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  2. Electrical isolation test - Wikipedia

    en.wikipedia.org/wiki/Electrical_isolation_test

    Isolation resistance measurements may be achieved using a high input impedance ohmmeter, digital multimeter (DMM) or current-limited Hipot test instrument. The selected equipment should not over-stress sensitive electronic components comprising the subsystem.

  3. Factory Instrumentation Protocol - Wikipedia

    en.wikipedia.org/wiki/Factory_Instrumentation...

    The FIP standard is based on a French initiative in 1982 to create a requirements analysis for a future field bus standard. The study led to the European Eureka initiative for a field bus standard in June 1986 that included 13 partners. The development group (réseaux locaux industriels) created the first proposal to be standardized in France.

  4. National pipe thread - Wikipedia

    en.wikipedia.org/wiki/National_pipe_thread

    The types are named with a full name and an abbreviation, such as NPT, NPS, NPTF, or NPSC. MIP is an abbreviation for male iron pipe, and FIP is an abbreviation for female iron pipe. [2] Outside North America, some US pipe thread sizes are widely used, as well as many British Standard Pipe threads and ISO 7–1, 7–2, 228–1, and 228-2 threads.

  5. List of abbreviations in oil and gas exploration and production

    en.wikipedia.org/wiki/List_of_abbreviations_in...

    SPFM – single-phase flow meter; SPH – SPH log [clarification needed] SPHL – self-propelled hyperbaric lifeboats; SPM – side pocket mandrel; SPM – strokes per minute (of a positive-displacement pump [citation needed]) spm – shots per meter (perforation density [citation needed]) SPMT – self-propelled modular transporter

  6. Compression fitting - Wikipedia

    en.wikipedia.org/wiki/Compression_fitting

    A compression fitting 15 mm isolating valve. A compression fitting is a fitting used in plumbing and electrical conduit systems to join two tubes or thin-walled pipes together. . In instances where two pipes made of dissimilar materials are to be joined (most commonly PVC and copper), the fittings will be made of one or more compatible materials appropriate for the connect

  7. Automatic test switching - Wikipedia

    en.wikipedia.org/wiki/Automatic_test_switching

    Like a scan configuration, multiplex switching can be used to connect one instrument to multiple devices (1:N) or multiple instruments to a single device (N:1), but it offers much more flexibility than the scanner configuration because it permits multiple simultaneous connections and both sequential and non-sequential switch closures.

  8. Standard Commands for Programmable Instruments - Wikipedia

    en.wikipedia.org/wiki/Standard_Commands_for...

    SCPI was defined as an additional layer on top of the IEEE 488.2-1987 specification "Standard Codes, Formats, Protocols, and Common Commands". [4] The standard specifies a common syntax, command structure, and data formats, to be used with all instruments.

  9. Multimeter - Wikipedia

    en.wikipedia.org/wiki/Multimeter

    Analog multimeter Digital multimeter. A multimeter (also known as a volt-ohm-milliammeter, volt-ohmmeter or VOM) [1] is a measuring instrument that can measure multiple electrical properties. [2] [3] A typical multimeter can measure voltage, resistance, and current, [4] in which case can be used as a voltmeter, ohmmeter, and ammeter.