Bently Nevada Rod Position Monitor Module 3500/72M
$ 6,500
Part No: 3500/72M
• Four‑channel monitor for reciprocating compressor rod position, drop, and hyper-compressor measurement
• Dual programming pairs enable flexible function assignment
• Buffered outputs and programmable alarms for machinery safety
• Rugged design for continuous operation in industrial protection racks
Description
Bently Nevada Rod Position Monitor Module 3500/72Mc
The Bently Nevada 3500/72M is a four‑channel Rod Position Monitor in the 3500 Series machinery protection rack. It accepts proximity transducer inputs to measure parameters like rod position, rod drop, and hyper-compressor status, comparing them to programmable ALERT and DANGER thresholds for reciprocating compressor protection.
| Specification | Detail |
|---|---|
| Product Type | Rod Position Monitor Module |
| Series | Bently Nevada 3500 Series |
| Channels | 4 proximity transducer inputs |
| Measurable Modes | Rod Position, Rod Drop, Hyper-Compressor (up to two functions at once) |
| Channel Pair Programming | Channels 1‑2 and 3‑4 programmable independently |
| Input Impedance | 10 kΩ per input |
| Sensitivity (Scale Factor) | 3.94 mV/µm or 7.87 mV/µm selectable |
| Power Consumption | Approx. 7.7 Watts |
| Front Panel LEDs | OK (system health), TX/RX (rack communication), Bypass mode indicator |
| Buffered Coax Outputs | Front-panel coax connectors, short-circuit protected, 550 Ω outputs |
| Transducer Supply Voltage | −24 VDC |
| Physical Dimensions (Main Module) | ~241.3 mm × 24.4 mm × 241.8 mm |
| Physical Dimensions (I/O Module) | ~241.3 mm × 24.4 mm × 99.1 mm |
| Weight (Main / I/O Module) | ~0.91 kg / ~0.20 kg |
| Alarm Setpoints | ALERT for each measured variable; DANGER for up to two variables |
| Environmental Range | –30 °C to +65 °C operating; –40 °C to +85 °C storage; ≤95 % RH |
| Certifications | API 618 compliant for reciprocating compressor applications |
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