Product Core Brief
- Model: 3300/65-03-01-00-00-00-01
- Brand: Bently Nevada
- Series: 3300 Machinery Protection System
- Core Function: Continuously monitors bearing and machinery temperature using dual proximity/temperature probes to protect rotating equipment from thermal damage.
- Product Type: Dual Probe Temperature Monitor Module
- Key Specs: Dual Channel | RTD & Thermocouple Compatible | API 670 Compliant
- Condition: New Surplus / Original OEM
BENTLY 3300/20-12-01-03-00-00
Key Technical Specifications
- Manufacturer: Bently Nevada
- Part Number: 3300/65-03-01-00-00-00-01
- Product Category: Dual Probe Temperature Monitor
- System Architecture: Bently Nevada 3300 Rack
- Channel Count: 2 Independent Temperature Inputs
- Supported Sensors: RTD (3-wire, 4-wire) & Thermocouple
- Alarm Logic: Two-Level (Alert & Danger) with Configurable Delays
- Operating Temp Range: -30°C to +65°C
- Compliance: API 670 / CE / CSA
Product Introduction (No Fluff)
This 3300/65-03-01-00-00-00-01 serves as a dual-channel thermal protection module within a Bently Nevada 3300 rack, tracking discrete temperature points on critical machinery bearings and casings. It processes RTD and thermocouple signals to trigger precise, two-level alarms before thermal damage occurs.
Sourcing this exact OEM replacement part prevents catastrophic machine failures when legacy temperature monitors drift or fail. Keeping verified new surplus stock on hand drastically reduces unplanned downtime during critical backplane failures or when expanding thermal monitoring coverage.
QA & Testing SOP (Dynamic & Transparent)
Temperature monitors demand precise calibration. Every 3300/65-03-01-00-00-00-01 undergoes an inbound anti-counterfeit inspection, verifying PCB silkscreen, component lot codes, and Bently Nevada factory labels. Next, the module is mounted on a dedicated 3300 test rack to validate backplane communication. We inject precision resistance and millivolt signals to verify the module accurately calculates temperature values and triggers Alert/Danger relays at the exact programmed setpoints. Finally, a 4-hour continuous burn-in under nominal load catches marginal A/D converters before they reach your panel. All units ship in dual-layer ESD shielding with a printed QA test report.
BENTLY 3300/20-12-01-03-00-00
Installation Pitfalls & Guide (Engineer to Engineer)
❗ Sensor Type Configuration: This module is highly flexible but unforgiving if misconfigured. Each of the 2 channels must be explicitly programmed in the 3300 Configuration Software for the specific sensor type (3-wire RTD, 4-wire RTD, or Thermocouple) and its exact range. Connecting a 3-wire RTD to a channel configured for a thermocouple will result in wildly inaccurate readings.
❗ Alarm Delay Implementation: Thermal mass causes temperature to fluctuate during normal load changes. Always configure an alarm delay in the software to prevent nuisance tripping during transient thermal events. Without this, a momentary spike could unnecessarily trip your machinery.
❗ Dual Probe Matching: When using dual probes on a single bearing, ensure both channels are configured with identical alarm setpoints and delay values. Mismatched settings can cause one channel to alarm while the other remains silent, creating diagnostic confusion.
Replacement Protocol:
- Pre-Install: Lock out the 3300 rack power. Verify 0 VDC at the backplane. Ground yourself properly.
- Removal: Release the front panel retaining screws. Extract the failed module straight out. Inspect the backplane connector for bent pins.
- Install: Align the 3300/65-03-01-00-00-00-01 with the guides. Seat it firmly and secure the faceplate screws. Reconnect the RTD/Thermocouple field wiring.
- Power-on Test: Restore rack power. Use the 3300 Configuration Software to verify the module is recognized. Check the front panel OK LEDs and validate live temperature readings against a handheld calibrator.
Technical FAQ
Is this an exact drop-in replacement for my older 3300/65 module?
Yes, the 3300/65-03-01-00-00-00-01 maintains complete backward compatibility with existing 3300 racks and configurations. It offers the same dual-channel temperature monitoring and integrates seamlessly with the 3300 Configuration Software. You can swap it directly into an older slot without reconfiguring the entire rack.
Why is this listed as “New Surplus” instead of factory-new?
This is genuine Bently Nevada stock that was never deployed in a power plant or refinery. It has been stored in climate-controlled inventory rather than exposed to harsh industrial environments. You receive the exact same MTBF and lifespan as a factory-fresh unit, typically at a significantly lower cost and without the 16-week lead time.
Can I hot-swap this temperature monitor while the 3300 rack is live?
No. The 3300 backplane does not support hot-swapping the temperature monitor module. Removing it under power will cause an immediate loss of thermal monitoring for the connected channels, potentially disabling critical machinery protection. Always schedule this replacement during a planned outage or shutdown window.
What is the warranty coverage on this part?
We provide a standard 12-month functional warranty. If the module fails under normal operating conditions within that window, we replace it. Our QA testing proves the module processed temperature signals accurately before it left our bench, so we stand behind our inventory.
My 3300 system is aging. Should I replace this module or plan a full system migration?
If this is an isolated failure, replacing the 3300/65-03-01-00-00-00-01 is the most cost-effective way to keep your thermal protection system compliant with API 670. However, if you are experiencing cascading backplane communication errors or multiple monitor failures, your entire rack may be nearing end-of-life. Use this replacement as a bridge to schedule a comprehensive migration during your next major turnaround.
