OHAUS 5-0-2 Instruction Manual

HOW TO USE THE LARGE POISE (500 GRAIN)The principle of the large poise consists of an accurately adjusted weight whichmoves parallel to the longitudinal axis of the beam and which is positioned atweight values by means of a pawl engaging notches in the beam. The poise runis from 0 to 500 grains. The equally-spaced notches divide this distance into 100equal parts so that each subdivision is equivalent to 5 grains of weight.To zero the large poise, move it to the position where the pawl, located on theright side of the poise, engages the first notch on the right end of the poise travel.The poise indicator will line up with the zero graduation.To increase weight values, move the poise to the left and line up the indicatorwith the desired graduation. Always make sure the pawl is seated in thenotch.To increase weight values, move the poise to the left and line it up the with thedesired graduation. Always make sure the pawl is seated in the notch.Illustrated is a setting of 3.7 grains.Do not attempt to set the poise at any position except firmly seated in a notch.HOW TO ZERO BALANCE THE SCALEPlace both poises at zero. If the scale has been placed on a reasonably levelIllustrated is a setting of 160 grains.Do not attempt to set the large poise at any position except firmly seated in anotch. Always use the small poise for weight values between the 5 grainincrements of the large poise.HOW TO USE THE SMALL POISE (5 GRAIN)The principle of the small poise is the same as for the large poise. This poiserun is from 0 to 5 grains. The equally spaced notches divide this distance into 50equal parts so that each subdivision is equivalent to 1/10th (.1) grain of weight.To zero the small poise, move it to the position where the pawl, which is the topedge of the rectangular slot through the poise, engages the notch directly abovethe zero graduation. The long, vertical edge of the poise is the indicator and willline up with the zero graduation.surface, the beam pointer will come to rest fairly close to the zero graduation onthe dial plate. Raise or lower the left end of the base by means of the leveling footto line them up.The scale should be zero balanced before use and checked periodically duringuse for maximum accuracy and protection against error.MAGNETIC DAMPINGYour ʺ5-0-2ʺ Reloading Scale is equipped with magnetic damping which causesthe beam to come to rest quickly without affecting sensitivity or accuracy. Itoperates on the principle of a permanent magnetic field resisting the motion of anon-magnetic, copper damper vane attached to the beam.The damping magnets are positioned inside the base on both sides of the slotthat the damper vane travels in.The only maintenance required is to keep this slot free of magnetic particles whichcould interfere with free movement of the damper vane.The magnetic damping is effective at all loads and will speed up weighing.HOW TO WEIGHTo weigh an unknown, such as the throw of charge from a powder measure,place it in the scale pan. Move the large poise to the first notch which causes thebeam pointer to drop below zero and then move it back one notch. Then movethe small poise to the notch which brings the beam pointer closest to zero. Theweight of the unknown is the sum of the two poise readings.Illustrated is a total weight of 163.7 grains.The scale can also be used to weigh out predetermined powder charges, eitheralone or in combination with a powder measure set to throw a light charge.In either case the desired final weight of the charge is preset on the poises. Thiswill cause the beam pointer to fall below the zero graduation. Add powder to thepan until the beam balances.When making repeated weighings in this manner, avoid weighing errors bymaking sure that the poises remain in their correct positions and are notaccidentally moved.HOW TO CARE FOR YOUR SCALEKeep the scale clean at all times and be particularly careful to prevent theaccumulation of dirt on the pivots and bearings. Never apply oil or any lubricantto the pivots or bearings; this will lower the accuracy of the scale.LOADING DATA Use only laboratory tested reloading data. OBSERVE ALL WARNINGS ABOUT THE USE OF MAXIMUM LISTED LOADS.PRIMERS AND POWDER Store primers and powder beyond the reach of children and away fromheat, dampness, open flames and electrical equipment. DO NOT use primers of unknown identity. To destroy unwantedprimers, soak in oil for a few days and then bury. Keep primers in original factory container until ready to use. Storeunused primers in the same factory packaging for safety and topreserve their identity. DO NOT store primers in bulk. The blast of just a few hundred primersis sufficient to cause serious injury to anyone nearby. DO NOT force primers. Use care in handling primers. DO NOT use any powder unless its identity is positively known.Discard all mixed powders and those of uncertain or unknown identity.If you use a powder measure, replace the lids on both the powderhopper and powder can after the powder hopper has been filled. Before charging cases, settle the powder in the powder hopper. Throwand check the weight of at least ten charges. This will assure you thatthe correct powder charge is being thrown. After a reloading session ends, pour the remaining powder back in itsoriginal factory container. This will preserve the identity and shelf life ofthe powder. DO NOT smoke while handling powder or primers.SAFETYReloading is an enjoyable and rewarding hobby that is easily conducted withsafety. But carelessness or negligence can make reloading hazardous. Thisproduct has been designed from beginning with the user’s safety in mind.As with any reloading operation, some safety rules must be followed. Byobserving these few rules, the chance of a hazardous occurrence causingdamage or injury becomes extremely remote.GENERAL Use the reloading equipment as the manufacturer recommends.Study the instructions carefully and become thoroughly familiar with theoperation of the product. Don’t take short cuts. Observe ʺgood housekeepingʺ in the reloading area. Keep tools andcompanents neat, clean and orderly. Promptly and completely clean upprimer and powder spills. Reload only when you can give your undivided attention. Do not reloadwhen fatigued or ill. Develop a reloading routine to avoid mistakes.Avoid haste - load at a leisurely pace. Always wear adequate eye protection. You assume unnecessary riskwhen reloading without wearing safety glasses. Don’t take short cuts.RECORD KEEPING Keep complete records of reloads. Apply a descriptive label to eachbox.Since OHAUS has no control over the choice of components, the manner in whichthey are assembled, the use of this product, or the guns in which the resultingammunition may be used, no responsibility, either expressed or implied, isassumed for the use of ammunition reloaded with this product.IMPORTANTPlease read these instructions very carefully in order to obtain optimum results.Save these instructions for future reference.Ohaus Corporation7 Campus Drive, Suite 310Parsippany, NJ 07054 USAFor customer service call Toll Free1-800-672-7722

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