Specifications – Rockwell Automation 1746-INT4 Thermocouple/mV Isolated Input Module Quick Start User Manual
Page 18
18 Thermocouple/mV Isolated Input Module
Publication 1746-QS002B-EN-P - July 2002
Specifications
Module Location
SLC chassis - any I/O module slot except 0
Input from System Backplane
5Vdc @ 0.110 A, 24Vdc @ 0.085A
Thermocouple Types
b, c, d, e, j, k, n, r, s, t
Input Voltage
-50 to +50mV and -100 to +100mV
Number of Channels
4 (backplane and channel-to-channel isolated)
A/D Conversion Method
Sigma-Delta modulation
Input Filtering
Analog filter with low-pass digital filter
Normal mode rejection between
[+] input and [-] input
Greater than 50dB @ 50Hz
Greater than 60dB @ 60Hz
Common mode rejection
between inputs and chassis
ground
Greater than 120dB @ 50/60 Hz with 1K ohm imbalance
Channel bandwidth (-3db)
8Hz
Calibration
Once every six months
Isolation
Tested to 1000Vac for 60 sec. between channels and between user connections
and backplane connections
Operating Temperature
IEC 60068-2-1 (Test Ad, Operating Cold),
IEC 60068-2-2 (Test Bd, Operating Dry Heat),
IEC 60068-2-14 (Test Nb, Operating Thermal Shock):
0-60
o
C (32–140
o
F)
Storage Temperature
IEC 60068-2-1 (Test Ab, Un-packaged Non-operating Cold),
IEC 60068-2-2 (Test Bc, Un-packaged Non-operating Dry Heat),
IEC 60068-2-14 (Test Na, Un-packaged Non-operating Thermal Shock):
–40 to 85
o
C (–40 to 185
o
F)
Relative Humidity
IEC 60068-2-30 (Test Db, Un-packaged Non-operating Damp Heat):
5–95% non condensing
Required Terminal Block
Cat. No. 1746-RT32
Wiring
Wire Category
1
Torque
24-14 AWG
2
6-8 in-lbs.
Enclosure Type Rating
None (open style)
Certifications
2
(when product is marked)
UL
UL Listed Industrial Control Equipment
CSA
CSA Certified Process Control Equipment
CSA
CSA Certified Process Control Equipment for Class I, Division 2
Group A,B,C,D Hazardous Locations
CE
European Union 89/336/EEC EMC Directive, compliant with:
EN 50082-2; Industrial Immunity
EN 61326; Meas./Control/Lab., Industrial Requirements
EN 61000-6-2; Industrial Immunity
EN 61000-6-4; Industrial Emissions
C-Tick
Australian Radiocommunications Act, compliant with:
AS/NZS 2064; Industrial Emissions
User Manual
Publication 1746-6.16, Thermocouple/mV Isolated Input Module User Manual
1
Use this conductor category information for planning conductor routing as described in publication 1770-4.1, Industrial
Automation Wiring and Grounding Guidelines.
2
See the Product Certification link at www.ab.com for Declarations of Conformity, Certificates, and other certification
details.