Murphy L1100 Series Installation And Operation Manual
Liquid level switches
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Also See for L1100 Series:
- Specification sheet (2 pages) ,
- Specification sheet (4 pages) ,
- Installation (4 pages)
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Summary of Contents for Murphy L1100 Series
- Page 1 LS200, LS200N, LS200NDVOR Series and L1100 Liquid Level Switches Installation and Operations Manual 00-02-0563 01-11-06 Section 15...
- Page 2 The latest version of this manual can be found at www.fwmurphy.com. Warranty A limited warranty on materials and workmanship for one year is given with this FW Murphy product. A copy of the warranty may be viewed or printed by going to www.fwmurphy.com/support/warranty.htm CAUTION: LS200 Series parts are not interchangeable with other Murphy liquid level products.
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Page 3: Table Of Contents
LS200...1 LS200NDVOR...2 LS200NDVO ...3 LS200N ...3 Pressure Vessel Installation: LS200, LS200N and L1100... 4 Direct Installation into the Wall of the Pressure Vessel ...4 Installation with a Weld Collar ...4 Installation Using Murphy External Float Chamber ...5 Installation and Adjustment for Pneumatic Models...5 Trip Cam Operating Lever Orientation ...6... - Page 4 (THIS PAGE INTENTIONALLY LEFT BLANK)
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Page 5: Product Information
SPDT snap switch (optional DPDT on some models) for alarm or shutdown of an engine or electric motor. The LS200 connects via a thread-o-let directly into the vessel wall and can be used with a weld collar (P/N 15050375) or Murphy external float chamber. L1100 models (1-1/2” NPT) are also available. -
Page 6: Ls200Ndvor
Pneumatic media devices require clean, dry, instrument quality air or gas. This unit is supplied with a pressure regulator, filter and Murphy 20BPG pressure gage for improved system life and trouble-free operation. LS200NDVOR pneumatic level switch with dump valve operator, pressure regulator and... -
Page 7: Ls200Ndvo
LS200NDVO Pneumatic level switch with snap action Dump Valve Operator (DVO) without the pressure regulator for those applications where the system provides a filter regulator for “instrument quality” air or gas as the control medium. LS200NDVO pneumatic level switch with dump valve operator LS200N Pneumatic level switch without the DVO and filter regulator. -
Page 8: Pressure Vessel Installation: Ls200, Ls200N And L1100
Screw the unit directly into the threaded connection in the wall of the pressure vessel. For LS200 and L1100, verify that the electrical connection is positioned at the bottom. For LS200N the 1/8” NPT pneumatic connection should be on top (the 3/8”... -
Page 9: Installation Using Murphy External Float Chamber
Installation Using Murphy External Float Chamber Install the Murphy float chamber 15051098 or 15051168 on the outside wall of the pressure vessel using 1” NPT piping or use the mounting surface with a bracket. Position the 2” NPT threaded connection at the height where you want the level switch to operate. -
Page 10: Trip Cam Operating Lever Orientation
Valve seat adjustment can be made if air/gas begins to leak. Care should be taken when adjusting as only slight movement is necessary to stop the leakage; excessive force will bind the seating mechanism. See the instruction below for adjustment. CAUTION: Avoid excessive Teflon tape which may inhibit proper operation. -
Page 11: Replacing And Installing The Dvo Assembly
Replacing and Installing the DVO Assembly NOTE: When replacing/installing the DVO assembly, tubing and fitting modifications may be required. We suggest removing the LS200NDVO/DVOR from the vessel. Relieve pressure from the vessel or use block valves before removing the LS200NDVO/DVOR. Models LS200NDVO &... - Page 12 Instructions Block off and bleed the instrument gas pressure supply to the LS200NDVO/DVOR. Remove the tubing between the LS200NDVO/DVOR and the scrubber dump valve, and remove the supply gas tubing (regulator [-R-] if used). Remove the LS200NDVO/DVOR from the vessel (optional). If the LS200NDVO/DVOR was removed from the vessel, mount it in a suitable vise on a work bench (if possible).
- Page 13 CAUTION: Ensure that the actuator arm is not bent during reassembly. With the DVO aligned over the hex on the LS200NDVO body, tighten the valve using the 9/16” hex wrench. You may need to hold the DVO while tightening to keep it from rotating.
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Page 14: Electrical
Electrical Replacement Parts CAUTION: LS200 Series parts are not interchangeable with other Murphy liquid level products. Damage caused by the above mentioned is not covered by our Limited Warranty. Order by part number designation. LS200 15000479: Stainless Steel float for LS200 (not interchangeable with L1200) -
Page 15: Accessories
L1100 15000893: BUOYGLAS™ float 15000937: Stainless steel float 15000124: SPDT snaps switch assembly 15000892: Float shaft extension Accessories 15050375: Weld Collar Operating Pressure: 2000 psi (13.8 MPa) [138 bar]. Operating Temperature: 400°F (204°C). 55050617: DVU150/DVU175 Adapter Bushing Order by part number designation... -
Page 16: 15051098: External Float Chamber
15051098: External Float Chamber Operating pressure: 2000 psi (13.8 MPa) [138 bar] Operating temperature: 400°F (204°C). 15051168: CB External Float Chamber Operating pressure: 2000 psi (13.8 MPa) [138 bar] Operating temperature: 400°F (204°C). Section 15 00-02-0563 01-11-06 - 12 -... -
Page 17: 15000478: Float Shaft Extension
15000478: Float Shaft Extension CAUTION: For use on LS200 only. Not interchangeable with L1200 parts. Section 15 01-11-06 - 13 - 00-02-0563... -
Page 18: Specifications
• Process connection: 2” NPT • Vent valve: 2 way N.C. snap action w/ 1/16in. (2mm) orifice and Viton seat; Inlet: 1/8” NPT; outlet 3/8” NPT L1100 • Process connection: 1-1/2” NPT • Pressure rating: 1500 psig (10.3 MPa) [103.2 bar] •... - Page 19 Murphy Industries, Inc. This document, including textual matter and illustrations, is copyright protected by Murphy Industries, Inc., with all rights reserved. (c) 2005 Murphy Industries, Inc. Other third party product or trade names referenced herein are the property of their respective owners and are used for identification purposes only.
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