Product Core Brief
- Model: 172103‑01
- Brand: BENTLY
- Series: 3500 Machinery Protection System
- Core Function: Accepts mixed RTD and isolated‑tip thermocouple inputs, monitors bearing, winding and process temperatures, generates alert / danger alarms for rotating‑machinery protection.
- Product Type: 3500/65 16‑Channel Temperature Monitor Module, internal termination
- Key Specs: 16 configurable channels | RTD / isolated‑tip TC compatible | Internal screw terminal blocks ⚠️ EOL — limited stock remaining
Product Introduction
BENTLY 172103‑01 occupies one full‑height slot inside a 3500 series rack. It reads temperature sensor signals and compares measured values against user‑defined alarm thresholds for turbines, compressors and generators.
Compared to lower‑channel‑count temperature cards, this unit consolidates up to 16 temperature points within one slot. Measurement repeatability holds at ±0.1 % of reading across all active channels —though your mileage may vary when deploying long uncompensated thermocouple cable runs.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Channel Count | 16 configurable temperature input channels |
| Supported Sensors | 2‑wire / 3‑wire / 4‑wire RTD; isolated‑tip TC types J, K, E, T, R, S, B, N |
| Termination | Internal screw‑type terminal blocks |
| Power Draw | 3.0 W typical, max 4.2 W from 3500 rack backplane阿里巴巴中… |
| Hot‑Swap Support | Yes (3500 rack compliant) |
| Operating Ambient Temperature | ‑40 °C to +70 °C |
| Relative Humidity | 5‑95 %, non‑condensing |
| Compliance | API 670 machinery‑protection standard |
| Physical Weight | 0.38 kg |
| Country of Origin | United States |

BENTLY 170190‑01E
Quality Control Process (Engineer’s Perspective)
- Incoming Verification: Source traceability, serial number anti‑counterfeit check, visual inspection (no corrosion/scratches). Check edge connector pins for bending or wear.
- Live Functional Test: Power‑on self‑check, backplane comms handshake, continuous load run >24 hrs with temp logging. Capture LED status snapshots every two hours.
- Electrical Parameter Test: Insulation resistance (500 V Megger, >10 MΩ), ground continuity. Flag any resistance drift below threshold.
- Firmware Verification: Read/record firmware version, photograph DIP switch/jumper settings. Well, technically it supports per‑channel sensor type assignment, but only on firmware v5.4+.
- Final QC & Packaging: Anti‑static bag seal, QC Passed label with date. Matching terminal hardware bagged alongside the unit.
Replacement Pitfall Guide
❗ Firmware Mismatch: The unit will block mixed‑sensor channel configuration if host rack firmware falls below minimum revision. Older releases force identical sensor types across all channels.❗ DIP Switch / Jumper Misconfiguration: Factory defaults rarely match field settings. Pay close attention to RTD / TC mode jumpers on the third terminal block.❗ Terminal / Cable Incompatibility: Pin definitions shift across part revisions. Cross‑reference wiring drawings before connecting sensor shield grounds. This is internal‑termination hardware; it cannot pair with external termination block 172115‑01 without special cables.❗ Power Supply Mismatch: Recalculate total rack power with 20% headroom. Adding this module can push marginal power supplies over their continuous rating.❗ ESD Damage: Use anti‑static mat; caution in dry environments. Static discharge can degrade analog measurement circuitry with no visible physical damage.
Keep these in mind and you’ll cut 90% of rework time.

BENTLY 170190‑01E
Compatibility Matrix & Benchmarks
- Scan cycle: 16 ms (simulated load, 16 active temperature input channels)
- Comms throughput: Backplane bus 384 kbps (proprietary 3500 rack bus)






