Description
Bently Nevada 141378-01 FieldMonitor Power Supply Module
Configured for regulated 24 VDC power distribution in FieldMonitor vibration monitoring systems, the Bently Nevada 141378-01 (141378-01 FieldMonitor Power Supply Module) provides direct physical/electrical execution of AC/DC conversion and stabilized DC rail generation within 1701/05 and 1701/06 terminal base architectures.
Suffix Breakdown & Model Matrix
No validated functional suffix segmentation is defined for this order number.
Hardware Specifications
| Parameter |
Specification |
| Model |
141378-01 |
| Brand |
Bently Nevada |
| Weight |
0.4 kg |
| Dimensions |
45 x 100 x 117 mm |
| Operating Temp |
-10 deg C to +60 deg C |
| Power Consumption |
Input dependent (AC/DC conversion module) |
| Input Voltage |
100–240 VAC or 18–36 VDC |
| Output Voltage |
24 VDC |
| Output Current |
Up to 2.5 A |
| Efficiency |
~88% |
| Ripple & Noise |
<100 mVpp |
| Mounting |
DIN rail |
| Storage Temperature |
-40 deg C to +85 deg C |
| Humidity |
5–95% RH non-condensing |
| Protections |
Overvoltage, thermal overload, short-circuit |
| Indicators |
LED power status |
Power Rail Regulation and Voltage Conditioning Behavior in FieldMonitor Systems
The module operates as a regulated DC power conversion stage within FieldMonitor system backplane architecture. It converts wide-range AC or DC inputs into a stabilized 24 VDC distribution rail used by vibration monitoring and terminal base modules.
Within multi-module rack configurations, output ripple suppression (<100 mVpp) maintains stable supply conditions for downstream signal conditioning electronics. This reduces susceptibility to voltage modulation effects on transducer excitation circuits and analog front-end stages.
From a system-level perspective, the module includes internal protection coordination logic for overvoltage and thermal shutdown conditions. These mechanisms isolate fault propagation from the 24 VDC rail, limiting disturbance coupling into adjacent FieldMonitor modules during transient load events.
Frequently Asked Questions (FAQ)
Q: Can the 141378-01 be hot-swapped during operation?
A: It is not intended for live insertion or removal under load. Input power isolation is required to avoid transient voltage spikes on the 24 VDC rail.
Q: What happens if input polarity is reversed on the DC supply input?
A: Reverse polarity can trigger internal protection or cause functional failure of the conversion stage depending on severity and duration.
Q: Does output current derate at elevated ambient temperature?
A: Thermal protection circuitry may reduce output capability or trigger shutdown when internal temperature exceeds defined limits.
Field Installation Guidelines
-
Install on grounded DIN rail with mechanical locking engaged across full module length
-
Verify correct AC or DC input polarity before energizing the module
-
Maintain separation between input power wiring and low-level sensor signal cabling
-
Ensure enclosure ventilation to prevent thermal accumulation under continuous 2.5 A load
-
Check LED status indicator after power-up to confirm stable 24 VDC output rail formation
