Product Core Brief
- Model: 170180-01-00
- Brand: Bently Nevada (Baker Hughes)
- Series: FieldMonitor Distributed Condition Monitoring Platform
- Core Function: Two-channel remote signal buffer that accepts conditioned analog outputs from external Proximitors, Velomitors, and piezoelectric accelerometers for near-machine vibration data collection
- Product Type: DIN rail mount field I/O module
- Key Specs: 2 isolated analog input channels | 0 to -Vt signal range | ATEX II 3G Ex nA [L] IIC T4 certified
- Condition: New Original (New Surplus), non-discontinued OEM active part
Key Technical Specifications
| Parameter | Value |
|---|---|
| Input Channel Count | 2 fully isolated analog channels (CH A / CH B) |
| Supported Input Signals | Conditioned 0 to -Vt output from external seismic/Proximitor hardware; cannot drive raw eddy-current probes |
| Frequency Response | 5 Hz to 25 kHz, ±5% amplitude flatness |
| No-load Channel Current Draw | Max 2.0 mA per channel |
| Hardware Overcurrent Limit | 33.6 mA minimum, 37.6 mA maximum at 25°C |
| Communication Interface | Rear DB9 RS485 multi-drop bus for FieldMonitor host communication |
| Mount Standard | 35 mm DIN rail integrated clip mount |
| Operating Temperature | -34°C to +85°C continuous; storage -40°C to +85°C |
| Humidity Tolerance | 100% condensing (non-submerged) with sealed terminal covers installed |
| Physical Dimensions | 105.3 mm H × 126.9 mm W × 21.6 mm D |
| Unit Weight | 277 g (0.61 lb) |
| Shock/Vibration Rating | 30 g half-sine shock; 5–2000 Hz continuous vibration resistance |
| Hazardous Approvals | ATEX II 3G Ex nA [L] IIC T4, Class I Div 2 North American certification |
Product Introduction
This unit is a distributed field I/O component built to shorten long shielded transducer cable runs on pump, fan, and compressor fleets. It buffers vibration signals at the machine enclosure to reduce EMI noise that creates false alarm triggers in centralized monitoring setups.
The device eliminates the cost of long high-grade coaxial cabling required for 3500 rack installations. It only forwards pre-conditioned vibration waveforms to the FieldMonitor host via RS485 and carries built-in hazardous zone certification to skip separate explosion-proof junction boxes in refinery and offshore cabinets.
Firmware/Software Versions & Upgrade Notes
Minimum compatible host firmware revision: FieldMonitor Host v4.1.0. All matching I/O modules must run identical firmware builds to avoid RS485 bus packet loss and channel fault false positives.Downgrades below v4.1.0 remove high-frequency bearing fault filtering logic; test all sensor channels post-downgrade if older host hardware is deployed.Firmware flashes over the rear DB9 serial port via Bently System 1 predictive maintenance software. Always back up host channel mapping before initiating an update to prevent rework of transducer assignments.
Frequently Asked Questions (FAQ)
- Is hot-swap operation safe while the FieldMonitor host remains powered?Yes, the DIN rail clip design allows removal without full system shutdown. The host will flag the two associated channels as faulted temporarily until the replacement unit completes its RS485 handshake. Sealed terminal covers must stay closed during hot-swap in classified hazardous enclosures to retain ATEX certification.
- Is this part obsolescent, and are direct drop-in upgrades available?The part remains an active OEM catalog item with no scheduled end-of-life date. The only cross-compatible variant is 170180-05-00, which adds integrated -18 Vdc Proximitor power supplies; it is not a direct plug-and-play swap and requires host channel configuration edits.
- Will stored channel mapping or sensor sensitivity settings erase when swapping the module?No, all transducer scaling and channel assignments live on the central FieldMonitor host controller, not the module itself. Swapping the hardware only requires a brief bus re-sync; no full configuration rebuild is necessary after replacement.
- What warranty terms separate New Surplus inventory from refurbished alternatives?New Surplus stock carries a 12-month functional warranty covering all signal conditioning, RS485 transceiver, and overcurrent protection circuits. Refurbished units typically offer 3–6 month limited coverage and carry hidden risks of aged internal electrolytic capacitors, untested channel isolation, and undocumented prior field failure history that lead to unplanned process downtime.
- Why does New Surplus pricing sit higher than generic refurbished listings?All New Surplus inventory passes a standardized QC workflow: incoming serial traceability cross-check against OEM production logs, 24-hour continuous thermal load bench testing, 500 V megger insulation testing to verify >10 MΩ channel-to-ground isolation, full firmware backup, and anti-static foam packaging. Refurbished lots skip this multi-step validation and carry higher long-term operational risk for critical balance-of-plant monitoring points.
- Can I wire raw 3300 XL proximity probes directly to the input terminals?No, the unit lacks the -24 Vdc high-frequency oscillator required to drive eddy-current probe coils. It only accepts the analog voltage output signal from standalone external Proximitor hardware. Verify with the OEM datasheet before modifying field wiring to avoid permanent channel damage.
- Does the unit store vibration waveforms or historical trending data locally?No, all spectrum snapshots, peak amplitude logs, and fault event timestamps are captured and retained exclusively by the FieldMonitor host controller. The device acts solely as a passive signal buffer with no on-board data storage memory.
