Description
Product Core Brief
- Model: 3500/33-01-02
- Brand: BENTLY NEVADA
- Series: 3500 Machinery Protection System
- Core Function: Drives 16 independent relays for alarm and trip signaling.
- Product Type: 16-Channel Relay Output Module
- Key Specs: 16 Channels | Full-Height | CSA/NRTL/C Approved
- Condition: New Original (New Surplus)
Product Introduction
BENTLY 3500/33-01-02 provides 16 independent relay outputs for machinery protection. The 149986-01 front board processes voting logic and drives the rear I/O assembly.
Unlike the 4-channel 3500/32, this full-height module handles dense trip routing. It supports AND/OR logic using inputs from any rack monitor. Well, technically it requires Rack Config v3.3 or later to program these complex logic gates properly.
BENTLY 3500/33-01-02
Key Technical Specifications
| Parameter | Value |
|---|---|
| Module Type | 16-Channel Relay Output |
| Front Board PWA | 149986-01 |
| Rear Board PWA | 149992-01 |
| Agency Approval | CSA/NRTL/C (-02 Option) |
| Module Height | Full-Height |
| Max Switching Power | 1200 VA |
| Max AC Voltage | 120 VAC |
| Min Switch Current | 1 mA (Gold Contacts) |
| Relay Contact Life | 10,000 Cycles |
| Typical Power | 5.8 W |
| Dimensions | 241 mm x 24.4 mm x 99.1 mm |
Quality Control Process (Engineer’s Perspective)
- Incoming Verification: We check source traceability and verify serial numbers against anti-counterfeit databases. Visual inspection confirms no physical damage or connector corrosion.
- Live Functional Test: Power-on self-checks validate basic operation. We run continuous load tests exceeding 24 hours with temperature logging to ensure stability.
- Electrical Parameter Test: Insulation resistance is verified using a 500 V Megger, requiring >10 MΩ. Ground continuity is also strictly checked.
- Firmware Verification: We read and record internal firmware versions. DIP switch and jumper settings are photographed for future reference.
- Final QC & Packaging: The unit is sealed in an anti-static bag. A QC Passed label with the inspection date is applied before shipping.
Replacement Pitfall Guide
❗ Agency Approval Mismatch: The -02 suffix denotes CSA/NRTL/C approval. Do not substitute a -00 (unapproved) unit in certified hazardous locations, as this violates safety compliance.
❗ Front vs. Rear Board Confusion: The 149986-01 is only the front control board. You must verify the rear I/O board (149992-01 or 149992-02 Failsafe) matches your field wiring requirements.
❗ Software Version Lock: Programming this module requires 3500 Rack Configuration Software v3.3 or later. Older software will not recognize the 16-channel logic gates.
❗ Power Supply Headroom: Calculate total rack power carefully. Each module draws 5.8 W typical; always maintain a 20% headroom margin on your 3500/15 power supply.
❗ ESD Damage: Use an anti-static mat during installation. Dry environments significantly increase electrostatic discharge risks to sensitive electronics.
Keep these in mind and you’ll cut 90% of rework time.
BENTLY 3500/33-01-02
Compatibility Matrix & Benchmarks
- 3500/33-01-02 → 3500/33-01-00 : Needs Adaptation — CSA Approved vs. Unapproved Agency Option
- 3500/33-01-02 → 3500/32-01-00 : Incompatible — 16-Channel Full-Height vs. 4-Channel Half-Height
- 3500/33-01-02 → 3500/34 : Needs Adaptation — Standard vs. Triple Modular Redundancy (TMR)
- Logic Scan Cycle: < 1 ms (simulated load, 16 I/O points)
- Comms Throughput: Backplane interface (Modbus TCP via 3500/22M TDI)
