Dwyer PUX - Manual (Page 16)

5 - 1
5. WIRING
5.1 Connection of dedicated cables
This cable is used for connecting the detector to the main unit.
q Connect dedicated cables to the upstream and downstream sides of the detector.
w Connect one cable connected to the upstream side of the detector to the “UP STREAM” connector of
the main unit, and connect the other cable connected to the down stream side of the detector to the
“DOWN STREAM” connector.
5.2 Connection of analog input/output cable
(4 to 20 mA DC)
This cable is used for connection of receiving instruments (indicators, recorders, etc.) and the main unit.
Analog I/O cable is connected as shown below. The cable end is treated with a clip.
q Connect clips of the analog I/O cable to the (+) and (-) sides of the receiving instruments, respectively.
w Connect the analog I/O cable to the “ANALOG IN/OUT” connector at the side panel of the main unit.
Note) Allowable load resistance of analog output should be adjusted to 1 k
Ω
or less.
Input resistance of analog input is 100
Ω.
STREAM DOWN STREAM UP
SENSOR
ANALOG
IN/OUT
DC17.5V
SERIAL
Upstream Downstream
Flow direction
Detector
Red (+)
Black (-)
Black (-)
4 to 20mA
- +
AO
(output)
Note) Plug the connector
into ANALOG
IN/OUT.
AI
(input)
Indicator,
recorder,
controller, etc.
Red (+)
Red
Converter
Black
Red
Black
-
+
AO
A
AI
BULLETIN F-68