YOKOGAWA DAQSTATION DX100, Руководство по обслуживанию, Страница: 12 / 41

2-4 SM 04L01A01-01E
2.3 Performance Test
Temperature Range
Pt100
18.52
Ω
l00.00
Ω
313.71
Ω
Input Resistance Specification
±
(0.15% of 0.3
°
C)
Tolerance
-200
°
C
0
°
C
600
°
C
-200.6 to -199.4
-0.3 to +0.3
+598.8 to +601.2
For /N1 model
Temperature Range
Pt100
18.52
Ω
l00.00
Ω
313.71
Ω
Input Resistance Specification
±
(0.3% of 0.6
°
C)
Tolerance
-200
°
C
0
°
C
600
°
C
-201.2 to -198.8
-0.6 to +0.6
+597.6 to +602.4
Cu10
(GE)
-200
°
C
0
°
C
300
°
C
-200
°
C
0
°
C
300
°
C
1.326
Ω
9.036
Ω
20.601
Ω
3.750
Ω
25.000
Ω
56.875
Ω
Cu25
-201.8 to -198.2
-1.0 to +1.0
+297.8 to +302.2
±
(0.4% of 1.0
°
C)
±
(0.3% of 0.8
°
C)
-201.4 to -198.6
-0.8 to +0.8
+298.3 to +301.7
Note
The error of a connected apparatus is not included in the tolerance.
2.3.3 Reference Junction Compensation Accuracy Test
Connection
Calibrated thermocouple wires
L N
Input terminals
Power supply terminals
+
-
+
–
Thermostatic chamber (0
°
C)
Figure 2.2 Connection diagram
Procedure
1 Connect the instruments as shown in figure 2.2.
2 Carry out the preparations as described in 2.3.1.
3 Carry out stable ambience and secure the terminal cover to avoid the influence of
wind.
4 Set the input range for the desired thermocouple, and set the span to
±
50
°
C.
5 Verify that the measured value lies within the tolerance.
Temperature
0
°
C
Thermocouple
K,T
Tolerance
Tolerance
±
0.5
°
C *
* Detremining the actual temperature measured accuracy consists of adding the RJC
compensation accuracy and temperature range accuracy. In other words, the actual
measured value which lying within the tolerance consists of adding this value and
0˚C measured accuracy (T and K range).
Test should be done under stable ambience with the terminal cover secured to avoid
the influence of wind.