OHAUS FD3 Instruction Manual

Also see for FD15: Instruction manual Service manual User guide Quick start guide Instruction manual

OHAUS FD3 Instruction Manual Manual pdf 14 page image

EN-12 FD Series ScalesNegative CheckweighingIn “Negative” checkweighing, the part of an item subsequently removed from the pan is checked againstthe target limits. This method may be preferred in portioning applications.• Set both targets as negative values, where the lightest acceptable weight is entered as the Undertarget limit and the heaviest acceptable weightis entered as the Over target limit.• Place a quantity of items on the pan.• Tare the items.• Remove a portion of the items from the pan.• The amount removed will be compared to the targets.“Zero” CheckweighingIn ”Zero” checkweighing, displayed results will show the deviation of the sample’s weight from a referenceor ideal weight. This approach may be more preferred for grading or sorting applications.• Set the targets using a negative value (negative tolerance) for the Under limit and a positive value(positive tolerance) for the Over limit.• Place the reference weight on the pan.• Tare the reference weight and remove it from the pan.• Place the item on the pan to be checked against the reference weight.• The display will show a negative, positive or ‘0” value if the sample is less than, more than or equalto the reference weight, respectively.3.6 Checkweigh Target SettingsTo set the target limits, begin by pressing the TARGET button. The value of the Under target limit will bedisplayed first, with the left-most digit blinking.Note: The scale must be in checkweigh mode to be able to enter or modify target values.• To change the Under target limit, press the No button to increment the flashing digit, the Yes buttonto shift to the next digit and the Exit button to change the sign.• Press the TARE button to toggle the display between a positive and negative value.• To accept the Under target limit, press the TARGET button.• Next, the value of the Over target limit will be displayed, with the left-most digit blinking.• Repeat the procedure above to set the Over target limit.• When the Over target limit has been set, press the TARGET button to store the settings and beginCheckweighing.