The 89477-27 is a Bently Nevada high-performance interconnection cable featuring a two-conductor 18 AWG twisted, shielded design. Fully compatible with 330500 sensors, this unit works seamlessly with monitors and the 21128 housing to deliver heavy-duty wiring clearance and stable machine health telemetry.

Enviromental Strength

• Sensitivity Rating: 20 mV/mm/s (508 mV/in/s) ±10% output directly proportional to vibration velocity .
• Frequency Response: 0.5 Hz to 1000 Hz (30-60,000 cpm) ±3.0 dB; 1 Hz to 200 Hz ±0.9 dB for optimized performance .
• Measurement Range: 102 mm/s (4 in/s) peak velocity range with ±3% amplitude linearity across full operating range .
• Output Specifications: -12 ±1 VDC output bias voltage with two-wire moving-coil technology and embedded signal conditioning .
• Cable Compatibility: Supports maximum cable length of 305 meters (1000 feet) with no signal degradation when used with 3500/46M monitor .
• Application Note: Specifically designed for hydroelectric turbines; NOT approved for hazardous areas or automated machinery protection .

Specific Application

• Signal connection routing between a 330500 Velomitor Piezo-velocity Sensor and industrial monitoring systems.
• Transducer wiring integration within tightly confined spaces using a specialized right-angle plug layout.
• Direct component coupling inside a 21128 Velocity Transducer Housing assembly to shield absolute casing vibration signals.

System Compatibility and Alternative Models

• System Compatibility: Mates directly with the 2-pin MIL-C-5015 hermetically sealed connector of the 330500 Velomitor Piezo-velocity Sensor. It bridges signal lines to standard monitor blocks and is mandatory when deploying the 21128 Velocity Transducer Housing.
• Alternative Model: 9571-27 Interconnection Cable.
• Key Differences:

• Conductor Gauge: The 89477-27 uses thicker 18 AWG conductors, whereas the 9571-27 alternative relies on standard 22 AWG wire sizes.
• Connector Configuration: The 89477 features a right-angle two-socket plug that fits the 21128 housing envelope, while the 9571 variant utilizes a straight entry connector prohibited from use inside 21128 housings.

Ordering Information

FAQ

Q1: What is the Bently Nevada 89477-AA cable used for?

A1: It is a Right Angle Interconnect Cable designed for the 330505 Low Frequency Velocity Sensor, featuring a moisture-resistant right angle female connector at the transducer end and ring lugs at the monitor end .

Q2: What are the temperature specifications for this cable?

A2: The 89477-AA interconnect cable operates reliably in temperatures ranging from -29°C to +121°C (-20°F to +250°F) .

Q3: What cable gauge and construction does the 89477 use?

A3: It utilizes shielded 0.963 mm² (18 AWG) cable construction for robust signal transmission in industrial environments .

Q4: What standard lengths are available for the 89477 cable?

A4: Standard available lengths include 015 ft (4.5 m), 032 ft (9.8 m), 064 ft (19.5 m), 112 ft (34.1 m), 125 ft (38.1 m), 150 ft (45.7 m), and 200 ft (61.09 m) .

Q5: Is this cable compatible with the 3500/46M Hydro Monitor?

A5: Yes, when used with the 330505 sensor, the cable connects to the 3500/46M Hydro Monitor, supporting maximum cable lengths with no signal degradation .