MR MESSKO MT-ST Compact RM - Page 65

5 Installation and commissioning
65BA5831400-00 EN
The heating current is measured indirectly using the voltage drop at the in-
ternal 1Ω resistor. The relationship I=U/R produces the result that, at
R=1Ohm, the numerical value of the measured voltage directly corre-
sponds to the numerical value of the heating current. The heating current
can be adjusted by setting the potentiometer P.
I I
W H
P
R1Ω
V
6
5 4
3
Figure48: Circuit
I
W
Secondary transformer current I
H
Heating current
P Potentiometer V Voltage measurement