Designed for critical machinery protection loops, the Bently Nevada 2789-156 serves as a high-precision, low-attenuation coaxial extension cable for proximity transducer systems. This cable maintains physical signal integrity between the proximity probe and the Proximitor sensor, facilitating continuous, online vibration and position monitoring in high-demand industrial environments. Engineered to withstand constant structural vibration and thermal stress, it ensures the precise transmission of high-frequency RF signals without introducing phase distortions or unexpected impedance fluctuations.
| Parameter | Specification Value |
|---|---|
| Manufacturer | Bently Nevada |
| Model Number | 2789-156 |
| Product Type | Proximity Probe Extension Cable |
| Cable Type | Coaxial |
| Physical Cable Length | approx. 4.0 meters (13.0 feet / 156 inches) |
| Connector Configuration | Miniature coaxial connectors (Male to Female) |
| Compatible Systems | Bently Nevada Proximity Transducer Systems |
| Country of Origin | United States |
| Shipping Weight (Calculated) | 0.5 kg |
| Connector Element | Signal Assignment / Function |
|---|---|
| Center Conductor | High-Frequency RF Carrier Signal / Sensor AC Output |
| Outer Shield Braiding | Common Return / Electrostatic Shielding Path |
In older machine protection architectures, matching cable length to system configuration is critical. Proximity systems are factory-tuned to specific total electrical lengths (typically 5.0 meters or 9.0 meters inclusive of the probe's integral lead). Substituting a 2789 series cable with different physical lengths or impedance values without recalibrating the Proximitor sensor will cause systematic scaling errors, leading to false gap and vibration readings.
Coaxial extension cables are vulnerable to high-frequency electromagnetic noise. Running this cable parallel to major AC power lines or variable frequency drive (VFD) output cables introduces inductive coupling. For optimum performance, route extension cables through dedicated, grounded metal conduit, and maintain standard minimum bend radiuses to prevent micro-cracks in the internal shield braiding.
During field installation, ensure that the connection point between the probe lead and the extension cable is dry and clean. Moisture or oil ingress at this junction introduces a parallel resistance path, degrading the RF signal and showing up as a system fault on the monitoring rack. Always use silicone connector protector sleeves or self-fusing insulation tape to isolate the joint.
Inspect the male and female coaxial connectors for any dirt, oxidation, or mechanical damage prior to installation.
Connect the extension cable to the proximity probe lead. Use a connector torque wrench to tighten the connection to OEM-recommended torque specifications to ensure a vibration-proof fit without over-tightening.
Apply a silicone connector sleeve or self-fusing tape wrap over the connection to protect the interface from moisture, oil, and dust ingress.
Route the cable back to the proximity sensor housing through suitable conduit, adhering strictly to the minimum bend radius constraints.
Global Express Shipping
Returns & Warranty
Manufacturer: Bently Nevada
Product No.: 2789-156
Country of origin:United States
Product Type: Proximity Probe Extension Cables
Payment: T/T, Western Union
Weight: 320g
Shipping port: Xiamen
Warranty: 12 months
Designed for critical machinery protection loops, the Bently Nevada 2789-156 serves as a high-precision, low-attenuation coaxial extension cable for proximity transducer systems. This cable maintains physical signal integrity between the proximity probe and the Proximitor sensor, facilitating continuous, online vibration and position monitoring in high-demand industrial environments. Engineered to withstand constant structural vibration and thermal stress, it ensures the precise transmission of high-frequency RF signals without introducing phase distortions or unexpected impedance fluctuations.
| Parameter | Specification Value |
|---|---|
| Manufacturer | Bently Nevada |
| Model Number | 2789-156 |
| Product Type | Proximity Probe Extension Cable |
| Cable Type | Coaxial |
| Physical Cable Length | approx. 4.0 meters (13.0 feet / 156 inches) |
| Connector Configuration | Miniature coaxial connectors (Male to Female) |
| Compatible Systems | Bently Nevada Proximity Transducer Systems |
| Country of Origin | United States |
| Shipping Weight (Calculated) | 0.5 kg |
| Connector Element | Signal Assignment / Function |
|---|---|
| Center Conductor | High-Frequency RF Carrier Signal / Sensor AC Output |
| Outer Shield Braiding | Common Return / Electrostatic Shielding Path |
In older machine protection architectures, matching cable length to system configuration is critical. Proximity systems are factory-tuned to specific total electrical lengths (typically 5.0 meters or 9.0 meters inclusive of the probe's integral lead). Substituting a 2789 series cable with different physical lengths or impedance values without recalibrating the Proximitor sensor will cause systematic scaling errors, leading to false gap and vibration readings.
Coaxial extension cables are vulnerable to high-frequency electromagnetic noise. Running this cable parallel to major AC power lines or variable frequency drive (VFD) output cables introduces inductive coupling. For optimum performance, route extension cables through dedicated, grounded metal conduit, and maintain standard minimum bend radiuses to prevent micro-cracks in the internal shield braiding.
During field installation, ensure that the connection point between the probe lead and the extension cable is dry and clean. Moisture or oil ingress at this junction introduces a parallel resistance path, degrading the RF signal and showing up as a system fault on the monitoring rack. Always use silicone connector protector sleeves or self-fusing insulation tape to isolate the joint.
Inspect the male and female coaxial connectors for any dirt, oxidation, or mechanical damage prior to installation.
Connect the extension cable to the proximity probe lead. Use a connector torque wrench to tighten the connection to OEM-recommended torque specifications to ensure a vibration-proof fit without over-tightening.
Apply a silicone connector sleeve or self-fusing tape wrap over the connection to protect the interface from moisture, oil, and dust ingress.
Route the cable back to the proximity sensor housing through suitable conduit, adhering strictly to the minimum bend radius constraints.
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
United States
|
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