page 17
Once the desired settings for the Tornado have been
established, it is possible to password protect the menu
pages, so that no further changes may be made without
authorised access.
To access the PASSWORD function, press and hold the
MENU
key until page 1 of the main-menu appears.
Using the
UP
and
DOWN
keys, move the arrow cursor to
PASSWORD, and press
ENTER
.
The display shows MENU PASSWORD:
OFF
Enables access to menu pages.
ON
Requires a password be entered to access the
menu pages.
Use the
UP
and
DOWN
keys to move the arrow cursor
against the desired selection and press
ENTER
, then press
the
ESC
key twice to return to the main display.
If the PASSWORD function has been enabled, and the
MENU
key is held down to access the menu pages from
the main display, a screen showing 0000 will appear, and
the menu password ‘6284’ must be entered to proceed.
Use the
UP
and
DOWN
keys to select the first number,
followed by
ENTER
to move on to the next number, and so
on. If the password is entered incorrectly, the display will
return to the main display.
This feature is used to ‘freeze’ the main-display when an
external signal is received. The Tornado can be configured
to freeze when going either low 1-0, falling edge (LO) or
high 0-1, rising edge (HI). This is particularly useful for
applications where an event occurs (e.g. rotary switch
testing). To clear the display press the
RESET
key.
To configure this function, press and hold the
MENU
key
until main menu page 1 appears. Press the
DOWN
key to
move the arrow cursor to FREEZE and press the
ENTER
key.
Select the desired LO or HI function using
UP
or
DOWN
arrow keys and press
ENTER
to select. When set, the
sub-menu will display FREEZE ON. To disable the FREEZE
function, align the cursor with FREEZE ON and press the
ENTER
key. FREEZE OFF will now be displayed. Press
ESC
to return to the main menu page 1.
PASSWORD
PASSWORD sub-menu 1
FREEZE
Use pins 7 & 10 for this
function – page 48 for details.
When unconnected, pin 7 is pulled
high internally.
FREEZE sub-menu 1
