Campbell Scientific CR23X Micrologger - Manual (Page 216)

SECTION 13. CR23X MEASUREMENTS
13-16
-1
-0.5
0
0.5
1
1.5
2
2.5
3
3.5
4
-10
-5
0 5
10 15 20 25 30 35 40 45 50 55 60 65 70 75 80
Time, Minutes
TC Temperature Error, Deg.
C
-40
-30
-20
-10
0
10
20
30
40
50
60
Temperature, Deg. C
TC Temperature Error, Channel 4
TC Temperature Error, Channel 1
TC Temperature Error, Channel 7
True TC Temperature
CR23X Reference Temperature
Terminal Cover Temperature
FIGURE 13.4-2. Thermocouple Temperature Error During Rapid Temperature Change
Base w/o Battery, Terminal Cover in Place
TABLE 13.4-1. Limits of Error for Thermocouple Wire (Reference Junction at 0°C)
Limits of Error
Thermocouple Temperature (Whichever is greater)
Type Range °C Standard Special
T -200 to 0 ± 1.0°C or 1.5%
0 to 350 ± 1.0°C or 0.75% ± 0.5°C or 0.4%
J 0 to 750 ± 2.2°C or 0.75% ± 1.1°C or 0.4%
E -200 to 0 ± 1.7°C or 1.0%
0 to 900 ± 1.7°C or 0.5% ± 1.0°C or 0.4%
K -200 to 0 ± 2.2°C or 2.0%
0 to 1250 ± 2.2°C or 0.75% ± 1.1°C or 0.4%