Installation Instructions User Manual

SLC™ 500 4-Channel Thermocouple/mV Input Module 21
Publication 1746-IN010D-EN-P - June 2004
Thermocouple Temperature and Millivolt Input Ranges
Input Specifications
Input Type Temperature Range
Thermocouple Type J -210°C to +760°C (-346°F to +1400°F)
Thermocouple Type K -270°C to +1370°C (-454°F to +2498°F)
Thermocouple Type T -270°C to +400°C (-454°F to +752°F)
Thermocouple Type E -270°C to +1000°C (-454°F to +1832°F)
Thermocouple Type R 0°C to +1768°C (+32°F to +3214°F)
Thermocouple Type S 0°C to +1768°C (+32°F to +3214°F)
Thermocouple Type B +300°C to +1820°C (+572°F to +3308°F)
Thermocouple Type N 0°C to +1300°C (+32°F to +2372°F)
Millivolt Input: -50 mV dc to +50 mV dc
Millivolt Input: -100 mV dc to +100 mV dc
Thermocouple Linearization IPTS-68 standard, NBS MN-125, NBS MN-161
Cold-Junction Compensation Accuracy ±1.5°C, 0°C to +85°C (+32°F to +185°F)
Input Impedance Greater than 10MΩ
Temperature Scale (Selectable) °C or °F and 0.1°C or 0.1°F
DC Millivolt Scale (Selectable) 0.1 mV or 0.01 mV
Open Circuit Detection Leakage Current 12 nA maximum
Open Circuit Detection Method Upscale
Module Update Time The sum of all enabled channel’s sample times plus one CJC
update time. See channel sampling time table on page 22.
Channel Turn-On Time,
Reconfiguration Time
Requires up to one module update time plus one of the following:
• 250 Hz Filter = 82 milliseconds
• 60 Hz Filter = 196 milliseconds
• 50 Hz Filter = 226 milliseconds
• 10 Hz Filter = 946 milliseconds
Channel Turn-Off Time Requires up to one module update time
Time to Detect Open Circuit 500 msec or 1 module update time, whichever is greater