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PCLD-789D

Description
Amplifier and Multiplexer Board
File Size528KB,1 Pages
ManufacturerAdvantech
Websitehttp://www.advantech.com/
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PCLD-789D Overview

Amplifier and Multiplexer Board

PCLD-789D
Amplifier and Multiplexer Board
Features
Multiplexes 16 differential inputs to one A/D input
Expands a PC-LabCard™ product’s analog inputs to 128 channels
High-grade instrumentation amplifier provides switch selectable gains of 1, 2,
10, 50, 100, 200, 1,000
Onboard cold-junction compensation circuits for direct thermocouple
measurement
Built-in signal conditioning functions include filter, attenuator and current
shunt
Second connectors onboard allow daisy chaining
Screw-clamp terminal blocks permit easy and reliable connections
Introduction
PCLD-789D is a front-end signal conditioning and channel multiplexing daughterboard for use with PC-LabCard™ product’s analog input ports. It multiplexes 16 differential input
channels into a single A/D converter input channel. You can cascade up to ten PCLD-789Ds, allowing a single data acquisition card to access 160 analog input channels.
PCLD-789D has DB37 and 20-pin flat cable connectors and lets your PCL-818L or PCL-818HD access up to 128 channels without using an additional digital output cable to select
channels. The PCLD-789D uses a high-grade instrumentation amplifier that provides switch-selectable gains of 1, 2, 10, 50, 100, 200 and 1,000. This amplifier lets you accurately
measure low-level signals with your PC-LabCard™ product. The board also contains a cold-junction sensing circuit that allows direct temperature measurement from thermocouple
transducers. A wide variety of thermocouples are supported with software compensation and linearization.
Specifications
I/O
Cold-junction
Compensation
Input Channels
Input Conditions
Gains
1,000
100
10
1
Pin Assignments
+24.4 mV/° C, 0 V at 0° C
16 differential
CMRR
125 dB
115 dB
105 dB
85 dB
Nonlinearity
0.005% FSR
0.005% FSR
0.007% FSR
0.015% FSR
Setting Time
75 µsec.
15 µsec.
15 µsec.
15 µsec.
Input Range
±10 V max. depending on the selected gain
Output Range
±10 V max.
Overvoltage Protection
±30 V continuous
General
Certifications
Connectors
Controller:
I/O:
Dimensions (L x W)
Mounting
Power Consumption
CE
1 x DB37 male connector
2 x 20-pin box header for daisy chaining
Screw terminals
205 x 114 mm (8.1" x 4.5")
4 x screw holes for flat surface mounting
+5 V @ 30 mA max, +12 V @ 80 mA max.
Ordering Information
PCLD-789D
PCL-10137-1
PCL-10137-2
PCL-10137-3
PCL-10120-1
PCL-10120-2
Amplifier and Multiplexer Board w/ 1m DB37 Cable
DB37 Cable, 1 m
DB37 Cable, 2 m
DB37 Cable, 3 m
20-pin Flat Cable, 1 m
20-pin Flat Cable, 2 m
Block Diagram
Signal Conditioning Modules and Terminal Boards

PCLD-789D Related Products

PCLD-789D PCL-10120-1 PCL-10120-2
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