Related Manuals for Welker HR
Summary of Contents for Welker HR
- Page 1 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WELKER HEATED INSTRUMENT REGULATOR MODEL DRAWING NUMBER ADHRO02 PATENT U.S. PATENT 7,471,882 MANUAL NUMBER IOM-158 REVISION Rev. 1, 03/08/2023...
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Page 2: Table Of Contents
Maintenance Heater Failure APPENDIX A: Referenced or Attached Documents Copyright © 1997–2023 Welker, Inc. All rights reserved. Welker®, W Welker®, W logo, WelkerScope®, Welker Jet®, and OdorEyes® are registered trademarks of Welker, Inc. IOM-158 MODEL: HR REV: 1 13839 West Bellfort Street, Sugar Land, TX 77498 welker.com... -
Page 3: Safety
IOM Manuals for each individual component. A list of relevant component IOM Manuals is provided in Appendix A of this manual. 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 in this manual. -
Page 4: Product Information
The HR heats product prior to decreasing the pressure to help compensate for the natural temperature drop that occurs during regulation. In order to set the desired output pressure, an adjusting screw on the device is turned clockwise. The design of the HR allows for the sample stream to flow through at a consistent rate of pressure and temperature. -
Page 5: Important Certification Information
1.3 Important Certification Information Ensure that the field technician installing the HR is trained in the protection practices required to maintain the area classification for electrical equipment in ATEX and IECEx hazardous locations. Before connecting power to the HR, the technician shall ensure that cabling components supplied by the end-user are certified for explosion protection flameproof enclosure "d". -
Page 6: Specifications
1.5 Specifications The specifications listed in this section are generalized for this equipment. Welker can modify the equipment according to your company's needs. Please note that the specifications may vary depending on the customization of your equipment. Table 1: HR Specifications... -
Page 7: Equipment Diagram
1.4 Equipment Diagram Figure 1: Welker Heated Instrument Regulator Diagram IOM-158 MODEL: HR REV: 1 13839 West Bellfort Street, Sugar Land, TX 77498 welker.com Service Department: 281.491.2331... -
Page 8: Installation & Operation
Operation, and Maintenance (IOM) Manual for the relief valve for instructions on setting the relief. If a Welker relief valve is used, Welker can set the relief valve prior to shipment if requested at the time of order. As necessary, install the set relief valve to the relief valve port (Figure 2). - Page 9 Secure the cover to the certified enclosure and fasten the set screw. Using customer-supplied ¼" tubing, connect from the product supply outlet to the product inlet of the HR (Figure 1). Install customer-supplied tubing or other fittings to the product outlet port of the HR (Figure 1 or Figure 2).
- Page 10 (Figure 1). Turn ON the electrical power to begin operation. Allow at least thirty (30) minutes for the HR to warm up. Welker recommends that the unit be enclosed or insulated to maximize the heating effect of the HR.
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Page 11: Maintenance
All maintenance and cleaning of the unit should be performed on a smooth, clean surface. Welker recommends having the following tools available for maintenance. Please note that the exact tools required may vary by model. 6" and 10" Channel Lock Pliers b. -
Page 12: Maintenance
Turn OFF all electrical power to the unit and isolate it from all applicable energy sources. The HR will be HOT after use. Allow an appropriate amount of time for the regulator to cool down prior to performing maintenance. Disconnect the electrical wiring and ensure that it cannot become live while maintenance is performed (Figure 3). - Page 13 To perform maintenance on a cartridge-style regulator, continue to step 13. To perform maintenance on a diaphragm-style regulator, proceed to step 20. To perform maintenance on a piston-style regulator, proceed to step 28. IOM-158 MODEL: HR REV: 1 13839 West Bellfort Street, Sugar Land, TX 77498 welker.com...
- Page 14 Install the spring housing to the regulator body (Figure 5). When reassembling the upper housing, HAND TIGHTEN ONLY. Proceed to step 38 for instructions on maintaining the regulator body. IOM-158 MODEL: HR REV: 1 13839 West Bellfort Street, Sugar Land, TX 77498 welker.com...
- Page 15 Install the spring housing to the regulator body (Figure 6). When reassembling the upper housing, HAND TIGHTEN ONLY. Proceed to step 38 for instructions on maintaining the regulator body. IOM-158 MODEL: HR REV: 1 13839 West Bellfort Street, Sugar Land, TX 77498 welker.com...
- Page 16 Following a cross-bolting sequence, install the cap screws to the spring housing, and then tighten to secure the spring housing to the regulator body (Figure 8). Figure 8: Cross-Bolting Sequence Continue to step 38 for instructions on maintaining the regulator body. IOM-158 MODEL: HR REV: 1 13839 West Bellfort Street, Sugar Land, TX 77498 welker.com Service Department: 281.491.2331...
- Page 17 Return the spring to the poppet. Return the flow ring to the regulator body and tighten firmly using a socket wrench. Proceed to step 54 for reassembly instructions. IOM-158 MODEL: HR REV: 1 13839 West Bellfort Street, Sugar Land, TX 77498 welker.com...
- Page 18 Following a cross-bolting sequence, insert the tie bolts through the base to the regulator body, and then tighten firmly (Figure 9). The HR is now ready for installation. See Section 2.2, Installing the HR, for instructions on correctly installing the unit. IOM-158...
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Page 19: Heater Failure
Turn OFF all electrical power to the unit and isolate it from all applicable energy sources. DO NOT open the certified enclosure until it can no longer be a potential ignition source. Ensure that the HR is isolated from all incoming and outgoing connections (including neutral conductors) prior to opening the certified enclosure. -
Page 20: Appendix
APPENDIX A: REFERENCED OR ATTACHED DOCUMENTS Welker Installation, Operation, and Maintenance (IOM) Manuals suggested for use with this unit: IOM-033: Welker RV-1, RV-2, RV-2CP, and RV-3 Relief Valves IOM-234: Welker RV-110A and RV-110V Relief Valves Other Installation, Operation, and Maintenance (IOM) Manuals suggested for use with this unit: ... - Page 21 _______________________________________________________________________________________________________________________________________ _______________________________________________________________________________________________________________________________________ _______________________________________________________________________________________________________________________________________ _______________________________________________________________________________________________________________________________________ _______________________________________________________________________________________________________________________________________ _______________________________________________________________________________________________________________________________________ _______________________________________________________________________________________________________________________________________ _______________________________________________________________________________________________________________________________________ _______________________________________________________________________________________________________________________________________ _______________________________________________________________________________________________________________________________________ _______________________________________________________________________________________________________________________________________ _______________________________________________________________________________________________________________________________________ 13839 West Bellfort Street Sugar Land, TX 77498 Phone: 281.491.2331 welker.com IOM-158 MODEL: HR REV: 1 13839 West Bellfort Street, Sugar Land, TX 77498 welker.com Service Department: 281.491.2331...
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