Daqu — Manual
3.5
Thermocouples
A
A
11
12
A
A
A
8
9
10
A
7
11
12
10
6
7
8
9
5
3
4
1
2
+
-
EGT
1
EGT
2
EGT
3
EGT
4
AUX
3
AUX
4
+
-
+
-
+
-
+
-
+
-
R
R
C
A
A
4
14
GND
+12 V
3
2
1
D
D
15
+5 V
GND
1
2
FUEL
P
P
OIL
8
7
6
5
10
9
BAT
1
11
12
+
-
V
OIL
+
-
T
WATER
+
-
T
Figure 6:
Two wire resistive sensor principle. The return line is isolated and
does not connect to the engine block. Additional connection to GND
reference is needed for each negative terminal.
R
E
1
2
E
2
1
Y
Y
Z
ROTOR
FFLOW
GND
+5 V
1
2
B
1
B
2
I
1
I
2
3
7
6
5
4
8
GND
+12 V
10
9
12
11
1
+
-
RPM
FL
1
FL
2
Figure 7:
Two wire resistive sensor connection on E channel.
either wire. A multimeter will read infinite resistance (no contact) be-
tween the sensor tip and either wire end.
A non-isolated thermocouple sensor has its tip in contact with either
wire. A multimeter will read very small resistance (one or two ohms,
max) between the tip and either wire end.
Connection schematics is the same in both cases, but the channel must be
configured properly in software.
17
©
Kanardia
2019
