Hardy HI LPRC03 User Manual

HI LPRC03 SERIES

LOAD POINT ASSEMBLIES

OPERATION AND INSTALLATION

MANUAL

Corporate Headquarters

9440 Carroll Park Drive Suite 150, San Diego, CA 92121 Phone: (858) 278-2900 FAX: (858) 278-6700 Web-Site: http://www.hardyinst.com

Hardy Instruments Document Number: 0596-0309-01 Rev. B

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. We're ready to support you with:

• Installation and start-up

• Routine maintenance and certification

• Plant audits and performance measurement

• Emergency troubleshooting and repair

To request Emergency Service and Troubleshooting, Start-up, Installation, Calibration, Verification or to discuss a Maintenance Agreement please call 800-821-5831 Ext. 1757 or Emergency Service after hours (Standard Hours

6:00 AM to 6:00 PM Pacific Standard Time) and weekends

Ext. 1111.

Outside the U.S

Hardy Instruments has built a network of support throughout the globe. For specific field service options available in your area please contact your local sales agent or our U.S. factory at +1 858-292-2710, Ext. 1757.

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Table of Contents

Table of Contents - - - - - - - - - - - - - - - - - - - -Page i

General Information- - - - - - - - - - - - - - - - - - - - - - -Page 1 Unpacking - - - - - - - - - - - - - - - - - - - - - - - - - - -Page 1 Precautions- - - - - - - - - - - - - - - - - - - - - - - - - - -Page 1 Site Preparation - - - - - - - - - - - - - - - - - - - - - - - -Page 2 Basic Engineering Principles for Positioning

Load Point Assemblie s - - - - - - - - - - - - - - - - - - - -Page 2

Typical Mounting Arrangements- - - - - - - - - - - - - - - - -Page 3

Round Vessel - 3 Load Point Assemblies - - - - - - - - - -Page 3 Round Vessel - 4 Load Point Assemblies - - - - - - - - - -Page 3

Installing a Mount Assembly - - - - - - - - - - - - - - - - - -Page 4

Installing the Load Sensor - - - - - - - - - - - - - - - - -Page 7

Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - -Page 9

Physical Checks - - - - - - - - - - - - - - - - - - - - - -Page 9

Electrical Tests for Load Point Assembly Problems - - - - -Page 10 Zero Balance Test - - - - - - - - - - - - - - - - - - - - - - -Page 10 10Bridge Resistance Test- - - - - - - - - - - - - - - - - - - -Page 10 Resistance to Ground Test - - - - - - - - - - - - - - - - - - -Page 11 Electrical Termination Cable Color Codes - - - - - - - - - - - -Page 11 Model Numbers- - - - - - - - - - - - - - - - - - - - - - - - -Page 11 Specifications- - - - - - - - - - - - - - - - - - - - - - - - - -Page 12 Drawings- - - - - - - - - - - - - - - - - - - - - - - - - - - -Page 13 Record Model Information- - - - - - - - - - - - - - - - - - - -Page 18

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 INSTRUMENTS IMMEDIATELY BY CALLING, FAXING OR E-MAILING TO:

Customer Support Department HARDY INSTRUMENTS, INC. 9440 Carroll Park Drive, Suite 150 San Diego, CA 92121

Phone: (800) 821-5831

(858) 278-2900 FAX: (858) 278-6700 E-mail: hardysupport@hardyinst.com

Web Address: www.hardyinst.com

TO RETURN DEFECTIVE OR DAMAGED PRODUCT(S) CALL HARDY TECHNICAL SUPPORT FOR A HARDY SERVICE TICKET NUMBER (HST#). YOUR COMPANY NAME, ADDRESS, TELEPHONE NUMBER, SERIAL NUMBER OF THE UNIT AND A BRIEF DESCRIPTION OF THE PROBLEM SHOULD BE READY WHEN CALLING. FOR ALL NON-WARRANTY REPAIRS A PURCHASE ORDER OR CREDIT CARD IS ALSO REQUIRED. OR USE OUR ON-LINE HST # REQUEST FORM AT WWW.HARDYINST.COM UNDER ONLINE SUPPORT AND THEN FACTORY REPAIR. FOLLOW THE DIRECTIONS AND THEN SUBMIT THE REQUEST FORM. AN HST# WILL BE ISSUED AND EMAILED

IN CASE OF DAMAGE DUE TO SHIPPING, NOTIFY THE DELIVERING CARRIER IMMEDIATELY FOR AN INSPECTION.

OPERATION AND INSTALLATION MANUAL

General Information The Hardy Instruments (HI) LPRC03 Low Profile

Series, with self-aligning load points, is designed for

applications in hoppers, tanks and silos. The HI

LPRC03 Advantage Loadpoint consists of a hermeti-

cally sealed, stainless steel load sensor (gauge area

and cable entry), with Enhanced C2

Second Generation Calibration, and a matched mV/V and mV/V/ Ohm and a 1/4 inch conduit adapter and mount.

The HI LPRC03 mount eliminates the effects of unwanted forces, which makes it well suited for hi gh capacity vessels. Its performance exceeds IP68 and NEMA 6 Standards for Wash Down Resistance, ensuring accurate output even for th e most demanding applications.

The mount comes preassembled, with the top plate centered to the bottom of the unit using two heavy bolts to hold the parts together. Each load point is fitted with a grounding strap. The mounti ng hardwa re is available in either stainless or zinc plated steel.

Unpacking The load sensor is shipped in a separate container. Do

not remove it from it’s packaging until just before installation. Although the load sensor is designed for harsh environments, it is a precision instrument and should be treated as such.

Precautions • Always treat the Load Sensor as a precision

instrument. Leave the assembly in its packaging until it is time for installation.

• NEVER CARRY OR SWING THE LOAD SEN-

SORS BY THEIR CABLE.

• Never let moisture get into any interconnections.

• Inspect the box, packing, and lo ad point assembly

for any signs of damage. Since most load point assemblies are shipped F.O.B. our factory, such damage is normally the responsibility of the carrier and should be reported to them.

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HI HLPRC03 SERIES LOAD POINT ASSEMBLY

LOAD SENSOR CERTIFICATION SHEETS ARE AVAILABLE 24 HOURS A DAY AT OUR WEB SITE: http://www.hardinst.com. Go to “Products” or “Support,” click Advantage Load Sensor Tool/Certification, then follow directions.

Note the serial number(s) for reference when talking to Hardy Customer Service. Store this information in a safe location for future reference.

Site Preparation As foundations for the load point assemblies, use a

metal base plate that will not be deformed when you weld it to the bottom plate of the load point.

• Check the I/I diagrams that come with this document for th e assembly ’s dimensions. (Th ey are also available on the Hardy Instruments Web Site (http://www.hardyinst.com ).

• All mounting surfaces for the base and loading plate must be level. Load Point Assemblies must be level to within 0.4/100 for legal or trade applications or 0.8/100 for general applications.

• Complete all welding before installing the load sensor.

Basic Engineering Principles for Positioning Load Point Assemblies

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Note the following requirements when positioning the Load Point.

• Position the Load Point Assemblies to distribute the load (weight) as evenly as possible between each load point assembly in the scale.

• When the installation does not allow even load distribution, select higher capacity load point assemblies.

• All load point assemblies must have the same capacity when used in one scale.

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