1、 Model code analysis (84661-XX)
84661: Product Series → Armored Dual core Shielded Vibration Sensor Connection Cable
20 (XX): Cable length → 20 feet (≈ 6.096 meters)
2、 Core technical parameters
1. Electrical and structural
Core specifications: 2-core twisted shielded wire, 22 AWG (0.5mm ²), dual core independent shielding+total shielding, anti electromagnetic interference
Type of connector: One end is a dual socket plug (compatible with 9200/330500 sensors), and the other end is a terminal block (connected to a preamplifier/monitoring module)
Armor material: stainless steel armor, resistant to mechanical wear, compression, and tension
Shielding layer: double-layer shielding (core wire+main cable), reducing signal attenuation and interference
Characteristic impedance: Suitable for Bentley vibration sensor standard impedance, stable signal transmission
2. Machinery and Environment
Length: 20 feet (6.096 meters)
Outer diameter: Approximately 6.35mm (0.25 inches) after armor
Working temperature: -55 ℃~+121 ℃ (-67 ° F~+250 ° F)
Protection level: IP67, waterproof, dustproof, oil resistant, corrosion-resistant
Bending radius: minimum bending radius ≥ 8 times the outer diameter of the cable, convenient for on-site wiring
Weight: Approximately 0.8kg/20 feet
3. System adaptation
Compatible sensors: 9200 series dynamic coil speed sensor, 330500/190501 piezoelectric speed sensor
Adaptation system: Bentley 3300/3500 monitoring system, PLC/DCS vibration monitoring channel
Transmission distance: standard 20 feet, maximum up to 305 meters (1000 feet), long-distance transmission signal attenuation ≤± 3dB
Typical application: Transmission of casing vibration signals for rotating machinery such as steam turbines, compressors, fans, pumps, etc
4. Comparison with the same series
84661-10:10 feet (3.048 meters) armored cable
84661-12-12 feet (3.658 meters) armored cable
84661-17:17 feet (5.182 meters) armored cable
84661-20 feet (6.096 meters) armored cable (this model)
84661-30: 30 feet (9.144 meters) armored cable
3、 Key selection points
Prioritize matching sensor length and monitoring system distance, 84661-20 is suitable for medium distance wiring
Armor design suitable for harsh industrial environments, replacing non armored 9571 series to enhance durability
To be used in conjunction with Bentley preamplifier/monitoring module to ensure signal matching