The measurer has to write down the values on the record sheet and stamp it with their personal seal please.
The measurer has to record down the values on the record sheet and stamp it with their personal seal please.
「測定者」→「Measurer」
「記入する」→「To record」、「To write down」
「測定値」→「Values」
海外では「ハンコ」を使わないので、ここで「ハンコ」という単語を説明しなければならないので、「自分のハンコでハンコする」→「To stamp with one's personal seal」
まとめて言いますと、
「The measurer has to write down the values on the record sheet and stamp it with their personal seal please.」か、
「The measurer has to record down the values on the record sheet and stamp it with their personal seal please.」と表現します。
どちらでも使えます。