Daqu — Manual
4.6
Oil Pressure
Option
Selection/Setting
Channel
Any D
Function
Oil pressure
Sensor
4-20 mA Int Res
Report time
0.5 – 1.0 s
Filter
2.0 s
Max value (at 20 mA)
10
Table 8:
Typical Rotax oil pressure configuration.
output. The sensor requires 5 V to operate. The sensor max range is 10 bar.
0.5 - 4.5 V
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
Oil P.
Voltage
Figure 20:
Oil pressure sensor with variable voltage (0.5 – 4.5 V) output. Sen-
sor is powered with 5V.
The sensor configuration is shown on Table 9. As this is a 10 bar sensor, the
max value is set to 10 bar. Your sensor may have a different max value.
4.6.4
Resistive, One Wire
Some older engines may still use (passive) resistive sensors. In this case sensor
acts as a resistor. When sensor is installed directly on the engine, it is almost
always grounded via engine block – and one wire sensor is typically used. See
section 3.3.1. Connection schematics for one such sensor (a 10 bar VDO) is
shown on Figure 5. A configuration for this example is given on Table 10.
Daqu supports the following resistance ranges for oil pressure sensors.
33
©
Kanardia
2019
