Products Description
The Bently Nevada 135489-03 is a four-channel barrier I/O module designed for the 3500/70M Recip Impulse/Velocity Monitor. It provides connections for four Velomitor sensors and incorporates internal safety barriers with internal terminations.
Installed in the rear slot of a 3500 rack, the module transfers field signals to the associated 3500/70M monitor for processing and machinery protection. Its integrated barrier arrangement supports installations where intrinsically safe sensor circuits are required. The 135489-03 is an interface module and must operate with the corresponding 3500/70M monitor; it is not a standalone monitoring device.
Key Features
- Internal field wiring terminations
- Occupies one full-height rear rack slot
- Supports vibration monitoring on reciprocating machinery
- Suitable for approved hazardous-area installations when installed according to the applicable Bently Nevada drawings
- Provides a compact alternative to separate external barriers
Technical Specifications
| Parameter | Specification |
|---|---|
| Part number | 135489-03 |
| Product type | Internal barrier I/O module |
| Compatible monitor | Bently Nevada 3500/70M Recip Impulse/Velocity Monitor |
| Sensor configuration | Four Velomitor sensors |
| Termination type | Internal termination |
| Barrier type | Integrated internal barriers |
| Rack position | Rear of the 3500 rack |
| Rack requirement | One full-height rear slot |
| Dimensions | 241.3 × 24.4 × 163.1 mm |
| Weight | Approximately 0.46 kg |
| Operating temperature | 0°C to +65°C |
| Storage temperature | −40°C to +85°C |
| Humidity | Up to 95%, non-condensing |
| Barrier maximum voltage | 27.25 V |
| Barrier maximum current | 91.8 mA |
| Minimum resistance | 297 Ω |
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FAQ
1. What is the Bently Nevada 135489-03?
2. Can the 135489-03 operate as a standalone monitor?
3. How many sensors can be connected to this module?
4. Where is the 135489-03 installed?
5. Is an external termination block required?
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