HBM MC3 Bedienungsanleitung Seite 20

20
• Fine measuring range adjustment
P 23: Using potentiometer P 23, a fine measuring range adjustment of 40 %
referred to the set value can be carried out.
• Measuring signal output (option)
S 22: The desired mode of operation, voltage or current output, can be selec-
ted using slide switch S 22
Position 1 (circle visible) = Voltage output
Position 2 (circle obscured) = Current output
Open−Collector output
U
o
i = + 4 mA ... + 20 mA, R
o
Measuring signal output
Strain gage full
bridge or strain
gage transducer
(300 Ω ... 1400 Ω
Fig. 6.2: Contact Allocation of terminal strips Kl 21, 22, 23
*)
This switch is also included if the MC3 is not equipped with a final stage for current output. In this case it
should always be left on position 1 (circle visible
HBM
*)
.
+ 10.5 V ... + 26 V
Power supply
0 V
max. + 30 V, 50 mA
(Limit value switch)
= "5 V, R > 2.5 kΩ
a
= < 400 kΩ
o
Zero
Kl 23
Kl 22
Kl 21
).
MC3
A1705−3.2 en/de/fr