Resistance Measurement; Voltage Measurement - testo 54 Serie Bedienungsanleitung

4 4 . . E E l l e e c c t t r r i i c c a a l l C C o o n n n n e e c c t t i i o o n n s s
View of rear of unit
X2
X1
4 4 . . 1 1 M M e e s s s s e e i i n n g g ä ä n n g g e e
4.1.1 Thermocouples
X2
-
+
2 3 4 5 6 7 8 9 10 11
1
1 Positive leg of thermocouples
2 Negative leg of thermocouples

4.1.2 Resistance measurement

Pt100 or 0 ... 400 Ω
ϑ
ϑ
ϑ
1 2 3 4 5 6 7 8 9 10 11
Measuring- and
control inputs
as well as auxi-
liary signals
Power supply
and limit out-
puts
4 wire
3 wire
2 wire
W W a a r r n n i i n n g g : : for 90 ... 260 V ACver-
sion. Please apply the power sup-
ply after the complete installation.
Danger of Death! Please check
unit label before applying the power
supply.
4.1.3 Resistance measurement
Pt1000 or 0 ... 4000 Ω
ϑ
ϑ
ϑ
1 2 3 4 5 6 7 8 9 10 11

4.1.4 Voltage measurement

0 ... 100 mV, or –100 ... 100 mV
-
+
1 2 3 4 5 6 7 8 9 10 11
1 Voltage input (U) 0 ... 100 mV,
–100 ... 100 mV
2 GND 1 (analogue)
4 wire
3 wire
2 wire
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