3
2450 Pressure Sensor
+ 5 VDC
data
Signal ground
Black
Red
White
Shield
Temperature
T3
29.5 ºC
Signet Multi-Parameter
Controller
C1 2.50 µS/cm
F2 58.43 GPM
Relay 1
Relay 2
ENTER
Optional
Earth Ground
3-8052
3-8050.521
(S
3
L)
•
The 2450-3X, the 2450-4X and the 2450-7X sensors have a
union-style process connection. To assemble:
1. Slide union nut onto pipe or
fl
exible tubing.
2. Install end connectors.
3. Hand-tighten union nut to secure.
4. A
3
/
4
in. NPT thread is provided to attach a cable gland or
conduit.
5. Refer to Signet Measurement and Instrumentation Product
Catalogue (page 205) for ordering information.
Pipe
End Connector
Union Nut
O-Ring
Sensor
not supplied
Cable gland
or conduit
connection
3.4 1/2 Inch Male Union Installation
Loop Input
Loop Input
4 to 20 mA loop
monitor
+
-
Power Supply
DC 12 - 24 V
+
-
Black (Loop +)
Red
White (Loop - )
Shield
Optional
Earth Ground
3-8052
3-8050.521
BLK
RED
WHT
SHLD
BLK
RED
WHT
SHLD
+
S
-
Loop Input
Loop Input
4 to 20 mA loop monitor
+
-
Power Supply
DC 12 - 24 V
+
-
+
S
-
3-8052
3-8050.531
•
Connect the 2450 cable directly to a loop device as shown.
4. Digital
(S
3
L) wiring
•
All models of the 2450 provide Digital (S
3
L) output when powered with 5 VDC.
•
Connecting the SHIELD to a direct Earth ground may reduce electrical noise interference.
•
The maximum Digital (S
3
L) cable length is dependent upon the instrument to which the sensor is connected.
Consult the instrument manual for details.
•
Connect the 2450 cable directly to Digital (S
3
L) I/O terminals.
•
When the 2450 includes a junction box, connect the 2450
terminals to any Digital (S
3
L) I/O port as shown.
•
When the 2450 includes a junction box, connect the 2450
terminals to the loop device as shown.
5. 4 to 20 mA Loop Wiring
•
The 2450-5X and 2450-7X models provide a 4 to 20 mA loop output when powered with 24 VDC.
•
Connecting the SHIELD to a direct Earth ground may reduce electrical noise interference.
•
Red wire is not used, do not remove the heat shrink. See Section 6, 4 to 20 mA span adjustment.
5.1 Current Loop With No Junction Box
5.2 Current Loop With Junction Box
4.1 Digital
(S
3
L) With No Junction Box
4.2 Digital (S
3
L) With Junction Box
*
*
Optional Earth ground
*
+5 VDC
data
Signal Ground
+
S
-
BLK
RED
WHT
SHLD
BLK
RED
WHT
SHLD
+
S
-
Temperature
T3
29.5 ºC
Signet Multi-Parameter
Controller
C1 2.50 µS/cm
F2 58.43 GPM
Relay 1
Relay 2
ENTER
3-8052
3-8050.531
(S
3
L)
Optional
Earth ground
