SOR 1520 OEM Flow Switch - Manual (Page 8)

8/8 Form 454 (11.13) ©SOR Inc.
14685 West 105th Street, Lenexa, KS 66215  913-888-2630  800-676-6794 USA  Fax 913-888-0767
Registered Quality System to ISO 9001
Printed in USA sorinc.com
Part Number Description
3130-091 W9 - SPST Hermetically Sealed Switch Capsule
3130-245 W1 - SPDT Hermetically Sealed Switch Capsule
3130-259 W1 - SPDT Switch/Conduit Connection Assembly (CK Option Only)
3130-107 L9 - SPST Hermetically Sealed Switch Capsule
3130-244 L1 - SPDT Hermetically Sealed Switch Capsule
3130-260 L1 - SPDT Switch/Conduit Connection Assembly (CK Option Only)
3130-118 316SS Vane Assembly
3130-403 Actuator Arm Replacement Kit (1-1/2” NPT body size)
3130-404 Actuator Arm Replacement Kit (2” NPT body size)
Replacement Parts
For Type 1520 Flow Switches equipped with DPDT relays, a wiring schematic and pin position
schematic is shown on page 2. When the 1520 is actuated, the coil will energize and “make”
both NO1 and NO2 while it will “break” NC1 and NC2. This provides a DPDT circuit.
Troubleshooting
3
NO 1
4
NC 1
5
NC 2
6
NO 2
2 1 8 7
C1 C2
Switch Capsule
Black
Lead White
Lead 1
2
7
8 C2
C1
NC 2
NO 2
NC 1
6
4
3 NO 1
Power Supply Relay Coil
5
DPDT Relay Schematic
Symptom Probable Cause(s)
Vane in actuated position but no output signal a. No power supply.
b. Switch damaged. (Replace)
Vane in de-actuated position but still receiving
an output signal. a. Switch damaged. (Replace)
Control will not function when installed but
operates when removed from process
connection. a. Inadequate vane travel. Vane travel
restricted by mounting nozzle. See Mounting
Requirements.
Flow in pipe at the actuation rate but unit
does not respond. a. Damaged vane. (Replace)
b. Flow rate too low.
c. Vane bound up or dirty. (Clean)