Description
Bently Nevada 135145-01 Position I/O Module
Configured for precision position and differential expansion monitoring in 3500 Series systems, the Bently Nevada 135145-01 (135145-01 Position I/O Module) provides direct electrical interface for Proximitor, Rotary Position Transducer (RPT), and DC LVDT signals.
Suffix Breakdown & Model Matrix
This unit is a fixed single-model configuration; no additional suffix or matrix decomposition applies. It supports up to four input channels with external termination blocks for connection to field sensors.
Hardware Specifications
| Parameter |
Specification |
| Model |
135145-01 |
| Brand |
Bently Nevada |
| Origin |
USA |
| Weight |
0.20 kg |
| Dimensions |
241.3 × 24.4 × 99.1 mm |
| Operating Temp |
-30 to +65 deg C |
| Power Consumption |
7.5 W typical |
| Input Channels |
1–4 configurable channels |
| Accepted Inputs |
Proximitor, RPT, DC LVDT |
| Termination Type |
External terminal blocks |
| Input Voltage Range |
-10 V to +10 V DC |
| Measurement Range |
±5000 mils (±127 mm) typical |
| Accuracy |
±0.5% of full scale |
| Response Time |
<10 ms per channel |
| Rack Compatibility |
3500 Series 14-slot chassis |
| Communication |
Proprietary backplane protocol |
| Compliance |
API 670, CE, UL, CSA |
Eddy-Current Probe and Position Signal Management
The 135145-01 module implements eddy-current probe scaling for precise position monitoring. Gap voltage validation is maintained at -10 VDC targets, ensuring correct sensor excitation. Rotor dynamics signals are captured with <10 ms response per channel, while cross-talk suppression prevents interference between adjacent input channels.
Frequently Asked Questions (FAQ)
Q: Can this module operate with both Proximitor and DC LVDT inputs simultaneously?
A: Yes, the 135145-01 supports mixed input types across its configurable channels with independent scaling.
Q: What is the maximum response time for input channel updates?
A: The module maintains less than 10 ms per channel for all supported input types.
Q: Is the module compatible with 3500/92 communication gateways?
A: Yes, it integrates through the 3500 proprietary backplane and is fully compatible with 3500/92 Ethernet/RS232 gateway modules.
Field Installation Guidelines
-
Install in a 3500 Series rack slot with correct orientation to maintain airflow and mechanical stability.
-
Connect external terminations carefully to avoid loose connections; torque terminal screws to manufacturer specifications.
-
Ensure grounding of the module and shielded cables to prevent EMI affecting measurement accuracy.
-
Maintain routing separation from high-power conductors to reduce interference.
-
Verify input channels are configured per sensor type before system power-up.
