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16 pin-secure process protection – Watson-Marlow 520Du User Manual

Page 29

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Watson-Marlow 520Du User Manual

29

16 PIN-secure process protection

The 520DuN and 520Du feature PIN-secure process protection. This allows the
pump to be configured to suit the application, and for the setup to be protected
by two levels of PIN code. See 18.19 Security code setup.

* When the keypad is locked, MemoDose is available via its access shortcut:
press STOP twice; it is not available through the menu structure.

The main code allows changes to Calibrate, Setup, Direction and Keypad
lock
.

The secondary (User) code permits Calibrate, Direction change and Keypad
lock
but bars Setup change.

If either code is used in conjunction with Keypad lock, all keys are disabled
except STOP and START.

To activate and set a security code, see 18.19 Security code setup.

If the main code is lost or forgotten: The Setup main security code can be
bypassed by entering a special key sequence; all codes can then be cancelled
and reset. Contact Watson-Marlow or your distributor for details.

Menu option
or keypress

With Main

code set

With User

code set

Code set and

keypad locked

Menu

Available

Available

Not available

Calibrate

Available

Available

Not available

Accept

Available

Available

Not available

Change

Main PIN

needed

Main PIN or User

PIN needed

Not available

Setup

Main PIN

needed

Main PIN needed;

User PIN invalid

Not available

MemoDose

Available

Available

Available*

Pin out details

Available

Available

Not available

Max

Available

Available

Not available

Dir

Main PIN

needed

Main PIN or User

PIN needed

Not available

Auto / Man

Available

Available

Not available

Up

Available

Available

Not available

Down

Available

Available

Not available

Max and Up

Available

Available

Not available

Max and Down

Available

Available

Not available

Start

Available

Available

Available

Stop

Available

Available

Available

Enter

Available

Available

Not available

Keypad lock

Main PIN

needed

Main PIN or

User PIN needed

Main PIN or

User PIN needed

Auto-restart

Available

Available

Available

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