21747-080-01 Armored Cable Bently Nevada 21747 Proximity Sensor
Manufacturer: Bently Nevada
Product No.: 21747-080-01
Condition： In stock
Product Type: Extension Cable
Product Origin: USA
Payment: T/T, Western Union
Weight: 260g
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.
Guaranteed Safe Checkout
Product Overview: Bently Nevada 21747-080-01
The 21747-080-01 cable links Bently Nevada eddy current probes to Proximitors.
Engineers rely on the 7200 Series proximity system for critical rotating machinery monitoring.
This assembly provides precise vibration and axial position measurement without signal loss.
The stainless steel armor protects delicate wiring against severe mechanical impact in industrial plants.
Configuration Breakdown & Options
The part number 21747-080-01 defines specific mechanical and electrical choices:
-
Part Number: 21747-080-01
- Base Model (21747): Standard 7200 Series extension cable assembly
- Cable Length (-080): 8.00 meters (315 inches) length
- Armor Protection (-01): Flexible stainless steel armor jacket
Technical Specifications
| Category | Parameter | Specification |
|---|---|---|
| Identity & Series | Brand | Bently Nevada |
| Model Number | 21747-080-01 | |
| System Series | 7200 Series Transducer System | |
| System Performance | Calibrated Range | 80 mils (2.0 mm), begins 10 mils (0.25 mm) from probe face |
| Scale Factor | 200 mV/mil (7.87 V/mm) ±4% system calibrated (±9.5% interchanged) | |
| Linearity | Within 0.8 mils (0.02 mm) system calibrated (2.3 mils interchanged) | |
| Frequency Response | 0 to 10 kHz (0 to 600,000 cpm); -5% at 10 kHz | |
| Electrical & Power | Proximitor Input Power | -17.5 Vdc to -26 Vdc at 12 mA maximum consumption |
| Temperature Sensitivity | Typically -3% scale factor shift at +150°F (+65°C) at 50 mils gap | |
| Environmental Tolerances | Cable & Probe Temperature | -30°F to +350°F (-34°C to +177°C) |
| Operating Relative Humidity | Up to 95%, non-condensing | |
| Chemical Resistance | Resists water, lube oil, 10% sulfuric acid, MEK, DMF, and ammonium hydroxide |
Model Comparison & Engineering Guidance
| Model | Cable Length | Armor Sleeve | System Target Length | Application Advice |
|---|---|---|---|---|
| 21747-080-01 | 8.0 meters (315 in) | Stainless Steel Armor | 9.0 Meters Total System | Best for long routing distances from turbine housing to junction boxes. |
| 21747-040-01 | 4.0 meters (157 in) | Stainless Steel Armor | 5.0 Meters Total System | Ideal for close-coupled Proximitor enclosures with shorter wiring runs. |
Select total cable length to maintain exact 5-meter or 9-meter system match with the Proximitor calibration.
Connecting incorrect cable lengths alters system capacitance and invalidates scale factor accuracy.
Typical Applications & Diagnostic Capabilities
Plants install the 21747-080-01 cable on steam turbines, boiler feed pumps, and centrifuges.
It transmits high-frequency eddy current signals for continuous radial shaft position tracking.
Engineers monitor shaft orbit patterns and detect dynamic unbalance, misalignment, or bearing wear.
Global PLC Spare HUB's Insight
During a field retrofit on a power plant gas turbine, engineers encountered erratic vibration spikes.
An unarmored extension cable suffered crushing damage inside an overhead cable tray.
Our team recommended replacing the damaged assembly with the armored 21747-080-01 cable.
The stainless steel armor prevented mechanical pinching from neighboring conduit lines.
The machine protection monitor instantly stabilized, restoring precise 200 mV/mil output signal integrity.
Packaging, Logistics & Warranty Terms
- Factory Condition: Brand new items supplied in original factory packaging.
- Warranty Coverage: Includes a 12-month factory defect warranty.
- Fast Dispatch: Orders process and ship within 24 to 48 hours.
- Express Shipping: Global delivery via FedEx, UPS, and DHL.
Frequently Asked Questions (FAQ)
Q: How do I verify if my 7200 series system requires an 8-meter extension cable?
A: Check the Proximitor label for required system length. Match an 8-meter cable with a 1-meter probe for 9 meters total.
Q: Can I install armored extension cables inside narrow electrical conduit runs?
A: Armored cables resist crushing but require a larger bending radius. Verify internal conduit diameter before pulling.
Q: What chemical exposures can the 21747 extension cable handle safely?
A: The outer sleeve withstands lube oil, water, 10% sulfuric acid, ammonium hydroxide, MEK, and DMF.
Q: What happens to signal calibration if I mismatch cable lengths?
A: Mismatched lengths change total system capacitance. This shifts the 200 mV/mil scale factor and causes measurement error.
Q: Does stainless steel armor isolate electrical noise interference?
A: Armor provides physical mechanical protection. Inner coaxial shielding isolates electrical noise interference.
Tags
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.
People Also Bought
