Camille Bauer EURAX V 604 Betriebsanleitung Seite 25

Continuation of table 5: Measuring input
Measuring mode / application
Resistance thermometer RT
or resistance measurement R,
three-wire connection
Resistance thermometer RT
or resistance measurement R,
four-wire connection
2 identical three-wire resistance
transmitters RT
for deriving the difference
Thermo-couple TC
Cold junction compensation internal
(Ni 100)
Thermo-couple TC
Cold junction compensation external
Thermo-couple TC
in a summation circuit for deriving
the mean temperature
Thermo-couple TC
in a differential circuit for deriving
the mean temperature
(Ni 100 not necessary)
Resistance transmitter WF
Resistance transmitter WF DIN
(10)
1 2 3
Fig. 5. Rear part of EURAX V 604 showing the jumper pins (10), the
eight-way DIP switch (11) and the supply fuse (12).
Measuring range Measuring
limits span
0... 740 Ω / 8... 740 Ω /
0...5000 Ω 40...5000 Ω
0... 740 Ω / 8... 740 Ω /
0...5000 Ω 40...5000 Ω
RT1 – RT2
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
(11)
(12)
Position of
jumpers
A A
B
1 2 3
A
B B
1 2 3
A A
B
1 2 3
A A
B
1 2 3
A A
B
1 2 3
A A
B
1 2 3
A A
B
1 2 3
A A
B
1 2 3
A A
B
1 2 3
Notes
6.1.1 Connection to thermo-couples (connection
diagram No. 8)
With instruments programmed for thermocouple connection
with internal cold junction compensation, compensating
leads must be used from the thermocouple to the EURAX
V 604.
No line balancing is required.
6.1.2 Connection to resistance thermometers or
potentiometers
6.1.2.1Two-wire connection (connection diagram No. 4)
In the case of a two-wire measurement the influence of the
lead resistance is compensated automatically by a lead
resistance measuring circuit. This is done by shorting the
sensor and presing the calibration button S1 (see Fig. 2) for
at least 3 seconds. Wait until the green LED ON no longer
flashes. Remove the short-circuit from across the sensor.
Connecting diagram
No
Plug arrangement
d b z
5
2
RT R
ϑ
4
d b z
2
6
RT R
ϑ
4
d b z
(ref) (ref)
2
RT2 R2
ϑ
7
4
RT1 R1
ϑ
d b z
2
+
8
4
–
6
Ni 100
d b z
+
Comp.
2
9
resistor
external
4
–
d b z +
Comp.
2
resistor
10 –
+
external
4
–
+
d b z
2
TC1
11 –
TC2
–
(Ref.)
4
+
d b z
100%
2
12
0%
4
d b z
100%
13
2
0%
4
25