177230-02-02-05 Seismic Sensor Bently Nevada Vibration 4-20mA
Manufacturer: Bently Nevada
Product No.: 177230-02-02-05
Condition： In stock
Product Type: Seismic Transmitter Module
Product Origin: USA
Payment: T/T, Western Union
Weight: 400g
Shipping port: Xiamen
Warranty: 12 months
Estimate delivery times: 12-26 days (International), 3-6 days (United States).
Return within 30 days of purchase. Duties & taxes are non-refundable.
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Product Overview
The Bently Nevada 177230 177230-02-02-05 is a loop-powered 4-20 mA seismic vibration transmitter.
Engineers integrate this piezoceramic shear-mode accelerometer directly with PLCs, DCS, and SCADA systems for continuous overall vibration velocity monitoring.
It converts peak vibration velocity into an industry-standard 4-20 mA current loop signal over a 2-wire connection.
The hermetically sealed 316L stainless steel body incorporates a top-exit 3-pin MIL-C-5015 connector providing both 4-20 mA loop output and an unbuffered dynamic acceleration signal via Pin C.
Configuration Breakdown
The matrix below outlines the detailed ordering code structure for model 177230-02-02-05.
| Order Code Component | Option Designation | Functional Specification Detail |
|---|---|---|
| Base Model Number | 177230 | Bently Nevada Seismic Vibration Transmitter Base Unit |
| Full Scale Measurement Range (-AA) | -02 | 0 to 50.8 mm/s (0 to 2.0 in/s) peak velocity range |
| Frequency Response (-BB) | -02 | 3 Hz to 1 kHz (180 cpm to 60 kcpm) ±10% bandpass |
| Agency Approvals (-CC) | -05 | Multiple global approvals (CSA/NRTL/C, ATEX/IECEx certified) |
Technical Architecture & System Parameters
Key technical specifications are organized into distinct functional parameter domains below.
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General Physical Specs
- Brand Name: Bently Nevada
- Model Part Code: 177230-02-02-05
- Case Construction: Hermetically sealed 316L stainless steel
- Connector Type: Top-exit 3-pin MIL-C-5015, 316L stainless steel shell
- Physical Dimensions: 25.4 mm (1.00 in) diameter x 66.0 mm (2.60 in) height
- Unit Mass: 131 g (4.62 oz) typical net weight
- Mounting Hole Spec: 1/4-28 UNF center tapped body hole
-
Electrical & Dynamic Response
- Excitation Power Supply: 12 to 30 Vdc loop power (current limited to 40 mA)
- Primary Signal Output: 4 to 20 mA loop (Pin A = Positive, Pin B = Return)
- Dynamic Output Signal: Unbuffered dynamic acceleration signal at Pin C (referenced to Pin B)
- Settling Time: Less than 15 seconds to within 2% of final settled value
- Mounted Resonant Frequency: Greater than 12 kHz
- Transverse Sensitivity: Less than 5% of primary axis sensitivity
- Electrical Isolation: Greater than 10^8 ohms; breakdown voltage rating 600 Vrms (<1 mA leakage)
-
Environmental & Operating Tolerances
- Operating Temperature: -40 °C to +85 °C (-40 °F to +185 °F)
- Relative Humidity Limit: Up to 100% condensing (non-submerged status)
- Shock Survivability: 9,810 m/s² (1,000 g peak) maximum drop test rating
- Mounting Torque Range: 4 to 7 N·m (35.4 to 62.0 in·lbf)
Target Equipment & Application Scenarios
Loop-powered seismic transmitters provide cost-effective machinery protection across general plant balance-of-plant assets.
- Electric Motors & Blowers: Monitors casing vibration velocity to detect imbalance and bearing cage degradation.
- Cooling Tower Fans: Detects structural looseness and blade aerodynamic imbalance in humid outdoor environments.
- Centrifugal Water Pumps: Measures overall vibration levels caused by hydraulic cavitation or shaft misalignment.
- Industrial Gearboxes: Tracks casing velocity response to identify high-frequency gear tooth mesh faults.
Diagnostic Capabilities & Signal Pinout
The 177230-02-02-05 features a dual-output configuration via its 3-pin MIL connector wiring design.
| Connector Terminal Pin | Functional Signal Assignment | Diagnostic Application |
|---|---|---|
| Pin A | 4-20 mA Positive Loop (+) | Connects to PLC/DCS analog input card for overall velocity trend monitoring. |
| Pin B | 4-20 mA Loop Return (-) | Common return for current loop power and dynamic signal reference. |
| Pin C | Dynamic Acceleration Signal | Provides raw, unbuffered dynamic acceleration output for portable FFT analyzer collection. |
Global PLC Spare HUB's Insight
During a predictive maintenance upgrade at a water treatment facility, engineers needed continuous monitoring on high-pressure pumps.
