JUMO meroTRON 104 Manual Breve página 62

3 Electrical connection
3.3 Connection diagram
CAUTION!
In unfavorable conditions, the temperature may exceed 60 °C at the terminals.
As a result, the insulation of the cables connected at the terminals may be damaged.
 The affected cables must be heat-resistant up to at least 80 °C.
 Relay (changeover contact, 8 A): The affected cables must be heat-resistant up to at least 90 °C.
NOTE!
There is an individual connection diagram on the housing that corresponds to the ordered device ver-
sion.
NOTE!
Only copper conductors are allowed to be connected to the terminals.
3.3.1 Analog inputs
Analog input 1: standard feature
Analog inputs 2 to 5: optional (options 1 to 4, see order details)
Only an optional analog input can be used as a heater current input.
Measuring probe/
standard signal
Thermocouple
RTD temperature probe
two-wire circuit
RTD temperature probe
three-wire circuit
Voltage DC 0 to 10 V
(for analog input 1: only usable if
digital input 2 is not used)
Voltage DC 0 to 1 V
20
Symbol and termi-
nal designation
2
3
1
3
1
2
3
4
+
U
x
3
-
1
+
U
x
3
-
Measuring probe/
standard signal
Current DC 0(4) to 20 mA
Heater current AC 0 to 50 mA
(only for option)
Resistance/potentiometer
two-wire circuit
Resistance/potentiometer
three-wire circuit
Resistance transmitter
A = Start
E = End
S = Slider
Symbol and termi-
nal designation
2
+
I
x
3
-
1
3
1
2
3
1
A
S
2
E 3