v1.02
05/06/30
11
ES51918
11,000 Counts Auto DMM
1.2 Resistance Measurement
A re-configurable 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. In 110.00MΩ, if SHIFT pin connects
to V-, the least digit will not be displayed and the other digits and decimal point will
shift right away. So the full scale becomes 110.0MΩ instead of 110.00MΩ.
Configuration
Full Scale Range
Divider Ratio
Resister Connection
OR1
110.00Ω
R6
100Ω
OR2
1.1000KΩ
R5
1KΩ
OR3
11.000KΩ
R4
10KΩ
OR4
110.00KΩ
R1‖ R3
100KΩ
OR5
1.1000MΩ
R1‖ R2
1MΩ
OR6
11.000MΩ
R1
10MΩ
OR7
110.00MΩ
R1
10MΩ
1.3 Current measurement
ES51918 has 2 automatic and 1 manual current measurement modes for multimeter and
5 manual current measurement modes for clampmeter. The following table summarizes
the full-scale range of each mode. When ES51918 operate in the current measurement
modes for multimeter, It takes high input from pin IVSH or IVSL, low input from pin
SGND and reference voltage from pin VR. When ES51918 operate in the current
measurement modes for Clampmeter, It takes high input from pin ADP, low input from
pin SGND and reference voltage from pins VA+ and VA-. The test circuits are shown in
page 31.
Mode
Range Selection
Full Scale
Designed for
Automatic Mode 1
µA110.00µA / 1100.0µA
Multimeter
Automatic Mode 2
mA
11.000mA / 110.00mA
Multimeter
Manual Mode 1
A
11.000A
Multimeter
Manual Mode 2
A
1.1000A
Clampmeter
Manual Mode 3
A
11.000A
Clampmeter
Manual Mode 4
A
110.00A
Clampmeter
Manual Mode 5
A
1100.0A
Clampmeter
Manual Mode 6
A
11000A
Clampmeter
Note:
1. In Manual DC current measurement modes for clampmeter, ES51918 provides Zero function for offset
removing.
2. In Automatic mode1 and Automatic mode2, the pin VBAR is used to control the display of “µ” and
“m” sign on the LCD panel. If pin VBAR is floating or connected to DGND, the “µ” and “m” sign will
be displayed. If pin VBAR is connected to V-, the “µ” and “m” sign will not be displayed.
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
