1510 Side Mounted
Level Switch
General Instructions
The SOR® 1510 Level Switch mounts into the side of a vessel. Electric switching action is
provided by the float moving a magnet into the field of a hermetically sealed reed switch
capsule.
The unit may be mounted for either high or low liquid level alarm by rotating the switch
rench flats provide for ease of rotation and proper
body to the proper position. The body wrench
positioning. See decal on housing.
Before Installation of the Level Switch:
 Inspect the unit for any shipment damage.
maage.
 Check for mechanical clearance of
the float. Float must move freely without binding throughout its stroke.
 Use an acceptable thread compound when installing unit to ensure a leak-free fit and to
avoid thread galling.
 To achieve required function, install the unit according to the nameplate instructions
shown here.
NOTE: If you suspect that a product is defective, contact the factory or the SOR Representative
in your area for a return authorization number (RMA). This product should only be installed by
trained and competent personnel.
THIS SIDE UP
N.C. @ HIGH LEVEL
Nameplate Position
for Low Level Alarm
THIS SIDE UP
N.C. @ HIGH LEVEL
THIS SIDE UP
N.C. @ LOW LEVEL
THIS SIDE UP
N.C. @ LOW LEVEL
NC - indicates
circuit is closed
Nameplate Position
for High Level Alarm
Table of Contents
Design and
specifications are
subject to change
without notice.
For latest revision, go to
www.SORInc.com
Form 451 (04.16) ©SOR Inc.
Installation ...................................... 3
SIL Installation Instructions .................. 3
Float Attachment ............................... 3
Dimensions ..................................... 4
Electrical Connection.......................... 5
Special Conditions............................. 5
Wiring for DPDT Relay ........................ 6
ATEX and IECEx Marking Details ............ 6
Declaration of Conformity .................... 7
Troubleshooting ................................ 8
Replacement Parts ............................ 8
Registered Quality System to ISO 9001
1/8
Installation
The unit may be mounted in any of the following installation arrangements:
 1-1/2” NPT half coupling (No full coupling).
 2” NPT full coupling. (Use in conjunction with 2 x 1-1/2” NPT bushing as required.)
 2” NPT pipe tee. (Use in conjunction with 2 x 1-1/2” NPT bushing as required.)
 Optional flanged mounting.
 Optional chamber mounting.
MD Remote Option (includes plundger, 20 foot cable and two crimps.)

 Screw plunger to the top of unit.
 Thread the 20’ cable through the hole in plunger and create a 14 inch top loop as
shown below.

At the bottom of the cable, a second loop can be created as a handle for actuation at
the desired length.
Linear = mm/inches
Drawing 0098636
PLUNGER
TOP 14” LOOP
REMOTE CABLE
CRIMP
REMOTE MANUAL CHECK
MD OPTION
CREATE HANDLE AT DESIRED LENGTH
2/8
Form 451 (04.16) ©SOR Inc.
Safety Integrity Level (SIL) Installation Requirements
The SOR pressure switches have been evaluated as Type-A safety related hardware.
To meet the necessary installation requirements for the SIL system, the following
information must be utilized:
„ Proof Test Interval shall be one year.
„ Units may only be installed for use in Low Demand Mode.
„ Products have a HFT (Hardware Fault Tolerance) of 0, and were evaluated in a
Form 1538 (03.12) ©2012 SOR Inc.
1oo1 (one out of one) configuration.
Float Attachment (Series 1500 with Flange)
 Place two drops of Loctite 271
inside the threaded hole of the float.
 Thread the float onto the set
screw and hand-tighten.
SET SCREW
NOTE: Do not remove the set screw as
it secures the pivot arm to the shaft.
APPLY TWO DROPS
LOCTITE 271 INSIDE
THREADED HOLE
OF FLOAT
FLOAT
Linear = mm/inches
Drawing 0390747
Form 451 (04.16) ©SOR Inc.
3/8
Dimensions
Linear = mm/inches
Drawing 0390693
MC or MD MANUAL
CHECK OPTION
MD INCLUDES 20FT
LONG CABLE
12.7
0.50
100.9
3.97
BODY
19.1
0.75
1-1/2" NPT(M) PROCESS
CONNECTION
FLOAT
54.0
2.12
14.3
0.56
WIRE LEADS
457.2
MIN LENGTH
18.00
COLOR CODED
AND MARKED
44.5
1.75
WRENCH
FLATS
144.5
5.69
69.9
2.75
78.0
3.07
1/2"NPT(F)
ELECTRICAL
CONNECTION
14685 W 105TH ST LENEXA KS
With CK Accessory – ATEX and IECEx dual approved:
Linear = mm/inches
Drawing 0390760
44.5 WRENCH FLATS
1.75
457.2
MIN LENGTH
18.00
COLOR CODED AND MARKED
WIRE LEADS
1-1/2" NPTM PROCESS CONNECTION
OR FLANGE MOUNTING (NOT SHOWN)
BODY
FLOAT
55.6
2.19
14.3
0.56
31.5
1.24
MAX
22.2 WRENCH FLATS
0.87
1/2" NPTF
ELECTRICAL
CONNECTION
1
53.8 1
2.12
FLOAT
TRAVEL
177.8
7.00
79.0 REF
3.11
NOTES:
1. ACTUATE / DEACTUATE POINTS VARY. OPERATES
56.4
SATISFACTORILY IN 2" FULL COUPLING (
ID)
2.22
Dimensions are for reference only. Contact the factory
for certified drawings for a particular model number.
4/8
Form 451 (04.16) ©SOR Inc.
Electrical Connection
Ensure that the wiring conforms to all applicable local and national electrical codes and
install unit(s) according to relevant national and local safety codes.
