
12
ENGLISH
Connection of the signal transmitters (in the models MDI40V and MDI40A):
• 2 wires: signal to the measuring input; power supply to terminal 6;
jumper also terminals 4 and 5; loop impedance 60 to 80 Ω (load 20mA).
• 3 wires: signal to the measuring input; power supply to terminals 5 and
6; jumper also terminals 4 and 5;
•
4 wires: signal to the measuring inputs; power supply to terminals 5 and 6.
Connect MDI40CF (thermometer) as shown in the figure. For temperature
resistances only: if there are two wires only, jumper terminals 3 and 4.
PRELIMINARY OPERATIONS
Before supplying the instrument, make sure that the power supply
voltage correspond to what is shown in the label. Example:
MDI40A0BD2AXXIX
SER.N. 960600/20078
POWER 230 VAC 50/60 Hz
INPUT CURRENT
N. 2 set points
OUTPUT 20 mA / 10 VDC
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