PMC EL-51A-4 User manual

EL-51A-4
TEMPERATURE
SENSING
UNIT
Manual
Ref. # MN-04016
Revision 1.2
April 2, 2019
REVISION 1.2
April 2, 2019
Polyurethane Machinery Corp.
Corporate: 1 Komo Dr, Lakewood, NJ 08701
Manufacturing: 2 Komo Dr, Lakewood, NJ
08701
Phone: [phone]
Fax: [phone]
URL: http://www.polymacusa.com
Before using the TSU, carefully read all the technical and safety
documentation included in this manual. Pay special attention to the
information in order to know and understand the operation and the
conditions of use of the TSU. All of the information is aimed at improving
user safety and avoiding possible failures from the incorrect use of the
TSU.

Rev 1.2, 4/2/19 ii
EL-51A-4
TABLE OF CONTENTS
TABLE OF CONTENTS
WARRANTY............................................................................................................................1
SAFETY AND HANDLING......................................................................................................3
CHARACTERISTICS ..............................................................................................................5
TECHNICAL SPECIFICATIONS.............................................................................................5
DESCRIPTION........................................................................................................................6
INSTALLATION ......................................................................................................................7
TROUBLESHOOTING............................................................................................................8
PARTS IDENTIFICATION.....................................................................................................10
MANUAL REVISIONS ..........................................................................................................11

Rev 1.2, 4/2/19 1
EL-51A-4
WARRANTY
WARRANTY
Polyurethane Machinery Corporation (hereinafter “PMC”) provides this LIMITED WARRANTY
(hereinafter “Warranty”) to the original purchaser (hereinafter “Customer”) covering this equipment
and the original PMC manufactured accessories delivered with the equipment (hereinafter “Product”)
against defects in material or workmanship of the Product (hereinafter “Defect” or “Defective”) for a
period of one (1) year from the date of first purchase as shown on the original PMC invoice
(hereinafter “Warranty Period”).
If during the Warranty Period under normal use, the Product is suspected by Customer to be
Defective in material or workmanship, it is Customer’s responsibility to contact PMC and return the
Product to PMC as directed by PMC, freight prepaid. If PMC determines that the Product is Defective
and that such Defect is covered by this Warranty, PMC will credit Customer for the reasonable freight
charges incurred by Customer in returning the Defective Product to PMC, and PMC (or its authorized
agent) will, at PMC’s option, repair or replace the Product, subject to the following:
Original Invoice: The original invoice must be kept as proof of the date of first sale and the Product
serial number. The Warranty does not cover any Product if the Original Invoice appears to have been
modified or altered, or when the serial number on the Product appears to have been altered or
defaced.
Product Maintenance: It is the Customer’s responsibility to maintain the Product properly. See your
maintenance schedule and owner’s manual for details. The Warranty does not cover an improperly
maintained Product.
Non-PMC Components and Accessories: Non-PMC manufactured components and accessories that
are used in the operation of the Product are not covered by this Warranty. Such components and
accessories shall be subject to the warranty offered to the Customer, if any, by the original
manufacturer of such component or accessory.
Other Warranty Exclusions: The Warranty does not cover any Product that PMC determines has been
damaged or fails to operate properly due to misuse, negligence, abuse, carelessness, neglect, or
accident. By way of example only, this includes:
Normal wear and tear.
Improper or unauthorized installation, repair, alteration, adjustment or modification of the
product.
Use of heating devices, pumping equipment, dispensers, or other parts or accessories with the
product that have not been approved or manufactured by PMC.
Failure to follow the operating instructions and recommendations provided by PMC.
Cosmetic damage.
Fire, flood, “acts of God,” or other contingencies beyond the control of PMC.

Rev 1.2, 4/2/19 2
EL-51A-4
WARRANTY
THE WARRANTY DESCRIBED HEREIN IS THE EXCLUSIVE REMEDY FOR THE
CUSTOMER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS, IMPLIED,
STATUTORY OR OTHERWISE, AND THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND ALL OTHER
WARRANTIES ARE HEREBY DISCLAIMED. TO THE FULLEST EXTENT PERMITTED BY
LAW, PMC SHALL NOT BE RESPONSIBLE, WHETHER BASED IN CONTRACT, TORT
(INCLUDING, WITHOUT LIMITATION, NEGLIGENCE), WARRANTY OR ANY OTHER
LEGAL OR EQUITABLE GROUNDS, FOR ANY CONSEQUENTIAL, INDIRECT,
INCIDENTAL, LOST PROFITS, SPECIAL, PUNITIVE OR EXEMPLARY DAMAGES,
WHETHER TO PERSON OR PROPERTY, ARISING FROM OR RELATING TO THE
PRODUCT, EVEN IF PMC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
LOSSES OR DAMAGES.
Non-Warranty Service by PMC: If PMC determines that the suspected Defect of the Product is not
covered by this Warranty, disposition of the Product will be made pursuant to the terms and conditions
of PMC’s written estimate on a time and materials basis.
Continuing Warranty for Products Repaired or Replaced under Warranty: Following the repair or
replacement of a Product covered by this Warranty, such Product will continue to be subject to the
original Warranty for the remainder of original Warranty Period or for three (3) months from the repair
or replacement date, whichever is longer.
No Rights Implied: Nothing in the sale, lease or rental of any Product by PMC shall be construed to
grant any right, interest or license in or under any patent, trademark, copyright, trade secret or other
proprietary right or material owned by anyone; nor does PMC encourage the infringement of same.
Exclusive Warranty: This writing is the final, complete, and exclusive expression of the Warranty
covering the Product. Any statements made by PMC, its employees or agents that differ from the
terms of this Warranty shall have no effect. It is expressly understood that Customer’s acceptance of
this Warranty, by performance or otherwise, is upon and subject solely to the terms and conditions
hereof, and any additional or different terms and conditions proposed or expressed by Customer or
anyone, whether in writing or otherwise, are null and void unless specifically agreed to in writing by an
Officer of PMC.

