6 Chapter
1
DaqPRO
Connect the sensor to the terminal block at the top of
DaqPRO
:
Figure 2:
DaqPRO
’s inputs block terminal
Sensors must be added successively, starting with input
–
1. If a single sensor is used it must be
connected to Input
–
1. If two sensors are used, they must be connected to Input-1 and Input-2 and so on.
Alarm Output
I/O
–
8 (Input/Output
–
8) serves either as an input or as alarm output.
Polarity
Current, voltage, thermocouples and user defined sensors have distinct polarity. Be careful to connect
them in the right polarity.
Frequency/Pulse Counter
Connect the signal wires to
I/O
–
8
screw terminals, and select
Frequency
or
Pulse counter
for
Input
1
from the Setup menu. Inputs 2 to 7 are still available for other sensors.
The Frequency/pulse counter is optically isolated from the internal circuitry and can simultaneously
measure a signal source, together with another input.
3-wire PT 100
You have to use two inputs to connect a 3 wire PT 100. You can connect one 3-wire PT 100 to input
–
1
and input
–
5, and/or inputs 2 and 6, and/or inputs 3 and 7 and/or inputs 4 and 8.
Connect the single wire to the plus (+) terminal of the first input and the common end wires to the minus
(-) terminals of both the inputs.
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