Description
Technical Specifications Table
| Parameter | Specification |
| Model Number | Bently Nevada 136711-01 |
| Manufacturer | Bently Nevada (Baker Hughes) |
| Product Type | Seismic Velocity Sensor |
| Measurement Range | 0-25.4 mm/s (1 in/s) peak |
| Frequency Response | 10 Hz to 1 kHz (±3 dB) |
| Sensitivity | 200 mV/mm/s (5.0 mV/mil/s) |
| Output Signal | 2-wire, 4-20 mA |
| Power Supply | 18-30 VDC loop powered |
| Housing Material | 316 Stainless Steel |
| Mounting | M10 x 1.5 threaded stud |
| Operating Temperature | -40°C to +120°C (-40°F to +248°F) |
| Environmental Rating | IP67 |
| Shock Resistance | 100 g, 11 ms half-sine |
| Compliance Standards | API 670, ISO 10816 |
BENTLY 126599-01
Product Overview
The Bently Nevada 136711-01 is a rugged industrial velocity transducer designed for continuous vibration monitoring of rotating machinery in demanding environments. This seismic sensor provides reliable velocity measurements for condition-based maintenance programs, enabling early detection of mechanical faults before catastrophic failure occurs.
As part of Bently Nevada’s comprehensive machinery protection portfolio, the 136711-01 features all-welded stainless steel construction with hermetic sealing for maximum durability. Its wide operating temperature range and IP67 environmental rating make it suitable for harsh applications in power generation, oil & gas, and heavy industry.
Key Features and Benefits
Precision Measurement:
Wide frequency response (10 Hz to 1 kHz)
High sensitivity (200 mV/mm/s) for accurate diagnostics
Excellent linearity (±5% typical)
Stable 4-20 mA output for direct system integration
Robust Construction:
316 stainless steel housing resists corrosion
Hermetically sealed against moisture ingress
Withstands 100 g mechanical shock
Vibration resistant to 20 g RMS
Installation Advantages:
Standard M10 mounting thread
Compact, low-profile design
Integral cable with strain relief
Maintenance-free operation
Industrial Applications
Power Generation:
Steam turbine bearing monitoring
Generator vibration analysis
Cooling fan condition monitoring
Oil & Gas:
Centrifugal compressor protection
Pump vibration monitoring
Gas turbine auxiliary systems
Heavy Industry:
Large motor bearing analysis
Gearbox vibration monitoring
Rolling mill equipment protection
BENTLY 126599-01
Installation Guidelines
Mounting Surface Preparation:
Clean, flat surface (Ra < 3.2 μm)
Degrease mounting area
Apply light thread lubricant
Sensor Installation:
Hand-tighten plus 1/4 turn with wrench
Recommended torque: 20 Nm (±10%)
Avoid over-tightening
Cable Routing:
Use proper cable glands
Maintain minimum bend radius
Secure at regular intervals
Electrical Connections:
Verify proper polarity
Check power supply (18-30 VDC)
Confirm 4-20 mA output range
Maintenance Procedures
Quarterly:
Visual inspection of sensor and cable
Verify mounting integrity
Check for corrosion or damage
Annually:
Sensitivity verification
Frequency response check
Cable integrity test
Troubleshooting:
No output: Check power and connections
Erratic signal: Inspect for cable damage
Drifting baseline: Verify mounting
Noise issues: Confirm proper grounding
Warranty and Support
Coverage:
24-month limited warranty
Covers defects in materials/workmanship
Excludes physical damage or misuse
Support Services:
Global technical assistance
Application engineering
Repair and recalibration
Spare parts availability
Documentation:
Installation manuals
Technical bulletins
Safety guidelines
Certificates of conformance
The Bently Nevada 136711-01 provides reliable vibration monitoring for predictive maintenance programs, helping to prevent unexpected machinery failures in critical industrial applications.
