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ES51921 Fiches technique(PDF) 9 Page - Cyrustek corporation

No de pièce ES51921
Description  22,000 Counts Auto DMM
Download  35 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  CYRUSTEK [Cyrustek corporation]
Site Internet  http://www.cyrustek.com.tw
Logo CYRUSTEK - Cyrustek corporation

ES51921 Fiches technique(HTML) 9 Page - Cyrustek corporation

Back Button ES51921 Datasheet HTML 5Page - Cyrustek corporation ES51921 Datasheet HTML 6Page - Cyrustek corporation ES51921 Datasheet HTML 7Page - Cyrustek corporation ES51921 Datasheet HTML 8Page - Cyrustek corporation ES51921 Datasheet HTML 9Page - Cyrustek corporation ES51921 Datasheet HTML 10Page - Cyrustek corporation ES51921 Datasheet HTML 11Page - Cyrustek corporation ES51921 Datasheet HTML 12Page - Cyrustek corporation ES51921 Datasheet HTML 13Page - Cyrustek corporation Next Button
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Ver. 3.2
10/06/23
9
ES51921
22,000 Counts Auto DMM
1.1.5 Low-pass filter feature
ES51921 provides a 3-order low-pass filter to reduce the influence of high frequency
noise above 1KHz(3dB). This LPF feature is available in all ACV or clamp_meter
ACA modes. Set FC5 to low in these mode, the KEY bottom is use to activate the LPF
feature. Press KEY bottom for less than 1 second force meter enter LPF mode, and the
AC sign on LCD panel will blink until the LPF mode is canceled. When LPF is
activated, most of noise above 1KHz will decay greatly. So we can obtain more stable
and accurate readings on low frequency response.
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 220.00MΩ, 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 220.0MΩ instead of 220.00MΩ.
Configuration
Full Scale Range
Divider Ratio
Resister Connection
OR1
220.00Ω
R6
100Ω
OR2
2.2000KΩ
R5
1KΩ
OR3
22.000KΩ
R1∥ R4
10KΩ
OR4
220.00KΩ
R1∥ R3
100KΩ
OR5
2.2000MΩ
R1∥ R2
1MΩ
OR6
22.000MΩ
R1
10MΩ
OR7
220.00MΩ
R1
10MΩ
1.3 Current measurement for multimeter
ES51921 has 2 automatic and 1 manual current measurement modes for multimeter.
The following table summarizes the full-scale range of each mode. When ES51921
operates 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.
Mode
FC1~4
VBAR
Full Scale
Input Terminal
Automatic1
1,1,0,1
1
220.00µA / 2200.0µA IVSL/IVSH V.S. SGND
Automatic2
1,1,1,1
1
22.000mA / 220.00mA IVSL/IVSH V.S. SGND
Manual
0,0,0,0
X
22.000A
IVSH V.S. SGND
Note:
1. The typical connection of input terminal is as the schematic below:
IVSL
IVSH
Vin*
100K
100K
9R
R


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