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Expansion Connector; Associating Cjc Channels With Thermocouple Channels - Omega OMB-AI-EXP32 User Manual

Analog input expansion module for omb-daq-2416 series

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OMB-AI-EXP32 User's Guide

Expansion connector

The OMB-AI-EXP32 has a 37-pin male DSUB connector that connects directly to the 37-pin female DSUB

connector on a OMB-DAQ-2416 series module.

Information on signal connections

General information regarding signal connection and configuration is available in the Guide to Signal

Connections. This document is available in the Documents subdirectory where you installed the software.

Associating CJC channels with thermocouple channels

TC channels must immediately follow their associated CJC channels in the channel array. For accurate

thermocouple measurements, associate CJC channels with the TC channels as listed below.

When measuring thermocouples, configure the OMB-DAQ-2416 series module for differential inputs.

EGND.....

NC.....

DIO_LOAD1.....

DIO_LOAD2.....

IMEN7.....

IMEN8.....

IMEN9.....

IMEN10.....

IM_A0.....

IM_A1.....

IM_A2.....

NC.....

VCC.....

AGND.....

EXP_CH.....

AGND.....

EXP_CL.....

AGND.....

Figure 5. DSUB37 expansion connector pin out

CJC channels

CJC6

CJC7

CJC8

CJC9

CJC10

CJC11

.....EGND

.....NC

.....SCK

.....MOSI

.....SDA

.....SCL

.....CM_A2

.....SM_A0

.....SM_A1

.....CM_A3

.....EXTDIO_INT

.....VDD_ISO

.....-20.5 V

.....AGND

.....+20.5 V

.....+5 VA

.....AGND

.....+3.3 V_ISO

TC channels

TC8 through TC11

TC12 through TC15

TC16 through TC19

TC20 through TC23

TC24 through TC27

TC28 through TC31

Installing the OMB-AI-EXP32

Table of Contents

Expansion Connector; Associating Cjc Channels With Thermocouple Channels - Omega OMB-AI-EXP32 User Manual

Expansion connector

Associating CJC channels with thermocouple channels

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