OHAUS HH 120D, Operating Manual

Page: 3 / 40

3
Calibration
For best results, calibrate the scale at regular intervals. This is especially
important if the scale is in use for prolonged periods.
• Pressing and holding the Cal button starts the
calibration process. The display should show CAL.
• The calibration process can be aborted by turning the
scale off.
• Press the On/Off Zero button to capture 0. The
display shows -C- while the scale stores the the zero
load signal.
• The display will show C 100 where 100 is the
calibration weight in grams.
• Place the appropriate calibration weight on the
platform.
• Press On/Off Zero button.
• The display shows -C- while the scale stores the
calibration point signal.
• After span capture, the display returns to the
normal weighing mode.
• The message AL E then E will appear if the
calibration steps are not followed or the wrong weight
was used.
Two Button Keypad
• On/Off Zero: Pressing this button turns on the scale. This same button
operates the zero feature when the scale is on. Pressing and holding this
button turns the scale off.
• Cal: Press and hold this button to begin the calibration process.
g
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TEXT.pmd 3/23/2005, 10:04 AM 3