OHAUS EC SERIES Service Manual

Also see for EC Series: Instruction manual Instruction manual

Contents

OHAUS EC SERIES Service Manual Manual pdf 28 page image

3-14CHAPTER 3 SCALE TESTING AND CALIBRATION3.8 CALIBRATIONCalibration – The EC Series’ calibration can be calibrated using full scale capacity as the best method forthe most accurate results, this is referred to as span calibration.Calibration Weights – Before beginning calibration, make sure that the required calibration weights areavailable. The model-specific calibration points are listed in the Table 3-5.3.8.1 Calibration PointsNOTES: 1. Calibration Units kg or lb are selected in the (Setup mode) sub-menu.2. ASTM Class 4 or OIML Class F2 weights are required for calibration.3.8.2 Span Calibration1. Enter calibration by holding down the Zero button until CAL is displayed in the Count window.2. The required calibration weight is displayed (ex. 3000g for a 3kg model). At this time, a differentcalibration weight value can be entered via the numeric keypad.3. Place the corresponding calibration weight on the Pan. the display flashes until the actual weightis registered and the calibration process ends (the scale momentarily beeps before exiting tonormal weighing mode).NOTE: 1. Different values of calibration masses can be used on the EC scale, however, it is recommendedthat the calibration mass used is close to or matches the maximum capacity of the scale forbest accuracy.2. The calibration procedure can be canceled at any time by pressing the Zero button.Model Calibration Unit Span CalibrationEC3EC6EC15EC30kglbKglbkglb3 kg6 lb6 kg15 lb15 kg30 lb30 kg60 lbKglbTABLE 3-5. CALIBRATION POINTS.