AFS Foundry Sand Testing Equipment Operating Instructions Manual

RIDSDALE-DIETERT MOULD PERMEABILITY ACCESSORY (cont’d)IIITEST PROCEDURE (cont’d)(B)Electric Permmeter(a)(b)(c)(d)Fit the bell-shaped adaptor to the Permmeter in the same manner as forcarrying out a standard permeability test.With suitable orifice in position start the flow of air by switching on the blowermotor.Adjust zero.Press the contact head firmly against the mould being tested and read thepermeability number direct on the appropriate scale according to the orificeused.IVMAINTENANCESee that the rubber tubing is in good condition and the contact head is not damaged.VIRECOMMENDED SPARESPart NoDescription2207 PVC Tube2208 Contact Head2209 Washer complete with brass insert – Contact head.73