Ohaus HJ2001 HARVARD JUNIOR MECHANICAL BALANCE Manual User Manual
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WEIGHING
To determine weight of object
•
Make sure that pointer is lined up with center graduation.
•
Place the object to be weighed on one pan/bowl. The pointer will swing to the same side as the object to be
weighed.
•
Place masses on other pan/bowl until the pointer is again lined up with the center graduation.
•
The weight of the object is the sum of the masses on the platform.
To compare the weights of two objects
•
Make sure that pointer is lined up with center graduation.
•
Place the first object to be weighed on one pan/bowl. The pointer will swing to the same side as the first object
placed on the scale.
•
Place the second object on the other pan/bowl. The pointer will point toward the heavier object.
CARE AND MAINTENANCE
The following practices will assure that your Balance will give you years of satisfactory and trouble-free service.
When the Balance is not in use, remove any heavy mass or weight from the Platforms. Replace the transportation/storage
locks to prevent oscillation and prevent unnecessary wear. The balance is designed to be stackable while being stored so
long as the transportation/storage locks are in place. Do not stack balances without the rubber storage locks secure. It is
not recommended that you stack the balances over 3 units high, and be sure that the stacked balances are stored in a
secure area where they cannot be easily knocked over and cause accidental harm or injury to students or teachers. Use
and store the Balance in places free of vibration.
Never lubricate the scale bearings. The Bearings in these Balances are high grade polished agate V-blocks and the knife
edges are hardened, precision-ground steel. This type of Bearing works most efficiently when clean and dry.
Keep the Balance clean at all times, being particularly careful not to let dirt accumulate in the vicinity of the Bearings. If the
Bearings should become dirty, try to clean them using an air syringe. The Model 106-00 Balance Cover is recommended
to keep the Balance clean when not in use.
SPECIFICATIONS
Capacity 2000g/ 5.0 lbs
Readability 0.5g
Platform size Plate & Bowl (in/cm) 6/15.2 diameter.
REPLACEMENT PARTS
Green Pan 150mm (HJ)
80252062
Yellow Pan 150mm (HJ)
80252063
Green Bowl 150mm (HJ)
80252064
Yellow Bowl 150mm (HJ)
80252065
Manual (HJ)
80252063
Transport/Storage Lock (HJ)
80252066
Activity Guide (HJ)
80252067
Balance Cover
106-00
WARRANTY 3 years
To protect your investment, register your product at
www.ohaus.com
and download 2 additional Harvard Jr. activities for
free. Please use the “Date Code” printed on the outside of the box when asked for the serial numbers during your
registration.
80252053*
P/N 80252053 REV 828
Printed in China