![Watson Marlow Pumps 530 Series Operating Manual Download Page 43](http://html2.mh-extra.com/html/watson-marlow-pumps/530-series/530-series_operating-manual_3763085043.webp)
The padlock icon will appear on the operating mode home screen to show that keypad lock is activated.
Note that the STOP key will always work whether the keypad is locked or not.
PIN protection
Using the
∧
/
∨
keys select
PIN protection
from the SECURITY SETTINGS menu and press
ENABLE/DISABLE
to switch on/off the PIN protection. If PIN protection has been enabled, a Master level
PIN will be required to disable PIN lock.
Setting Master PIN
Setting the Master PIN protects all functionality. The Master is able to selectively enable functionality for two
additional operators. These are defined as User 1 and User 2. They will be able to access this functionality by
entering a PIN code assigned to them by the Master user. To set the Master PIN, scroll to Master level and
press
ENABLE
.
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