General-Purpose Scale Bases

Transcription

1 General-Purpose Scale Bases Models LB30, LB60, PL100, PL150 Instruction Manual Ohaus Corporation 1994, all rights reserved.

2 TABLE OF CONTENTS INTRODUCTION... 3 DESCRIPTION... 3 UNPACKING... 4 INSTALLATION... 4 Load Cell Cable Connections... 4 Connection to Ohaus I10 Indicator...4 Connection to Ohaus Models I5S, I20W and I150 Indicators. 4 Connection to non Ohaus Indicators...5 Leveling the Scale Base... 6 Calibration...6 CARE AND MAINTENANCE... 7 REPLACEMENT PARTS... 7 SERVICE INFORMATION... 7 SPECIFICATIONS... 8 LIMITED WARRANTY... 9

3 INTRODUCTION This manual covers installation, maintenance, replacement parts and service information for Ohaus General-Purpose Scale Bases, Models LB30, LB60, PL100 and PL150. To ensure proper operation of the Scale Base, please read this manual completely. DESCRIPTION The Ohaus General Purpose Scale Bases are rugged, precision manufactured, and, consists of a stainless steel platform, an Aluminum structure,and an anodized Aluminum load cell. These scale bases are designed to interface with Ohaus electronic indicators and work with other compatible indicators as well. All Ohaus bases are ruggedly built with overload protection to take the rough handling encountered in a busy industrial environment, yet remain highly precise. They meet NIST Handbook 44 Class III and Consumer and Corporate Affairs Canada General Class requirements for legal for trade applications. General-Purpose Scale Base 3

4 UNPACKING Carefully unpack and remove the Scale Base from the packing material. NOTE: It is recommended that you save the packing material. It will be of value when storing and/or transporting the Scale Base. INSTALLATION Load Cell Cable Connections Connect the load cell cable of the Scale Base to the indicator as follows: NOTE: These steps may be omitted if the Scale Base was purchased with the I5S as a Model BxxxS Bench Scale. Connection to Ohaus Model I10 Indicator Plug the load cell cable connector directly into the receptacle at the rear of the indicator. Connection to Ohaus Models I5S, I20W and I150 Indicators The load cell cable must be hard wired to the terminal block of the indicator. This will require removal of the load cell cable connector and preparation of the load cell wires as illustrated below. Load Cell Cable Wire Preparation 4

5 Following the instructions provided with the indicator, wire the load cell cable to the terminal block as shown in the table below. WIRE COLOR Green Black Red White Braided Shield Yellow Blue DESIGNATION +Excitation - Excitation +Signal - Signal Ground Unused Unused Be sure to insulate the braided shield and the unused yellow and blue wires to prevent electrical shorting to the indicator's circuit board. Connection to non Ohaus Indicators Connections should be made according to the instructions provided with the indicator. 5

6 Leveling the Scale Base 1. Place the Scale Base in the intended use location on a stable, level surface. 2. Remove the stainless steel Platform from the top of the Scale Base to expose the circular Spirt Level mounted in the top of the sub-platform. 3. If the bubble is not centered in the scribed circle of the Spirit Level, loosen the Locking Nuts and adjust the Leveling Feet until the bubble is centered. 4. Tighten the Locking Nuts and replace the Platform. SPIRIT LEVEL INDICATOR Scale Base (Platform Removed) Calibration Refer to the Indicator Instruction Manual for the system calibration procedure. 6

7 CARE AND MAINTENANCE To keep the Scale Base operating properly, it should be kept free from foreign materials. If necessary, a cloth dampened with water and a mild detergent may be used. Wipe the unit dry with a soft cloth. REPLACEMENT PARTS OHAUS Part No. Stainless Steel Platforms LB30 and LB60 12" x 12" PL100 and PL150 18" x 18" Plug Adjusting Foot LB30 and LB PL100 and PL SERVICE INFORMATION For service assistance in the United States, please call Ohaus Corporation toll-free at (800) An Ohaus Product Service Specialist will be available to help you. 7

8 SPECIFICATIONS MODEL LB30 LB60 PL100 PL150 Capacity (lb/kg) 30/ / / /68 Readability (lb/kg)** 0.01/ / / /0.05 Platform size (in/cm) 12 x 12/30.5 x x 18/45.7 x 45.7 Safe overload* 150% Maximum overload* 300% Linearity* 0.02% Repeatabilty* 0.01% Shift accuracy* 0.025% (50% Capacity/50% Distance)3 seconds Load cell excitation (VDC) 5 to 15 Output impedance (ohms) 350 Output at rated load (mv/v) 2 Temperature range 32 to 104 F/0 to 40 C (Non type approved) 50 to 104 F/10 to 40 C (Type approved) Net weight (lb/kg) 12/ /12.4 Shipping weight (lb/kg) 14/6.4 33/15 NIST HB44 Class III NIST/NTEP n max = 3000 n max =5000 n max = 3000 NTEP Certificate of Conformance No No Consumer and Corporate Weights and Measures Act and Regulations General Class Affairs Canada Notice of Approval No. S.WA * Specifications are given as a percent of the rated load. ** In Legal for Trade applications, readability is limited to Capacity/n max 8

9 LIMITED WARRANTY Ohaus products are warranted against defects in materials and workmanship from the date of delivery through the duration of the warranty period. During the warranty period Ohaus will repair, or, at its option, replace any component(s) that proves to be defective at no charge, provided that the product is returned, freight prepaid, to Ohaus. This warranty does not apply if the product has been damaged by accident or misuse, exposed to radioactive or corrosive materials, has foreign material penetrating to the inside of the product, or as a result of service or modification by other than Ohaus. In lieu of a properly returned warranty registration card, the warranty period shall begin on the date of shipment to the authorized dealer. No other express or implied warranty is given by Ohaus Corporation. Ohaus Corporation shall not be liable for any consequential damages. As warranty legislation differs from state to state and country to country, please contact Ohaus or your local Ohaus dealer for further details. 9

10 Ohaus Corporation 29 Hanover Road, Florham Park, NJ 07932, USA Tel: (201) , Telex: Ohaus UW, Fax: (201) Ohaus Europe Ltd. Cottenham, Cambridge, ENGLAND Tel: , Fax: Ohaus GmbH Giessen, GERMANY Tel: +49-(0) , Fax: +49 (0) Ohaus de Mexico, S.A. de C.V. Mexico, D.F. MEXICO Tel: , , Fax: Ohaus Corporation Mississauga, Ontario, CANADA Tel: (905) , Fax: (905) Ohaus s.a.r.l. Viroflay, FRANCE Tel: , Fax: Ohaus Japan Division Takarazuka, JAPAN Tel: , Fax: Ohaus Instrumentos S.A. Barcelona, SPAIN Tel: & Fax: P/N R1294