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SCM7B

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Isolated Process Control Signal Conditioning Products

SCM7B

SCM7BXEV

Description

The SCM7BXEV (Figure 1 and 2) is a single channel backpanel that can accept

any of the SCM7B analog modules. It is meant to be used primarily for module

evaluation. Unlike multiple channel backpanels, the single high-level system

output (or input) signal is routed to all channel pins on the system interface

DB25 connector. The backpanel contains four standoffs to allow mounting, using

a #6 or smaller screw.

System Side - Power

Using the V+ supply input, the power supply voltage can be as little as +14VDC.

If +15VDC is available, it is recommended that the supply be connected between

the V+A or V+B connections and COM; this will protect the module against

accidental supply reversal. Using both these connections with two power

supplies enables redundant operation. It is also recommended that a diode

transient absorber be installed to reduce power supply transient events from

degrading system performance. An accessory location, between the supply

and common lines, is provided for this purpose. The backpanel is fused at

1/4 Amp for module protection.

System Side - Signal

The SCM7BXEV uses either the SCM7BXCA01 (DB25 to 26-pin adapter

cable) and SCMXCA004-XX (26-pin to 26-pin interface cable), or the

SCM7BXCA02 (DB25 to DB25 interface cable), depending on system

requirements.

Figure 1: SCM7BXEV Dimensions

Specifications

Operating Temperature 40°C to +85°C

ATEX Group II, Category 3 20°C to +40°C

Relative Humidity 90%

Interface Connector:

Field high density screw clamp, 10-24 AWG

System DB25 (male) with 4-40 screwlocks and

high density screw clamp, 10-24 AWG

Field Side - Signal

On the field side, a temperature sensor is mounted underneath the field side

terminal block to provide cold junction compensation for thermocouple modules,

and a current-to-voltage conversion resistor (P/N SCM7BXR1) socketing

location is provided (supplied with SCM7B33 modules). Field connections are

terminated with three screw terminals

▲

Accessories for SCM7B Analog Modules

1 2 3 4 5 6 ... 10 11

Resumo do Conteúdo

Página 1 - SCM7BXEV

SCM7BVisit our website www.dataforth.com87Isolated Process Control Signal Conditioning ProductsSCM7BSCM7BXEVDescriptionThe SCM7BXEV (Figure 1 and 2)

Página 2

Isolated Process Control Signal Conditioning ProductsSCM7BFor information call 800-444-764496SCMXIFUniversal Interface BoardDescriptionThe SCMXIF is a

Página 3 - SCM7BP01/SCM7BP02

SCM7BVisit our website www.dataforth.com97Isolated Process Control Signal Conditioning ProductsSCM7BSCM7BPTNon-Isolated Pass Thru ModuleDescriptionThe

Página 4 - SCM7BP01-DIN/SCM7BP02-DIN

Isolated Process Control Signal Conditioning ProductsSCM7BFor information call 800-444-764488Figure 2: SCM7BXEV Schematic Diagram

Página 5

SCM7BVisit our website www.dataforth.com89Isolated Process Control Signal Conditioning ProductsSCM7BSCM7BP01/SCM7BP02BackpanelDescriptionThe SCM7BP01

Página 6 - Backpanels

Isolated Process Control Signal Conditioning ProductsSCM7BFor information call 800-444-764490SCM7BP01-DIN/SCM7BP02-DINPanels & DIN Rail Mounting A

Página 7

SCM7BVisit our website www.dataforth.com91Isolated Process Control Signal Conditioning ProductsSCM7BFigure 6: SCM7BP01 (-DIN) Schematic DiagramFigure

Página 8 - SCMXRK-002

Isolated Process Control Signal Conditioning ProductsSCM7BFor information call 800-444-764492SCM7BP04(-DIN)/SCM7BP08(-DIN)/SCM7BP16(-DIN)BackpanelsDes

Página 9 - Description

SCM7BVisit our website www.dataforth.com93Isolated Process Control Signal Conditioning ProductsSCM7BFigure 11: SCM7BP08(-DIN) DimensionsFigure 12: SCM

Página 10 - SCM7BXR1

Isolated Process Control Signal Conditioning ProductsSCM7BFor information call 800-444-764494Figure 13: SCM7BP04/08/16(-DIN) Schematic DiagramSCMXRK-0

Página 11 - SCM7B-PROTO

SCM7BVisit our website www.dataforth.com95Isolated Process Control Signal Conditioning ProductsSCM7BSCM7BBackpanel-to-Host System InterfaceDescription

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