Ohaus Corporation www.ohaus.com
48
Ranger 7000
®
Series Service Manual
4 TESTING
Before and after servicing a Ranger 7000
®
scale, an operational test and various performance tests
should be made to confirm if the scale meets specifications. Turn the scale on and allow it to warm up
for at least one hour before performing these tests. The Analytical models need up to 4 hours to
stabilize.
NOTE:
Make sure the test area is free from drafts and that the scale rests on a level and vibration-free
surface. The Analytical models especially need a solid platform, such as a stone table.
4.1 TEST MASSES REQUIRED
The masses required to test the Ohaus Ranger 7000
®
scales must meet the requirements of the
ASTM or OIML Tolerances listed in the table. Poor quality calibration masses be the can cause of
frustrating diagnostics.
TABLE 4-1
CALIBRATION MASS VALUES
Summary of Contents for Ranger 7000 R71MHD3
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