture. In high-vibration areas, check the connector locking mechanism every few months. Because the transducer operates with a signal conditioner, verify the conditioner output during routine shutdowns. Keeping spares on hand reduces unplanned downtime — Oil AutoTech offers fast dispatch, worldwide, for critical automation parts.
Frequently Asked Questions
Q: What signal conditioner does this transducer need?
A: It requires a high-frequency power source from an IQS900 signal conditioner.
Q: Can I use this system in a hazardous area?
A: Yes, the Environment (A) code 2 indicates Explosive Ex i approval. The transducer and cable are rated for −40 to +195°C in Ex Zone applications.
Q: What is the total system length?
A: The total system length is 5 m, with an integral cable of 0.5 m ± 50 mm.
Q: How should I connect the coaxial connectors?
A: Hand-tighten the self-locking miniature coaxial connectors until locked. Do not use tools.
Q: Does this model include a flexible hose or FEP sheath?
A: No, the Optional protection (F) is 0 = None and Flexible hose length (G) is 000 = None.
Get Your 111-412-000-012-A2-B6-E005-F0-G000-H05 Today
Oil AutoTech specializes in fast supply for oil, gas, and industrial automation applications. Our team offers hands-on technical selection help to ensure you get the right spares. Contact Oil AutoTech today for pricing and availability.
