The 106765 Series Interconnect Cable is a dedicated cable assembly option for the Bently Nevada Velomitor XA Piezo-velocity Sensor family, principally the 330525 Velomitor XA Sensor. It is listed in the 330525 datasheet under ordering information as 106765-AA, where AA defines the cable length in meters. The 106765 cable is intended to provide a practical, ordered-length interconnect between the Velomitor XA sensor and the local termination or field wiring arrangement used by the condition monitoring system. In a typical installation, the 330525 sensor is mounted directly on the machine housing, and the 106765 interconnect cable carries the sensor signal from the sensor connector to a terminal housing or other local termination point. The terminal housing then provides the transition from the sensor cable to the bulk field cable that runs to the monitor or data acquisition cabinet. This architecture allows the sensor to be installed close to the measurement point while keeping the longer field wiring separate and maintainable.
The 106765 Series is not a generic bulk cable. It is an ordered interconnect cable assembly identified by length and intended for use within the Velomitor XA sensor installation. The datasheet distinguishes the 106765-AA Interconnect Cable from the 02173007 bulk cable, which is a two-conductor twisted, shielded 22 AWG cable supplied without connectors or terminal lugs. The 106765 cable is therefore the local cable assembly option used at the sensor end, while the 02173007 bulk cable is the field cable used for longer runs after the terminal housing. This separation is important because it allows the installer to use a short, flexible interconnect at the machine, protect the sensor connector, and terminate the signal in a terminal housing before continuing with bulk cable to the monitoring system. Each terminal housing can accommodate up to two Velomitor XA Sensor Cables, which supports compact termination arrangements for multiple sensors.
The 106765 Series is part of a complete Velomitor XA measurement chain that includes the 330525 sensor, the 106765 interconnect cable, the 106769 Terminal Housing, the 02173007 bulk cable, the 103537-01 Terminal Mounting Block, and the splash-resistant boot accessories. The cable is ordered by length in meters, with a minimum length of 1 meter and a maximum length of 25 meters, in increments of 3 meters. This ordering rule gives users a controlled set of standard lengths while allowing the cable to be matched to the physical distance between the sensor and the terminal housing. The available length options under the stated rule are 1 m, 4 m, 7 m, 10 m, 13 m, 16 m, 19 m, 22 m, and 25 m. These lengths are suitable for many machine-mounted installations where the sensor is close to a junction box, terminal housing, or local enclosure.
Role in the Velomitor XA Measurement Chain
The 330525 Velomitor XA Sensor is a ruggedized piezo-velocity sensor with a 316L stainless steel case and a hermetically sealed 2-pin Mil-C-26482 connector. It is designed for machinery condition monitoring and can be mounted without an additional housing when properly installed. The sensor produces a velocity output with a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5% and is powered from -22 to -30 VDC with a bias current of 2.5 to 6.0 mA. Its output bias voltage is -12 ±3.0 VDC over temperature, referenced to Pin A, and its dynamic output impedance is less than 2400 Ω. The sensor is case-isolated, which helps avoid ground loops and supports reliable signal transmission in industrial wiring. The 106765 interconnect cable is the local cable assembly that carries this signal from the sensor connector to the terminal housing.
The measurement chain can be understood as a layered arrangement. The sensor converts machine housing vibration into a velocity signal. The 106765 interconnect cable provides the first cable segment from the sensor to a local termination point. The 106769 Terminal Housing provides a stable local connection between the sensor cable and the bulk field cable. The 02173007 bulk cable then carries the signal over the longer distance to the monitor or data acquisition system. The 103537-01 Terminal Mounting Block can be used to provide simple field wiring connections and can be mounted inside a standard Proximitor Sensor housing; one terminal mounting block is needed for each Velomitor XA Sensor connection. The splash-resistant boot accessories, including the 03839144 boot cover and the 03839142 and 03839143 clamps, can be used to protect the interconnect cable assembly in moist or dirty environments.
