Datakom DM-0301 Manual

Datakom DM-0301 Manual Manual pdf 1 page image

These state-of-the-art panel meters are designed foraccurate measurement of the AC RMS voltage, ACRMS current, frequency, active power and powerfactor in single-phase systems. The currenttransformer ratio can be set between 5/5A and5000/5A via front panel buttons.Devices have separate inputs for supply andmeasurement.The unit allows both manual selection of the displaychannel and automatic scrolling.Changing Display Selection:By using the MENU button, frequency, activepower and power factor can be selected and readfrom display.Every depression on the MENU button willdisplay the next measurement.60 seconds after the last keypress, the display willreturn automatically to the default display mode.However the defult display mode is selectable byprogramming.Any measured parameter can be set as the defaultdisplay. Automatic parameter scrolling is alsoprovided. Selections are stored into a non-volatilememory and is not affected from power failures.Press MENU buttonfor 3 sec.Press Up or Downbuttons untilrequested CurrentTransformer Ratio isdisplayed.Press MENU buttonfor saving currenttransformer ratio anddisplaying default selection.Press Up or Downbuttons untilrequested displaymode appears.0 – Auto scroll values every 5sec.1 = frequency2= active power3= power factorPress MENU button forsaving default selection andexit for settings. Do not open the unit. There is no serviceable partsinside. Fuses must be connected to the power supply andphase voltage inputs, in close proximity of the unit. Fuses must be of fast type (FF) with a maximumrating of 6A. Disconnect all power before working on equipment. When the unit is connected to the network do nottouch terminals. Short circuit terminals of unused currenttransformers. Do not try to clean the device with solvent or thelike. Only clean with a dry cloth. Verify correct terminal connections before applyingpower. Electrical equipment should be serviced only bycompetent service personnel. No responsibility isassured by the manufacturer or any of itssubsidiaries for any consequences arising out ofthe use of this material. Only for front panel flush mounting.Before installation Read the user manual carefully, determine thecorrect connection diagram. Remove all connectors and mounting bracketsfrom the unit, then pass the unit through themounting opening. Put mounting brackets and tighten. Do not tighten too much, this can brake theenclosure. Make electrical connections with connectorsremoved from sockets, then place connectors totheir sockets. Note that the power supply terminal is separatedfrom measurement terminals, with common neutralpoint.Current Transformers must beused for current measurement.No direct connection allowedFailure to follow belowinstructions will result indeath or serious injuryPRECAUTIONS FOR INSTALLATIONAND SAFE USESETTING THE CURRENTTRANSFROMER RATIOAND THE DEFAULT DISPLAYINTRODUCTIONDM-0301 DIGITAL MULTIMETERTRUE RMS 72x72mmMENUMENUMENU

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