124.3 OPERATION WEIGHING,SAMPLING AND COUNTING, Cont.4.3.6 TO ZERO THE GROSS WEIGHT1. With the display in weight or count mode...2. Press the ZERO key. The tare weight will be set to zero and a new gross weightcenter of zero point will be established. If the display was in count mode, thecount will be set to zero. If the display was in the weight mode, a zero grossweight will be displayed and the GROSS indicator will illuminate. In either case,the ZERO indicator will illuminate.4.3.7 TO ENTER A KNOWN TARE WEIGHT1. With the scale in any weight or counting mode...2. Press the TARE key. The display will show the previously entered tare weightand the TARE indicator will illuminate.3. Key in desired tare: pounds with decimal point followed by ENTER; orpounds-ENTER, ounces-ENTER (depending upon the weight units in effect).4. The scale will change to weight mode. Gross weight will be displayed if the tareis zero, and the GROSS indicator will illuminate. If the tare is non-zero, netweight will be displayed (gross minus tare) and the NET indicator will illuminate.4.3.8 COUNTING WITH A KNOWN AVERAGE WEIGHT PER PIECE1. Press the WT/PC key.2. Key-in desired average piece weight value in decimal pounds format only via thenumeric keypad followed by ENTER. Place items to be counted on scale thenpress the COUNT key.3. Read count on display.4.3.9 TO DISPLAY WEIGHT PER PIECE OR PIECE PER WEIGHT1. To display the average weight per piece, based on the most recent sample,press the WT/PC key.2. To display the average number of pieces per pound, press the PC/WT key. Theappropriate indicator will illuminate.4.4 TEST MODE OPERATION4.4.1 To Enter the Test Mode1. Press the test mode pushbutton located on the bottom of the scale. It will benecessary to lift one side of the scale to gain access to this button. (see figure8.1)2. The selection of the test mode is indicated by a "T" shown at the rightmostdisplay position.3. While in the test mode note that the only keys that are active are the lb, lb-oz,and zero keys. All others are disabled.4. While in the test mode the weight will be displayed in graduations of 0.01 ounceor 0.001 pound.4.4.2 To Exit The Test Mode1. Press the test mode pushbutton a second time to resume normal operation. The"T" in the display will be replaced by a "1" to indicate selection of the normaloperating mode and scale no.1. (see figure 8.1)