Tempco TEC-410, Инструкция по эксплуатации

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13
2-7 RTD Input Wiring
The RTD connections are shown in figure 2-6,
with the compensating lead connected to terminal
19. For two-wire RTD inputs, terminals 19 and 20
should be jumpered. A three-wire RTD offers the
capability of lead resistance compensation, pro-
vided that the three leads are of same gauge and
equal length.
Two-wire RTD should be avoided, if possible, for
the purpose of accuracy. A 0.4 ohm lead resistance
of a two-wire RTD will produce 1°C temperature
error.
Figure 2.6
RTD Input Wiring
1
1
2
2
3
3
4
4
ON
ON
Dip S witch
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
RTD
RTD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Three-Wire RTD
Two Wire RTD
12
3
4
ON
0~20mA or
4~20mA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Dip S witch
+
—
Figure 2.8
Linear Current Wiring
Figure 2.7
Linear Voltage Wiring
12
3
4
ON
0~60mV,
0~1V, 0~5V,
1~5V, 0~10V.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
12
ON
+
—
0-1V, 0-5V
1-5V, 0-10V
0~60mV
2–8 Linear DC Input Wiring
DC Linear voltage and linear current connections
are shown in figure 2-7 and 2-8.