HI HLPT SERIES LOAD POINT ASSEMBLIES OPERATION AND INSTALLATION MANUAL Corporate Headquarters 9440 Carroll Park Drive, Ste. 150 San Diego, CA 92121 Phone: (858) 278-2900 FAX: (858) 278-6700 Web-Site: http://www.hardysolutions.com Hardy Process Solutions Document Number: 0596-0239-01 Rev F Copyright 2012 Hardy Process Solutions, Inc. All Rights Reserved. Printed in the U.S.A.
Local Field Service Hardy has over 200 field technicians in the U.S., and more positioned throughout the world to assist you in your support needs. We also have factory engineers who will travel to your facility anywhere in the world to help you solve challenging applications.
Table of Contents Table of Contents - - - - - - - - - - - - - - - - - - - - i General Information - - - - - - - - - - - - - - - - Unpacking - - - - - - - - - - - - - - - - - - - - - Site Preparation - - - - - - - - - - - - - - - - - - Precautions - - - - - - - - - - - - - - - - - - - - Basic Engineering Principles for Positioning Load Point Assemblies - - - - - - - - - - - - - - - - - - - Typical Mounting Arrangements - - - - - - - - - - Load Sensor Orientation - - - - - - - - - - - - Round Vessel with 1 Lo
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CAUTION: UNPACK WITH CARE WHEN UNPACKING, DO NOT DISCARD THE PACKING CASE OR ANY PACKING MATERIAL, UNTIL THE CONTENTS OF THE PACKING CASE ARE INSPECTED AND CAREFULLY COMPARED WITH THE SHIPPING DOCUMENTS. IF ANYTHING IS UNSATISFACTORY, PLEASE NOTIFY HARDY IMMEDIATELY BY CALLING, FAXING OR E-MAILING TO: Customer Support Department HARDY PROCESS SOLUTIONS, INC. 9440 Carroll Park Drive, Ste.
OPERATION AND INSTALLATION MANUAL Congratulations, on your purchase of the Hardy Advantage Load Point Assembly. This product, is engineered to set a new standard in load point assemblies. Hardy combined new innovations with previously extra cost features and just plain common sense features and provided you with optimum performance unequaled anywhere. General Information The Hardy HI HLPT Hermetic Load Point System is designed to provide accurate output in the most demanding applications.
HI HLPT SERIES LOAD POINT ASSEMBLY • • Site Preparation • • Precautions • • • Basic Engineering Principles for Positioning Load Point Assemblies • • • Page 2 tory, such damage is normally the responsibility of the carrier and should be reported to them. LOAD SENSOR CERTIFICATION SHEETS ARE AVAILABLE 24 HOURS A DAY AT OUR WEBSITE: http://www.hardysolutions.com Write down the serial number(s) on the inside of the back cover for reference when talking to Hardy Customer Service.
OPERATION AND INSTALLATION MANUAL Typical Mounting Arrangements Load Sensor Orientation FIG. 1: LOAD SENSOR ORIENTATION Round Vessel with 1 Load Point FIG.
HI HLPT SERIES LOAD POINT ASSEMBLY Round Vessel with 3 Load Point Assemblies FIG. 3: VERTICAL TANK - 3 LOAD CELLS Safety Rods FIG. 4: SPACE REQUIRED FOR SAFETY RODS CAUTION: Page 4 THE ORIENTATION OF THE TOP AND BOTTOM CLEVIS ASSEMBLY MUST BE AT 90° AS SHOWN IN FIG. 4. IMPROPER ORIENTATION CAUSES THE CLEVISES TO MISALIGN.
OPERATION AND INSTALLATION MANUAL CAUSE THE EYE END OF THE EYE BOLTS TO SHEAR AND/OR PRODUCE AN INACCURATE WEIGHT READING. Round Vessel with 4 Load Point Assemblies FIG. 5: 4 LOAD POINT ASSEMBLY NOTE: In case there is some doubt concerning load point assembly installation, contact your local Hardy Representative, Hardy Process Solutions, Application Engineering or Customer Support Department for assistance.
