3.5
Thermocouples
Daqu — Manual
Engine
block
T
Dashed lines represents connections provided by the engine block.
OIL
T
Engine ground splitter
AWG 17 (or thicker)
A
11
E
1
2
C
A
A
A
A
11
12
12
A
A
A
8
9
10
A
7
6
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
E
2
1
12
Y
Y
Z
10
6
7
8
9
5
3
4
1
2
A
A
A
5
3
4
A
A
+
-
2
1
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
+
-
CHT
1
CHT
2
CHT
3
CHT
4
AUX
1
AUX
2
RPM
FL
1
FL
2
11
12
10
6
7
8
9
5
3
4
1
2
+
-
EGT
1
EGT
2
EGT
3
EGT
4
AUX
3
AUX
4
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
V
OIL
+
-
T
WATER
+
-
T
DAQU V2.3
Manifold A
13
Oil P.
VDO 10 bar
1
CHT
CHT
Resistive oil pressure
sensor
2
Figure 5:
Several one wire resistive sensors connection principle.
3.5
Thermocouples
Thermocouples are used as temperature sensors. Usually, they measure EGT
or CHTs, but they may be used to measure other temperatures as well. They
always connect to A channels.
Thermocouples differ in type. Thermocouple types are designated with let-
ters. Daqu supports thermocouple types J and K. Thermocouple probes also
differ by electrical isolation principle.
An isolated thermocouple sensor has its tip electrically isolated from
©
Kanardia
2019
16
