Bently Nevada 149744 Trendmaster Dynamic Scanning Module The Bently Nevada 149744, also cataloged as the 149744 Trendmaster Dynamic Scanning Module,...
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The Bently Nevada 149744, also cataloged as the 149744 Trendmaster Dynamic Scanning Module, operates as a dedicated hardware component for dynamic vibration data acquisition within the Trendmaster DSM and System 1 software network.
Hardware Specifications
Parameter
Specification
Model
149744
Brand
Bently Nevada
Product Type
Trendmaster Dynamic Scanning Module
Origin
USA
Weight
DSM rack without input cards: 0.76 kg; Input card: 0.2 kg; Power supply: 0.5 kg
Dimensions
DIN rail mounting requires 26.7 cm rail length; Bulkhead mounting requires 4 #8 screws
Operating Temp
-20 deg C to +65 deg C
Storage Temp
-40 deg C to +85 deg C
Operating Humidity
95% non-condensing; 100% condensing in weatherproof housing with power applied
Power Consumption
18 watts maximum
Input Voltage
20 to 30 VDC
Fuse Rating
1 amp slow-blow
Rack Configuration
5 card slots
Communication Interface
Copper or fiber Ethernet communication card
Input Card Support
TIM input cards connected to Bently Nevada TIM and proTIM modules
TIM Line Capacity
2 TIM lines per input card, up to 254 channels per TIM line
Vibration Resistance
2 g from 10 to 55 Hz; 10 g from 55 to 500 Hz
Shock Resistance
6-inch drop to plywood surface when installed in terminal base
Rotor Dynamics Data Processing and Trendmaster Interface
The 149744 Trendmaster Dynamic Scanning Module processes vibration acquisition signals from TIM and proTIM modules through dedicated TIM input cards. Each input card provides two independent TIM communication lines, and each line supports up to 254 monitoring channels.
Moreover, the onboard processing architecture allows the DSM to calculate processed variables locally before transmission to the host computer. Therefore, the system reduces network traffic requirements while maintaining access to vibration parameters, waveforms, and spectrum data when raw acquisition data is required.
The DSM platform supports Bently Nevada mechanical monitoring functions, including eddy-current probe scaling, rotor dynamics analysis, and vibration signal conditioning. In addition, local processing improves signal handling efficiency by minimizing unnecessary data transfer across the Ethernet communication network.
Frequently Asked Questions
Q: How many TIM channels can one 149744 DSM input card support? A: Each TIM input card provides two TIM lines, and each TIM line supports up to 254 channels connected through compatible TIM and proTIM modules.
Q: Does the 149744 DSM return both processed variables and raw vibration data? A: Yes. The module can transmit locally processed variables to reduce bandwidth usage and can also provide waveforms and spectrum data when the host system requires raw information.
Q: What communication cards are supported by the DSM rack? A: The first rack slot accepts either copper Ethernet or fiber Ethernet communication cards for connection with System 1 software.
Field Installation Guidelines
Install the 149744 DSM rack on a suitable 35 mm DIN rail or bulkhead mounting surface according to the mechanical installation requirements.
Ensure the 20 to 30 VDC power supply connection is routed separately from high-voltage switching circuits and high-current motor cables. Use proper grounding practices for communication shields and signal reference connections.
Connect TIM input wiring with attention to cable routing and separation from electromagnetic interference sources. Verify TIM and proTIM module addressing before system commissioning.
Maintain environmental protection when installing the DSM in outdoor or high-humidity locations. The weatherproof housing configuration requires power application conditions for fully condensing humidity environments.
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