OS 1000
5
1. INTRODUCTION
This manual contains installation and operation instructions for the OS Series Scales. Please read the manual
completely before using the scale.
1.1 Safety Precautions Please follow these safety precautions:
• Verify that the AC Adapter input voltage matches the local AC power supply.
• Use the scale only in dry locations.
• For best results, use the scale in the specified optimum operating temperature.
• Do not operate the scale in hostile or unstable environments.
• Use your scale with care, gently loading items to be weighed onto the center of the pan. Avoiding rough
treatment will aid in the life of your scale.
1.2. General Product Features
• Power Up test: When the scale is turned on, all display segments will be displayed for a few seconds,
indicating that the unit is self adjusting to zero. Once the “0” is displayed, the scale is ready for use.
• Stable Reading indication: A star indicator will appear in the lower left corner of the display when a stable
reading has been reached.
• Overload: If the applied load exceeds the capacity of the scale, an “E” will appear on the display and the load
should be removed immediately. The scale will return to normal operation.
• Tare Function: Values can progressively be added to a sample. By pressing the ON/ZERO OFF button, the
scale display returns to zero. After adding additional mass, press ON/ZERO OFF to zero the scale again.
Additional mass may be added up to the capacity of the scale.
• Negative Value: When a load is removed from the scale, any zeroed value will be displayed as a negative
number. To return to normal operation, the zeroed value can be cancelled by pressing ON/ZERO OFF button.
• Low Battery Indication: The display will show “Lo” when the batteries are weak and need to be replaced.
Auto Shut-Off: To extend battery life, the scale will automatically turn off after approximately (4) minutes if
no active weighing is occurring. This feature is active with battery operation only.
2. INSTALLATION
2.1 Power Power the scale using the AC power adapter (not included) or 3 AA batteries.
Battery Installation Remove the battery cover on the bottom of the scale and place the 3 “AA” size batteries into
the compartment as indicated. Do not use excessive force or press the weighing pan. Re insert the battery cover.
AC Power Connection Connect the AC adapter (not included) to the receptacle at the rear of the scale. Plug the
AC adapter into a properly grounded electrical outlet.
