User Manual
26 GMC-I Messtechnik GmbH
Internal clock
Time format DD.MM.YYYY hh:mm:ss
Resolution 0.1 s
Accuracy 1 minute per month
Temperature Influence 50 ppm / K
Reference Conditions
Ambient temperature +23 C 2K
Relative humidity 40 ... 75%
Battery voltage 3.0 V 10 %
Thermocouple Simulation Error [C]
Thermocouple error is specified in the technical data as
thermovoltage error: U. T error is dependent upon
characteristic thermocouple slope.
In consideration of characteristic thermocouple non-linearity,
which also applies to slope (1
st
dT/dU derivation) mathematically
calculated T error is shown in the following table for all
thermocouple types in the 100 C sub-range. The values shown
in the table represent maximum possible error for the respective
sub-range.
If an internal reference temperature is used, the intrinsic error of
the reference junction must be taken into account .
If an external reference temperature of other than 0 C is used, the
sub-ranges of the table on the right apply, adjusted by the
amount of the relevant reference temperature.
Example
External reference temperature = 50 C: the errors of the sub-
range 100 200 C apply for setting values from 50 150 C.
Temperature conversion from centigrades to Fahrenheit:
T [F] = 32 + T [C] x 1.8.
Additional Error for Thermocouple Simulation
Thermocouple Type T Error in K for Thermocouple Types (ref. temp. 0 C)
Sub-Range: CJLTUKESRBN
– 200 ... –100
1.2 1.0 1.6 1.4 1.6 1.1 2.3
– 100 ... 0
0.6 0.8 0.9 0.9 0.8 0.6
*)
5.2
*)
5.5
1.1
0 ... 100
0.5 0.6 0.6 0.6 0.7 0.5 3.8 3.9 0.9
100 ... 200
0.6 0.7 0.6 0.6 0.7 0.5 3.2 3.2 0.8
200 ... 300
0.6 0.7 0.6 0.6 0.7 0.5 2.6 2.5 0.8
300 ... 400
0.7 0.8 0.6 0.6 0.8 0.5 2.5 2.3 0.8
400 ... 500
0.7 0.8 0.6 0.8 0.6 2.4 2.2 0.9
500 ... 600
0.7 0.9 0.6 0.9 0.6 2.4 2.2 4.2 0.9
600 ... 700
0.8 0.9 0.9 0.7 2.3 2.1 3.6 0.9
700 ... 800
0.8 0.9 1.0 0.8 2.3 2.1 3.3 1.0
800 ... 900
0.9 0.9 1.1 0.8 2.3 2.1 2.9 1.0
900 ... 1000
0.9 1.2 0.9 2.3 2.0 2.8 1.1
1000 ... 1100
1.0 1.2 2.3 2.0 2.6 1.2
1100 ... 1200
1.1 1.3 2.3 2.0 2.5 1.3
1200 ... 1300
1.4 2.3 2.1 2.4 1.4
1300 ... 1400
1.5 2.4 2.1 2.3
1400 ... 1500
2.4 2.2 2.3
1500 ... 1600
2.5 2.2 2.3
1600 ... 1700
2.6 2.3 2.3
1700 ... 1800
2.8 2.5 2.4