Chapter 4 Testing; Test Masses Required; Operational Test; Segment Display Test - OHAUS PA64 Service Manual

4.1 TESTING
Before and after servicing the balance, an operational test and various performance tests
should be made to confirm that the balance meets specifications. Turn the balance on and
allow it to warm up. After it reaches ambient temperature, allow it to run for at least one more
hour before performing these tests.
Make sure the test area is free from drafts and that the balance rests on a level
and vibration-free surface.

4.1.1 TEST MASSES REQUIRED

The masses required to test the Ohaus Pioneer balances must meet the requirements of ASTM
Class 1 or OIML E1 Tolerance. The mass values are listed in Table 4-1.
CAPACITY (g)
410/100
1500
2100
3100
4100/1000
4100
4.2

Operational Test

1. Connect a functioning Power Adapter to the balance power receptacle located at the
rear of the balance.
2. Plug the Power Adapter into a suitable power source.
4.3

Segment Display Test

Turn the balance on, and ensure that all segments are enabled and displayed briefly.
The balance's model number appears next, followed by a software revision number.
This is a Segment Display Test. Figure 4-1 is a full display test. (See Figure 4-1.)
Pioneer™ Balances Service Manual
TABLE 4-1. TEST MASSES REQUIRED
SPAN MASSES (g)
65
110
210
150
310
510
Figure 4-1. Segment Display
NOTE:
50
100
200
150
300
400
500
1500
2000
3000
4000
4000
4-1 Ohaus Corporation www.ohaus.com

CHAPTER 4 TESTING

LINEARITY MASSES (g)
20/50
50/100
100/200
100/150
150/300
200/400
200/500
1000/1500
1000/2000
1500/3000
2000/4000
2000/4000