Omega OM-DAQXL-1 Series, User Manual

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2-7
2.6.1.3 Current Wiring
For current measurement a 50Ω shunt resistor is provided.
2.6.2 Two, Three & Four Wire Sensors
2.6.2.1 Two-Wire RTD Wiring
For RTD sensors the positive colored red and the common lead can be either
black or white. A jumper wire must be connected between the negative leads of
the two assigned channels as shown in figure 2-13.
Hardware
2
Figure 2-12 DC Current Wiring Example - External Excitation
Sensor Type
Odd Channel Even Channel
+ - + -
Temperature
2 Wire RTD RTD+ RTD– RTD-
3 Wire RTD RTD+ RTD– RTD-
4 Wire RTD RTD+ RTD– RTD+ RTD-
Thermistor Th+ Th- Th-
Bridge
Strain Gage EXC+ EXC- V+ V-
Load Cell EXC+ EXC- V+ V-
Pressure Transducer EXC+ EXC- V+ V-
Table 2-4 Three and Four Wire Sensor Connections
Figure 2-13 Two-Wire RTD Wiring Example