Description
Technical Specifications
- Product Model: 3500/42M 140734‑02
- Brand: Bently Nevada
- Warranty: One Year
- Input Voltage: 24 VDC ±20%, max 400 mA, works with 3500 rack redundant power supply
- Operating Temperature: 0 °C ~ +65 °C (32 °F ~ 149 °F)
- Storage Temperature: -40 °C ~ +85 °C (-40 °F ~ 185 °F)
- Response Time: Configurable filter response; direct filter ‑3 dB at 1.2 Hz
- Protection Class: Designed for rack‑mount industrial cabinet installation
- Accuracy Class: ±1 % full‑scale maximum for standard measurements
- Output Frequency: Machine speed range 60 cpm‑60 000 cpm; seismic 0.5‑1000 Hz, proximity 0.1‑10 000 Hz
- Rated Current: Max 400 mA @ 24 VDC
- Channels: 4 programmable monitoring channels, channel‑pair configuration
- Input Impedance: 10 kΩ standard I/O
- Analog Output: Isolated 4‑20 mA recorder outputs per channel
- Humidity: 5‑95 % non‑condensing
- Compliance: API 670, IEC 61010‑1, IEC 61326, SIL 2 capable within 3500 systemBaker Hugh…
Product Overview
The Bently Nevada 3500/42M (140734‑02) is a four‑channel Proximitor / Seismic monitor card for the 3500 machinery protection rack system. It accepts signals from eddy‑current proximity probes, velocity transducers and accelerometers to perform critical machinery protection measurements including radial vibration, thrust position, differential expansion, eccentricity, REBAM, acceleration and shaft absolute monitoring.
Channels are programmed in pairs using 3500 Rack Configuration Software. Each channel supports user‑defined Alert and Danger alarm setpoints. Front‑panel BNC buffered outputs allow external signal observation without breaking field wiring. Isolated 4‑20 mA analog outputs deliver processed machine data to DCS / SCADA hosts for trending and historian logging. This module fulfills API 670 machinery protection requirements for rotating equipment, widely deployed for safety‑critical turbo‑machinery protection.
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