Product Core Brief
- Model: 177230-01-01-05/CN
- Brand: Bently Nevada (Baker Hughes)
- Series: 177230 Seismic Vibration Transmitter
- Core Function: Loop-powered seismic transmitter that converts machine casing vibration into a 4–20 mA signal for PLC, DCS, and SCADA systems.
- Product Type: Integrated vibration transmitter
- Key Specs: Range 01: 0–25.4 mm/s (0–1.0 in/s) velocity RMS | Frequency 01: 10 Hz–1 kHz | Approval 05/CN: CN approval with CSA/NRTL/C, ATEX, IECEx options | 3-pin MIL-C-5015 connector
- Condition: New Surplus / Factory New (confirm label, approval marking, and connector condition before procurement)
Product Introduction
The Bently Nevada 177230-01-01-05/CN is an integrated seismic vibration transmitter for monitoring rolling-element bearing machinery. It uses a piezoelectric accelerometer to measure casing vibration and outputs a proportional 4–20 mA signal representing vibration velocity RMS.
The model code breaks down as follows:
| Segment | Value | Meaning |
|---|---|---|
| Base model | 177230 | Seismic vibration transmitter |
| Range | 01 | 0–25.4 mm/s (0–1.0 in/s) velocity RMS |
| Frequency response | 01 | 10 Hz to 1 kHz |
| Approval | 05/CN | CN approval; may also carry CSA/NRTL/C, ATEX, IECEx markings depending on label |
This transmitter is designed for non-critical rotating equipment such as centrifugal pumps, fans, compressors, motors, and generators. It provides a simple, loop-powered interface to control systems without requiring field configuration or external signal conditioning. The unit also provides a dynamic acceleration waveform output for diagnostic purposes, accessible at the wiring end of the connection cable.
The 177230-01-01-05/CN typically uses a 3-pin MIL-C-5015 connector and is compatible with Bently Nevada 16710 armored or 16925 non-armored connection cables.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | Seismic vibration transmitter |
| Brand | Bently Nevada (Baker Hughes) |
| Model | 177230-01-01-05/CN |
| Measurement | Casing vibration velocity RMS |
| Range | 0–25.4 mm/s (0–1.0 in/s) |
| Frequency Response | 10 Hz to 1 kHz |
| Output | 4–20 mA, loop-powered |
| Dynamic Output | Acceleration waveform for diagnostics |
| Connector | 3-pin MIL-C-5015 |
| Compatible Cables | 16710 armored / 16925 non-armored series |
| Approval | CN; may include CSA/NRTL/C, ATEX, IECEx depending on label |
| Typical Applications | Pumps, fans, compressors, motors, gearboxes |
Exact approval markings, firmware, and cable length requirements should be confirmed against the product label and OEM documentation.
Quality Control Process (DYNAMIC GENERATION)
- Part-number verification: Confirm 177230-01-01-05/CN on the product label.
- Visual inspection: Check stainless steel housing for dents, corrosion, or impact damage.
- Connector check: Inspect the 3-pin MIL-C-5015 connector for bent pins, seal damage, or thread wear.
- Label verification: Confirm range 01, frequency 01, and approval 05/CN markings.
- Loop test: Verify 4–20 mA output under safe power-up conditions if test equipment is available.
- Cable compatibility check: Confirm the installed cable matches 16710 or 16925 series with correct length.
Replacement Pitfall Guide (DYNAMIC GENERATION)
❗ Do not confuse range 01 with 00 or 02. Range 00 is 0–12.7 mm/s, 01 is 0–25.4 mm/s, and 02 is 0–50.8 mm/s. Substituting the wrong range will change the 4–20 mA scaling.
❗ Do not confuse frequency 01 with 02. Frequency 01 is 10 Hz–1 kHz; 02 is 3 Hz–1 kHz. The wrong frequency response may miss low-speed vibration components.
❗ Verify the approval suffix. 05/CN indicates CN approval with possible CSA/NRTL/C, ATEX, IECEx markings. Replacing it with a different approval code may affect hazardous-area compliance.
❗ This is not a proximity probe system. The 177230 measures casing vibration, not shaft relative vibration. It should not be substituted for 3300 XL eddy-current probe systems.
❗ Match the connection cable. The transmitter requires a 16710 armored or 16925 non-armored cable with a 3-pin MIL-C-5015 connector. Using an incompatible cable will prevent proper connection.
❗ Not intended for critical trip protection. The 177230 is primarily for condition monitoring and non-critical protection. For critical machinery protection, Bently Nevada 3500 system modules should be used.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Alternative | Compatibility Level | Migration Notes |
|---|---|---|---|
| Bently Nevada 177230-01-01-05/CN | Same 177230-01-01-05/CN | Direct | Match full order code and approval marking. |
| Bently Nevada 177230-01-01-05 | 177230-01-01-05/CN | Needs Verification | Confirm CN approval and hazardous-area requirements. |
| Bently Nevada 177230-01-01-CN | 177230-01-01-05/CN | Needs Verification | 05/CN and CN may carry different approval certificates. |
| Bently Nevada 177230-00-01-05 | 177230-01-01-05/CN | Not direct | Different range (0–12.7 vs 0–25.4 mm/s). |
| Bently Nevada 177230-02-01-05 | 177230-01-01-05/CN | Not direct | Different range (0–50.8 vs 0–25.4 mm/s). |
Benchmarks:
- 177230 integrated seismic vibration transmitter for casing vibration monitoring.
- Range 01: 0–25.4 mm/s (0–1.0 in/s) velocity RMS.
- Frequency response 01: 10 Hz to 1 kHz.
- 4–20 mA loop-powered output for DCS/PLC/SCADA integration.
- Approval 05/CN: CN approval; may include CSA/NRTL/C, ATEX, IECEx depending on label.
- Compatible with 16710 armored and 16925 non-armored connection cables.
- Third-party listings that describe 177230 as an eddy-current shaft probe or 3300 XL system are incorrect.
