Excellent PLC
Product Overview
The Bently Nevada 81544-01 XDUCR I/O and Recording Terminals are part of the advanced signal interfacing components within Bently Nevada’s machinery protection and monitoring ecosystem. These terminals are designed specifically for connecting transducer (XDUCR) signals—such as those from proximity probes, velocity sensors, and accelerometers—to data acquisition or condition monitoring systems.
This model 81544-01 is a non-relay version, focusing purely on input/output and signal recording functionality, making it ideal for applications that do not require alarm relays or trip contacts. The module ensures low-noise signal handling, stable connections, and efficient wiring from field sensors to the main monitoring system or recording equipment.
Key Features
-
Provides clean and shielded I/O interface for transducer signals
-
Supports connection of Bently Nevada proximity probes and velocity sensors
-
Designed for signal conditioning and accurate data transfer to monitoring systems
-
No relays included — intended purely for signal interface and recording
-
Terminal-style connection simplifies field wiring
-
Compatible with many Bently Nevada transducer models
-
Optimized for stable signal quality and low EMI/RFI interference
-
Supports direct input to recorders, monitors, and DAQ systems
-
DIN-rail mountable for easy installation in control panels
-
Passive design—no active electronics requiring power input
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | XDUCR I/O and Recording Terminals (No Relay Modules) |
| Model Number | 81544-01 |
| Function | Signal wiring interface between transducers and monitors |
| Supported Devices | Proximity probes, velocity sensors, accelerometers |
| Relay Support | None (non-relay version) |
| Signal Type | Dynamic and DC bias voltage from transducers |
| Connection Type | Terminal block screw connections |
| Shielding | Signal shielding supported to minimize noise |
| Mounting | DIN rail (standard industrial control panel mount) |
| Construction Material | Industrial-grade plastic and copper alloy terminals |
| Power Requirement | None (passive module) |
| Operating Temperature | -30°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Dimensions | 160 x 160 x 120 mm |
| Weight | 0.8 kg |
| Certifications | CE, RoHS compliant |
Industry Applications
The Bently Nevada 81544-01 I/O Terminals are used wherever transducer signals need to be routed cleanly and efficiently from field devices to central monitoring systems:
-
Oil & Gas: Routing of proximity probe signals from rotating equipment to Bently Nevada monitors
-
Power Generation: Turbine and generator shaft vibration signal wiring
-
Petrochemical: Integration of dynamic signals into control or condition monitoring systems
-
Pulp & Paper: Signal routing from refiner and roll sensors to recording systems
-
Marine and Offshore: Compact installation for signal management in confined spaces
-
OEMs and Panel Builders: Simplified and shielded wiring for machinery OEM packages
Product Advantages
-
Non-Relay Design: Ideal for signal-only applications—reduced cost and complexity
-
Clean Signal Routing: Maintains integrity of dynamic signals over short distances
-
Flexible Installation: Fits into existing enclosures or monitoring cabinets
-
Compatible with Standard Transducers: Works with most Bently Nevada sensors
-
Passive Interface: No need for external power or maintenance
-
Reduced Electrical Noise: Shielded terminals reduce EMI/RFI for cleaner signals
-
Simple Maintenance: Screw terminals make field service and rewiring straightforward
-
Space-Efficient: Compact form factor suits high-density installations
Frequently Asked Questions (FAQ)
1. What is the function of the 81544-01 module?
It serves as a passive I/O terminal interface for connecting transducer signals to monitors or recorders.
2. Does it include relays or alarm outputs?
No, this model is strictly for I/O and signal recording—it does not include relay outputs.
3. What types of transducers can be connected?
Proximity probes, accelerometers, and velocity sensors from Bently Nevada and other vendors.
4. Is external power required?
No, the module is passive and does not require external power.
5. Can it be mounted on a DIN rail?
Yes, it is DIN rail mountable for easy integration in control panels.
6. Is the signal shielded?
Yes, terminals support shielded signal wiring to reduce electrical noise.
7. What systems is it compatible with?
Any monitoring or recording system that accepts raw transducer input.
8. Is this suitable for hazardous environments?
The module itself does not include intrinsic safety features; use with certified barriers where required.
9. Can I use this module to interface directly with a PLC?
It depends on the signal conditioning needs—typically it’s routed to monitors or intermediate conditioning modules.
10. What is the difference between this and a relay module?
Relay modules provide discrete output alarms or trips; this unit is strictly for signal routing and recording.
Related Bently Nevada I/O and Signal Modules
| Model | Description |
|---|---|
| 81544-02 | XDUCR I/O Terminals with Relay Outputs |
| 9200-06-01-00-00 | Proximitor Terminal Strip for 3300 XL Sensors |
| 125840-01 | 3300 XL Power Supply/Terminal Strip Module |
| 330180-91-05 | 3300 XL Proximitor Sensor |
| 330106-05-30-10-02-00 | 3300 XL 8 mm Proximity Probe |
| 133442-01 | Barrier Module for IS installations |
Popular Bently Nevada System Components
| Model | Description |
|---|---|
| 3500/40M 176449-01 | Proximitor Monitor Module for shaft vibration |
| 3500/15 127610-01 | Power Supply Module for 3500 rack |
| 3500/65 172109-01 | 16-Channel Temperature Monitor |
| 3500/92 136180-01 | Communication Gateway Module |
| 3500/93 135799-01 | Display Interface Module |
| 330104-00-05-10-02-00 | 3300 XL 8 mm Proximity Probe |
