Methyl violet tester

A methyl violet tester comprises a thermostatic oven body and a control device, a heat insulating material layer around and at a bottom of the thermostatic oven body, a back plate and a casing on a core of the thermostatic oven body, which is a cylindrical form. The thermostatic oven body is a circular aluminous metal-bath structure. The control device is controlled by computer program. A platinum temperature sensitive resister and a data memory can be checked at first after the machine is started up by setting the start-up self check program. The alarm can be sent out and the operation can be stopped once the failure is found and the failure code can be displayed; the functions of timing preheating, test process showing and preset heating can be realized conveniently through programming. The utility model has the advantages of simple structure, high automaticity, convenient operation and maintenance, plus and minus 0.1 degree testing and controlling temperature precision, exact and reliable testing result, light weight and convenient carrying.