Rev 1.2, 4/2/19 3
EL-51A-4
SAFETY AND HANDLING
SAFETY AND HANDLING
This chapter contains important information on the safety, handling, and use of your TSU.
Before using the TSU, carefully read all the technical and
safety documentation included in this manual. Pay special
attention to the information to know and understand the
operation and the conditions of use of the TSU. All of the
information is aimed at enhancing User Safety and avoiding
possible failures derived from the incorrect use of the TSU.
WARNING! Presents information to alert of a situation that might cause serious
injuries if the instructions are not followed.
CAUTION! Presents information that indicates how to avoid damage to the
Proportioner or how to avoid a situation that could cause minor injuries.
NOTE! Is relevant information of a procedure being carried out.
Careful study of this manual will enable the operator to know the characteristics of the TSU
and the operating procedures. By following the instructions and recommendations contained
herein, you will reduce the potential risk of accidents; you will provide a better opportunity for
incident-free operation for a longer time, greater output, and the possibility of detecting and
resolving problems quickly and simply.
Keep this Operations Manual for future consultation of useful information at all times. If you
lose this manual, ask for a new copy from your PMC Distributor or go online and visit our web
site at www.polymacusa.com.

Rev 1.2, 4/2/19 4
EL-51A-4
SAFETY AND HANDLING
The TSU has been designed and built for the application of polyurea chemical systems, polyurethane
foam chemical systems, and some two-component epoxy systems.
Always use liquids and solvents that are compatible with the unit. If in doubt, consult your PMC
Distributor.
When working with the TSU, it is recommended that the operator wear suitable clothing and elements
of personal protection, including, without limitation, gloves, protective goggles, safety footwear, and
face masks. Use breathing equipment when working with the TSU in enclosed spaces or in areas with
insufficient ventilation. The introduction and follow-up of safety measures must not be limited to those
described in this manual. Before using the TSU, a comprehensive analysis must be made of the risks
derived from the products to be dispensed, the type of application, and the working environment.
To prevent possible injury caused by incorrect handling of the raw
materials and solvents used in the process, carefully read the Safety Data
Sheet (SDS) provided by your supplier.
Deal with the waste caused according to current regulations.
To avoid damage caused by the impact of pressurized fluids, do not open
any connection or perform maintenance work on components subject to
pressure until the pressure has been completely eliminated.
Use suitable protection when operating, maintaining or being present in
the area where the equipment is functioning. This includes, but is not
limited to, the use of protective goggles, gloves, shoes and safety clothing
and breathing equipment.
The equipment includes components that reach high temperatures and
can cause burns. Hot parts of the equipment must not be handled or
touched until they have cooled completely.
To prevent serious injury through crushing or amputation, do not work
with the equipment without the safety guards installed on the moving
parts. Make sure that all the safety guards are correctly reinstalled at the
end of the repair or maintenance work of the equipment.

Rev 1.2, 4/2/19 5
EL-51A-4
CHARACTERISTICS
CHARACTERISTICS
Accurate and precise
Compact design
Easy to install
Low maintenance
TECHNICAL SPECIFICATIONS
Thermocouple Type................................................................................................Type E
Temperature Range ...............................................................0 to 1000 oF (-18 to 540oC)
“A” Side Fittings....................................................................................................... -5 JIC
“R” Side Fittings....................................................................................................... -6 JIC
Air Fittings............................................................................................................1/4” NPT

Rev 1.2, 4/2/19 6
EL-51A-4
DESCRIPTION
DESCRIPTION
A.
Thermocouple Connector
B.
Flexible Metal Conduit
C.
“A” Side Inlet Fitting
D.
“A” Side Outlet Fitting
E.
Sensing Wire
F.
“R” Side Inlet Fitting
G.
TSU Body
H.
“R” Side Outlet Fitting
I.
Air Inlet Fitting
J.
Air Outlet Fitting