This layered approach is important because it separates the machine-mounted sensor and its local cable from the longer field wiring. The 106765 cable can be ordered in a length that matches the distance from the sensor to the terminal housing, avoiding excessive slack at the machine. The terminal housing then provides a convenient point for terminating the sensor cable and connecting the bulk cable. This makes installation and maintenance easier, because the sensor and its local cable can be serviced without disturbing the full field wiring run. It also allows the bulk cable to be selected and installed according to the distance to the monitoring cabinet, while the 106765 cable remains a short, controlled assembly at the machine.
Compatibility with the 330525 Velomitor XA Sensor
The 106765 Series is specifically associated with the 330525 Velomitor XA Sensor in the datasheet ordering information. The 330525 uses a 2-pin Mil-C-26482 hermetically sealed connector with a 316L stainless steel shell. The sensor is designed for use with a mating extension cable, and the overall sensor design meets IP-65 and NEMA 4X dust ratings when properly installed with a mating extension cable. The 106765 interconnect cable is the ordered cable assembly option for this local connection. The cable must be selected and installed so that the connector interface is properly mated and protected. The sensor’s weatherproof connector and cable assembly permit mounting without a housing, and the interconnect cable is part of that installation concept.
The 330525 sensor is case-isolated and has a polarity convention in which Pin A goes positive with respect to Pin B when the sensor case motion is toward the connector. The 106765 cable must be used with this polarity convention in mind. The cable assembly should be wired so that the signal path from the sensor to the terminal housing preserves the intended polarity and shield arrangement. The sensor’s dynamic output impedance is less than 2400 Ω, and its output bias voltage is -12 ±3.0 VDC over temperature. These electrical characteristics are compatible with the terminal housing and bulk cable arrangement described in the datasheet. The 106765 cable is not a signal-conditioning device; it is a passive interconnect assembly. Its role is to preserve the sensor signal integrity between the sensor connector and the local termination point.
The 330525 sensor has a maximum cable length of 305 metres (1,000 feet) when using Bently Nevada part number 02173007 cable with no degradation of signal. This specification applies to the bulk cable portion of the installation. The 106765 interconnect cable is limited to 25 meters maximum, which is well within the overall system capability. The use of a short interconnect cable at the machine and a longer bulk cable after the terminal housing allows the installer to take advantage of the 02173007 cable’s long-run capability while keeping the sensor-end wiring manageable. The 106765 cable should not be confused with the 02173007 bulk cable; they serve different roles in the installation.
Length Selection and Ordering Rules
The 106765-AA model number uses AA to indicate length in meters. The datasheet specifies a minimum length of 1 meter (3.3 feet), a maximum length of 25 meters (82 feet), and ordering in increments of 3 meters. This means that the permitted length options are 1 meter, 4 meters, 7 meters, 10 meters, 13 meters, 16 meters, 19 meters, 22 meters, and 25 meters. The model numbers corresponding to these lengths are 106765-01, 106765-04, 106765-07, 106765-10, 106765-13, 106765-16, 106765-19, 106765-22, and 106765-25. The user should select the shortest length that comfortably reaches from the sensor connector to the terminal housing while allowing a proper service loop and minimum bend radius. The datasheet for the 330525 sensor specifies a minimum cable bend radius of 1.5 inches, and this should be observed for the 106765 cable as well.
The ordering increment of 3 meters is important because it defines the available standard lengths. A user who requires a length between the listed options should select the next longer available length rather than attempting to order a non-standard intermediate length. The 106765 series is therefore a controlled-length cable assembly, not a continuously variable bulk cable. This is advantageous for project procurement because the available lengths are predictable and can be scheduled in advance. It also simplifies spares planning, because a small set of standard lengths can cover many machine-mounted sensor locations. For longer runs beyond 25 meters, the installation should use the terminal housing and the 02173007 bulk cable rather than extending the 106765 interconnect cable beyond its specified maximum.
