6CALIBRATIONYour HSDC hanging scale has been calibrated prior to shipment and should not require re-calibration before it is placed in service. A regular check of the instrument’s calibration should bemade to ensure that its weighing accuracy is maintained.To check the calibration of your HSDC hanging scale, you must have a calibrated test weight orweights equal to the scale’s capacity. Begin by making certain that the scale is unloaded and thatthe display is indicating zero weight. Load the scale with the test weight(s) and observe the weightdisplay. If the displayed weight is different from the total test weight value, calibration may benecessary. Note that a qualified scale technician should be consulted before any attempt atcalibration is made.NOTE! This scale is provided with a means of attaching a seal to prevent accessto the calibration switch.Calibration ProcedureStep 1. Remove the seals (if present) from the calibration cover plate, then remove the tworetaining screws and cover plate.Step 2. Hang the scale from a suitable support and attach the load receiving device. Press theOFF key. Using a straightened paper clip, press and hold the calibration switch whilepressing the ON/ZERO key. Release the calibration switch when the display showsint=.Step 3. Refer to the following steps and enter the required setup parameters.INTERVALPress the NET key to show the current setting. Then press the ON/ZERO key to selectthe desired value: 1-2-5. Press the NET key to save.int=Retaining ScrewCoverPlateUnderside ofScaleSeals