OHAUS Valor 2000 Service Manual

Also see for CS 2000: User guide Instruction manual Operating manual Operating manual Operating manual

CHAPTER 3 MAINTENANCE PROCEDURESValor™ 2000 Series Service Manual 3-1 Ohaus Corporation www.ohaus.com3.1 PREVENTIVE MAINTENANCEOhaus scales are precision instruments and should be carefully handled, stored in a clean, dry,dust-free area, and cleaned periodically. Follow these precautionary steps:– When a scale has had chemicals or liquids spilled on it, all exterior surfaces should becleaned as soon as possible with warm water on a damp cloth.– Do not leave a mass on the scale when the scale is not in use.– Allow time for the scale to stabilize after moving it from an area which is at a differenttemperature than the area where it is to be operated. Allow one hour for each 5°F(2.7°C) temperature change before using the scale. After temperature stabilization,allow an additional 20 minutes after turning the scale on, for the scale electronics tostabilize.3.1.1 Preventive Maintenance ChecklistThe scale should be inspected and checked regularly, as follows:1. Remove the Pan and Sub Pan to inspect and clean the area beneath the Pan.2. Clean the outside of the scale using a damp cloth with warm water.CAUTIONDO NOT USE CHEMICAL CLEANERS OR SOLVENTS OF ANY TYPE.SOME CLEANERS ARE ABRASIVE AND MAY AFFECT THE SCALE’S FINISH.3. Check the Power Cord for broken or damaged insulation.4. If using the rechargeable battery and the scale malfunctions, first recharge thebattery to see if this resolves the problem.5. Make a visual inspection for faulty connectors, wiring, and loose hardware.3.2 SERVICE STRATEGYAll parts of the Valor 2000 or designed to be replaced rather than repaired. This includes theMain Printed Circuit Board (PCB), the Rear Display PCB, the Load Cell, the Power PCB, theRechargeable Battery, and the cables that connect them. For an illustrated list of replaceableparts, see Chapter 5.3.3 OPENING THE SCALEUse these procedures in order to replace the Load Cell, Battery, any of the Printed CircuitBoards, and/or LCD Displays.