Transformer Oil (Insulating) CORROSIVE SULPHUR TEST OVEN As per DIN 51353, IEC62535 Triple walled construction. Cross flow air circulation. Microprocessor based PID temperature controller with pre-setting digital timer. Safety thermostat. Temperature upto 200°C, ± 1°C. Working size : 45W x 45D x 45H CMS. Power supply : 230 ± 10% Volt AC, 1 Phase, 50 Hz.