Gossen MetraWatt SIRAX V 644 Mode D'emploi page 27

Connect the measuring leads to suit the application as given in Table 5.
Table 5: Measuring input
Measurement
DC voltage
(direct input)
DC voltage
(input via potential divider)
DC current
Resistance thermometer RTD
or resistance measurement R,
two-wire connection
Rw1 + RW2 ≤ 60 Ω
Resistance thermometer RTD
or resistance measurement R,
three-wire connection
≤ 30 Ω per lead
R
Ltg.
Resistance thermometer RTD
or resistance measurement R,
four-wire connection
≤ 30 Ω per lead
R
Ltg.
2 identical three-wire resistance
thermometers RTD for deriving
the difference
≤ 30 Ω per lead
R
Ltg.
Thermocouple TC
with cold junction compensation
Ni 100 (plugged onto backplane)
Thermocouple TC
cold junction compensation
external
Thermocouple TC
in a summation circuit for deriving
the mean temperature
Thermocouple TC
in a differential circuit for deriving
the mean temperature
Resistance sensor WF
≤ 30 Ω per lead
R
Ltg.
Resistance sensor WF DIN
≤ 30 Ω per lead
R
Ltg.
Measuring range Measuring
limits span
– 300...0...+300 mV 2...300 mV
– 40...0...+40 V 0.3...40 V
(Ex max. 30 V)
– 12...0... +12 mA/ 0.08... 12 mA/
– 50...0...+100 mA 0.75...100 mA
0... 740 Ω / 8... 740 Ω /
0...5000 Ω 40...5000 Ω
0... 740 Ω / 8... 740 Ω /
0...5000 Ω 40...5000 Ω
0... 740 Ω / 8... 740 Ω /
0...5000 Ω 40...5000 Ω
RTD1 - RTD2
8... 740 Ω /
0... 740 Ω /
40...5000 Ω
0...5000 Ω
– 300...0...+300 mV 2...300 mV
– 300...0...+300 mV 2...300 mV
– 300...0...+300 mV 2...300 mV
TC1 - TC2
2...300 mV
– 300...0...+300 mV
0... 740 Ω / 8... 740 Ω /
0...5000 Ω 40...5000 Ω
0... 740 Ω / 8... 740 Ω /
0...5000 Ω 40...5000 Ω
Wiring diagram
No.
Plug arrangements
c a
1
2
1 3
4
5
6
1
2
3
2
4
5
6
1
2
3
3
4
5
6
1
Rw1
2 Jumper
3
RTD
4
4
5
Rw2
6
1
2
3
5
RTD
4
5
6
1
2
3
RTD
6
4
5
6
1
2
RTD2
3
7
4
RTD1
5
6
1
2
3
4
8
5
6
7
8
1
2
3
9
4
5
6
1
2
3
10
4
5
6
1
2
3
11
4
5
6
1
2
3
12
4
5
6
1
2
3
13
4
5
6
+
–
–
+
+
–
R
ϑ
R
ϑ
R
ϑ
R2
ϑ
R1
ϑ
+
–
Ni
External
+
compen-
sating
resistor
–
+ External
compen-
– sating
+
resistor
–
+
TC1
–
–
TC2
(Ref.)
+
100%
0%
100%
0%
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