Bently Nevada 330106-05-30-90-12-05 3300 XL Reverse Mount Probe Overview

This 330106-05-30-90-12-05 delivers reliable shaft vibration monitoring for large rotating machinery. The device belongs to the proven 330106 series from Bently Nevada. Its reverse mount design allows easy installation in confined spaces. This sensor provides critical protection for turbines, compressors, and pumps.

Technical Specifications of the 330106-05-30-90-12-05

Model Number: 330106-05-30-90-12-05 (M10 x 1 threads)

Total Length Option: 90 = 9.0 meters (29.5 feet)

Connector Option: 12 = Miniature ClickLoc coaxial connector with FluidLoc cable

Agency Approval Option: 05 = CSA, ATEX, IECEx Approvals

Probe Tip Material: Polyphenylene sulfide (PPS)

Probe Case Material: AISI 303 or 304 stainless steel (SST)

Nominal DC Resistance (RPROBE): 9.87 ± 0.50Ω for the 9.0m length

Probe Case Thread: M10x1 with maximum thread engagement of 15mm

Weight: 323 g/m (11.4 oz) per meter of probe, total approximately 2.9 kg

Cable and Connector Features

Standard Cable: 75Ω triaxial FEP insulated cable

FluidLoc Option (-12): Provides extra fluid sealing for the cable connection. Most 330106 installations do not need this option. The probe sleeve already offers good fluid protection. Only select this option for high-fluid exposure applications.

Connector Material: Gold-plated brass or gold-plated beryllium copper

Tensile Strength: 330 N (75 lbf) from probe case to probe lead. The cable connectors handle 270 N (60 lbf).

Armor Option: Flexible AISI 302 or 304 SST with FEP outer jacket (available upon request)

Environmental and Performance Data

Standard Temperature Range: -52°C to +177°C (-62°F to +350°F)

Extended Temperature Cable: PFA insulated cable rated for tip up to +218°C and cable up to +260°C

Temperature Warning: Exposing this probe below -34°C (-30°F) may cause premature pressure seal failure.

Humidity Performance: Less than 3% change in Average Scale Factor (ASF) when tested at 93% humidity for 56 days per IEC 68-2-3

Pressure Seal: Viton® O-ring provides differential pressure sealing between tip and case. Bently Nevada does not pressure test probes prior to shipment.

Installation Guide for the 3300 XL Reverse Mount Probe

First, inspect the mounting hole and probe threads for any damage. Second, screw the 330106-05-30-90-12-05 into the 8mm reverse mount hole by hand. Turn until the probe tip contacts the target shaft surface. Third, back the probe out by 1/4 to 1/2 turn to set the initial air gap. Fourth, tighten the lock nut to the specified torque. Fifth, connect the FluidLoc ClickLoc connector securely to the extension cable. Do not exceed the 15mm thread engagement limit. Keep the 9.0 meter cable away from sharp edges and high heat sources. Secure the cable with proper clips every 30 cm.

Packing List for Bently Nevada 330106-05-30-90-12-05

• 1 x 330106-05-30-90-12-05 3300 XL 8mm Reverse Mount Probe
• 1 x Integrated 9.0m triaxial FEP cable with FluidLoc ClickLoc connector
• 1 x Viton® O-ring pre-installed on the probe case
• 1 x Product installation manual with mounting instructions

Frequently Asked Questions (FAQ)

1. What makes the FluidLoc option (-12) different from standard connectors?
The FluidLoc cable provides extra sealing against oil and fluid ingress. Most 330106 probes do not need this option due to the existing probe sleeve protection. Use it only for applications with continuous fluid exposure.

2. Can I use the 330106-05-30-90-12-05 with a 3500 monitoring system?
Yes, this probe works with the 3500 rack system. You need a compatible 3300 XL proximitor and extension cable for proper operation. The 9.0 meter length provides flexibility for large machinery.

3. What approvals does the -05 option include for this probe?
The -05 agency approval covers CSA, ATEX, and IECEx standards. This makes the 330106-05-30-90-12-05 safe for hazardous gas and dust areas.

4. How do I verify the probe’s DC resistance value?
Measure resistance between the center conductor and outer conductor using a multimeter. A reading of 9.87 ± 0.50Ω confirms the 9.0 meter cable length is correct.

5. Is the 9.0 meter cable length field-replaceable?
No, the cable is integrated into the 330106-05-30-90-12-05. You cannot replace the cable separately. The 9.0 meter length is ideal for connecting directly to a proximitor located far from the measurement point.