Washdo. wn Scale Base

Transcription

1 Washdo ashdown wn Scale Base Models WB10, WB25, WB50, WBS10, WBS25 and WBS50 Instruction Manual Ohaus Corporation 1994, all rights reserved.

2 INTRODUCTION This manual covers installation, and operation for the WB and WBS Series Washdown Scale Base, Models WB10, WB25,WB50, WBS10, WBS25 and WBS50. To ensure proper operation, please read this manual completely. DESCRIPTION The WB Series Washdown Scale Base consists of a stainless steel structure and platform and an anodized Aluminium load cell. It is intended for use in a washdown environment and may be hosed down using steam or detergents. The WB Series is NOT intended for use in extremely hostile environments where caustic materials are present in the atmosphere or are used during cleaning. Misuse of this equipment may void the Warranty. The WBS Series Washdown Scale Base, which utilizes a stainless steel structure, platform and load cell is recommended for such applications. 2

3 APPROVALS The WB and WBS Series of Washdown Scale Bases meet the requirements of NIST Handbook 44, as listed below: Certificate of conformance was issued for the WB Series and Certificate of Conformance was issued for the WBS Series under the National Type Evaluation Program of the National Conference on Weights and Measures. ASSEMBLY MODEL TYPE APPROVED CAPACITY X RESOLUTION WB10 10 lb lb WB25 25 lb lb WB50 50 lb 0.01 lb WBS10 10 lb lb WBS25 25 lb.01 lb WBS50 50 lb.02 lb The WB and WBS Series have also been approved by the U.S. Department of Agriculture for use in Federally inspected meat and poultry processing plants. UNPACKING AND SET UP 1. Carefully remove the Scale Base from the packing material and place it on a level and stable surface. 2. Remove the stainless steel Platform and set it aside. 3. Locate the Level Indicator on the Sub-Platform. 4. The Level Indicator bubble should be totally enclosed by the scribed inner circle. If leveling is required, loosen the locking Nuts of the four Leveling Feet and adjust them until the Load Receiver is level. Retighten the Locking Nuts when leveling has been completed. 5. Place the Platform on the Sub-Platform. NOTE: It is recommended that the packing material be saved for use when storing or transporting the Scale Base. When the Scale Base is to be used with an OHAUS I20W Washdown Indicator, connect the Load Cell cable to the Indicator as indicated in the table. DESCRIPTION COLOR WB Series WBS Series + Excitation Green Red - Excitation Black Black + Output Red Green - Output White White Ground Shield Shield 3

4 CALIBRATION Prior to calibration of the weighing system, the Scale Base should be exercised by applying and removing the full scale weight value several times to ensure more accurate calibration. ACCESSORIES AND REPLACEMENT PARTS DESCRIPTION OHAUS PART NUMBER Stainless Steel Platform (9" x 9") Stainless Steel Platform (12" x 12") 10 lb WB Load Cell lb WB Load Cell lb WB Load Cell lb WBS Load Cell lb WBS Load Cell lb WBS Load Cell Adjusting Foot Tower Accessory Kit (for use with OHAUS I20W Indicator only). 11" Tall " Tall NOTE: The 11" Tower is recommended for use with WB10 and WBS10. 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. PARTS INFORMATION If you require replacement parts or would like to purchase accessories, please call Ohaus Corporation toll-free at (800) , an Ohaus Product Parts Specialist will be available to help you. 4

5 SPECIFICATIONS MODEL WB10 WBS10 WB25 WBS25 WB50 Capacity (lb) WBS50 Readability (lb) Platform size (in) 9 x 9 12 x x 12 Corner capacity* 100% Safe overload* 150% Maximum overload* 300% Linearity* 0.015% 0.03% 0.015% 0.03% 0.015% 0.03% Repeatability* 0.01% 0.01% 0.01% 0.01% 0.01% 0.01% Shift accuracy* 0.02% 0.05% 0.02% 0.04% 0.02% 0.04% (50% Capacity/ 50% Distance) Load excitation (V dc) 5V to 15V Output impedance (ohms) 350 Output at rated load (mv/v) 2 Temperature range 32 to 104 F/0 to 40 C Storage temperature -30 to 70 C range Zero Tc* (%/ C) Span Tc* (%/ C) * Values are given as % of rated load. 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. 5

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