... control field, such as metallurgy, paper making, petrochemical, pha WT4300E series EMF is widely applicable to industrialprocess control field, such as ... output: active/passive, frequency and pulse width adjustableTest and diagnosis: self-diagnosis, failure record, current outputtest, control input/output test, ... external memorizer, writing tag No. etc. Electromagnetic Flowmeter(WT4300E Series EMF)