Watson-Marlow 530 Bp Installation, Operating And Maintenance Manual page 55

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.
To define a four digit Master PIN, use the ∧ /∨ keys to select each digit from 0-9. Once you have the
required digit press the NEXT DIGIT key. After selecting the fourth digit press ENTER.
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