BENTLY 85515-02

Description

Detailed parameter table

BENTLY 85515-02

Product introduction

The Bently Nevada 85515-02 is a compact, dual-output vibration and temperature transmitter, designed for continuous monitoring of rotating machinery in industrial environments. It combines a piezoelectric accelerometer for vibration measurement with an integrated temperature sensor, providing a single, space-saving solution for capturing critical machinery health parameters.

Unlike traditional proximity transducers like the 330851-02-000-060-10-00-00, the 85515-02 is a self-contained unit that requires no external driver, simplifying installation. Its 4-20 mA outputs for both vibration (0-50 mm/s RMS) and temperature (-40°C to +120°C) make it compatible with a wide range of monitoring systems, including the 3500 series via the 3500/42M 140734-02 signal conditioner or directly with PLCs and DCS systems.

Powered by a 24V DC supply (typically from the 3500/15 127610-01), the 85515-02 is ideal for applications where space is limited, such as small motors, pumps, and fans. Its rugged IP67-rated housing ensures reliable operation in harsh conditions, from dusty manufacturing floors to wet industrial washdown areas, while its compatibility with the 3500/05-01-01-00-00-01 rack interface module enables seamless integration into larger machinery protection networks.

Core advantages and technical highlights

Dual-parameter monitoring: The 85515-02 simultaneously measures vibration (10 Hz to 1000 Hz) and temperature, eliminating the need for separate sensors. This integration provides a more comprehensive view of machinery health—for example, correlating increased vibration with rising bearing temperature to identify early-stage lubrication failure, a capability that would require two separate devices with traditional setups.

Simplified installation: As a self-contained transmitter, the 85515-02 requires only a power supply and signal cable, unlike proximity systems that need probes, cables, and drivers. Its M18 x 1.5 threaded mount or optional magnetic base allows quick installation on machinery surfaces, reducing setup time by up to 50% compared to installing a 330851-02-000-060-10-00-00 transducer system.

Rugged environmental tolerance: With an IP67 rating and operating temperature range of -40°C to +120°C, the 85515-02 thrives in extreme conditions. It resists water immersion (up to 1m for 30 minutes), dust, and chemical exposure, making it suitable for food processing plants (washdown areas), outdoor pump stations, and chemical manufacturing facilities where traditional sensors may fail.

Seamless 3500 series integration: The transmitter’s 4-20 mA outputs connect directly to the 3500/42M 140734-02 signal conditioner, which processes the signals for analysis by the 3500/33-01-00 module. Data is then transmitted via the 3500/05-01-01-00-00-01 to 170180-01-00 software, enabling trend analysis and alarm management. This integration ensures the 85515-02 fits into existing 3500 ecosystems without requiring protocol converters.

Typical application scenarios

In a wastewater treatment plant, the 85515-02 is installed on a submersible pump motor, monitoring vibration and temperature in a 潮湿，corrosive environment. Its IP67 rating prevents water damage, while the dual outputs send data to a 3500/42M 140734-02 module. When vibration exceeds 30 mm/s RMS and temperature rises above 90°C, the 3500/33-01-00 triggers an alarm, relayed via the 3500/05-01-01-00-00-01 to the plant SCADA system, prompting maintenance before motor burnout.

At a food and beverage facility, the 85515-02 monitors a conveyor belt motor in a washdown area. Its stainless steel housing resists caustic cleaning agents, and the magnetic base allows easy removal during deep cleaning. Vibration and temperature data are transmitted to a 3500/62 module, which activates a warning light if values deviate from setpoints—preventing unplanned downtime during production runs.

In a data center, the 85515-02 is mounted on critical cooling system pumps. It sends temperature and vibration data directly to a PLC via 4-20 mA, with a parallel connection to a 3500/42M 140734-02 for historical analysis in 170180-01-00 software. The 3500/05-01-01-00-00-01’s gigabit Ethernet ensures that trends are available in real time, allowing predictive maintenance to avoid cooling failures that could disrupt server operations.

BENTLY 85515-02

Related model recommendations

3500/05-01-01-00-00-01: Rack interface module that transmits 85515-02 data to upstream systems via high-speed Ethernet.

3500/42M 140734-02: Signal conditioner that processes the 85515-02’s 4-20 mA outputs for analysis by the 3500 system.

3500/15 127610-01: Redundant power supply ensuring reliable operation of the 85515-02 in critical applications.

3500/33-01-00: Vibration monitoring module that uses 85515-02 data to detect machinery faults and trigger alarms.

170180-01-00 software: Platform for trending 85515-02 vibration and temperature data over time.

330851-02-000-060-10-00-00: Proximity transducer for applications requiring shaft displacement measurements alongside the 85515-02’s vibration/temperature data.

85515-02-Cable: Shielded 5m cable recommended for connecting the 85515-02 to monitoring systems, minimizing noise.

Installation, commissioning and maintenance instructions

Installation preparation: Mount the 85515-02 using the M18 x 1.5 thread (torque to 25 Nm) or magnetic base, ensuring direct contact with the machinery surface (clean and degrease the area first). Connect the 85515-02-Cable to the sensor and route it to the monitoring system, avoiding high-voltage lines. Power the unit with 24V DC from the 3500/15 127610-01, ensuring correct polarity to prevent damage.

Calibration and setup: Use 170180-01-00 software (via the 3500/42M 140734-02) to configure vibration and temperature ranges. Calibrate annually with a vibration shaker and temperature bath, verifying that 0 mm/s RMS = 4 mA, 50 mm/s RMS = 20 mA, -40°C = 4 mA, and +120°C = 20 mA. Record calibration data in the system log for audit purposes.

Maintenance suggestions: Inspect the 85515-02 quarterly for loose connections or physical damage. Clean the sensor surface with a soft cloth to remove debris that could affect measurements. Check cable integrity for cuts or abrasions, replacing if damaged. For magnetic base installations, verify that the magnet remains securely attached—re-tighten or replace if necessary. In washdown areas, ensure the cable entry gland remains tight to maintain IP67 integrity.

Service and guarantee commitment

The 85515-02 is backed by a 24-month warranty covering manufacturing defects, including sensor drift, output signal failures, or housing integrity issues. During this period, Bently Nevada provides free replacement of defective units and technical support for integration with the 3500/05-01-01-00-00-01 and other 3500 series modules.

Our global service team offers 24/7 assistance for installation guidance and calibration verification, with remote diagnostics available via connected 3500 series systems. Extended warranty options (up to 4 years) include annual calibration checks and priority access to replacement parts. Built on Bently Nevada’s expertise in industrial sensing, the 85515-02 is guaranteed to deliver accurate, reliable measurements, ensuring critical machinery is monitored with minimal installation and maintenance effort.