3B17 Analog Devices, 3B17 Datasheet

3B17

Manufacturer Part Number

3B17

Description

Wide Bandwidth LVDT/RVDT Input

Manufacturer

Analog Devices

Datasheet

1.3B17.pdf (8 pages)

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FEATURES

Isolates, amplifies, & filters signals from 4-, 5, or 6-wire

Linear Variable Displacement Transformers (LVDTs).

Isolates, amplifies, & filters signals from Rotary Variable

Displacement Transformers (RVDT).

Provides an AC excitation voltage of 1V rms to 5V rms at

frequencies between 1 kHz and 10kHz.

Module circuitry can withstand 130v rms at the input screw-

terminals.

All 3B17 series modules are mix-and-match and Hot

Swappable.

APPLICATIONS

Industrial signal amplification

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.

Wide Bandwidth LVDT/RVDT 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. 3B17 Functional Block Diagram

C (low-level input

www.analog.com

3B17

Related parts for 3B17

3B17 Summary of contents

Page 1

... Displacement Transformers (RVDT). Provides an AC excitation voltage of 1V rms to 5V rms at frequencies between 1 kHz and 10kHz. Module circuitry can withstand 130v rms at the input screw- terminals. All 3B17 series modules are mix-and-match and Hot Swappable. APPLICATIONS Industrial signal amplification Industrial signal isolation ...

Page 2

... Zero suppression can vary over +5V from the center setting. The current output can be independently adjusted over a +5% range for zero and span. In addition, the 3B17 is mix-and-match and hot-swappable with all 3B Series modules can be inserted or removed from any socket in the same backplane without disrupting system power. ...

Page 3

... Models Available Model Excitation Voltage 3B17-00 Externally Programmable 3B17- rms 3B17- rms 3B17- rms 3B17- rms 3B17-Custom * 3B17-D-00 Externally Programmable 3B17-D- rms 3B17-D- rms 3B17-D- rms 3B17-D- rms 1 Output current range may be user programmed using jumper supplied. ...

Page 4

... Includes the combined effects of repeatability, hysteresis, and nonlinearity. 3 With respect to the voltage output wide range of custom zero suppression and span is available with the 3B17-00 model, using the AC1310 ranging card. 5 Bandwidth can be set for up to 1/10 the excitation frequency when ordering Model 3B17-custom loop power is required for driving the current output at loads up to 850 voltage output is used, loop power is not required ...

Page 5

... PIN CONFIGURATIONS AND FUNCTIONAL DESCRIPTIONS Figure 3 3B17 Input Field Connections 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. ...

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3B17 Analog Devices, 3B17 Datasheet

3B17

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3B17 Summary of contents

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