[Cause]
When both the 1-step and 2-step measurement methods are used, new electrode tips have been installed while using the 1-step measurement method.
[Countermeasure]
When replacing electrode tips, measure using the 2-step method.
When both the 1-step and 2-step measurement methods are used, new electrode tips have been installed while using the 1-step measurement method.
When replacing electrode tips, measure using the 2-step method.