Rev 1.2, 4/2/19 7
EL-51A-4
INSTALLATION
INSTALLATION
CAUTION! Connecting the TSU between the first and second section of
Heated Hose results in the TSU sensing the material temperature exiting the
Heater and not the inside of the Heated Hose near the Spray Gun.
CAUTION! To protect the TSU sensor, pay special attention not to kink or
excessively bend the Heated Hoses. Do not coil the Heated Hoses with a
diameter of less than 4 feet (1.22 meters).
*Recommended order of connections
1. It is recommended that the TSU be
installed between the last section of
Heated Hose and the Gun Whip.
2. Before fastening all hoses, install the
insulation (not shown) onto the hoses.
3. Carefully straighten the sensing wire and
insert it into the Iso (A) Heated Hose
4. Tighten all fluid fittings with appropriate
sized open-end wrenches.
5. Secure the thermocouple connectors
6. Slide the insulation over the TSU.

Rev 1.2, 4/2/19 8
EL-51A-4
TROUBLESHOOTING
TROUBLESHOOTING
This chapter contains information on possible faults that may interrupt the operation of the
TSU. The information provided will serve as a guideline to detect and resolve problems. In
any case, feel free to contact your authorized PMC Distributor, where a qualified technician
will advise you.
CAUTION! All repairs performed by unqualified personnel or the use of spares
other than originals may cause damage to the unit and put the operator at risk.
To prevent possible injury caused by incorrect handling of the
raw materials and solvents used in the process, carefully read
the safety data sheet provided by your supplier.
Deal with the waste caused according to current regulations.
To avoid damage caused by the impact of pressurized fluids,
do not open any connection or perform maintenance work on
components subject to pressure until the pressure has been
completely eliminated.
Use suitable protection when operating, maintaining or being
present in the area where the equipment is functioning. This
includes, but is not limited to, the use of protective goggles,
gloves, shoes and safety clothing and breathing equipment.
The equipment includes components that reach high
temperatures and can cause burns. Hot parts of the equipment
must not be handled or touched until they have cooled
completely.
To prevent serious injury through crushing or amputation, do
not work with the equipment without the safety guards installed
on the moving parts. Make sure that all the safety guards are
correctly reinstalled at the end of the repair or maintenance
work of the equipment.

Rev 1.2, 4/2/19 9
EL-51A-4
TROUBLESHOOTING
PROBLEM
Hose does not heat and the display on the controller shows a flashing error message:
“EEEE” on the Auber controller, “SbEr” on the Eaton controller, or “S.ERR” on the Omron
controller.
SOLUTIONS
1. Check the thermocouple terminals (TC+ and TC-) on the heater controller for loose
wires and improper connections. There should be a purple wire connected to the TC+
Terminal and a red wire connected to the TC- Terminal. See Table 1 below for
terminal connections for each type of controller.
Table 1: Heater Controller Terminals and Thermocouple Wire Connections
AUBER
EATON
OMRON
TC+ Terminal (Purple Wire)
Terminal 7
Terminal 9
Terminal 12
TC- Terminal (Red Wire)
Terminal 6
Terminal 10
Terminal 11
If connections are secure, move to the next step.
2. Remove the transformer cover and ensure the thermocouple wires are secure to the
harness going up to the controller.
If connections are secure, move to the next step.
3. Disconnect the wire from the TSU and connect it directly to the thermocouple harness
coming out of the hose transformer.
If the controller still shows the error code, replace the hose thermocouple.
If the error code goes away and temperature is now shown on the display of the
controller, then all the TSU harnesses from the TSU to the transformer need to be
checked for loose connectors or one or more of the harnesses are defective.

Rev 1.2, 4/2/19 10
EL-51A-4
PARTS IDENTIFICATION
PARTS IDENTIFICATION
EL-51A-4
ITEM
QTY
PART NUMBER
DESCRIPTION
1
1
EL-51A-2
FLEX THERMOCOUPLE
2
1
EL-00051A-3
1/8 X #4 JIC FEM SWIVEL FTG
3
1
EL-00051A-4
1/4 X #5 JIC MALE FTG
4
1
EL-00051A-5
1/4 X #6 JIC FEMALE SWIVEL FTG
5
1
EL-00051A-6
1/4 X #6 JIC MALE FTG
6
1
EL-00051A-7
1/4 X #5 JIC FEMALE SWIVEL FTG
7
1
EL-00051A-8
INSULATION
8
1
EL-00051A-9
TSU WITH AIR
9
1
EL-00051A-10
1/4 MNPT X 1/4 FNPT SWIVEL
10
1
GP-00100-1
1/4 PIPE NIPPLE

Rev 1.2, 4/2/19 11
EL-51A-4
MANUAL REVISIONS
MANUAL REVISIONS
Revision
Date
Changes
Approved
1.0
09-01-2015
Initial release of EL-51A-4 Manual.
Vadams
1.1
09-15-2017
Change position of the page number
from bottom center to bottom right.
SS
1.2
04-02-2019
Updated TSU construction and pictures
consistent with ECO 10095.
PJS