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OM-DAQXL-1 Series
User manual
Current Wiring; Two Wire Rtd Wiring; Table 2-4 Three And Four Wire Sensor Connections; Figure 2-12 Dc Current Wiring Example - External Excitation - Omega OM-DAQXL-1 Series User Manual
Multi-channel universal input touch screen data logger
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2
Hardware
2.6.1.3 Current Wiring
For current measurement a 50Ω shunt resistor is provided.
Figure 2-12 DC Current Wiring Example - External Excitation
2.6.2 Two, Three & Four Wire Sensors
Sensor Type
Temperature
Bridge
Pressure Transducer
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.
2-7
2 Wire RTD
3 Wire RTD
4 Wire RTD
Thermistor
Strain Gage
Load Cell
Table 2-4 Three and Four Wire Sensor Connections
Figure 2-13 Two-Wire RTD Wiring Example
Odd Channel
+
-
RTD+
RTD–
RTD+
RTD–
RTD+
RTD–
Th+
Th-
EXC+
EXC-
EXC+
EXC-
EXC+
EXC-
Even Channel
+
-
RTD-
RTD-
RTD+
RTD-
Th-
V+
V-
V+
V-
V+
V-
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This manual is also suitable for:
Om-daqxl
Om-daqxl-2 series
Om-daqxl-1-ew series
Om-daqxl-2-ew series
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