Bently Nevada 330105-02-12-90-12-05 Probe

Bently Nevada 330105-02-12-90-12-05 3300 XL 8mm Reverse Mount Probe

Product Introduction

The Bently Nevada 330105-02-12-90-12-05 belongs to the 3300 XL 8 mm reverse mount probe family. Manufacturers rely on this model for critical machinery monitoring in hazardous locations. The -12 FluidLoc cable option provides additional protection. However, note that most installations do not require FluidLoc due to the existing probe sleeve. Consider your application carefully before ordering this cable type.

Technical Specifications

The Bently Nevada 330105-02-12-90-12-05 uses 3/8-24 probe case threads. Maximum thread engagement length is 0.563 inches. The total length option -90 equals 9.0 meters (29.5 feet).

Connector option -12 is a miniature ClickLoc coaxial connector with FluidLoc cable. This cable adds fluid resistance for harsh environments. Nevertheless, the probe sleeve already provides substantial protection.

Agency approval option 05 includes CSA, ATEX, and IECEx certifications. These approvals allow installation in Class I, Zone 0, and Zone 2 hazardous areas.

Nominal probe DC resistance from center conductor to outer conductor is 9.87 ± 0.50 ohms for the 9.0m length.

Dimensions are 20.4 cm x 22.2 cm x 3.7 cm.

Hazardous Area Approvals

The Bently Nevada 330105-02-12-90-12-05 supports multiple protection methods.

For ia (intrinsically safe) installations:

• Use with zener barriers per drawing 141092 or galvanic isolators

• Class I, Zone 0: AEx/Ex ia IIC T5...T1 Ga

• Class I, Groups A, B, C, D

• Class II, Groups E, F, G

• Class III

For nA / ec (non-incendive) installations:

• Use with non-incendive circuit per drawing 140979

• Class I, Zone 2: AEx/Ex nA IIC T5…T1 Gc

• Class I, Division 2, Groups A, B, C, D

• Class I, Zone 2: AEx/Ex ec llC T5…T1 Gc

Temperature & Environmental Parameters

Standard operating and storage temperature ranges from -52°C to +177°C (-62°F to +350°F).

Extended temperature range capabilities differ by component:

• Probe tip: -52°C to +218°C (-62°F to +425°F)

• Probe cable and connector: -51°C to +260°C (-60°F to +500°F)

A critical warning: exposing the probe below -34°C (-30°F) may cause premature failure of the pressure seal.

Temperature schedule for EPL Ga and Gc:

• T1: -55°C to +232°C

• T2: -55°C to +177°C

• T3: -55°C to +120°C

• T4: -55°C to +80°C

• T5: -55°C to +40°C

Probe relative humidity performance shows less than a 3% change in Average Scale Factor (ASF) when tested at 93% humidity per IEC standard 68-2-3 for up to 56 days.

Mechanical & Pressure Specifications

The Bently Nevada 330105-02-12-90-12-05 seals differential pressure between probe tip and case. A Viton® O-ring provides this sealing function. Note that probes are not pressure tested prior to shipment.

Probe weight is 323 g per meter (11.4 oz per meter). For the 9.0m length, the probe alone weighs approximately 2.91 kg.

Installation Guidelines

Follow these steps for proper installation:

• First, verify the target surface is clean and free of debris.

• Next, check that the application truly requires the FluidLoc cable option. Most 3300 XL installations work fine without it.

• Then, set the recommended gap according to your 3300 XL proximitor specifications.

• Finally, secure the ClickLoc connector until you hear a distinct click.

Additionally, always refer to drawing 141092 for intrinsic safety installations or drawing 140979 for non-incendive circuits. Use only approved barriers or isolators in hazardous areas.

Packaging List

• 1 x Bently Nevada 330105-02-12-90-12-05 probe assembly (9.0m FluidLoc cable)

• 1 x Miniature ClickLoc coaxial connector (pre-installed)

• 1 x Quick start reference card

Note: No certificates or warranty documents are included.

Shipping method: Fedex, UPS, DHL

Frequently Asked Questions (FAQ)

1. Do I really need the FluidLoc cable option on this 330105-02-12-90-12-05?
Probably not. The probe sleeve already provides excellent protection for most 3300 XL 8mm installations. Only order FluidLoc if your specific application involves continuous fluid exposure or submersion.

2. What is the difference between standard and extended temperature range?
The extended range allows higher tip temperatures up to 218°C. Meanwhile, the cable and connector can reach 260°C. However, always check the temperature schedule table for your specific T-class rating.

3. Can I use the Bently Nevada 330105-02-12-90-12-05 in Zone 0 areas?
Yes, you can. With intrinsic safety barriers or galvanic isolators per drawing 141092, this probe achieves AEx/Ex ia IIC T5...T1 Ga rating for Zone 0.

4. What happens if I expose the probe below -34°C?
Short-term exposure may be acceptable. Nevertheless, sustained operation below -34°C (-30°F) can cause premature pressure seal failure. Consider this limitation for cold climate installations.

5. Is the probe pressure tested before shipment?
No, it is not. Bently Nevada does not pressure test these probes prior to shipping. The Viton O-ring design seals differential pressure, but you should verify seal integrity during installation.