HD Series Counting Scale, 3 displays

HD Series Counting Scale 30lb, 3 displays, 10 key operationHD Series of high capacity counting scales offer high internal resolution. A&D's exclusive Automatic Count Accuracy Improvement corrects errors caused by variation in unit weights.IncludesAC AdapterManualFeaturesEasy to Store Unit Weight - Storing the unit weight is simple and easy with [SAMPLE] key and [ENTER/M+V PRT ] key. With B type, keyboard input of the unit weight.Accurate Piece Counting - Built-in Automatic Counting Accuracy Improvement ( ACAI) function assures accurate piece counting operation by re-calculating unit weight as more pieces are added.M+ Memory - You can accumulate piece count data by pressing [ENTER/M+./PRT ] key or automatically each time you count. Total piece count and number of additions be shown on the display or sent via optional interfaces.Comparator Function - You can set the upper and lower limits for weights or piece count and Comparator function gives you the results on the display and / or by buzzer. Also the results can be output using the optional comparator/relay output (HD-04).Serial Interface (HD-03)- An optional RS-232C serial interface allows the instrument to communicate with a personal computer to control the scale and / or to record counting data. It also provides an output for a printer.Comparator/Relay Output - Compared results can be output as a relay signal withthe optional comparator/ relay output (HD-04).Three Power Sources - The scale is designed to be operated with an AC adapter, but may be also operated on six AM2 ( 'C' type) 1.5V dry batteries or a rechargeable NiCd battery pack (AD-1681).