Description
Bently 330190-080-01-00
Technical Specifications
| Parameter Category | Specific Specification |
|---|---|
| Manufacturer | Bently Nevada (Baker Hughes) |
| Product Family | 3300 XL 8mm ETR Extension Cable |
| Cable Length | 080 = 8.0 meters (26.2 feet) |
| Cable Construction | 01 = Armored cable with stainless steel braid |
| Agency Approval | 00 = No agency approval required |
| Operating Temperature (Probe End) | -51°C to +260°C (-60°F to +500°F) |
| Operating Temperature (Proximitor End) | -51°C to +100°C (-60°F to +212°F) |
| Cable Diameter | Approximately 4.5 mm (0.18 in) |
| Minimum Bend Radius | 25 mm (1.0 in) |
| Characteristic Impedance | 75 ohms |
| Capacitance | 85 pF/meter typical |
| DC Resistance | 0.25 ohms/meter typical |
| Insulation Material | High-temperature fluoropolymer |
| Armor Material | 304 stainless steel braid |
| Connector Type | ClickLoc gold-plated copper connector |
| Pull Strength | 330 N (75 lbf) minimum |
| Weight | Approximately 0.5 kg |
Key Features
- Extended Temperature Range: Designed for probe end temperatures from -51°C to +260°C, far exceeding standard cable capabilities
- Armored Construction: Stainless steel braid armor provides mechanical protection against abrasion, crushing, and rodent damage
- ClickLoc Connector: Patented ClickLoc gold-plated connector ensures secure, reliable connection with positive locking mechanism
- High Pull Strength: Cable-to-connector bond withstands 330 N (75 lbf) pull force, preventing accidental disconnection
- Signal Integrity: Maintains precise 75-ohm characteristic impedance and low capacitance for accurate signal transmission
- Chemical Resistance: Fluoropolymer insulation resists oils, chemicals, and solvents found in industrial environments
- Full Interchangeability: ETR cables are interchangeable within the 3300 XL 8mm ETR system without individual matching
Application Scenarios
- High-temperature steam turbine monitoring: Extends probe to Proximitor distance in steam turbine applications with high casing temperatures
- Gas turbine hot section monitoring: Connects probes in high-temperature zones near combustion chambers and turbines
- Furnace and kiln equipment: Monitors rotating equipment in high-temperature processing environments
- Chemical reactor agitators: Connects probes in vessels with elevated process temperatures
- Paper machine dryer sections: Monitors bearings and rolls in high-temperature drying sections
- Steel mill hot rolling: Connects probes near hot rolling mills and continuous casters
- Geothermal power generation: Monitors turbines and pumps in high-temperature geothermal applications
Performance Parameters The ETR extension cable maintains signal integrity across the full temperature range. The characteristic impedance of 75 ohms is maintained within ±5% across the operating temperature range. Capacitance variation is less than 10% across the temperature range. The DC resistance is low enough to prevent significant signal attenuation at the maximum length. The cable is designed to maintain these electrical parameters after thermal cycling and long-term exposure to maximum temperatures.
Material Composition The cable conductor is silver-plated copper for excellent conductivity and oxidation resistance at high temperatures. The dielectric is high-temperature fluoropolymer (PTFE or similar) with stable electrical properties across the temperature range. The outer jacket is high-temperature resistant elastomer or fluoropolymer. The armor is 304 stainless steel wire braid providing mechanical protection and EMI shielding. The connectors are gold-plated brass with high-temperature insulators. The cable-to-connector bond uses high-temperature adhesive and mechanical crimping.
Structural Characteristics The cable features a coaxial construction with central conductor, dielectric, shield, and outer jacket. The armor is a tightly woven stainless steel braid over the outer jacket. The ClickLoc connector features a spring-loaded locking mechanism that engages with a positive click when fully mated. The connector body is designed for finger-tightening with wrench backup for final torque. The cable is marked with length and part number at regular intervals. The armored construction adds approximately 1.0 mm to the overall diameter compared to non-armored versions.
