OHAUS Navigator Series, Руководство по обслуживанию

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CHAPTER 4 TESTING
Navigator Series Service Manual 19 Ohaus Corporation www.ohaus.com
4 TESTING
Before and after servicing a Navigator scale, an operational test and various performance tests should
be made to confirm that the scale meets specifications. Turn the scale on and allow it to warm up for
at least one hour before performing these tests.
NOTE:
Make sure the test area is free from drafts and that the scale rests on a level and vibration-free
surface.
4.1 TEST MASSES REQUIRED
The masses required to test the Ohaus Navigator scales must meet the requirements of ASTM
Class 4 or OIML F2 Tolerance. The mass values are listed in Table 4-1.
TABLE 4-1 CALIBRATION MASS VALUES
Model
Span
Calibration mass
Linearity
Calibration masses
NV222 200g 100g, 200g
NV422 200g 200g, 400g
NV622
300g 300g, 600g
NV221
200g 100g, 200g
NV621 600g 300g, 600g
NV1201 500g 500g, 1kg
NV2201 1kg 1kg, 2kg
NVT1601M 1kg 1kg,1.5kg
NVT2201
1kg 1kg, 2kg
NVT4201 2kg 2kg, 4kg
NVT6201 5kg 3kg, 6kg
NVT2200 1kg 1kg, 2kg
NVT3200M
2kg 2kg, 3kg
NVT6200 5kg 3kg, 6kg
NVT6400M 5kg 3kg, 6kg
NVT12000 5kg 5kg, 10kg
NVT16000M 10kg 10kg, 15kg
NVT22000 10kg 10kg, 20kg
NV123 100g 50g,100g
NV223 200g 100g,200g
NV323 300g 150g,300g
NV1202 1kg 500g,1kg
NV2202 2kg 1kg,2kg
NV3202 3kg 1.5kg,3kg
NVT10201 5kg 5kg,10kg