Dwyer UXF2 - Manual (Page 25)

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3.3.4. Wiring to each terminal
Refer to the following diagram for carrying out wiring.
L N GND GND
Iout(+) DO1(+) DO2(+) GND HF1
NC GND RXD TXD
+ −
GND GND
SYNC
Synchronization RS-485
SHILD TXDR2 TXDR1
Iout(-) DO1(-) DO2(-) GND HF2
Power board terminal block
AC power source: 100 to 120 or 200 to 240 V AC,
50/60 Hz
Communication board terminal block (option)
External ground terminal
RS-232C
RS-485 and synchronization
DC power source: 20 to 30V DC
Power cable
Downstream
sensor cable
Upstream
sensor cable
Output signal cable
(analog output, DO1, DO2,
communication synchronization)
Ground terminal
Main board terminal block
Upstream sensor
Downstream sensor
Red (upstream sensor)
Black (downstream sensor)
Special signal cable (SX3C)
Iout : Analog output
DO1 : Transistor open collector
DO2 : Relay contact
Notes
1. All screws are M3 on the terminal block. Use crimp-style terminals for M3 and whose outer diameter is ‡5.8 or
smaller.
2. Be sure to connect to ground the power board terminal block or external ground terminal (class D ground).
3. For output signal, use multiple core cable as required.
BULLETIN F-70