The length of the 106765 cable should be chosen with attention to routing. The cable should be routed away from high-temperature surfaces, sharp edges, and excessive vibration. It should be supported so that the connector at the sensor is not subjected to tension or bending loads. A service loop should be provided near the sensor and near the terminal housing to allow maintenance without straining the cable. The minimum bend radius of 1.5 inches should be respected throughout the routing. If the cable is installed in a moist environment, the splash-resistant boot accessories can be used to protect the connector and cable assembly. The boot cover is made from fluorosilicone elastomer and is blue; the bottom clamp secures the boot to the Velomitor XA Sensor case, and the top clamp secures the boot to the interconnect cable assembly. These accessories are listed separately and are not part of the 106765 cable itself.
Termination and Terminal Housing Integration
The 106765 interconnect cable is designed to work with the 106769 Terminal Housing. The datasheet describes the terminal housing as the means for terminating the Velomitor XA Sensor cable to the bulk cable listed above. The terminal housing provides local connection of the Velomitor XA Sensor signal wires to the monitor field wiring. Each terminal housing can accommodate up to two Velomitor XA Sensor Cables. This means that a single terminal housing can serve two 330525 sensors, each with its own 106765 interconnect cable. The terminal housing is ordered separately as 106769-AA, where AA is the conduit fitting option. The options are 00 for no fittings supplied, 01 for one 3/4 NPT fitting, and 02 for two 3/4 NPT fittings. The user should select the conduit fitting option that matches the local installation and cable routing requirements.
The terminal housing is an important part of the installation because it provides a stable transition between the sensor cable and the bulk cable. The 106765 cable should be long enough to reach the terminal housing with a proper service loop, but not so long that excess cable must be coiled or stored in a congested area. The terminal housing should be mounted in a location that is accessible for maintenance and protected from direct impact, water ingress, and excessive heat. The 106769 terminal housing is not described in the datasheet as a sensor housing; it is a termination housing for the cable transition. The 103537-01 Terminal Mounting Block can also be used for simple field wiring connection and can be mounted inside any standard Proximitor Sensor housing. One terminal mounting block is needed for each Velomitor XA Sensor connection. This gives the installer flexibility in how the local termination is arranged.
The terminal housing and terminal mounting block should be selected together with the 106765 cable length to create a complete local wiring solution. The 106765 cable carries the sensor signal to the terminal housing; the terminal housing provides the connection point; the 02173007 bulk cable carries the signal onward to the monitor. The 02173007 bulk cable is a two-conductor twisted, shielded 22 AWG cable without connectors or terminal lugs, ordered by length in feet. The use of twisted, shielded cable is important for preserving signal integrity in industrial environments. The shield should be terminated according to the monitoring system’s grounding practice. The 106765 cable should also be installed with shielding continuity in mind, and the installer should follow the Bently Nevada user guide and project wiring drawings.
Bulk Cable and Accessory Coordination
The 106765 interconnect cable is one part of a broader accessory set. The datasheet lists the 02173007 bulk cable as a two-conductor twisted, shielded 22 AWG cable without connectors or terminal lugs, specified by length in feet. The 103537-01 Terminal Mounting Block provides simple field wiring connection and can be mounted inside any standard Proximitor Sensor housing; one terminal mounting block is needed for each Velomitor XA Sensor connection. The 03839144 splash-resistant boot cover is made from fluorosilicone elastomer and is blue. The 03839142 bottom clamp secures the boot to the Velomitor XA Sensor case, and the 03839143 top clamp secures the boot to the interconnect cable assembly. These accessories are intended to support a complete and reliable installation.
