OHAUS Valor 1000W Service Manual

CHAPTER 1 GETTING STARTEDOhaus Corporation www.ohaus.com 1-4 Valor™ 1000W Series Service Manual4 7-segment, 6-digit LED display5 Center of Zero, Net, Stable, Sum, lb, kg indicators6 Over, Accept, Under Checkweigh indicators7 Control Buttons8 Adjustable feet9 Power input jackTABLE 1-3. FUNCTIONS OF DISPLAY CONTROLS1.6.2 Power ON/OFFTo turn the scale on, press the button On/Off on the control panel. The scale performs a displaytest, momentarily displays software version, and then enters the active weighing mode. To turnthe scale off, long press the button On/Off.The Valor 1000W can operate on either AC Power, with the included AC adapter, or on theinternal rechargeable battery. The scale automatically switches to battery operation if powerfails while the scale is on.Before using the scale for the first time, the battery should be fully charged for up to 12 hours.During charging, the battery Charge indicator remains lit. The scale can be operated duringcharging. The battery is protected against over-charging and the scale can remain connected tothe AC power line.1.7 HOW LOAD CELLS OPERATELoad Cells are devices that convert force into a signal. The Valor 1000W has a Strain GaugeLoad Cell, which is made from a metal beam with holes drilled in it. Strain gauges are affixed tothe beam at the top and bottom to measure changes in the beam due to deflection. The gaugesare bonded very securely to the metal, where they sense very small deflections in the metalcaused by the load being applied to the cell. Because the signal levels are very small, theButton Action FunctionShort Press Turns scale onLong Press Turns scale offMenu function Shift to next digit when setting parameters, or step through menu settingsPrimary function Sets display to zeroMenu function Confirm settingsLong Press Enters menu modeMenu function Save settings and exit the menuPrimary function Stores displayed weight in accumulation memoryDisplay accumulation data when display is at zeroMenu function Increment displayed value, or toggle through menu settingsPrimary function Tares weight of item on panMenu function Decrement displayed value, or toggle through menu settings