Brand:Bently Nevada PLC Item No.:990-12-XX-01-00 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 990-12-XX-01-00 (108M8677-01) is a loop-powered vibration transmitter designed for OEM and industrial machinery protection systems. It converts proximity probe signals into a stable 4–20 mA output, enabling seamless integration into automation and condition monitoring platforms.
It is commonly deployed in turbines, compressors, pumps, and other critical rotating equipment where continuous vibration measurement is required for predictive maintenance and operational safety.
Technical Specifications
Parameter
Value
Model
990-12-XX-01-00
Part Number
108M8677-01
Product Type
990 Vibration Transmitter
Input Type
3300 NSv Proximity Probe
Output Signal
4–20 mA
Supply Voltage
+12 to +35 VDC
Operating Temperature
-40°C to +85°C
Frequency Response
5 Hz – 6 kHz
Accuracy
±1.5% full scale
Mounting Type
DIN rail / bulkhead
Dimensions
100.1 × 73.9 × 53.3 mm
Weight
0.43 kg (0.95 lb / 0.95 lb ≈ 0.95 lb)
Recommended Related Models
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Bently Nevada 990-10-70-01-00
Bently Nevada 3300 NSv Proximity Probe System
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Applications
The Bently Nevada 990-12-XX-01-00 108M8677-01 990 Vibration Transmitter Module is designed for continuous vibration monitoring of rotating machinery in industrial automation systems, delivering stable 4–20 mA output for protection and condition monitoring.
Typical applications include:
Gas turbine condition monitoring systems
Steam turbine vibration protection and diagnostics
Centrifugal compressor performance monitoring
Industrial pump cavitation and imbalance detection
Electric motor bearing health monitoring
Refinery rotating equipment protection systems
Power generation auxiliary machinery monitoring
Heavy-duty HVAC mechanical systems
Advantages
Integrated signal conditioning reduces external wiring and module complexity
Stable 4–20 mA output for direct PLC/DCS integration
High resistance to vibration, humidity, and industrial temperature variations
Compatible with Bently Nevada 3300 NSv proximity probe systems
Compact OEM design for installation in tight control cabinet spaces
Built-in NOT OK diagnostic function for fault detection
Long operational life with low maintenance requirements
Designed for continuous-duty industrial monitoring environments
Technical FAQs
Q1: What probe system is compatible with this transmitter?
A1: It is compatible with Bently Nevada 3300 NSv proximity probe systems.
Q2: Does it require external signal conditioning?
A2: No, it has fully integrated signal conditioning inside the transmitter.
Q3: What output signal does it provide?
A3: It provides a standard 4–20 mA proportional vibration output signal.
Q4: Is it suitable for turbine applications?
A4: Yes, it is widely used in turbine, compressor, and rotating machinery systems.
Q5: Can it operate continuously?
A5: Yes, it is designed for 24/7 industrial operation.
Q6: Does it support direct PLC connection?
A6: Yes, it connects directly to PLC/DCS systems via 4–20 mA loop.
Q7: Does it include fault detection?
A7: Yes, it includes NOT OK signal and diagnostic monitoring functions.
Q8: Is calibration required in the field?
A8: No, it is factory calibrated for long-term stability.
Q9: Can it handle harsh environments?
A9: Yes, it is built for high vibration, humidity, and industrial temperature conditions.
Q10: Is it suitable for safety-critical systems?
A10: Yes, it is commonly used in machinery protection and monitoring applications.
