OHAUS Valor 3000 Service Manual

Also see for Valor 3000: Instruction manual Instruction manual Instruction manual Instruction manual Quick start guide

Contents

CHAPTER 4 TESTING4.5.2 Repeatability TestRepeatability is the Standard Deviation of a set of similar weight readings.Requirements:– To perform this test a single mass must be used for all readings.– The test mass should be approximately ½ of the capacity of the instrument.– Wear gloves when handling the mass.Before starting a repeatability test, set up the instrument as follows:Set Up:Enter the menu and adjust and record the following settings:A. Set the Stability setting to its lowest setting.B. Set the Filter level to medium or the center of its range.C. Set the AZT (Auto Zero Tracking) to .5d or its lowest setting. Do not turn it off.D. Set the instrument to display the same units as the performance specifications.(Usually kg, g, or mg)Record Settings:Stability Setting = ____________Filter Level Setting = ____________Auto Zero Tracking Setting = ____________Displayed Units = ____________Mass Used = ____________TEST PROCEDURE:1. Zero the instrument.2. Using a test mass approximately half the capacity of the instrument, place the mass onthe center of platform. Record the reading on the worksheet provided.3. Remove the mass from the platform.4. Repeat this test starting at Step 1 until you record a total of ten readingsFill in the worksheet (Table 4-3) with the ten (10) readings.Valor™ 3000 Series Service Manual 4-3 Ohaus Corporation www.ohaus.com