The cable assembly drawing in the datasheet shows stainless steel armor over the cable, 0.382 mm² (22 AWG) conductors, clear shrink tubing, and conductor identification markings “A” (white), “B” (black), and “SHLD” (green). The overall length tolerance is shown as ±200 (7.8) in the drawing units. This drawing information is useful for understanding the construction of the cable assembly and for planning termination. The “A” and “B” conductors correspond to the sensor signal and return paths, while “SHLD” is the shield. The installer should observe the polarity convention of the 330525 sensor: Pin A goes positive with respect to Pin B when the sensor case motion is toward the connector. The shield should be handled according to the system grounding plan to avoid ground loops and to preserve noise immunity.
The 106765 cable should not be substituted with a generic cable unless the substitute meets the electrical, mechanical, and environmental requirements of the installation. The sensor’s performance depends on a proper connection, and the cable assembly is part of the measurement path. The use of the specified 106765 cable and the associated terminal housing and bulk cable helps ensure that the installation matches the datasheet assumptions. The user should also read the 330500, 330525, and 330530 Velomitor Sensors User Guide (document 100076) before installing and using the product. The datasheet warns that operating the unit outside the specified limits may result in false readings or loss of machine monitoring.
Environmental Protection and Installation Practice
The 330525 sensor is designed to meet IP-65 and NEMA 4X dust ratings when properly installed with a mating extension cable. The 106765 interconnect cable is the local cable assembly used in that installation. Proper installation includes correct mating of the connector, protection of the connector interface, and routing that avoids water accumulation and mechanical damage. The splash-resistant boot accessories can be used to protect the interconnect cable assembly in moist environments. The boot is made from fluorosilicone elastomer and is blue. The bottom clamp secures the boot to the Velomitor XA Sensor case, and the top clamp secures the boot to the interconnect cable assembly. These accessories should be installed according to the instructions and should be inspected periodically.
The cable should be routed with a minimum bend radius of 1.5 inches. It should be supported at intervals to prevent sagging and strain. The connector at the sensor should not be used as a strain relief point. A service loop should be provided so that maintenance can be performed without pulling on the connector. The cable should be kept away from high-temperature sources, sharp edges, and moving parts. If the cable must pass through a wall or enclosure, a suitable gland or conduit fitting should be used. The 106769 Terminal Housing conduit fitting options include no fittings, one 3/4 NPT fitting, or two 3/4 NPT fittings, allowing the installer to match the local conduit arrangement.
In moist environments, the installation should be arranged so that water cannot run down the cable into the connector. A drip loop is recommended. The splash-resistant boot should be fitted correctly so that it seals against the sensor case and the cable assembly. The clamps should be tightened securely but not excessively. The cable jacket should not be cut or damaged during installation. If the cable is damaged, it should be replaced rather than repaired, because a damaged shield or conductor can degrade signal quality and may compromise hazardous area safety. The user should follow the project’s installation drawings and the Bently Nevada user guide for detailed instructions.
Hazardous Area Considerations
The 330525 Velomitor XA Sensor is available with hazardous area approvals, including CSA/NRTL/C and SIRA/CENELEC options. The datasheet lists the 330525 as Ex ia IIC T4 and AEx ia IIC T4 for Class I, Division 1, Groups A, B, C, and D; Class II, Groups E, F, and G; and Class III, with T4 at -40°C ≤ Ta ≤ +100°C. It also lists Ex nL IIC T4 and AEx nA IIC T4 for Class I, Division 2, Groups A, B, C, and D, with installation per drawing 167539 and T4 at -40°C ≤ Ta ≤ +100°C. For ATEX/IECEx, the 330525 is covered by Ex 1 G Ex ia IIC T4 Ga; Ex 3 D Ex na IIC T4 Gc; Ex tc III T130°C Dc; T4 at Ta = -55°C to +121°C. The entity parameters for the 330525 family include Zone 0/1 and Zone 2 values of Ui = 28 V and Ii = 150 mA. The conditions of safe use require that the equipment be connected to equipment meeting the listed entity parameters. Cables of type A or B in compliance with EN 60079-25 must respect the cable parameters listed with the entity parameters. For Zone 2, the supply electrical parameters shall not exceed the values in the tables.
