3b47-t-06 Analog Devices, Inc., 3b47-t-06 Datasheet

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3b47-t-06

Manufacturer Part Number
3b47-t-06
Description
Isolated, Linearized, Thermocouple Input
Manufacturer
Analog Devices, Inc.
Datasheet
FEATURES
Interfaces, amplifies, filters, isolates, & linearizes analog
input voltages from a J, K, T, E, R, S or B-type thermocouple
Thermocouple input signal is internally linearized
High accuracy internal cold junction compensation.
Module provides +1500 V peak of galvanic transformer-
based isolation with a common mode rejection (CMR) of 160
dB @ 50/60 Hz and a normal mode rejection (NMR) of 60 dB
@ 50/60 Hz.
All 3B47 series modules are mix-and-match and Hot
Swappable.
APPLICATIONS
Industrial signal conditioning
Industrial signal isolation
Industrial signal filtering
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, RTD’s, 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.
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 user’s equipment.
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.
Isolated, Linearized, Thermocouple Input
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.
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.
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/
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.
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
FUNCTIONAL BLOCK DIAGRAM
Figure 1. 3B47 Functional Block Diagram
© 2004 Analog Devices, Inc. All rights reserved.
o
C (low-level input
www.analog.com
3B47

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3b47-t-06 Summary of contents

Page 1

... High accuracy internal cold junction compensation. Module provides +1500 V peak of galvanic transformer- based isolation with a common mode rejection (CMR) of 160 dB @ 50/60 Hz and a normal mode rejection (NMR 50/60 Hz. All 3B47 series modules are mix-and-match and Hot Swappable. APPLICATIONS Industrial signal conditioning Industrial signal isolation ...

Page 2

... GENERAL DESCRIPTION The 3B47 is a single-channel isolated thermocouple signal- conditioning module which interfaces, amplifies, isolates, protects, linearizes and filters analog input voltages from B-type thermocouple. The thermocouple input signal is internally linearized to provide an output voltage which is linear with temperature, High accuracy internal cold junction compensation and a predictable upscale open circuit indication provide a complete signal conditioning solution ...

Page 3

... Models Available Model Input Type 3B47-J-01 Type J 3B47-J-02 Type J 3B47-J-03 Type J 3B47-K-04 Type K 3B47-K-05 Type K 3B47-T-06 Type T 3B47-T-07 Type T 3B47-E-08 Type E 3B47-R-09 Type R 3B47-S-10 Type S 3B47-B-11 Type B 3B47-Custom Type The CJC sensor accuracy (refer to specification table) should be added to the module accuracy when computing system accuracy. ...

Page 4

... Temperature Range Rated Performance Storage Relative Humidity RFI Susceptibility 1 Current output is not available with model 3B47. 2 Includes the combined effects of repeatability, hysteresis, and nonlinearity wide range of zero suppression and span adjustment is available to enable field calibration. 4 When used with the CJC temperature sensor provided on the 3B Series backplane. Specifications subject to change without notice. ...

Page 5

... PIN CONFIGURATIONS AND FUNCTIONAL DESCRIPTIONS Figure 3 3B47 Input Field Connections Table 1. Pin Function Descriptions— Pin No. Description 1 N N/C ESD CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges ...

Page 6

... OUTLINE DIMENSIONS Figure 5. Outline Dimensions Rev Page 3B47 ...

Page 7

... NOTES Rev Page 3B47 ...

Page 8

... NOTES © 2004 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective companies. D05162-0-9/04(0) Rev Page 3B47 ...

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