CHAPTER 4 TESTINGOhaus Corporation www.ohaus.com 30 Navigator Series Service Manual4.5.3 Linearity TestThis test is used to determine the linearity of the unit throughout its operating range. The massesused to perform this test can be utility masses.NOTE:The scale must pass the Precision and Repeatability Tests, and be calibrated before theLinearity Test may be performed.TABLE 4-4 LINEARITY TEST MASSESModel Reference Wt. Load 1 Load 2 Load 3NV212 50g 50g 100g 150gNV311(N or M) 75g 75g 150g 225gNV511 125g 125 250g 375gNV1101 250g 250g 500g 750gNV2101 500g 500g 1000g 1500gNV4101 1000g 1000g 2000g 3000gNV5101 1250g 1250g 2500g 3750gNVL511 125g 125 250g 375gNVL1101 250g 250g 500g 750gNVL2101 500g 500g 1000g 1500gNV3100(N or M) 750g 750g 1500g 2250gNVL5101 1250g 1250g 2500g 3750gNVL10000 2500g 2500g 5000g 7500gNVL20000 5000g 5000g 10000g 15000gNVT1601 400g 400g 800g 1200gNVT1601(N or M) 400g 400g 800g 1200gNVT3201 750g 750g 1500g 2250gNVT3200(N or M) 750g 750g 1500g 2250gNVT6400(N or M) 1500g 1500g 3000g 4500gNVT6401 1500g 1500g 3000g 4500gNVT10001 2500g 2500g 5000g 7500gNVT16000 4000g 4000g 8000g 12000gNVT16000(N or M) 4000g 4000g 8000g 12000gNOTE: All masses are nominal values. Be certain to use the same reference mass throughout theprocedure.2. Place the test mass on the Scale, record the weight and remove.3. Place Load 1 on the Scale and press TARE.4. Place the test mass on the Scale, record the weight and remove.5. Place Load 2 on the Scale and press TARE.6. Place the test mass on the Scale, record the weight and remove.7. Place Load 3 on the Scale and press TARE.8. Place the test mass on the Scale and record the weight.