Fluke 943-227-15, 943-27 manual Cable Termination Instructions, Detector Cable Termination

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Appendix

D

Cable Termination Instructions

Appendix D

Cable Termination Instructions

D.1 Cable Termination Instructions

The procedures and instructions provided in Appendix D are provided for reference in terminating the field cables to the Digital Preamplifier. A mating SHV connector is provided with the preamplifier. Ring lug terminals are to be provided by the user. The instructions provided below are based on the use of P/N 50-100 multi-conductor cable. For other customer-supplied cables, the same basic procedures, modified for the specific cable used, may be utilized.

Detector Cable Termination:

The detector high voltage and signal cables enter the preamplifier through “Seal Grip” type penetrations on the enclosure body. The “Seal Grips” contain a rubber gland that is intended to grip the coaxial cables to prevent moisture entry into the enclosure. The “Seal Grips” are an integral part of the detector cables. The “Seal Grip” enclosure nut is removed from the fitting. The insulating washer stays with the fitting. The detector signal and high voltage cables, with connectors and “Seal Grip” fitting nuts are then inserted into the holes preamplifier enclosure. The “Seal Grip: end fittings are then re-installed securely against the wall of the enclosure.

Detector Field Cable Preparation, “MS” Connector:

Prior to stripping the outer cable jacket, a 4-inch length of 0.75 I.D. shrinkable tubing (provided by the user) should be slid over the 0.675 in cable jacket. The shrink tubing will be used to seal and protect the end of the cable after the termination process is completed. To prepare the cable for termination, a minimum of 7 inches of the cable outer jacket must be stripped off the cable. This will allow for the stripping of approximately one inch from the various conductors, and provide 6 inches of actual service loop cable. In addition, for EMI/RFI protection, the drain wire must be terminated to an earth ground within the enclosure. The length of the drain wire will be based on the distance between the cable entry and the ground location. The length of cable jacket to be stripped will then be based on the distance to the drain wire grounding point.

Once the cable outer jacket is stripped to the proper length, the aluminum tape shield and Mylar binder may be removed, taking care not to damage the No. 20 AWG drain wire. The drain wire may then be separated from the remaining conductors, for routing and termination at the grounding point.

Next, the HV coaxial cable may be separated from the bundle, followed by the single conductors wires that are required for the specific application, and the polyester filler cord. Refer to the project specific detector loop drawing, or the generic detector loop drawing provided in Appendix B for actual conductors to be used.

The polyester filler cord may now be removed. Cut the cord as close to the outer jacket as possible.

The single conductors may now be stripped and soldered to the appropriate connector pin.

D-1

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Contents Victoreen Fluke Biomedical Table of Contents Blank General Description General InformationApplication Specifications Preamplifier Variations Application Detector ReadoutFeature Specification Preamplifier Power Jumper Normal Setting Function Alternate Setting Switch Normal Switch FunctionOFF Selects 300 baud 1/ON Selects 4800 baud normal setting Jumper Normal Setting Function Cal. PositionJ4-1 TB1943-227-15 Description Connects To 977-210-10M Detector ConnectionsReceiving Inspection Auxiliary EquipmentRecommended Spare Parts Part Number Description Used OnStorage Blank Theory of Operation Functional DescriptionFunction Hex Address Theory of Operation Main Circuit Boards Bit Position DescriptionTest Point Function RS232 TransmitVictoreen Communications Loop 943-227-15VL RS232C CommunicationsEnables Victoreen Loop Jumper Normal Function Alternate SettingJumper Normal Function Cal Setting Position Preamplifier Mounting InstallationOperation Electrical InterfaceSet-up Digital Preamplifier Operation Fail AlarmPower Failure Normal OperationTo B Normal Operation To C PGA Offset Adjust Configuration FunctionsTo B Enables Victoreen Loop To C Enables RS232C Normal Firmware VersionSet Point Error Codes Software CalculationsBlank Electronic Adjustments Maintenance, Calibration and TroubleshootingMaintenance Electronic CalibrationTroubleshooting Troubleshooting / AdjustmentsConnector Designations Connector DESIGNATIONS, 943-227-15 and 943-227-15VLSwitch and Jumper POSITIONS, 943-227-15 and 943-227-15VL Applicable Drawings 943-227-15VL Related Manuals Not Supplied with this documentBlank Bill of Materials- 943-227-15 and 943-227-15VL Bill of MaterialsPart Number Description Blank Cable Termination Instructions Cable Termination InstructionsDetector Cable Termination Digital Preamplifier HV Connector Notes HV Digital Preamplifier Cable Termination Instructions D Digital Preamplifier Appendix Cable Termination Instructions Digital Preamplifier Modification Sheets, Engineering Instructions Modification Sheets, Engineering InstructionsBlank Blank Fluke Biomedical

943-227-15, 943-27 specifications

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