What Makes the 330191-00-16-50-00 8 mm ETR Probe Reliable?
Why do proximity probe failures persist in high-temperature turbomachinery? The 330191-00-16-50-00 answers with engineering-grade precision. This Bently Nevada 3300 XL 8 mm ETR probe uses a PPS tip and stainless steel case for ruggedness.
Its 5.0 m total length suits 5 m Proximitor sensors. The 3/8-24 UNF thread and 1.6 in case length simplify mounting. A 0.0 in unthreaded length ensures full thread engagement.

Key Specifications of the 330191-00-16-50-00
- Input voltage: -17.5 Vdc to -26 Vdc, 12 mA maximum.
- Output resistance: 50 Ω nominal.
- Nominal probe resistance: 8.73 ± 0.50 Ω at 5.0 m.
- Isolation: Differential pressure seal via Viton O-ring.
- Sensitivity: <2 mV output change per volt input change.
- Cable: 75 Ω triaxial FEP, 5.0 m.
- Thread: 3/8-24 UNF, 0.563 in max engagement.
- Weight: 323 g/m (11.4 oz).
The TipLoc and CableLoc designs provide 330 N pull strength. This ensures robust tip-to-body bonding and cable retention.
Applications for the 330191-00-16-50-00
This probe excels in steam turbine and compressor monitoring. It measures radial vibration and axial position. The ETR cable handles high temperatures up to +232°C for T1 classification.
Additionally, the 8 mm diameter offers optimal robustness against physical abuse. Therefore, it suits harsh industrial environments. Use it with Bently Nevada extension cables and Proximitors for entity parameters.

Integrating the 330191-00-16-50-00
Installation requires a 3/8-24 UNF threaded hole. The 1.6 in case length fits standard mounts. Connect the 5.0 m cable to a 5 m Proximitor sensor only.
For nonincendive circuits, follow drawing 140979. Operation below -23.5 Vdc maintains linear range. The gold-plated connectors accept 0.565 N•m torque.
Reliability and Maintenance
Inspect the probe tip and cable periodically. Check for oil leakage; the FluidLoc option prevents this. The Viton O-ring seals differential pressure.
However, probes are not pressure tested. Avoid exceeding temperature limits. The stainless steel case resists corrosion. This design minimizes downtime and extends service life.
Availability & Condition at AutoDCSTech
| Part Number | 330191-00-16-50-00 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
