Clear Zero - Applent Instruments Anbai AT2511 User Manual

Table 3-1 Range no., reference Resistance and Range change process
NO.
1
2
3
4
5
6
7
8
AT511C will choose the fit range to measure according to the following table:
Table 3-2 AT511C Range no., reference Resistance and Range change process
NO.
1
2
3
4
5
6
Press AUTO key can switch AUTO Range/ Range Hold
Use Manual Range can effectively improve test speed.
If instrument can't choose suitable Range under status of AOTO Range, please perform clear
Tip：
zero.
About clear zero operation, please refer to "clear zero" section.

3.6 Clear Zero

To achieve high accuracy measurement, clear zero in necessary.
1 ． Press Clear key the Clearing status and make the test clips short-circuit like the following way
before zeroing.
Figure 3-4 Right way
Reference
Resistance
50mΩ
50mΩ
500m

500m
5

5
50 
50

500
500

5k
5k

50k
200kΩ
200kΩ
Reference
Resistance
500m

500m
5

5
50

50
500

500
5k

5k
50k
49mΩ

490m

4.9

49

490

4.9k

49kΩ

490m

4.9

49

490

4.9k
Start up
13