參數(shù)資料
型號(hào): ES51983
廠商: Electronic Theatre Controls, Inc.
英文描述: 3 3/4 CAP AUTO DMM
中文描述: 3 3 / 4第汽車(chē)數(shù)字多用表
文件頁(yè)數(shù): 6/20頁(yè)
文件大?。?/td> 275K
代理商: ES51983
03/01/16
ES51983
3 3/4 CAP AUTO DMM
Function Description
1.
Operating Modes
1.1
Voltage Measurement
A reconfigurable voltage divider automatically provides a suitable range in voltage
measurement mode. The following table summarizes the full scale ranges in each
configuration.
Configuration
VR1
VR2
VR3
VR3
VR5
1.
400.0mV range only exists in manual mode.
2.
In the 4000V range, if the digit numbers is larger than 1000V, LCD will display
“OL”.
The measurement of true RMS using ES636
If ES636 (or other true RMS-to-DC converter chip) is used for true RMS measurement,
the suggested application circuit is shown below. When ES636 is used for true RMS,
ADO and ADI pin short together, TEST5 pin keeps floating, and ACVL pin connects to
SGND.
Full Scale Range
400.0mV
4.000V
40.00V
400.0V
4000V
Divider Ratio
1
1/10
1/100
1/1000
1/10000
Resister Connection
-
R2 / (R1+R2)
R3 / (R1+R3)
R4 / (R1+R4)
R5 / (R1+R5)
1
2
3
4
5
6
7
14
13
12
11
10
E
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
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