Product Overview
When critical rotating machinery requires precise shaft vibration and position monitoring, the Vibro Meter 111-912-000-011-A1-B6-E5000-F0-G0-H05 Proximity Measuring System delivers reliable non-contact measurement. This Meggitt (Vibro-Meter) sensor uses eddy-current technology to detect displacement without physical contact. It conforms to API 670 5th edition and is suitable for functional safety contexts up to SIL 2 (IEC 61508) and Cat 1 PL c (ISO 13849). The system includes a TQ912 proximity sensor with a 3/8″-24UNF body thread, a 5000 mm ±500 mm integral cable, and a total system length of 5 m. Weighing only 0.22 kg, this compact sensor fits demanding industrial environments.
Technical Specifications Breakdown
- Measurement Range and Frequency Response: The sensor offers a linear measurement range of 2 or 4 mm with a frequency response from DC to 20 kHz (−3 dB). This wide bandwidth captures both static position and dynamic vibration signals, essential for turbine and compressor monitoring.
- Temperature Range: The sensor operates from −40 to 180°C and can survive short-term exposure up to 220°C for up to 2 hours. The cabling and connector handle −40 to 200°C, ensuring reliable performance in extreme thermal conditions.
- Protection Rating: The sensor head (tip and integral cable) is rated IP68 per IEC 60529, providing excellent protection against dust and prolonged immersion. This makes it suitable for harsh, wet environments.
- Vibration and Shock Resistance: The sensor withstands 5 g peak vibration between 10 and 500 Hz and 15 g peak shock acceleration (half sine-wave, 11 ms duration), ensuring durability in high-vibration machinery.
- Pressure Rating: Maximum pressure between sensor tip and body is 6 bar (100 psid), allowing installation in pressurized zones.
Industry Applications
This proximity measuring system excels in turbomachinery monitoring, including steam turbines, gas turbines, compressors, and pumps. Its non-contact eddy-current principle measures shaft radial vibration and axial position without wear. The temperature-compensated design and voltage or current output with short-circuit protection ensure stable signals even in fluctuating thermal conditions. For example, in a steam turbine train, the sensor provides real-time shaft displacement data to prevent rubs and bearing damage. The optional diagnostic circuitry detects sensor, cabling, or signal conditioner issues, reducing unplanned downtime.
Installation & Setup Guidance
Mount the sensor with the 3/8″-24UNF thread into a properly tapped hole, ensuring the sensor tip faces the target material (VCL 140 steel for calibration). Calibrate the system at +23°C ±5°C using the specified target. Connect the integral cable (5000 mm ±500 mm) to the IQS900 signal conditioner via self-locking miniature coaxial connectors—hand-tighten until locked. For hazardous area installations, verify the Ex certification and temperature class. The total system length is 5 m; do not exceed this for accurate measurement drift performance (<5% drift for −30 to 150°C).
Maintenance & Reliability
Regularly inspect the sensor tip and cable for physical damage or contamination. The IP68-rated head resists water and dust, but chemical exposure may degrade the FEP-covered cable. Verify the optional diagnostic circuitry periodically to detect early faults. The stainless-steel body (AISI 316L) and PPS tip provide corrosion resistance. For long-term reliability, follow the manufacturer's guidelines for cleaning—avoid solvents on the sensor tip. The system's temperature-compensated design minimizes drift, extending calibration intervals.
Selection Guide & Purchasing Advice
Before purchasing the 111-912-000-011-A1-B6-E5000-F0-G0-H05, confirm your application requires a 5 m total system length and a 3/8″-24UNF thread. Verify compatibility with your signal conditioner (IQS900 series). If you need a different integral cable length (e.g., 1 m or 10 m chains), consider other part numbers in the TQ912 family. For hazardous area use, ensure the Ex version is selected. SpareTechPLC stocks this model and can advise on availability and suitable accessories. Contact our team to verify lifecycle status and lead times before ordering.
Frequently Asked Questions
Q1: What is the linear measurement range of the 111-912-000-011-A1-B6-E5000-F0-G0-H05?
A1: The sensor offers a linear measurement range of 2 or 4 mm, depending on configuration.
Q2: Can this sensor be used in explosive atmospheres?
A2: Yes, the Vibro Meter proximity measuring system is available in Ex versions certified for hazardous areas. Verify the specific Ex certification for your region.
Q3: What is the maximum operating temperature for the sensor?
A3: The sensor operates from −40 to 180°C continuously, with short-term survival up to 220°C for 2 hours.
Q4: How long is the integral cable on this model?
A4: The integral cable length is 5000 mm ±500 mm, and the total system length is 5 m.
Q5: What protection rating does the sensor head have?
A5: The sensor head (tip and integral cable) is rated IP68 per IEC 60529, offering protection against dust and immersion.
