OHAUS HH 320, Operating Manual

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Four Button Keypad
• On/Off : Pressing this button turns on the scale. Pressing and holding
this button turns the scale off.
• Zero: Pressing this button operates the zero feature when the scale is
on.
• Unit/Cal: Press this button briefly to change the weighing unit. The
following weight units may be selected: grams (g), ounces (oz),
pennyweight (dwt), or troy ounces (oz t). Press and holding this button
begins the calibration process.
• Light Button: Pressing this button turns on the EL back light on for
10 seconds.
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 Unit/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 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 the On/Off 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.
g
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