Level Alert Model Multi-Switch Liquid Level Sensor. Assembly and Installation Instructions

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Eunice Perkins
6 years ago
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1 Level Alert Model 2000 Multi-Switch Liquid Level Sensor Assembly and Installation Instructions

2 Kit Form Each unit is provided in kit form with step-by-step instructions, making it extremely easy to custom fit the level sensor to your requirements. Advantages include: 1-7 Switching Capabilities (User Positioned)- ensure precise actuation points Avoid Costly Downtime- service your units in the field Design allows for future reconfiguration Flexible Configuration- Use multiple Floats & Stop Collars Performs Functions such as: Start/Stop Pumps, Sound Alarms, Control Valves Easy Terminal Block to PLC Hookup (labeled and color coded) Ruggedly Made, Weather Proof Thermoplastic Housing Stocked Items Quick Turnaround Time WARNING For your own safety, read instruction manual Before installing your level control!!! Page 2

3 Designed to be hard-wired to remote terminals for switches, relays, controls enabling the user to perform various functions or control multiple loads. Electrical Specifications Initial Contact Resistance Breakdown Voltage Capacitance Pull in Range Release.075 Ohms Max. 500 VDC Min. 3.0 of Max AT 40-80% of Pull in Type DC Contact Ratings (Maximum at Resistive Load) Power Voltage Current *Switching *Carry 10 Watts 250 VDC.5 Amps 3.0 Amps SPDT Switch Part# LA2002 Polypropylene PVDF Mechanical Specifications Float Size 2 OD 2 OD Mounting Threaded Area 2 NPT 1 ID 1 ID OA (Overall) Length 6 ½ Diameter 3 ½ Conduit Connection ½ NPT Wetted Parts Float Polypropylene or PVDF Column Polypropylene or PVDF Stop Collar Set Screw *Standard *Optional Stainless Steel PVC, Polypropylene, or PVDF Wiring 24 Gauge switch to terminal Page 3

4 Page 4 The following components comprise your kit: Part # 1 Flange mounted terminal housing LA SP/DT Switches LA Center Core Rod LA Column LA Stop Collar LA Float LA Snap Ring LA /16 hex key 1 ¼ hex key Switch Labels Custom Column (11-20 ) LA3014 Tools Required: Pipe Cutters, Pliers and Sandpaper

5 Calculating Switch Positions and Column Length Measure from the top of the threaded area to determine switch locations and overall column length. See Figure 1. Polypropylene Units HHL = High-High Level HL = High Level LL = Low Level LLL = Low-Low Level CL = Column Length CL = LLL + 1.5" 5½ 1 PVDF Units HHL = High-High level HL = High Level LL = Low Level LLL = Low-Low Level CL = Column Length Figure 1 Page 5

6 Before you begin switch placement, refer to figure 1 on page 5 to select Operating Mode. Step 1: Cut column and center core to required length A. Determine total column length (CL) as shown in figure 1. B. Cut column to length (CL) with pipe cutters to ensure a straight cut. C. Remove burrs from inside and outside with sand paper. D. Place center-core rod inside of column. Mark center-core flush with permanent market. E. Cut center-core 1" beyond top of column length. Step 2: Position Switches on Center-Core A. Determine and mark each HHL, HL, LL and LLL location using figure 1. B. Center each switch over the marked point and temporarily hold in place (use tape, rubberbands, etc.). C. Wrap each wire set near the top with appropriately marked label (provided) for the switch (e.g. HHL). Step 3: Test Unit Using an ohm meter, test each switch location. A. Insert center core into column and place float over column. B. Check the filling and emptying levels of each switch by using the ohm meter and connecting either the green (Start- N/O) wire or the red (Stop-N/C) wire with the white (common) wire to the ohm meter. C. Run the float over the switch to check the activation level. Check: *High levels for filling modes (move the float up the column over activation point) *Low levels for emptying modes (move the float down the column over activation point). D. Make necessary adjustments and Repeat the process for each activation point. Page 6

7 Step 4: Fasten Switches A. Fasten the switches securely to the center core rod using strapping tape (this allows for easy future adjustment). Step 5: Seat Center Core for Final Assembly A. Place center core with switches into column making certain center core is seated in bottom of column. B. Apply a sufficient amount of strapping tape to the center core rod (2" below top) to stabilize the rod from jarring. (allows for future adjustment). Step 6: Seat Column into Controller Bonnet A. Remove lid of bonnet (with connected terminal housing). B. Feed wires through bonnet. C. Firmly twist top of column into bonnet until it is seated beyond the o-ring seal. D. Tighten the 2 set screws opposite each other, using the 1/16" hex key. Page 7

Step 8: Connect Controller Bonnet and Column A. Remove bonnet lid (with attached terminal connections). B. Feed each wire set through corresponding hole on square tube (eg. HHL, HL, etc). C. Strip Wire leads.

