Caleffi 6000 User Manual

Page 41

PIN code

Menu navigation can be prevented by enabling the keypad lock function. The keypad is then unlocked by entering a PIN code.
If the lock function is enabled, the keypad is locked automatically after a timeout of 10 minutes starting from the last time a button was
pressed.
When the keypad lock function is active, a padlock symbol appears on the working screen (on the right):

Also, if the lock function is active and a button is pressed while the working screen is displayed, the PIN code input screen appears:

The code is entered by selecting the first digit using the “UP” and “DOWN” buttons, then confirming by pressing OK. The second digit is entered in the

same way and so on.

When the last digit is confirmed, if the code is correct, the user can access the menus; if the code is incorrect, the PIN entry screen appears again.

If the timeout elapses, the display shows the working screen again.

If the PIN code is lost or misplaced, the lock function can be overridden (the PIN code is forced to 0000) by pressing a button on the back of
the panel (for 5”), or by sending a special command through the RS485 interface.

Entering programs and settings

Appliance operation is based on an internal clock with calendar and automatic time adjustment.

By navigating through the appropriate menu items and using the buttons on the front panel (“MENU”, “UP”

, “DOWN”

and

“OK”),

the

user can configure the appliance, set the various parameters and display the temperature log.

Functions of the configuration buttons

Description

Display

Button function

Effect

Menu item - arrows beside the row

DOWN

Moves the cursor to another row

+OK

Opens the related submenu

Go back to previous level

Other rows available

DOWN

Displays other rows in the menu

-arrows in the screen margin

Parameter selection

DOWN

Increases or decreases the parameter value

-cursor blinking

+OK

Confirms the setting - cursor disappears and

the value becomes effective

Return to previous level without making changes

Whatever status the appliance is in (except Low Power), it is always possible to navigate around the various menus to read the various settings

and view the stored log data.

However, for safety reasons, the settings data can be modified only when the appliance is in “Adjustment” mode.
In particular, parameters cannot be modified while the appliance is in “disinfection”, “flux” or “thermal shock” mode and when the appliance is

in the “inactive with alarm” status.

The various options are made available, depending on whether the return probe has been enabled.

To set programs 1B or 2, the return probe must be set as Present.

To be able to remove the return probe (i.e. set it as Present or Absent), program 0 or 1A must be set first.

Pre-equipped for remote control

The regulator can also be controlled from a remote computer, since it is equipped with an RS485 serial interface, which can be accessed by

hard-wired terminals and through the connector on the front panel.

Since the interface is the multipoint bus type, it is necessary for each appliance, connected on the bus, to be identified by an appropriate

address in order to avoid identification conflicts.

For a detailed description of the operations and commands that are possible on a remote device using this interface, please refer to the relevant

documentation.

tuesday 13/02/2006

adjustment

running

keyboard lock

0000

enable

keyboard lock

2600

enable