Rosemount Tank Radar AB REX 用户手册
20
Saab TankRadar L/2
US Version. Seventh edition, June 1995
Installation Manual
4
Description of the Data Acquisition Units
The Data Acquisition Unit, DAU, is a complement to the Radar
Tank Gauge and it can interface various external sensors and
actuators. There are two versions of the DAU, the Slave DAU and
the Independent DAU. Both types have interfaces for temperature
measurement.
Tank Gauge and it can interface various external sensors and
actuators. There are two versions of the DAU, the Slave DAU and
the Independent DAU. Both types have interfaces for temperature
measurement.
Figure 4.1 shows the Slave DAU and the Independent DAU.
4.1
Connection of the Sensors
The DAUs can connect up to 14 RTDs (Resistance Temperature
Detectors) on the X21 terminal on the motherboard. See figure 4.2.
Detectors) on the X21 terminal on the motherboard. See figure 4.2.
Under the lid of the Data Acquisition Unit there are instructions
printed as to how to connect the sensors and transducers.
printed as to how to connect the sensors and transducers.
43
40
37
34
31
28
25
22
19
16
13
10
7
4
1
44
41
38
35
32
29
26
23
20
17
14
11
8
5
2
45
42
39
36
33
30
27
24
21
18
15
12
9
6
3
Connect
temperature
sensors
temperature
sensors
DAU
Connect Reference
Resistor to terminals
43, 44 and 45.
Resistor to terminals
43, 44 and 45.
Figure 4.2 shows the wire terminals for the temperature sensors.