Rockwell Automation 1771-IR INSTL.INSTR RTD INPUT MODULE - Manual (Page 12)

RTD Input Module 12
Publication 1771-5.50 – October 1996
Value Description
Agency Certification
(when product or packaging is marked)
•
CSA certified
•
CSA Class I, Division 2, Groups A, B, C, D certified
•
UL listed
•
CE marked for all applicable directives
User Manual Publication 1771-6.5.76
Major differences between series of the 1771-IR RTD Input module
are shown below.
Description Series A Series B and C
Use of Data Table 8 in; 8 out; 8 read words, 14 write words 8 in; 8 out; 9 read words, 15 write words
Resistance Range 18.4 to 400.00 ohms 1.00 to 600.00 ohms
Common Mode Impedance <50 megohms shunted by <4700pF Greater than 10 megohms
Input Overvoltage Protection 40V rms continuous 120V rms continuous
Scan Time 50ms for 6 channels 50ms for 6 channels
Real Time Sampling None 50ms to 3.1s
Auto-Calibration None Yes – Uses Block Transfer Write word 15
Open RTD Response Time None Open excitation (terminal A) to overrange: <0.5sec
Open common (terminal C) to underrange: <0.5sec
Open sense (terminal B): drift high
Power Dissipation 5.0W maximum 4.75W maximum
Thermal Dissipation 15.0 BTU/hr 16.2 BTU/hr
Agency Certification
(when product or packaging is marked)
•
CSA certified
•
CSA Class I, Division 2, Groups A, B, C,
D certified
•
UL listed
•
CSA certified
•
CSA Class I, Division 2, Groups A, B, C, D
certified
•
UL listed
•
CE marked for all applicable directives
Differences Between
Series A, Series B and
Series C Modules
Allen-Bradley, a Rockwell Automation Business, has been helping its customers improve
productivity and quality for more than 90 years. We design, manufacture and support a broad
range of automation products worldwide. They include logic processors, power and motion
control devices, operator interfaces, sensors and a variety of software. Rockwell is one of the
world’s leading technology companies.
Worldwide representation.
Argentina • Australia • Austria • Bahrain • Belgium • Brazil • Bulgaria • Canada • Chile • China, PRC • Colombia • Costa Rica • Croatia • Cyprus • Czech Republic • Denmark •
Ecuador • Egypt • El Salvador • Finland • France • Germany • Greece • Guatemala • Honduras • Hong Kong • Hungary • Iceland • India • Indonesia • Ireland • Israel • Italy •
Jamaica • Japan • Jordan • Korea • Kuwait • Lebanon • Malaysia • Mexico • Netherlands • New Zealand • Norway • Pakistan • Peru • Philippines • Poland • Portugal • Puerto
Rico • Qatar • Romania • Russia–CIS • Saudi Arabia • Singapore • Slovakia • Slovenia • South Africa, Republic • Spain • Sweden • Switzerland • Taiwan • Thailand • Turkey •
United Arab Emirates
•
United Kingdom
•
United States
•
Uruguay
•
Venezuela
•
Yugoslavia
Allen-Bradley Headquarters, 1201 South Second Street, Milwaukee, WI 53204 USA, Tel: (1) 414 382-2000 Fax: (1) 414 382-4444
Publication 1771-5.50 – October 1996 PN 955126-08
Copyright 1996 Allen-Bradley Company, Inc. Printed in USA