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LAKEWOOD INSTRUMENTS 

MODEL 543 

 

4-ELECTRODE  CONDUCTIVITY 

SENSORS 

 
 

INSTALLATION & OPERATION MANUAL 

 
 
 
 
 

 

 

543-M 

 

 

 

543-L 

 

 

 

543-LL 

 
 
 
 
 

Lakewood Instruments 

7838 North Faulkner Road, Milwaukee, WI 53224 USA 
Phone (800) 228-0839 • Fax (414) 355-3508 
h t t p : / / w w w . l a k e w o o d i n s t r u m e n t s . c o m  

 

 
 
 
 
 
 
 

Summary of Contents for 543

Page 1: ...TRODE CONDUCTIVITY SENSORS INSTALLATION OPERATION MANUAL 543 M 543 L 543 LL Lakewood Instruments 7838 North Faulkner Road Milwaukee WI 53224 USA Phone 800 228 0839 Fax 414 355 3508 h t t p w w w l a k e w o o d i n s t r u m e n t s c o m ...

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Page 3: ...uble free service Please take the time to read and understand the operation manual paying special attention to the sections on INSTALLATION and MAINTENANCE If in the future any parts or repairs are required we strongly recommend that only original replacement parts be used Our Customer Service Department would be happy to assist you with your parts or service requests We thank you for your selecti...

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Page 5: ...UCTION 5 Features Benefits Specifications 5 Ordering Information 6 INSTALLATION 7 Installation 7 Storage 8 Sensor Life 8 Cleaning 8 REPLACEMENT PARTS 9 Replacement tips 9 Accessories 9 MAINTENANCE AND TECHNICAL SERVICE 10 DRAWINGS 11 3 ...

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Page 7: ...als 5x CPVC 150 F 66 C 100 psi 7 bar CPVC Glass Carbon Viton 8x 316 SS 260 F 127 C 150 psi 10 bar 316 SS Glass Viton Electrode Specifications Electrode Conductivity Range Temp Compensator Max Temp Max Pressure 543 M 500 100 000 µS 4K NTC 392 F 200 C 250 psi 17 bar 543 L 100 1 000 µS 4K NTC 392 F 200 C 250 psi 17 bar 543 LL 10 500 µS 1K NTC 392 F 200 C 250 psi 17 bar 5 ...

Page 8: ...ngth Electrode 543 M 0 in NPT adapter 4T 4 in steel adapter must use 5 5 Option 5 5 in STD 543 L 1 NEMA 4X w amplifier 5S CPVC no fitting 10 in 543 LL 2 Aluminum encl w amp 8S 316 SS no fitting 18 in 3 Aluminum enclosure 8I 316 SS w Swagelock fitting 1 in NPT 48 in 4 240 in of cable 8R 316 SS w ball valve 1 in NPT 5 NEMA 4X enclosure Example 543 M 4 8R 18 STD Amplifier options 1 and 2 are only ava...

Page 9: ...e DWG 04259 in the back of this manual The 543 series sensors have 6 wires They are as follows Black wire Electrode Red wire Electrode White wire Electrode Green wire Electrode Black wire Temp compensation 4K NTC or 1K PTC Black wire Temp compensation Cable length of Conductivity sensors is measured from the electrode tips to the end of the wire Twenty 20 feet is the maximum cable length Lakewood ...

Page 10: ...water and chemicals used Temperature of water Pressure of water Ambient temperatures low pressures and water with no chemicals are ideal for longest life Cleaning Conductivity sensors may be cleaned with a nylon brush or clean paper towel Cleaning frequency will vary with the type of process water Cleaning should be done at least once a month or if conductivity readings become unstable 8 ...

Page 11: ...placement titanium 316 SS sensor tip 543L STD Standard replacement titanium 316 SS sensor tip 543LL STD Standard replacement titanium 316 SS sensor tip for Model 1743 only Accessories ADAPTER 68893 Adapter from sensor cable end to NPT female 69168 316 SS compression fitting 1 in NPT connection 69058 316 SS Ball valve 1 in NPT connection PREAMP 67230 Remote conductivity preamp 68900 Manual for remo...

Page 12: ...ame address phone and fax numbers shipping and billing A hard copy purchase order number no exceptions for cases where repairs or parts are required that are not under warranty A contact person s name and phone number to call if the equipment is beyond repair or to discuss any other warranty matter Equipment model and serial numbers Reason for return i e repair warranty incorrect part etc We will ...

Page 13: ...DRAWINGS 11 ...

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Page 18: ... Manufactured in the USA Lakewood Instruments 7838 North Faulkner Road Milwaukee WI 53224 USA Phone 800 228 0839 Fax 414 355 3508 h t t p w w w l a k e w o o d i n s t r u m e n t s c o m Copyright 1997 Lakewood Instruments LLC Printed in USA P N 1109982 Rev A ...

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