17
9900 Transmitter
+
–
+
–
4
3
2
1
PWR –
PWR +
Loop +
Loop –
Black
Red
Power Supply
10.8 to 35.2 VDC
System Pwr Loop -
System Pwr Loop +
AUX Power -
AUX Power +
Power
Supply
12 to 24 VDC
Black
Red
ProcessPro
(for reference only)
9900
9900
Terminals
Transmitter
Terminals
Stand-alone application, no current loop used
+
–
4
3
2
1
+
–
4
3
2
1
+
–
+
–
9900
Terminals
PWR –
PWR +
Loop +
Loop –
System Pwr Loop -
System Pwr Loop +
AUX Power -
AUX Power +
Transmitter
Terminals
AUX power required for all 8750-2 systems
Power
Supply
12 to 24 VDC
Black
Blue
Red
Red
Blue
Black
ProcessPro
(for reference only)
9900
Power Supply
10.8 to 35.2 VDC
PLC or Recorder
Loop Input
4 to 20 mA
PLC or Recorder
Loop Input
4 to 20 mA
Connection to a PLC/Recorder, separate supply
+
–
+
–
+
–
+
–
4
3
2
1
PWR –
PWR +
Loop –
Loop +
Red
Black
9900
Terminals
System Pwr Loop -
System Pwr Loop +
AUX Power -
AUX Power +
Power
Supply
12 to 24 VDC
Transmitter
Terminals
Black
Red
PLC or Recorder
Loop Input
4 to 20 mA
ProcessPro
(for reference only)
9900
Power Supply
10.8 to 35.2 VDC
PLC or Recorder
Loop Input
4 to 20 mA
Loop Powered
NOTE:
Loop Power
cannot be used to power
certain Signet sensors.
See table on page 11.
CAUTION
!
DO NOT connect your 9900 to AC power.
The 9900 MUST be powered by
10.8 to 35.2 VDC ONLY.
Power Wiring