G&G GmbH | Basic Operation 15Weighting with tare: place the weighing box and press the [TARE] button. After standstill control the zerodisplay appears. The weight of the container is now internally saved. Weigh the material, the net weightwill be indicated. The weight of the weighing container will be displayed as a minus number after removingthe weighing container. The tare weight is saved until it is deleted. Remove the load from the balance andpress the [TARE] button. The tare procedure can be repeated as many times as necessary, for examplewith initial weighing of several components for a mix (add-on weighing). The limit is reached when thetotal weighing range capacity is full.9.3 LIGHT - [Display backlight]Press the [LIGHT] key to change the display’s backlight mode.[b ON] - Background illumination on. Display rich of contrast which can also be read in the darkness.[b OFF] - Backlight switched off to save battery.[b AUTO] - This display will appear backlit for weight value is not stable. When the weight value is stable,the display will be extinguished 3 seconds later.9.4 COUNT - [Pieces counting function]Before the balance can count parts, it must know the average part weight (i.e. reference). Proceed byputting on a certain number of the parts to be counted. The balance determines the total weight anddivides it by the number of parts, the so-called reference quantity (1, 10, 20, 50, or 100). Counting is thencarried out on the basis of the calculated average piece weight.As a rule: The higher the reference quantity the higher the counting exactness.Follow these steps:a) Press [COUNT]-key to change the balance into counting mode.b) Place as many pieces to add-up as required by the reference quantity. Press the [UNIT] button to enterthe setting menu. The display now shows the number "1" and the unit "Pcs".c) Using the [UNIT] button select the reference quantity (1, 10, 20, 50, or 100).d) After successful reference determination the current quantity is displayed and the unit “Pcs”.e) Remove reference weight. The balance is now in parts counting mode counting all units on theweighing plate.9.5 UNIT- [Weighing unit selection]Use the [UNIT]-key to choose weighing units: g (gram), ct (carat), ozt (troy ounce), oz (ounce), GN (gran),dwt (pennyweight) and lb (pound).1 g = 5 ct= 0.032150747 ozt= 0.035273962 oz= 15.43235835 GN= 0.643014931 dwt= 0.0022046226 lb9.6 CAL - [Calibration with external weight]The balance has an external calibration function.The adjustment procedures see chap. "External calibration”.