Page 10 - Voltech Instruments PM3000A Universal Power Analyser, designed and produced by Connell Marketing Associates, UK
P. 10

Menus and Other Functions

    The PM3000A provides a host of programmable functions to meet almost every power
    analysis need. These programs can be stored in non-volatile memory and recalled at
    will.

    SCAL    SCALING
    - ING
            This menu enables the user to scale the readings of the PM3000A to suit
            the ratio of external voltage and current transducers. If required inputs
            may be individually scaled to match calibrated transducers.

     INTEG  INTEGRATOR
    -RATOR
            This function provides access to the integrator set up menus. The
            integrator is very flexible and can be programmed to operate in response
            to :-

            i) Manual control. Integration started and stopped from front-panel push
               buttons.

            ii) External control. Integration under remote control via a connector on
               rear panel.

            ii) Time control. Integration controlled by the real-time clock. User can
               set:- Start time and date.

                      Stop time and date.

                      Reset interval (for registering maximum demands).

                      Time bands (for measuring consumption in different tariff
                      bands).

    INTER   INTERFACE
    -FACE
            This menu programs the digital and analog interfaces of the PM3000A

            IEEE. Sets up IEEE address for system application

            RS232. Sets up baud rate and configures instrument for RS232 data
            transfer

            PRINTER. For Centronics printer. Sets up measurement functions for
            printout, and the printout interval

            RECORDERS. 8 recorder outputs are available. These are individually
            programmed by the user for measurement function, and also for range, to
            optimize resolution. They can act as programmable alarms (eg PF < 0.7).

            ANALOG. The real time input voltage and current waveforms can be
            output to the analog outputs in this mode.

            AUXILIARY. (PM3000A-001 version only) Sets up motor torque shaft
            speed and power measurement. Motor efficiency is also measured.

    DATA    DATA LOG
    LOG
            The PM3000A can record and analyze short term events, from a few
            milliseconds, up to several seconds. The waveforms are recorded, and
            power parameters previously set up on the parallel interface menu, are
            printed after analysis.

            Data logging can be triggered manually, or triggered externally using the
            ‘integrator’ input on rear panel. The waveforms themselves are available
            on the ‘analog’ outputs. For example, the short-circuit current, power
            and power factor due to an earth fault can be easily measured and
            analyzed by using this function.

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