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3B32

更新时间: 2024-02-12 18:25:12
品牌 Logo 应用领域
亚德诺 - ADI 模拟IC信号电路
页数 文件大小 规格书
8页 353K
描述
Isolated, Process Current Input

3B32 技术参数

生命周期:Contact ManufacturerReach Compliance Code:unknown
风险等级:5.03电路保护类型:THERMAL MAGNETIC
Base Number Matches:1

3B32 数据手册

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Isolated, Process Current Input  
3B32  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
Interfaces, amplifies, & filters a process-current input.  
Process-current input signals are measured by reading the  
voltage across an external precision 100resistor (supplied  
with module).  
Module provides simultaneous precision voltage and  
current outputs.  
Module circuitry can withstand 220v rms at the input screw-  
terminals.  
All 3B32 series modules are mix-and-match and Hot  
Swappable.  
Figure 1. 3B32 Functional Block Diagram  
Output modules accept 0 to +10V (or +10V) single-ended  
signals and provide an isolated 4-20 mA (or 0-20 mA) process  
signal. All modules feature a universal pin-out and may be  
readily hot-swapped under full power and interchanged without  
disrupting field wiring.  
APPLICATIONS  
Industrial signal conditioning  
Industrial signal isolation  
Industrial signal filtering  
The Analog Devices 3B Series Signal Conditioning Subsystem is  
designed to easily handle signal conditioning problems in  
measurement and control applications. Some typical uses are in  
microcomputer-based data acquisition systems, programmable  
controllers, analog recorders, dedicated control systems, and any  
other applications where monitoring of temperature, pressure,  
flow and analog signals are required. Since each input module  
features two simultaneous outputs, the voltage output can be  
used to provide an input to a microprocessor-based data  
acquisition or control system while the current output can be  
used for analog transmission, operator interface, or an analog  
backup system.  
PRODUCT OVERVIEW  
The 3B Series of Signal Conditioning I/o Subsystems provide a  
low-cost, versatile method of transferring analog transducer  
signals to a data acquisition, monitoring or control system  
without the inherent noise, non-linearity, drift and extraneous  
voltages. The modules are designed to directly accept analog  
signals from Thermocouples, RTDs, AC and DC Strain Gages,  
Torque Transducers, Frequency Transducers, LVDTs, millivolt  
or process current signals. The modules amplify, isolate,  
linearize and convert the transducer output signals to  
standardized analog inputs for high-level analog I/O  
subsystems. The 3B Series Subsystem consists of a 10” relay  
rack with universal mounting backplane and a family of plug-in  
(up to 16 per rack) input and output signal conditioning  
modules.  
Each input module is a single-channel signal conditioner which  
plugs into a socket on the backplane and accepts its signal from  
the input screw terminals. All input modules provide input  
protection, amplification and filtering of the input signal,  
accuracy of +0.1%, low drift of +1 uV/oC (low-level input  
modules), and feature two high-level analog outputs that are  
compatible with most process instrumentation. The isolated  
input modules also provide +1500 V peak isolation.  
Eight and four channel backplanes are also available. Each  
backplane incorporates screw terminals for sensor inputs and  
current outputs and a 26-pin connector for high-level single-  
ended voltage outputs to the users equipment.  
The choice of a specific 3B module depends upon the type of  
input signal. Input modules are available to accept millivolt, volt,  
process current, thermocouple, RTD, AC and DC strain gage,  
frequency and LVDT inputs. The voltage output of each module  
is available from the system I/O connector while the current  
output is available on the output screw terminals.  
The input modules feature complete signal conditioning  
circuitry optimized for specific sensors or analog signals and  
provide two simultaneous high-level analog outputs: 0 to +10V  
(or +10V) and 4-20 mA (or 0-20 mA).  
Rev. 0  
Information furnished by Analog Devices is believed to be accurate and reliable.  
However, no responsibility is assumed by Analog Devices for its use, nor for any  
infringements of patents or other rights of third parties that may result from its use.  
Specifications subject to change without notice. No license is granted by implication  
or otherwise under any patent or patent rights of Analog Devices. Trademarks and  
registered trademarks are the property of their respective companies.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.326.8703  
www.analog.com  
© 2004 Analog Devices, Inc. All rights reserved.  

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