Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada (Baker Hughes) |
| Product Family | 3500 Machinery Protection System |
| Part Number | 136719-01 |
| Module Type | 3500 Series I/O Module (function varies by configuration) |
| Rack Compatibility | Bently Nevada 3500 instrumentation rack |
| Configuration Method | 3500 Rack Configuration Software via RIM/TDI |
| Primary Role | Discrete/relay or auxiliary I/O interface within 3500 rack |
| Hot-Swap Capability | Supported per 3500 system design rules |
| Power Source | Supplied from 3500 rack backplane |
| Typical Applications | Alarm relay expansion, discrete status I/O, auxiliary interfacing |
| Standards Reference | API 670-compliant system family |
| Operating Temperature | -30°C to +65°C typical for 3500 system |
Product Introduction
In a 3500 rack, the part number alone does not always tell the full story — especially with older or less common I/O cards. The 136719-01 shows up in surplus inventories as a 3500-series I/O module, but its exact role depends on the installed firmware, front-panel labeling, and rack configuration.
This module belongs to the Bently Nevada 3500 Machinery Protection System, which is widely used on turbines, compressors, fans, and pumps across power, oil and gas, and heavy industry. It plugs into a 3500 rack and is configured through the 3500 Rack Configuration Software via the rack interface or TDI module. Because multiple descriptions circulate for 136719-01, do not assume channel count, relay type, or I/O mapping without verifying the OEM datasheet and the actual module label.
QA/QC Transparency SOP
- Intake & Origin Verification — Confirm Bently Nevada 136719-01 on the label. Record serial number, hardware revision, and any module type code. Photograph the front connector block, LED indicators, and rear bus interface.
- Live Functional Testing — Install into a verified 3500 rack with a known-good 3500/15 power supply and 3500/22M TDI or compatible rack interface. Confirm the module powers up, passes self-test, and is recognized by the 3500 Rack Configuration Software.
- Electrical Parameter Tests — Measure backplane current draw and compare against the expected range for the identified module type. Verify discrete input response or relay output operation using a test load or dry-contact simulator.
- Firmware/Config Verification — Upload the existing rack configuration and confirm the module appears with the correct type and channel mapping. Back up the configuration before any changes.
- Final QC & Anti-Static Packaging — Log test results, LED status, configuration readout, and power measurements. Pack in ESD-safe packaging with connector protection and a test summary sheet.
Field Engineer Gotchas
- Part Number Is Not Enough — The 136719-01 appears in listings under different functional descriptions. Do not assume it is a relay module, process I/O card, or ground module without confirming the front label and OEM documentation.
- Rack Configuration Dependency — Even if the module is electrically healthy, it will not function correctly if the 3500 rack configuration does not define its role. Always upload and verify the existing rack file before replacement.
- Slot Assignment Matters — Some 3500 modules are slot-restricted. Installing an I/O module in the wrong slot can prevent recognition or cause configuration errors.
- Hot-Swap Is Not Risk-Free — The 3500 system supports hot insertion/removal under defined conditions, but pulling the wrong module during an active alarm condition can complicate diagnostics.
- Surplus Firmware Mismatch — Older firmware may not match the current rack configuration or software version. Verify compatibility with the 3500/22M TDI and Rack Configuration Software before commissioning.
BENTLY 136719-01
Application Scenarios
- Relay logic expansion in a 3500 rack — Provides additional discrete outputs for alarm annunciation, permissive interlocks, or DCS status signaling.
- Auxiliary status monitoring — Accepts dry-contact or discrete signals from auxiliary equipment tied to a protected turbine or compressor train.
- Legacy 3500 rack repair — Replaces a failed or missing I/O card where the original module type and configuration are documented.
- Commissioning support — Used as a verified spare during shutdowns when the exact 3500 I/O function has been confirmed against the rack file.
FAQ
What does Bently Nevada 136719-01 do?
It is a 3500-series I/O module used for discrete, relay, or auxiliary signal interfacing within a 3500 rack. The exact function must be confirmed from the module label and OEM documentation.
Is 136719-01 a relay module?
It is commonly listed as a 3500 I/O or relay-related module, but the precise channel count and contact type should be verified against the OEM datasheet and rack configuration.
Can it be hot-swapped?
Yes, 3500 modules generally support hot insertion/removal when the rack and system design allow it. Follow Bently Nevada procedures and verify slot compatibility.
What software configures it?
The 3500 Rack Configuration Software, accessed through the 3500/22M TDI or compatible rack interface module.
Will it work in any 3500 rack?
It is designed for the Bently Nevada 3500 instrumentation rack, but slot position, firmware, and rack configuration must match.
Do you supply tested units?
Yes. Units can be provided with part-number verification, rack communication testing, configuration readout, and ESD packaging. The exact I/O function should be confirmed before shipment.