Electrical connection is free wire leads with a 1/2” NPT(F) conduit connection. Use two
wrenches — one to hold the hex conduit connection, the other to tighten conduit fitting.
Switching element is a hermetically sealed reed switch.
SPST
Reed Switch
Capsule
Normally Open White Lead
Common Black Lead
SPDT
Reed Switch
Capsule
Common Black Lead
Normally Closed White Lead
Do not exceed
catalog stated electrical
ratings. Improper
current input to switch
will cause permanent
damage to contacts.
Normally Open Blue Lead
Special Conditions for Safe Use
This apparatus may have a combined nameplate which carries multiple approvals
(intrinsically safe and flameproof). The equipment should be marked as to which protection
method it is installed as and shall not be changed or utilized in any other means than was
originally marked by the end user.
When marked and installed as Ex i equipment, the permanently attached leads must be
suitably protected against mechanical damage and terminated in a suitable junction box or
terminal facility having a degree of protection at least IP20.
When marked and installed as Ex d equipment, the permanently attached leads must be
suitably protected against mechanical damage and terminated in a suitable junction box or
terminal facility.
Form 451 (04.16) ©SOR Inc.
5/8
Wiring for DPDT Relay
For Type 1510 Level Switches equipped with DPDT relays, a wiring schematic and pin
position schematic is shown below. When the 1510 is actuated, the coil will energize and
“make” both NO1 and NO2 while it will “break” NC1 and NC2. This provides a DPDT circuit.
Switch Capsule
Black
Lead
White
Lead
8
C2
NC 2
NO 2
5
6
1
C1
NC 1
NO 1
4
3
2
1
C1
8
7
C2
2
Power
Supply
Relay Coil
3
NO 1
7
4
NC 1
5
NC 2
6
NO 2
ATEX and IECEx Marking Details
For ATEX and IECEx Certified Models
Manufacturer’s
Registered Trademark
Drawing 0720554
ATEX Listing
Information
Product Type
Identification
Product Model Identification
Standards Assessed To
ATEX Certification: EN 60079-0: 2009 & EN 60079-11: 2007
EN 60079-0: 2012, EN 60079-1: 2007,
EN 60079-11: 2012 & EN 60079-26: 2007
IECEx Certification: IEC 60079-0: 2011, IEC 60079-1: 2007-04,
IEC 60079-11: 2011 & IEC 60079-25: 2010-02
IEC 60079-0: 2004 & IEC 60079-11: 1999
6/8
Form 451 (04.16) ©SOR Inc.
Declaration of Conformity
For ATEX Certified Models
EC Declaration
of Conformity
Product
Type 1500 Electric Switches
Manufacturer
SOR Inc., 14685 West 105th Street, Lene
xa, Kansas 66215-2003
5NITED3TATESOF!MERICA
Date of Issue
April 20, 2016
We declare that the above
products conform to
the following specifications
and directives
Carries the Marking
!4%8$IRECTIVE%5%QUIPMEN
T)NTENDEDFORUSE
IN0OTENTIALLY%XPLOSIVE!TMOSPHERES
%.%.
)%#)%#
%.% .
%.%.
)%#)%#
)%#)%#
!4%8-ARKING
)%#%X-ARKING
II 1 G Ex ia IIC Ga
4²#d4Ad²#OR
4²#”4A”²#
4²#d4Ad²#OR
4²#”4A”²#
II 2 G Ex d IIC Ga/Gb
Reference Documents
ATEX Notified Body
Person Responsible
Ex ia IIC Ga
4²#d4Ad²#OR
4²#”4A”²#
Ex d IIC Ga/Gb
4²#d4Ad²#OR
4²#”4A”²#
EC-Type Examination Certificate
Baseefa06ATEX0271X, IECEx BAS
06.0063X
)SSUED*ANUARY
Baseefa13ATEX0056X, IECEx BAS
13.0035X
)SSUED*ULY
SGS Baseefa Ltd..OTIlED"ODY.O
2OCKHEAD"USINESS0ARK3TADEN,ANE
"UXTON$ERBYSHIRE3+2 :5NITED+
INGDOM
"ASEEFA#USTOMER2EFERENCE.O
-ICHAEL*"EQUETTE60OF%NGINEERING
-ICHAEL*"EQUETTE
Engineered to Order with Off
-the-Shelf Speed
14685 West 105th Street, Lenexa, KS
66215-2003
s53!s
&!8
Form 1385 (04.16) SOR Inc.
Form 451 (04.16) ©SOR Inc.
7/8
Troubleshooting
Symptom
Probable Cause
Float in actuated position but no output
signal.
 No power supply.
 Switch damaged. (Replace.)
Float in de-actuated position but still
receiving an output signal.
 Switch damaged. (Replace.)
Control will not function when installed
but operates when removed from process connection.
 Inadequate float travel. Float travel
restricted by mounting nozzle. See
Mounting Requirements.
Liquid in vessel at the actuation level
but unit does not respond.
 Leaky or collapsed float. (Replace.)
 Liquid specific gravity too low.
 Float stem bound up or dirty. (Clean.)
Replacement Parts
Part Number
Description
3130-052
316SS Float Assembly
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)
9227-028
MC Manual Check Assembly for 1 1/2” NPT Body*
9227-029
MD Manual Check Assembly for 1 1/2” NPT Body*
9227-024
MC Manual Check Assembly for 2” NPT Body*
9227-025
MD Manual Check Assembly for 2” NPT Body*
3130-040
20’ Remote Cable with two cable crimps, for use with MC or MD
accessory only.
* Unit must have originally been supplied with MC or MD option.
SORInc.com
14685 West 105th Street, Lenexa, KS 66215  913-888-2630  800-676-6794 USA  Fax 913-888-0767
8/8
Registered Quality System to ISO 9001
Form 451 (04.16) ©SOR Inc.