

Bently Nevada 3500/62 163179-03 Process Variable Monitor
The Bently Nevada 163179-03 is a monitor module for the Bently Nevada 3500 Series machinery protection platform. Manufacturer: Bently Nevada | Series: 3500 | Input Signal: -10 Vdc to +10 Vdc. Factory-sealed, tested on live rack with 48-hour burn-in. 12-month warranty. Ships within 24 hours.
Technical Specifications
| 163179-03 | is a Process Variable Monitor developed by Bently Nevada, part of the 3500 Series. This monitor is designed for continuous monitoring of critical machine parameters such as pressures, flows, temperatures, and levels. It is suitable for seismic activity monitoring and other applications requiring precise measurement and control. The 3500/62 model features six channels and supports input signals ranging from +4 to +20 mA current inputs or any proportional voltage inputs between -10 Vdc and +10 Vdc. The monitor conditions these signals and compares them to user-programmable alarm setpoints. |
|---|---|
| Part Number | 163179-03 |
| Manufacturer | Bently Nevada |
| Series | 3500 |
| Input Signal | -10 Vdc to +10 Vdc |
| Power Consumption | 7.0 watts |
| Operating Temperature | -30°C to +65°C |
| Dimensions | 241.3 mm x 24.4 mm x 241.8 mm |
| Weight | 0.82 kg (1.8 lbs) |
| Availability | In Stock |
| Country of Origin | United States |
| Model / SKU | 163179-03 |
✓ Ships within 24 hours | ✓ 12-Month Warranty | ✓ Worldwide Delivery
Detailed Product Information
🎯 Monitoring Function & Protection Role
The Bently Nevada 163179-03 is a dedicated monitoring module within the 3500 Series rack. It continuously measures critical machinery parameters and provides relay outputs for alarm and shutdown protection per API 670. Unlike general-purpose I/O, monitor modules implement signal conditioning, filtering, and threshold comparison directly in hardware — ensuring protection response times under 100 milliseconds even if the rack communication is interrupted.
What It Monitors
- Vibration Monitors: Accept Proximitor inputs, extract peak-to-peak amplitude, compare against programmable alarm/danger setpoints.
- Position Monitors: Measure DC gap voltage for thrust position, differential expansion, and rod drop on reciprocating compressors.
- Temperature Monitors: Accept RTD and thermocouple inputs for bearing metal and case temperature monitoring.
- Tachometer/Speed: Accept magnetic pickup or proximity probe inputs for rotational speed and zero-speed detection.
Setpoint Configuration
Alarm and danger setpoints should be established based on ISO 10816 or API vibration standards for your specific machine type. Always document setpoint rationale — during an incident investigation, you will need to justify why the machine tripped (or didn't trip) at a given threshold.
🔧 Technical Specifications & Calibration
Specifications
| Parameter | Value |
|---|---|
| 163179-03 | is a Process Variable Monitor developed by Bently Nevada, part of the 3500 Series. This monitor is designed for continuous monitoring of critical machine parameters such as pressures, flows, temperatures, and levels. It is suitable for seismic activity monitoring and other applications requiring precise measurement and control. The 3500/62 model features six channels and supports input signals ranging from +4 to +20 mA current inputs or any proportional voltage inputs between -10 Vdc and +10 Vdc. The monitor conditions these signals and compares them to user-programmable alarm setpoints. |
| Part Number | 163179-03 |
| Manufacturer | Bently Nevada |
| Series | 3500 |
| Input Signal | -10 Vdc to +10 Vdc |
| Power Consumption | 7.0 watts |
| Operating Temperature | -30°C to +65°C |
| Dimensions | 241.3 mm x 24.4 mm x 241.8 mm |
Calibration & Verification
- Use a calibrated signal source (TK-3 for vibration, decade box for temperature) to inject known test signals.
- Verify the module's front-panel reading matches the injected signal within ±1% of full scale.
- Force each alarm and danger relay by temporarily lowering setpoints below current readings — verify DCS annunciation and trip logic.
- Document all calibration values and relay test results in your maintenance management system.
📦 Shipping & Warranty
24-hour handling. Anti-static packaging. DHL/FedEx/UPS worldwide. 12-month warranty covering component failure, calibration drift, relay failure.
❓ FAQ
Q: How often should monitor modules be calibrated?
A: Bently Nevada recommends annual calibration verification. For SIL-rated safety loops, verify every 6 months per IEC 61511.
Q: Can I hot-swap a monitor module?
A: No. The 3500 rack monitors are NOT hot-swappable. Power down the rack, replace the module, reconfigure if needed, power up, and verify.
Q: My monitor shows OK but the relay doesn't trip during test?
A: Check: (1) Relay module installed in correct slot; (2) Monitor-to-relay channel mapping in Rack Configuration Software; (3) Relay module STATUS LED — if amber, the relay module itself may be faulty.
💰 Protection ROI
This monitor module is the last line of defense between normal operation and catastrophic machine failure. One avoided bearing wipe on a 50 MW turbine saves $500,000+ in repairs and 4+ weeks of downtime. The monitor cost is recovered in the first detected incident — often within months of commissioning.
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