Product Core Brief
- Model: 172103-01
- Brand: BENTLY NEVADA
- Series: 3500/65
- Core Function: Monitors bearing and casing temperatures via RTD or thermocouple inputs.
- Product Type: Temperature Monitor Module
- Key Specs: 4 Channels | RTD/Thermocouple | 3500 Rack Mount
- Condition: New Original / New Surplus
BENTLY 172103-01
Product Introduction
BENTLY 172103-01 is a 3500/65 temperature monitor module for rotating machinery protection. It accepts direct sensor inputs and converts them to alarm and trip signals for the monitoring system.
This industrial automation unit supports four independent channels with programmable setpoints. It operates from -30°C to +65°C and integrates seamlessly into the 3500 rack backplane.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Module Type | 3500/65 Temperature Monitor |
| Channel Count | 4 Independent Inputs |
| Sensor Compatibility | RTD (Pt100, Ni120) / Thermocouple (J, K, T, E) |
| Input Wiring | 2, 3, or 4-Wire RTD |
| Rack Compatibility | 3500 Series Framework |
| Hot-Swap Capability | Yes |
| Operating Temp | -30°C to +65°C |
| Mounting | 3500 Backplane Slot |
| Compliance Standard | API 670 |
| Accuracy | ±0.5% of Span |
Quality Control Process
We validate every BENTLY 172103-01 before it leaves our facility. First, we inject precision resistance values to simulate RTD inputs across the full temperature range. Output must match within ±0.5% of span.
Next, we verify alarm and trip relay activation at programmed setpoints. We also check for channel crosstalk by energizing one input while monitoring adjacent channels for false signals.
Finally, each replacement module ships in anti-static shielding with desiccant packs. This prevents moisture ingress during transit.
BENTLY 172103-01
Replacement Pitfall Guide
❗ Sensor Type Mismatch: Verify your field wiring matches the module configuration. Connecting a 3-wire RTD to a 2-wire configured channel causes significant measurement drift and false alarms.
❗ Backplane Slot Assignment: Temperature modules have specific slot restrictions in the 3500 rack. Installing this unit in a vibration monitor slot prevents backplane communication and module recognition.
❗ Grounding and Shielding: RTD cables are highly susceptible to EMI. Never run temperature wiring parallel to VFD output cables. Ground the shield at the module end only to prevent ground loops.
❗ Configuration File Dependency: Swapping this module requires importing the exact rack configuration. Missing a single channel’s sensor type or alarm setpoint can disable critical bearing temperature protection.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| 172103-01 | 3500/65-01-00-00 | Direct | Current production equivalent |
| 172103-01 | 3500/65-02-00-00 | Direct | Verify firmware revision |
| 172103-01 | 3500/65M | Direct | Enhanced diagnostic version |
- Scan Rate: 10 Hz per channel
- Input Impedance: >10 MΩ for RTD inputs
