Brand:Bently Nevada PLC Item No.:990-04-90-01-05 Product Origin:USA Product Dimensions:100.1 x 73.9 x 53.3 mm Product Weight:0.43 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Bently Nevada 990-04-70-01-05 is a loop-powered vibration transmitter engineered for reliable monitoring of industrial rotating machinery. It converts mechanical vibration signals into a standardized 4–20 mA output for direct integration into automation and protection systems.
Its integrated design eliminates the need for external signal conditioning modules, reducing system complexity while maintaining stable and accurate vibration measurement performance. It is widely used in OEM machinery applications where long-term reliability and simplified installation are essential.
Technical Specifications
Parameter
Specification
Product Model
990-04-70-01-05
Full-scale Range
0–4 mils pp (0–100 μm pp)
System Length
7.0 m (23.0 ft)
Mounting Type
35 mm DIN rail clips
Agency Approval
CSA / ATEX / ABS (marine optional configuration)
Output Signal
4–20 mA proportional vibration signal
Power Supply
2-wire loop powered
Input Voltage
12–35 VDC
Operating Temperature
-35°C to +85°C
Storage Temperature
-51°C to +100°C
Housing Material
Industrial-grade metal enclosure
Dimensions
100.1 × 73.9 × 53.3 mm
Weight
0.43 kg (0.95 lb)
Applications
The Bently Nevada 990-04-70-01-05 Vibration Transmitter is designed for continuous vibration monitoring of rotating machinery in industrial automation systems where stable signal output and long-term reliability are required.
Typical applications include:
Centrifugal and reciprocating compressors
Industrial pump systems and booster stations
HVAC ventilation and air handling units
Electric motors and drive assemblies
Turbine auxiliary systems
Petrochemical and refinery rotating equipment
Marine and offshore machinery systems
It is especially suitable for OEM installations requiring compact integration and standardized 4–20 mA vibration output for control and protection systems.
Advantages
Integrated vibration sensing and signal conditioning in a compact transmitter design
Direct 4–20 mA output for seamless PLC and DCS integration
Reduced wiring complexity and lower installation cost
Stable long-term signal performance for continuous monitoring
High resistance to industrial electromagnetic interference
OEM-optimized structure for space-constrained installations
Supports predictive maintenance and condition-based monitoring strategies
Reliable operation in harsh industrial environments
Technical FAQs
Q1: What is the output signal type of this transmitter?
It provides a 4–20 mA analog output proportional to vibration amplitude.
Q2: Does it require an external signal conditioner?
No, signal conditioning is fully integrated into the device.
Q3: What machinery is it typically used on?
It is used on pumps, compressors, motors, fans, and other rotating equipment.
Q4: Can it operate in continuous monitoring mode?
Yes, it is designed for continuous vibration trend monitoring.
Q5: Is it compatible with PLC systems?
Yes, it directly interfaces with standard industrial PLC/DCS analog inputs.
Q6: Does it provide waveform-level diagnostics?
No, it focuses on overall vibration amplitude rather than waveform analysis.
Q7: Is it suitable for harsh environments?
Yes, it is designed for industrial environments with vibration, humidity, and temperature variations.
Q8: What installation configuration does it support?
It supports DIN rail or machine-mounted installation depending on system setup.
Q9: Is it used in predictive maintenance systems?
Yes, it is widely used in condition-based monitoring systems.
Q10: Does it require frequent recalibration?
No frequent recalibration is required under normal operating conditions.
