Product Introduction
When operating in extreme heat, standard proximity probes fail. The Bently Nevada 330301-000-011-10-90-00-00 3300 XL High Temperature Probe delivers reliable performance up to 350°C. Designed for continuous monitoring in harsh environments, this probe features a ceramic tip and AISI 316L stainless steel case. With a 3/4-16 UNF thread, it integrates seamlessly into existing systems. The probe includes a 1.0-metre hardline cable and 9.0-metre total length, plus extension cable.
Technical Specifications
The Bently Nevada 330301-000-011-10-90-00-00 offers precise measurements with an incremental scale factor of 3.94 V/mm (100 mV/mil) ±9.65% over the 4.0 mm linear range. Deviation from best fit straight line is less than ±78 µm (±3.1 mils). Frequency response is 0 to 6 kHz (+0, -3 dB typical) with up to 305 metres of field wiring. The probe operates from -34°C to +350°C and has a dc resistance of 5.06 ohms (center to outer conductor). Recommended minimum target diameter is 30.5 mm and minimum shaft diameter is 152 mm.
Application Scenarios
This probe is ideal for turbine shaft vibration monitoring in power generation plants. In high-temperature gas compressors, the 330301-000-011-10-90-00-00 maintains accuracy despite thermal expansion. It also suits critical rotating machinery in petrochemical facilities where ambient temperatures exceed standard probe limits.
Installation & Setup Guidance
Mount the Bently Nevada 330301-000-011-10-90-00-00 using the 3/4-16 UNF threads. Ensure the target surface is clean and flat. The probe comes with a 9.0-metre extension cable included; verify cable routing to avoid sharp bends. For optimal performance, maintain the linear range and avoid contact with the target. Check the unthreaded length option (0 in) and overall case length (1.1 in) before installation.
Maintenance & Reliability
Given the extreme temperature range (-34°C to +350°C), inspect the probe tip and cable for signs of wear annually. The ceramic tip resists thermal shock, and the stainless steel case withstands corrosive environments. The probe's frequency response remains stable over long cable runs (up to 305 m). Regular checks of the dc resistance can indicate cable deterioration. This design reduces downtime by preventing premature failure in high-heat applications.
Selection Guide & Purchasing Advice
Verify that the thread size (3/4-16 UNF) matches your mounting point. The 1.0-metre hardline and 9.0-metre total length suit most installations. If additional cable length is needed, order the appropriate option. For stainless steel armored extension cable, select option 11 instead of 00. Ensure agency approval requirements (this unit is 00). PLC Source PRO supplies genuine Bently Nevada parts with reliable sourcing.