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03/10/09
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ES51986
6000 Count AUTO DMM
Figure 1. Ture RMS measurement using ES636
1.2 Resistance Measurement
A reconfigurable divider automatically provides a suitable full scale range in resistance
measurement mode. The following table summarizes the full scale ranges and the
reference resistors in each configuration.
Configuration
Full Scale Range
Divider Ratio
Resister Connection
OR1
600.0Ω
R6
100Ω
OR2
6.000KΩ
R5
1KΩ
OR3
60.00KΩ
R4
10KΩ
OR4
600.0KΩ
R1‖ R3
100KΩ
OR5
6.000MΩ
R1‖ R2
1MΩ
OR6
60.00MΩ
R1
10MΩ
1.3 Current measurement
Current measurement has three modes. The following table summarizes the full scale
range of each mode.
Mode
Range Selection
Full Scale
Automatic Mode 1
µA
600.0µA / 6000µA
Automatic Mode 2
mA
60.00mA / 600.0mA
Automatic Mode 3
A
60.00A / 6.000A
Manual Mode
A
60.00A
1
2
3
4
5
6
7
14
13
12
11
10
8
9
+Vs
-Vs
150
470K
500K
+Vs
Cav
-Vs
ADI
ADO
ACVH
ACVL
100
1K
10K
101K
1.11M
OVSG
OR1
VR5
VR4
VR3
VR2
200
ACV