Optimizing Your Plants Weighing Equipment

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1 Optimizing Your Plants Weighing Equipment

2 Introduction to Scales By Marchus Funke

3 History of Scale 1 st known weighing device around 2,000 B.C. 17 th century Richard Salter invented the spring scale 20 th century development of digital scales Early balance scale and weight stones Digital Scale Spring Scale

Legal for Trade In all commercial applications where

that weighing equipment must be verified as legal for

National Type Evaluation Program (NTEP) National

4 Legal for Trade In all commercial applications where product is sold by weight, it is a legal requirement that weighing equipment must be verified as legal for trade or 'trade approved'. National Type Evaluation Program (NTEP) National Institute of Standards and Technology (NIST) NIST published Handbook 44 NTEP Load Cell

5 Federal Grain Inspection Service (FGIS) Established in 1976 by Congress Oversees U.S. grain and related products for domestic and export Examples: barley, corn, wheat, mixed grain, rice, etc. Regulate quality and handling practices

6 Packers & Stockyards Packers & Stockyards Act, 1921 Purpose: Regulate interstate and foreign commerce in live stock, live-stock produce, dairy, poultry, etc. Today: Role has expanded

7 Mechanical vs. Electronic Mechanical Scale System Electronic Scale System

8 Mechanical Scales Mechanical scales: Spring scales, hanging scales, triple beam balances and force gauges Lever Systems: A lever is a machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum.

9 Electronic Scales 20 th century mechanical weighing and electronics used in combination Development of load cells, transducers Load cells are used in every electronic weighing device Load Cell Types: Shear Beam Double-ended Compression S-type

10 Indicators Visual display of weight applied to a device Digital Weight Indicator The indicator powers and controls the scale Dozens of functions and features

Weight Standards & Test Weights Standard known weight

weights that require tweezers to weights so heavy

Weight Measurements: Milligrams to megatons Construction:

11 Weight Standards & Test Weights Standard known weight applied to a weighing device to verify scale Range: small weights that require tweezers to weights so heavy specialized lifting equipment is required. Weight Measurements: Milligrams to megatons Construction: stainless steel and cast iron are standard materials used (come in different shapes and sizes)

12 Calibration Ensure scale accuracy and repeatability Frequency: base on scale usage Certificate of Calibration Weights & Measures: All commercial devices must be sealed with local county officials and recalibrated every year to secure proper seal

13 Scale Examples Scales range from lab scales to truck scales Truck Scale Lab Scale Floor Scale

14 Maintenance

15 Safety Identify risks Follow company safety guidelines

16 Maintenance Keep clean Keep dry Use properly Test

17 Maintenance

18 Maintenance: Scale Companies

19 Troubleshooting

20 Troubleshooting: Describe issue What equipment When did issue begin What has changed Observe issue

21 Troubleshooting: Inspection

22 Inspection: Platform Alignment Cleanliness Damaged/broken components

23 Inspection: Indicator Power Condition Setup Wiring

24 Inspection: Load Cells Wiring Condition Positioning

25 Inspection: Junction Box Wiring Condition

26 Repairs Fix issues found

The most accurate lab scales are capable

27 Analytical Balances Analytical Balances are often referred to as lab scales or lab balances Designed for Accuracy, Resolution & Repeatability Most commonly used in Labs & Quality Assurance Departments Most Lab Scales are portable The most accurate lab scales are capable of weighing to the level of 1 million parts per gram

Types of Balances Analytical Balances Accurate to 0.

Precision Balances Accurate from 1 gram - 0.

Mechanical Balances Use beams and movable weights to measure

28 Types of Balances Analytical Balances Accurate to 0.1 milligram or higher, draft shield standard. Precision Balances Accurate from 1 gram gram, draft shield not standard. Mechanical Balances Use beams and movable weights to measure mass. Moisture Balances Used to measure moisture content by drying samples and comparing masses. Specific Gravity Use underhooks for weighing specimens in water to calculate specific gravity. Micro Balances Accurate to milligram or higher.

