Show hot to tead read an electric meter nc IV nc N by wm H kohzer FE E T VERY little study will enable the M to read recording consumer a recording wattmeter at a moments notice electric meters may be divided into two general classes those that are direct reading and those in which the dial reading must be multiplied by a constant in order to get the true record the unit of measure is a watt hour that is one watt acting for one hour of C aa V V too A P 1 I 1 I oe C C KILOWATTS time or any other amount of power and interval of time which when multiplied by one another will equal one watt hour in very large instruments the kilowatt hour 1000 watts per hour is sometimes used the meters usually furnished have five dials with a series of gears arranged so as to move the pointers of the first third and fifth dials to register clockwise or vice versa it iao W L go Z WATTS X BY MULTIPLE being understood that the pointers of all five circles are always in simultaneous movement in the first illustration the dial on the extreme right registers one kilowatt when hen the pointer has made a complete revolution and the dial being divided into ten part number representing one tenth kilowatt or one hundred watts each succeeding dial registers ten times as much as the preceding one 7 16 0 4 1 19 aw C 41 3 0 0 73 g WATTS X BY MULTIPLE and hence each pointer moves ten times faster than its successor that is the next dial to the left lef t records kilowatts on the middle dial each number represents ten kilowatts the next dial to the left lef t one hundred kilowatts and the extreme left hand dial one thousand kilowatts when reading a meter begin at the right and read the lowest figure of the two between which the pointer lies on each dial writing the numbers down in regular order from right to left i e tenths units tens hundreds thousands when the pointer appears to be exactly on a mark the next lower dial on the left determines whether it is to be read at that figure or at the next lower one the quantity of electricity which has passed through the meter in any given period for instance a month or the last date is ascertained by reading from the indexes the total amount registered and deducting the quantity shown by the indexes at ata a previous observation the register at all times shows the amount that has passed through since the meter was first set and deducting the amount that has been paid for without any regard to the time when set we obtain vie tie amount remaining unpaid in the foregoing illustrations the meter face records watts instead of kilowatts but they are read precisely the same and then multiplied by the constant marked on each meter face to give the true re reading adina of this particular meter the constant or multiplier will be found to vary in different meters of this type and is not infrequently 1 which is equivalent to a direct reading gas and water meters are read in the same way as the abaye meters |