9
Signet 9950 Conductivity Transmiter
Power Wiring
+V
FREQ
DATA
GND
+V
FREQ
DATA
GND
PWR+
PWR–
CH2
CH1
DC POWER
DC power optional
Loop1+
Loop1–
Loop2+
Loop2–
Made in U.S. from U.S. and imported par
N
L
100-240 V
AC~
50-60 Hz, 24V
A
Max
Neutral
Line
100-240 AC
+
–
Black
Red
Power Supply
12 to 32VDC
+
–
Red
Black
PLC or Recorder
Loop Input
4 to 20 mA
+
–
PLC or Recorder
Loop Input
4 to 20 mA
Red
Black
3-9950-1 and 3-9950-2
3-9950-2
WARNING
DO NOT connect AC power to the DC version
THE 3-9950-1 MUST BE POWERED BY
12 - 32 VDC at 0.5 A.
+V
FREQ
DATA
GND
+V
FREQ
DATA
GND
Loop1+
Loop1–
Loop2+
Loop2–
PWR+
PWR–
CH2
CH1
DC POWER
and imported par
+
–
Black
Red
Power Supply
12 to 32 VDC
+
–
Red
Black
PLC or Recorder
Loop Input
4 to 20 mA
+
–
PLC or Recorder
Loop Input
4 to 20 mA
Red
Black
Caution:
Electrical shock hazard exists!
Never connect live AC lines to the instrument.
CAUTION
Keep AC power separate from
sensor and signal wiring to prevent
interference and damage to the
9950 Transmitter.
Caution:
For DC power input and loop current regulated
voltage, use UL60950-1 or UL61010-1 certi
fi
ed
power supply. Power supply shall also be rated
for operation at 4000 m altitude.