Bench Scales are offered in a wide variety of capacity and sizes depending upon application specifications and requirements

29 Bench Scales Bench scales are made up of a scale base and indicator. Commonly bench scales have an indicator column to mount the indicator. Bench Scales are offered in a wide variety of capacity and sizes depending upon application specifications and requirements Bench scales can be used as a portable or stationary weighing solution Most quality bench scales are designed with durability and resistance to environmental hazards in mind Most bench scales have overload and shock load resistance built-in

30 Types of Bench Scales Counting Scales Over/Under Checkweighing Price Computing Scales Basic Weighing Scales

31 Floor Scales Floor Scales are heavy-duty Industrial Scales designed to be loaded from the top Floor scales can be used in stationary or portable applications Most floor scales use (4) Load Cells (One in each corner) Range in Size : 2 x 2 to 12 x 12 Range in Capacity: 1,000lb to 80,000lb

32 Types of Floor Scales Bin Filling Floor Scale with Ramp Stainless Steel Tank Weighing Floor Scale

33 Portable floor scale with battery powered indicator Stainless Steel Floor Scale w/forklift Portability Kit

34 Stainless Steel Quick Clean Floor Scale & Pit Frame Coil Scale

Livestock Scales Livestock scales take many different forms and are designed with weighing animals in mind The size of the scale used is determined by the

35 Livestock Scales Livestock scales take many different forms and are designed with weighing animals in mind The size of the scale used is determined by the size and number of the animal(s) being weighed Livestock scales are built with frames and gates to keep the animals on the scale while they are being weighed

36 Types of Livestock Scales Portable Livestock Scale Single Chute Stationary Livestock Scale

Conveyor & Belt Scale Conveyor & Belt Scales are in-motion weighing solutions Belt scales are installed under conveyor rollers along a conveyor frame Belt scales measure the amount of

37 Conveyor & Belt Scale Conveyor & Belt Scales are in-motion weighing solutions Belt scales are installed under conveyor rollers along a conveyor frame Belt scales measure the amount of the material crossing the weigh bridge and multiply that weight data by the speed at which the belt is running Belt scales usually provide weight information in the form of tons per hour

production and run reports over the internet This ability

38 Conveyor & Belt Scale Plant Connection New technology is providing belt scale users with the ability to monitor production and run reports over the internet This ability improves plant efficiency and allows users to accurately track inventory

In-Motion Checkweighing In-Motion Checkweighing is designed to help automate production and processing of packages and items by weighing products as they are

39 In-Motion Checkweighing In-Motion Checkweighing is designed to help automate production and processing of packages and items by weighing products as they are processed on a conveyor belt In-Motion Checkweighers can capture data, apply a label and process items as quickly as 60 units per minute as items cross the scale

40 In-Motion Checkweighing Peripheral Equipment Pacing Conveyors (Entrance & Exit) Metal Detection Reject Arms & Conveyors Label Printing Target Weighing Barcode Readers Data Communication Devises Software Plant Connection Inventory Tracking

41 Forklift Scales Forklift scales are designed to expedite the Weighing Process Forklift scales allow operators to weigh the load without having to load and unload the object on a scale (often at a remote location). Forklift scales can be used to monitor employee productivity.

Wired or Wireless connection between the indicator and the scale on

42 Types of Forklift Scales A forklift scale s weighing components are installed between the fork tongs and lift mast. Wired or Wireless connection between the indicator and the scale on the mast of the lift truck. Forklift scales can be installed on both gas and electric lift trucks.

43 Hopper Scales Any vessel outfitted with a weighing system. Huge variety of shapes and sizes from 200 to 1,000,000 lbs. Generally not legal for trade.

44 Types of Hopper Scales Most hopper scales weighing systems are field installed. Almost any vessel can be converted into a hopper scale.

46 Weigh Modules for Hopper Scales Many styles of load cell weigh modules. Designed for all environments: stainless steel, mild steel, washdown, etc.

47 Truck Scales

48 Weigh vehicles. Most common way for companies to buy and sell commodities. Pre 1985, truck scales were mechanical. Today almost all are electronic. Can be installed in a pit or above ground with ramps, and can have steel or concrete decks.

49 Types of Truck Scales Axle Pads Axle Scales

52 Rail Scales Weigh rail cars, either one set of axles or the entire car. Most common way for companies to buy and sell rail cars of commodities. Static or In-motion

53 Types of Rail Scales Non Legal for trade option is much less expensive Can still make sure cars are maximized but not overloaded

55 Questions

Product Application Guidelines. Platform Scales

Product Application Guidelines Platform Scales Table of Contents Preface... 3 Introduction... 4 Platform scale selection... 4 Locating the scale... 5 Location... 5 Vibration... 5 Floor... 5 Bench... 5