Campbell Scientific CR23X Micrologger User 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%