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Bently Nevada 16925-30 16925 Interconnect Cable
The Bently Nevada 16925-30, also cataloged as the 16925 Interconnect Cable Series non-armored cable, serves as the primary 3-conductor signal interconnect assembly utilized to execute vibration transducer signal transmission across 3300, 3500, and 7200 monitoring system architectures.
Suffix Breakdown & Model Matrix
The suffix “-30” defines a fixed cable length configuration of 30 feet (9.14 m) within the 16925 interconnect cable family. No additional functional segmentation is defined by the manufacturer beyond length-based variants.
Hardware Specifications
| Parameter |
Specification |
| Model |
16925-30 |
| Brand |
Bently Nevada |
| Origin |
United States |
| Weight |
1 kg |
| Dimensions |
30 feet (9.14 m length) |
| Operating Temp |
-40 deg C to +85 deg C |
| Power Consumption |
Passive component (not applicable) |
| Conductor Type |
3-conductor, 22 AWG multi-strand copper |
| Insulation Material |
PVC (Polyvinyl Chloride) |
| Shielding |
Foil + braid EMI/RFI shield |
| Connector Type |
MIL-C-5015 compatible (sensor end), terminal lugs (monitor end) |
| Cable Diameter |
6.0 mm ±0.2 mm |
| Voltage Rating |
250 to 300 V |
| Current Rating |
5 to 10 A |
Bently Nevada Signal Integrity & EMI Suppression Behavior in Vibration Loops
Within Bently Nevada vibration monitoring loops, the 16925-30 cable functions as a low-capacitance analog transmission medium between proximity probes, seismic sensors, and monitoring modules such as 3300 and 3500 racks. The 3-conductor architecture preserves excitation, signal return, and shield continuity across the full loop path.
The dual-layer shielding structure (foil plus braid) provides cross-talk suppression and reduces induced noise from adjacent power or switching conductors. This is critical for maintaining stable gap voltage-derived signals used in eddy-current probe scaling chains. Cable impedance stability ensures that amplitude and phase distortion remain within acceptable limits for rotor dynamic signal interpretation.
Mechanical flexibility of the non-armored construction allows routing through constrained conduit paths; however, signal integrity remains dependent on correct shield termination and single-point grounding at the monitor end to avoid ground loop formation.
Frequently Asked Questions (FAQ)
Q: Can the 16925-30 cable be used for both proximity probes and seismic sensors?
A: Yes. It is electrically compatible with 3-wire vibration and position transducer systems, provided termination mapping matches system input configuration.
Q: Does cable length affect vibration signal accuracy?
A: Yes. As a passive analog transmission medium, increased length contributes to higher capacitance, which may affect high-frequency signal response if not within design limits.
Q: Is the shielding required to be grounded at both ends?
A: No. Standard practice is single-point grounding at the monitor side to prevent ground loop currents in vibration measurement circuits.
Field Installation Guidelines
Install the cable with controlled bend radius to avoid conductor deformation. Do not exceed mechanical tension limits during routing through conduits or cable trays. Maintain separation from high-voltage power lines and switching equipment to reduce electromagnetic coupling.
Terminate shield drain wires at a single grounding point on the monitoring system side. Avoid dual-end grounding unless explicitly required by site grounding design. Ensure MIL-C-5015 connector engagement is fully seated and mechanically locked to maintain stable signal continuity.
