S(N): Replace Cap - ABB ADS420 Manual

A D S 4 2 0 | D I S S O LV E D OX YG E N S E N S O R | O I/A D S 4 2 0 - E N R E V. B
17

S(n): Replace Cap

Diagnostic message
S(n): Replace Cap
Cause
The SmartCap in the DO sensor reaches its expiry date within 4
weeks. After its expiry date, the SmartCap may continue to
operate, but its accuracy degrades and cannot be guaranteed
to meet specification.
Recovery action
1 Replace the SmartCap.