OHAUS EB SERIES, Руководство по обслуживанию

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CHAPTER 4 FINAL TESTING & CALIBRATION
Ohaus Corporation www.ohaus.com 4-6 EB Series Scales Service Manual
4.2. CALIBRATION
Calibration
– The EB Series’ calibration can be calibrated using full scale capacity as the best
method for the most accurate results, this is referred to as span calibration.
Calibration Weights
– Before beginning calibration, make sure that the required calibration
weights are available. The model-specific calibration points are listed in the Table 3-5.
4.2.1 Calibration Points
TABLE 4-2. CALIBRATION POINTS
MODEL CALIBRATION UNIT SPAN CALIBRATION
EB3 kg 3 kg
EB6 kg 6 kg
EB15 kg 15 kg
EB30 kg 30 kg
Notes:
1. Calibration Units kg are selected in the (Setup mode) sub-menu.
2. ASTM Class 4 or OIML Class F2 weights are required for calibration.
4.2.2 Span Calibration
1. Enter calibration by a long press of Zero and COUNT at the same time to initiate
calibration.
2. The required calibration weight is displayed (ex. 3000g for a 3kg model). At this time,
a different calibration weight value can be entered by pressing
▲.
3. Place the corresponding calibration weight on the Platform. The display flashes
until the actual weight is registered and the calibration process ends (the scale
momentarily beeps before exit ing to normal weighing mode).
Notes:
1. Different values of calibration masses can be used on the EB scale; however, it is
recommended that the calibration mass used is close to or matches the maximum
capacity of the scale for best accuracy.
2. The calibration procedure can be canceled at any time by turning the scale off.
3. If needed, the factory default calibration value can be recovered. As the scale is
turned on, press TARE and COUNT at the same time during power-on sequence.
The power-on sequence will re-cycle and the scale will re-initiate with the default
calibration.