943-227-15 Digital Preamplifier

Operator Manual

Detector Field Cable Preparation, 943-227-15VL-M1, Conduit Hub:

Prior to terminating the cable, the field conduit must be run to the junction box, and the field cable pulled into the junction box.

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 UDR rear panel 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 ring lug connectors may now be applied to the single conductor cables, and installed in accordance with the project electrical loop diagram.

Trim each conductor as required to reach its assigned terminal point. Allow a minimum of 1 in. spare conductor for future re-termination. Because of the unique requirements of each installation, terminal lugs for the detector single conductor terminations are not included, and are supplied by the user. Ring terminal, Crimp type lugs, Burndy YAE type, sized for the 18 AWG wire, or equivalent, are recommended.

The terminal block is designed to accept a maximum 14 AWG conductor, and is provided with 6-32 mounting screws. Strip the conductor as required by the lug manufacturer, install the lug, and terminate the conductor to the appropriate terminal. The screw terminals may now be torqued to 12 in-lbs.

The mating HV connector, P/N 30-92-1 (Kings 1705-14), may now be terminated per the applicable Kings data sheet attached.

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

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Fluke 943-27, 943-227-15 manual Digital Preamplifier
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943-227-15, 943-27 specifications

The Fluke 943-27 and Fluke 943-227-15 are advanced electrical testing tools designed to meet the demands of professionals in industrial and commercial settings. Recognized for their accuracy and reliability, these devices come loaded with essential features tailored to ensure optimal performance during electrical measurements.

The Fluke 943-27 is a compact yet powerful multimeter that excels in providing precise voltage and current readings. It is equipped with a large, backlit display that ensures visibility in low-light environments. The device supports a wide range of testing parameters, including AC and DC voltage, resistance, continuity, and capacitance measurements, making it invaluable for troubleshooting electrical circuits.

On the other hand, the Fluke 943-227-15 offers additional capabilities, including advanced data logging features. This multimeter allows users to record and analyze measurements over time, which is particularly useful for identifying intermittent issues in electrical systems. Its connectivity options enable seamless data transfer to a computer or mobile device, facilitating easy documentation and reporting.

Both models illustrate a robust construction built to endure tough working conditions. They meet stringent safety standards, which is critical for protecting users from electrical hazards. The ergonomic design ensures comfort during prolonged use, and features like overmolding enhance grip and durability.

One of the standout technologies in these multimeters is Fluke’s True-RMS measurement capability. This feature ensures accurate readings of non-linear loads, which are common in modern electrical systems with variable frequency drives and other electronic devices. Additionally, the built-in low-pass filter technology reduces noise in measurements, ensuring precision even in environments with significant electrical interference.

The Fluke 943-27 and 943-227-15 are also designed to be user-friendly. They feature intuitive controls and a straightforward user interface, allowing technicians to navigate functions effortlessly. The ability to perform automatic ranging simplifies measurements, eliminating the potential for errors when setting the range manually.

In conclusion, the Fluke 943-27 and 943-227-15 represent essential tools for electrical technicians who require versatility, accuracy, and durability in their testing equipment. With advanced features, reliable technologies, and a user-centric design, these multimeters not only meet but exceed the expectations of professionals in the field.
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