Channel Selector - pma Digital 380 Bedienungsanleitung

Connecting diagram for current measurement via voltage input
Channel selector switching outputs:
With connection of Pt100 and
potentiometric transducers in
2-wire circuit, lead resistance
adjustment (R
Control inputs d1 and d2 are
suitable forpotential-free contacts or 0/5V - TTL signals.
0V =
5V =
The indicator must be protected via an external fuse. Connecting both
terminals 20,21 to protective earth is indispensable. The regulations
specified in the PTB certificate must be followed!
9499-040-24701
0,2 ...1,0V
is necessary.
a)
= Logic „1"
= Logic „0"
4...20mA
R =
50[
S
L
R
a
L
+
L L
5