Bently Nevada 1701/15 Vibration Monitor

The Bently Nevada 1701/15 is a rugged dual-channel vibration monitor designed for continuous machinery protection in industrial environments. Part of Bently Nevada’s 1700 series, this standalone monitor provides reliable vibration measurement and alarming for pumps, fans, motors, and other rotating equipment where basic machinery protection is required.

Featuring NEMA 4X/IP66-rated enclosure, the 1701/15 withstands harsh plant conditions including dust, moisture, and corrosive atmospheres. Its dual-channel architecture allows simultaneous monitoring of drive-end and non-drive-end bearings, while the integrated tachometer input enables speed-related vibration analysis.

Detailed Parameter Table

Parameter Name	Parameter Value
Product Model	Bently Nevada 1701/15
Manufacturer	Bently Nevada (Baker Hughes)
Product Category	Vibration Monitor
Input Channels	2 vibration + 1 tachometer
Measurement Range	0-25.4 mm/s pk (velocity)
Frequency Range	10 Hz to 1 kHz
Alarm Relays	4 programmable (SPDT)
Power Supply	90-250V AC/18-30V DC
Display	3-digit LED with status LEDs
Operating Temperature	-20°C to +65°C
Housing	NEMA 4X (IP66)
Dimensions	144×144×165 mm
Certifications	ATEX, IECEx, CSA, UL

Core Advantages and Technical Highlights

Reliable machinery protection:

The Bently Nevada 1701/15 provides velocity-based vibration monitoring (0-25.4 mm/s range) with four configurable alarm relays per channel. The 10 Hz to 1 kHz frequency range covers most common machinery faults including imbalance, misalignment, and rolling element bearing defects.

Robust industrial design:

Housed in a heavy-gauge aluminum enclosure, the monitor resists corrosion and physical damage. The NEMA 4X/IP66 rating ensures reliable operation in washdown areas and outdoor installations. -20°C to +65°C operating range makes it suitable for most industrial environments.

Simple operation:

The front-panel LED display shows real-time vibration levels, while status LEDs indicate power, alarms, and system faults. DIN rail or surface mounting options provide installation flexibility. The universal power supply accepts both AC and DC inputs.

Advanced functionality:

Integrated tachometer input (0.5-15,000 RPM) enables synchronous vibration analysis. Programmable alarm delays prevent nuisance tripping during startup/shutdown. The 4-20mA output per channel allows integration with plant DCS/PLC systems.

Typical Application Scenarios

Industrial pump monitoring:

The Bently Nevada 1701/15 protects critical process pumps in chemical plants, detecting bearing wear and impeller damage through continuous vibration monitoring. The NEMA 4X enclosure withstands washdown cleaning.

HVAC fan protection:

Monitoring large ventilation fans, the monitor’s dual-channel design tracks both drive-end and fan-end bearings. Programmable alarms alert to imbalance or belt drive issues before failure occurs.

Motor condition monitoring:

Installed on critical motors, the 1701/15 detects developing faults like eccentric rotors or winding problems. The 4-20mA outputs feed data to plant control systems for trending.

Compressor safeguarding:

In industrial air systems, the monitor’s tachometer input enables vibration analysis synchronized to compressor speed, identifying speed-dependent vibration components.

Installation and Commissioning

Installation preparation:

Select a location protected from direct water spray and excessive vibration. Ensure proper grounding and verify power supply matches plant voltage. Have vibration sensors and cables prepared per Bently Nevada guidelines.

Commissioning steps:

Mount unit securely (DIN rail or surface)

Connect vibration sensors and tachometer

Apply power and verify display operation

Set alarm thresholds per equipment specs

Test relay operation and 4-20mA outputs

Document all settings in maintenance records

Maintenance recommendations:

Monthly inspection of enclosure integrity and cable connections. Quarterly verification of alarm setpoints. Annual calibration check against reference sensor. Keep display window clean for visibility. Maintain spare unit for critical applications.

Service and Guarantee Commitment

Baker Hughes provides:

24-month standard warranty

Global technical support network

On-site commissioning assistance

Repair and recalibration services

Lifetime product support

The Bently Nevada 1701/15 is backed by the company’s 60+ years of machinery diagnostics expertise, with comprehensive documentation and training available. All units ship with calibration certificates and hazardous area certifications where applicable.