The existing plant control system lacked dedicated vibration monitor rack slots but had open 4-20 mA PLC channels.
Installing the 177230-02-02-05 allowed direct integration into the existing PLC without purchasing specialized signal conditioners.
When routine 4-20 mA velocity trends indicated an elevated baseline, field reliability technicians connected a portable vibration analyzer to Pin C.
The unbuffered dynamic acceleration output allowed immediate FFT spectrum analysis, revealing early bearing outer-race pitting before catastrophic failure occurred.
Installation & Mounting Guidelines
Adhere to these technical steps when mounting seismic transmitters to rotating machinery balance points.
- Prepare a smooth, flat mounting surface with a surface finish of 0.8 µm (32 µin) Ra or better.
- Apply thread-locking compound sparingly and torque the 1/4-28 UNF mounting stud to 4–7 N·m (35.4–62.0 in·lbf).
- Ensure excitation voltage remains between 12 Vdc and 30 Vdc; use 250-ohm loop resistors for 1-5 Vdc PLC conversion.
- Route shielded twisted-pair wiring with the shield grounded at the PLC cabinet end only to prevent ground loops.
Procurement, Shipping & 12-Month Warranty
We supply authentic industrial condition monitoring hardware globally with full service support guarantees.
- Package Contents: 1 x Bently Nevada 177230-02-02-05 seismic transmitter module.
- Warranty Terms: Backed by a comprehensive 12-Month replacement warranty.
- Global Logistics: Fast international dispatch via FedEx, UPS, or DHL express couriers.
- Order Handling Time: Orders process and dispatch within 24 to 48 hours following payment verification.
Frequently Asked Questions
Q: What is the primary operational benefit of the Pin C terminal connection?
A: Pin C provides an unbuffered dynamic acceleration signal, allowing analysts to connect portable spectrum analyzers without disrupting the 4-20 mA PLC loop.
Q: Why is settling time specified at up to 15 seconds after applying loop power?
A: Internal charge amplifier circuits require up to 15 seconds to stabilize internal bias voltages before output readings settle within 2% of actual value.
Q: Can this 4-20 mA transmitter be powered directly from standard 24 Vdc PLC loop power?
A: Yes. The unit accepts supply voltages from 12 Vdc to 30 Vdc, making it directly compatible with standard 24 Vdc process automation power supplies.
Q: How does selecting low-frequency Option -02 (3 Hz) affect low-speed machine monitoring?
A: The 3 Hz lower frequency corner extends accurate velocity measurement down to 180 rpm, making it suitable for slower rotating fans and pumps.
Q: What express shipping services are used to dispatch urgent field replacements?
A: We process and ship orders within 24 to 48 hours using global express carriers including FedEx, UPS, and DHL.
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Q: Are these parts 100% original and new?
A: Yes. Every component is guaranteed to be 100% original, brand-new, and factory-sealed. We also provide a 12-month comprehensive warranty for your peace of mind.
Q: How fast is the shipping to my country?
A: For in-stock items, we offer same-day dispatch. International express shipping (DHL/FedEx/UPS) typically delivers within 3–5 business days worldwide.
Q: Can I get a formal quotation with shipping costs?
A: Absolutely. Our sales team is ready to provide a detailed Proforma Invoice (PI) including the most competitive shipping rates for your location.
Q: Do you offer discounts for bulk orders?
A: We provide volume-based pricing for large projects or multiple-item orders. Please contact us to get our Best Price Guarantee.
12-Month Comprehensive Warranty
Every part supplied by Global PLC Spare Hub is covered by a 12-month warranty from the date of invoice.
- Coverage: Functional defects and hardware failures under normal operating conditions.
- Commitment: We provide immediate repair, replacement, or a full refund for any verified defective components to minimize your operational downtime.
Returns & Exchange Policy
We offer a 30-day return policy to ensure you receive the exact part your system requires.
- Eligibility: Returns are accepted for uninstalled items in their original, factory-sealed packaging.
- RMA Process: Please contact our support team to obtain a Return Merchandise Authorization (RMA) number before shipping.
- Fast Processing: Refunds or exchanges are processed within 3–5 business days after the returned item passes our technical inspection.
Need Technical Assistance?Not sure if this part is compatible with your system? [Consult our Engineers] before purchasing to ensure 100% compatibility.
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