8 Step 8: Connect Controller Bonnet and Column A. Remove bonnet lid (with attached terminal connections). B. Feed each wire set through corresponding hole on square tube (eg. HHL, HL, etc). C. Strip Wire leads. D. Connect each wire into the terminal strip using the code on the square tube. Red dot = N/C, Green dot = N/O and White dot = Common. E. Replace bonnet lid and tighten screws. Figure 3 IMPORTANT Always refer to electrical specifications to confirm ratings prior to installing your controller. Testing Switches for Continuity Continuity is tested by using an ohm meter on the continuity setting by passing the float over a N/O switch. It will close creating continuity. If it passes over a N/C switch, it will break continuity. Page 8

9 Application Depending on your application of the PGK LA2000 unit, you may have purchased additional floats and stop collars. The following diagram will assist you in determining your actuation points. Float Switch Parameters Float K A 2 7/8 2 7/8 B 2 7/8 3 C 1 1/8 1 1/8 D 1 1/2 1 5/8 A. Min. distance from highest actuation point B. Min. distance between actuation points C. Min. distance between two actuation levels and one float D. Min. distance from the end of unit to the lowest level Figure 4 If you want to keep your Float in an activated position: Additional floats and stop collars can be used to hold the switches in an activated position. Place the stop collar at location HHL-.75". Refer to Figure 1. Page 9

10 LIMITED WARRANTY This is a limited warranty. All Products manufactured by PGK are warranted for THREE YEARS from date of shipment (the "Warranty Period") against manufacturing defects in material and workmanship which develop in the service for which they are designed, provided the Products are installed and used in accordance with all applicable instructions and limitations issued by PGK. PGK will at its sole discretion repair or replace a defective Product free of charge, if returned to PGK's factory, transportation charges prepaid, provided that, the Product is returned within NINETY DAYS of purchase, and after inspection of the Product, it is found to have been defective at the time of shipment to the Purchaser. This warranty is expressly conditional upon the Purchaser giving PGK immediate written notice upon discovery of the defect. Repairs or parts replaced under this warranty are warranted only throughout the remainder of the Warranty Period. This warranty is in the nature of liquidated damages to which the Purchaser might otherwise be entitled at law or in equity, and the Purchaser hereby agrees that in lieu of any action for fundamental breach of contract or breach of a fundamental term of a contract, the Purchaser will rely solely upon the warranty provided herein. This warranty shall not apply to any Product modified or changed in design or function after leaving PGK's premises or to components which are subject to the warranty conditions of another manufacturer. PGK shall not under any circumstances be liable in any respect for any defective Products beyond the Warranty Period. PGK shall not under any circumstances, including without limitation, any default, negligence or breach of whatsoever nature by PGK, be liable whether during the Warranty Period or after the Warranty Period for any claims for labor, installation costs, losses damages or other special, incidental or consequential damages including but not limited to, loss of revenue or profits, loss of use, or any damage claims arising directly or indirectly from the use of any Product or any other expenses incurred by reason of any Product found to be defective. Components used by PGK, but manufactured by others, are warranted only to the extent of that manufacturer's guarantee. This warranty shall not apply if the Product has been altered or repaired by others, and PGK shall make no allowances or credit for such repairs or alterations unless first authorized in writing by PGK. PGK shall not be liable for any damages or charges sustained in the adaptation of use of its engineering data and services. No representative of PGK may change any of the foregoing or assume on behalf of PGK any additional liability or responsibility in connection with any Product. DISCLAIMER OF WARRANTIES AND LIMITATION OF LIABILITY The foregoing warranty is exclusive and in lieu of all other warranties and representations, whether expressed, implied, oral or written, statutory or otherwise, including but not limited to, any implied warranties of merchantability or fitness for a particular purpose. All such other warranties and representations are hereby cancelled. PGK Incorporated shall not be liable for any incidental or consequential loss, damage or expense (including loss of use) caused by defects in the product or by repair of it or arising directly or indirectly from the use of the product or otherwise. PGK Incorporated shall not be liable for any damages or charges for labor or expense in making unauthorized repairs or adjustments to the product. PGK Incorporated shall not be liable for any damages or charges sustained in the adaptation of use of its engineering data and services. No representatives of PGK Incorporated may change any of the foregoing or assume any additional liability or responsibility in connection with the product. The liability of PGK Incorporated is limited to material repairs or replacements performed by PGK's employees. Page 10

11 For additional information on our product line or to request a catalog, please contact us. PGK Inorporated P.O. Box 263 Hobart, WA Phone: Tollfree Fax: Website:

Manufacturing Facility is ISO9001:2000. Welded Steel Pipe Conform to ASTM A53. Threads Conform to ASME B1.20.1

STEEL NIPPLES S40 & S80 Steel Nipple Product Specifications Manufacturing Facility is ISO9001:2000 Welded Steel Pipe Conform to ASTM A53 Threads Conform to ASME B1.20.1 800-678-2544 800-678-0857 www.msi-products.com