Hardy Floor Scales - Manual (Page 21)

Hardy Floor Scales
12
Material
Substitution: • When certified test weights are not available
you can use an accurately weighed material
instead.
• The material must be weighed on a second-
ary, calibrated scale and delivered to the site
of the primary floor scale for calibration.
• The secondary calibrated scale should be of
the same accuracy or greater and have a
capacity approximately equal to the primary
floor scale.
SCALE VERIFICATION Step 1. Get a test weight that is equal to 10% of
the full scale capacity.
Step 2. Place the test weight at Position #1 on the
platform. (See Fig. 10)
FIG. 10 SCALE VERIFICATION/POSITION #3
Step 3. Write down the weight for position #1.
Step 4. Place the weight at position #2.
Step 5. Write down the weight for position #2.
Step 6. Place the weight at position #3.
Step 7. Write down the weight for position #3.
Step 8. Place the weight at position #4.
Step 9. Write down the weight for position #4.
Step 10. Check all the readings. If all the readings
are within an acceptable tolerance, no re-
calibration is required.
Position #3
Position #4 Position #2
Position #1
Summing Box