Welker HBAWEL9 User manual

13839 West Bellfort Street
Sugar Land, TX 77498
281.491.2331 - Office
welker.com
©2014 Welker, Inc. All Rights Reserved.
Installation, Operation, and
Maintenance Manual
Welker® Heat Blanket
Models
HBAWEL9 & HBAWEL15
Manual No.: IOM-080
The information in this manual has been carefully checked for accuracy and is intended to be used as a guide for the
installation, operation, and maintenance of the Welker®equipment described above. Correct operating and / or installation
techniques, however, are the responsibility of the end user. Welker®reserves the right to make changes to this and all
products in order to improve performance and reliability.
This manual is intended to be used as a basic installation and operation guide for the Welker® Heat
Blanket, HBAWEL9 & HBAWEL15. For comprehensive instructions, please refer to the IOM Manuals
for each individual component. A list of relevant component IOM Manuals is given in the Appendix
section of this manual.

IOM-080 Last Updated: 10/20/2014
PART #: HBAWEL9 & HBAWEL15 Page 2 of 7
Rev: C
TABLE OF CONTENTS
Welker®, Welker Jet®, and WelkerScope®are Registered Trademarks owned by Welker, Inc.

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Rev: C
Section 1:
SPECIFICATIONS
We appreciate your business and your choice of Welker®products. The installation, operation, and
maintenance liability for this product becomes that of the purchaser at the time of receipt. Reading
the applicable Installation, Operation, and Maintenance (IOM) Manual prior to installation and
operation of this equipment is required for a full understanding of its application and performance
prior to use.*
If you have any questions, please call 1-800-776-7267 (USA) or 1-281-491-2331.
*The following procedures have been written for use with standard Welker®parts and equipment. Assemblies that have
been modified may have additional requirements and specifications that are not listed in this manual.
The Welker®Heat Blanket is designed to maintain the set temperature and prevent temperature
changes that would affect the integrity of the sample. The blanket prevents unwanted condensation
from accumulating inside sampling equipment. Two thermal layers provide superior temperature
protection and create a rugged, flexible construction. Loop and hook closures fasten the blanket to
equipment, and Velcro® straps close the seams to minimize heat loss.
An optional adjustable thermostat can be included with the blanket to further regulate temperature. If
a thermostat is not included, the blanket cable is self-regulating.
Welker®may custom design the Heat Blanket to suit the particular application and specifications
of each customer.
Notes, Cautions, and Warnings
Notes emphasize information and / or provide additional information to assist
the user.
Caution messages appear before procedures that, if not observed, could result
in damage to equipment.
Warning messages appear before procedures that, if not observed, could result
in personal injury.

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Rev: C
Table 1: Heat Blanket Specifications
Temperature Maintained
140°F @ 0°F (60°C @ -17°C)
Voltage
120VAC (Australia: 240VAC)
Area Classification
NEC Class I, Div. 2, Groups B, C, and D
IEC Zone 2
UL-Listed Components
T-Rating
T3
The specifications listed in this section are generalized for this equipment. Welker®
can modify the equipment according to your company’s needs. However,
please note
that the specifications may vary depending on the customization of your product.

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Rev: C
Section 2:
INSTALLATION & OPERATION
1. Wrap the heat blanket around the equipment.
2. Secure the heat blanket to the equipment using the loop and hook closures.
3. Close the Velcro® seams.
4. If a thermostat is not included, connect the blanket cable directly to the power source.
5. If a thermostat is included, open a small section of the heat blanket seam, and then insert the
thermostat sensor so that the thermostat sensor is between the heat blanket and the equipment.
Secure the Velcro®seam around the thermostat sensor to minimize heat loss.
6. If a thermostat is included, make the terminations from the heat blanket cable to the terminal
strip of the thermostat, and then make the terminations from the terminal strip of the thermostat
to the power source.
7. Turn ON the power source. As necessary, adjust the thermostat to the desired temperature.
8. The blanket is now in operation.
After unpacking the unit, check the equipment for compliance and for any damage that
may have occurred during shipment.
Claims for damage caused during shipment
must be initiated by the receiver and directed to the shipping carrier.
Welker® is
not responsible for any damage caused by mishandling by the shipping carrier.
When sealing fittings with PTFE tape, refer to the proper sealing instructions for the
tape used.
Electrical terminations should only be installed by a qualified electrician.
Conduit seals are provided for the cable and power source connections when a
thermostat is included.

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Rev: C
Section 3:
MAINTENANCE
1. Prior to performing maintenance on the equipment wrapped in the heat blanket, turn OFF all
electrical power.
2. Prior to performing maintenance on the equipment wrapped in the heat blanket, remove the heat
blanket from the equipment.
3. The heat blanket should be wiped down with a clean, moist cloth when maintenance is
performed on the equipment.
4. As necessary, contact Welker® for service options if the thermostat fails.
The heat blanket does not require maintenance.

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Rev: C
APPENDIX
Welker®Installation, Operation, and Maintenance (IOM) Manuals suggested for use with this unit:
None
Other Installation, Operation, and Maintenance (IOM) Manuals suggested for use with this unit:
None
Welker®drawings and schematics suggested for use with this unit:
None
13839 West Bellfort Street
Sugar Land, TX 77498
281.491.2331 - Office
welker.com