AFS Foundry Sand Testing Equipment Operating Instructions Manual

RIDSDALE MOISTBALANCE (cont’d)IVTEST PROCEDURE(a)(b)(c)(d)(e)(f)(g)(h)Place an empty Moisture Teller pan in position on the pan cradle of the balance.Slacken the knurled screw on the back of the rear sliding weight and slide it along thebeam until near equilibrium is obtained. Secure in position by re-tightening theknurled screw.Move the knurled nut on the threaded portion on the end of the beam and move untilthe point on the beam comes to rest on the index mark.Move the front sliding weight to the 50 g notch on the beam.Load the pan with material to be tested until equilibrium is obtained and the pointercomes to rest on the index mark.Transfer the pan to the Moisture Teller and remove the moisture from the material.Allow the pan to cool on Moisture Teller cooling base.Replace the pan containing the dried material in position on the balance and rotatethe dial until equilibrium is again obtained and the pointer comes to rest on the indexmark.Read the percentage moisture direct from the dial. The full range of the dial from 0 to20% is equivalent to a loss in weight of 10 g. Hence if a 100 g sample is used thedial reading must be divided by 2, or if a 25 g sample is used the dial reading mustbe multiplied by 2.VMAINTENANCENormal cleanliness is all that is required to maintain the balance in good operating condition.VIRECOMMENDED SPARESPart NoDescription01 Compensating Screw02 Cradle Assembly.34