Instruction manual

38
Locking the Keypad
The display allows the keypad to be locked so the current settings can't
be accidentally changed by depressing the ZERO, PLUS or MINUS
keys. To lock the keypad proceed as follows:
1. While depressing and holding the ON/OFF key, momentarily press
the MODE key.
2. Release the MODE key and then the ON/OFF key. The display
should now indicate “LOCK” in the upper left corner.
3. Use the same procedure to UNLOCK the keypad.
NOTE: Locking the keypad may cause the PLUS and MINUS keys to
function differently. (See “Pattern Adjustment”.) The zero key
will not function when the display is locked.
Pattern Adjustment
Whenever the readhead is disconnected from its power source, or the
display is turned off, and the readhead is moved over a pattern joint, the
displayed reading may be one or more patterns (+ 430mm) in error when
power is restored. This may also occur if the readhead is moved too
quickly in Model 150/250 systems.
To correct the error, place the digital display in ABS LOCK mode and
use the PLUS or MINUS keys to increment or decrement the reading
until the proper reading is displayed. Using this procedure will result in
NO LOSS OF ACCURACY to the system.
Hold
The current state of the display is "frozen" when the HOLD button is
pressed, and remains "frozen" until the button is pressed again. When in
hold, the display will display HOLD in the upper left corner, and no
movements or keystrokes will be recognized. When HOLD is released,
all pending keystrokes will be recognized. If the power is cycled, the
HOLD will be cleared.
Note: The ProScale display will auto-detect an SPC device connected
to the display and reconfigure the HOLD button to Data Send.