HI HLPT SERIES LOAD POINT ASSEMBLY The type of installation will govern the method of locating, attaching and assembling the parts of a load point. The following is a typical installation: Removing the Load Sensor Step 1. Step 2. Step 3. Step 4. Step 5. Step 6. Step 7. Step 8. Step 9. Installing a New Load Sensor Page 6 Step 1. Step 2. Check to be sure you have all the parts. Take the load off the load cell. Use a flat screw driver and push the retaining rings off the clevis pin on both clevis mounts.
OPERATION AND INSTALLATION MANUAL FIG. 6: ISO ASSEMBLY DRAWING Troubleshooting Physical Checks Before doing any electrical tests do the following: Step 1. Step 2. Visually inspect each load point assembly for physical damage. Look for distortions or cracks in all metal parts. Check all welds to be sure they are not cracked of have deep pot marks.
HI HLPT SERIES LOAD POINT ASSEMBLY Step 3. Step 4. Step 5. Step 6. Step 7. Check all cables for cracks, cuts or crimping. Check for any abrasions on the cables. Look for structural changes in the scale or supporting structures. Look for binding of any kind on the load point assembly. Refer to your Hardy Manual for information on how to troubleshoot using Integrated Technician. For your convenience this manual is available on the Hardy Web site at: http://www.hardyinst.com on the support page.
OPERATION AND INSTALLATION MANUAL Step 2. If the output has shifted more than 10%, replace the sensor. Assumption: A 5VDC excitation on a sensor with a 3mV/V output sensitivity, a 1% shift in zero balance will yield a.1mV/V change from the specification. Bridge Resistance Test Problem: Changes in Bridge Resistance Cause: Failure of a compensating element, or by a broken or burned bridge wire. Often cause by an electrical transient such as lightning. Remedy: Step 1.
HI HLPT SERIES LOAD POINT ASSEMBLY Step 2. Use a megohmmeter and measure the resistance between all five wires tied together and the load cell metal body. • WARNING WHEN USING A MEGGER DO NOT EXCEED 50 VOLT RANGE. • • Step 3. Electrical Termination Cable Color Codes The measured value should be 5,000 megohms or more. If the sensor fails this test remove the ground wire and test with only the four live leads. If the sensor passes the test an insulation problem in the cable is most likely.
OPERATION AND INSTALLATION MANUAL Model Numbers NOTE: The -43C indicates a stainless steel load sensor with stainless steel mounting hardware. For galvanized mounting hardware use -45 C Capacity Model # Model # LBS Kn Fixed Assembly Spare Load Sensor 225 1 HI HLPT225-43C HI STH06-225 450 2 HI HLPT450-43C HI STH06-450 1,125 5 HI HLPT1125-43C HI STH06-112K 2.25K 10 HI HLPT2.25K-43C HI STH01-2.25K 4.5K 20 HI HLPT4.5K-43C HI STH01-4.5K 11.25 50 HI HLPT11.25K-45C HI STH01-11.
HI HLPT SERIES LOAD POINT ASSEMBLY Four Leg Systems Total Capacity Model # Pounds Kn HI 4T900-43 900 4 HI 4T1.8K-43 1.8K 8 HI 4T4.5K-43 4.5K 20 HI 4T9K-43 9K 40 HI 4T18K-43 18K 80 HI 4T45K-45 45K 200 TABLE 3: FOUR LEG SYSTEMS Specifications Operating Specifications Rated Output (F.S.
OPERATION AND INSTALLATION MANUAL Environmental Specifications Operating Temperature - - - - - - - - Compensated Temperature - - - - - - Load Sensor Material - - - - - - - - - Load Sensor Fittings - - - - - - - - - - Top Plate & Base Plate Material - - Conduit Adapter - - - - - - - - - - - - - Hermetic Sealing Gauging Area - - - - - - - - - - Cable Entry - - - - - - - - - - - - Minus 40o F to Plus176o F (-40o C to +80o C) 14o F to 104o F (Minus 10o C to Plus 40o C) 17-4PH Martensitic (Magnetic) Stainless S
HI HLPT SERIES LOAD POINT ASSEMBLY Please print the unit serial number and model number for reference when ordering parts for the HI HLPT Load Point Assembly The serial number can be found on the side of the load sensor, or by entering the SelfTest Mode of the HI 2151/30WC.
