Spectrum Controls 1769sc-IT6I - Manual (Page 9)

User’s Manual Pub. 0300244-01 Rev. A
Chapter 1
Overview
This chapter describes the 1769sc-IT6I Isolated Thermocouple/mV Input Module and
explains how the module reads thermocouple or millivolt analog input data. Included is
information about:
•
The module’s hardware and diagnostic features
•
An overview of system and module operation
•
Compatibility
Section 1.1
General
Description
The isolated thermocouple/mV input module supports thermocouple and millivolt signal
measurement. It digitally converts and stores thermocouple and/or millivolt analog data
from any combination of up to six thermocouple or millivolt analog sensors. Each input
channel is individually configurable via software for a specific input device, data format
and filter frequency, and provides open-circuit, over-range and under-range detection and
indication.
1.1.1 Thermocouple/mV Inputs and Ranges
The table below defines thermocouple types and their associated full-scale temperature
ranges. The second table lists the millivolt analog input signal ranges that each channel
will support. To determine the practical temperature range your thermocouple supports,
see the specifications in Appendix A.
Thermocouple Type Temperature Range ( °C) Temperature Range (°F)
J -210 to 1200 -346 to 2192
K -270 to 1370 -454 to 2498
T -270 to 400 -454 to 752
E -270 to 1000 -454 to 1832
R 0 to 1768 32 to 3214
S 0 to 1768 32 to 3214
B 300 to 1820 572 to 3308
N -210 to 1300 -346 to 2372
C 0 to 2315 32 to 4199
L -200 to 900 -328 to 1652
Millivolt Input Type Range
± 50mV
-50 to 50 mV
± 100mV -100 to 100 mV