The 106765 interconnect cable, as part of the installation, must be selected and installed so that the hazardous area requirements are met. The cable should be of a type acceptable for the installation and should respect the cable parameters associated with the entity parameters. The terminal housing and bulk cable must also be suitable for the hazardous area. The installer should verify the specific approval option of the 330525 sensor and the requirements of the installation drawing. The detailed listing of country and product-specific approvals should be obtained from the Approvals Quick Reference Guide (108M1756). The user should not assume that the 106765 cable alone determines the hazardous area suitability of the installation; the complete system, including the sensor, cable, terminal housing, and associated apparatus, must be evaluated.
Quality, Documentation, and Maintenance
The 106765 Series is supported by Bently Nevada documentation and technical support. The datasheet references the 330500, 330525, and 330530 Velomitor Sensors User Guide (document 100076) for installation and use. The user should keep the datasheet and user guide available for reference. The 106765 cable should be inspected during routine maintenance for signs of jacket damage, connector wear, loose clamps, or moisture ingress. If the splash-resistant boot is used, it should be inspected for cracks or deterioration. The terminal housing should be checked for tight connections and proper sealing. The bulk cable should be checked for shield continuity and insulation damage. Any damaged cable should be replaced with the correct length and type.
The 106765 cable is a passive component, but its condition affects the quality of the vibration measurement. A damaged shield or a loose connector can introduce noise, cause intermittent signals, or produce false readings. Because the sensor is used for machinery condition monitoring, signal integrity is important for detecting imbalance, misalignment, bearing degradation, and other faults. The 106765 cable should therefore be treated as part of the measurement system, not merely as a wiring accessory. The length should be selected to avoid unnecessary excess, and the routing should be planned to minimize stress and environmental exposure. The use of the specified terminal housing and bulk cable helps maintain a consistent installation quality across the plant.
Applications
The 106765 Series is suitable for use in a wide range of machinery condition monitoring installations where the 330525 Velomitor XA Sensor is applied. Typical applications include motors, pumps, fans, compressors, gearboxes, and other rotating machines that require velocity measurements on the machine housing. The sensor’s rugged construction and the cable’s ordered-length options make the combination suitable for both indoor and outdoor installations, including moist environments when properly protected. The 106765 cable is particularly useful where the sensor is mounted on the machine and the terminal housing is located nearby, such as on a machine frame, in a local junction box, or inside a protective enclosure. The cable’s length options allow the installer to match the distance without excessive slack, which improves reliability and appearance.
The 106765 cable is also useful in retrofit projects where existing wiring must be reused or where a local termination point is already available. The terminal housing can accommodate up to two Velomitor XA Sensor Cables, which can reduce the number of enclosures and simplify wiring. The 103537-01 Terminal Mounting Block provides another option for field wiring connection inside a standard Proximitor Sensor housing. The splash-resistant boot accessories provide additional protection in washdown or humid areas. The 106765 cable should be selected with the 330525 sensor’s approval option and the plant’s hazardous area classification in mind. The complete installation should follow the applicable drawings and standards.
Ordering Summary
The 106765 Series is ordered as 106765-AA, with AA representing length in meters. The minimum length is 1 meter, the maximum length is 25 meters, and orders must be placed in increments of 3 meters. The available lengths are therefore 1 m, 4 m, 7 m, 10 m, 13 m, 16 m, 19 m, 22 m, and 25 m. The corresponding model numbers are 106765-01, 106765-04, 106765-07, 106765-10, 106765-13, 106765-16, 106765-19, 106765-22, and 106765-25. The 106765 cable should be ordered together with the 106769 Terminal Housing, the 02173007 bulk cable, and the appropriate accessories to complete the installation. The terminal housing is ordered as 106769-AA with conduit fitting option 00, 01, or 02. The 103537-01 Terminal Mounting Block and the splash-resistant boot accessories are ordered separately as needed. The user should verify the 330525 sensor approval option and the hazardous area requirements before ordering.
