SMC Networks PF3W7 Series, Operation Manual

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-61-
No.PF
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-OMM0005-N
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Key-lock function
This function is to prevent errors occurring due to such things as set values being accidentally changed.
While the keys are locked, it is possible to view the set values on the sub screen.
<Operation with keys locked>
Simple check of set values
If the button is pressed, [LoC] is displayed on the sub screen for approximately 1 second.
When the button is released with [LoC] still displayed, the sub screen will scroll through the set
values.
After the scrolling of set values is finished, [LoC] is displayed for approx. 1 second, the product then
returns to measurement mode
Pressing the or buttons will change the sub screen display.
The peak and bottom hold values and accumulated value can be viewed, but not cleared.
<Operation
– Without security code input>
1. Press and hold the button for 5 seconds or longer in measurement mode.
The current setting [LoC] or [UnL] will be displayed on the sub screen.
Sub screen
2. Press either the or button to select locking/unlocking the keys.
3. Press the
button to confirm. Return to the measurement mode.
To release key-lock, repeat the above operation.

: The keys cannot be locked or released while the sub screen is displayed the set values under this function. Perform the operation
in measurement mode.
<Operation
– With security code>
The procedure to lock the keys is the same as that for "without security code".

Unlocking
1. Press and hold the button for 5 seconds or longer in measurement mode.
[LoC] will be displayed on the sub screen.
Sub screen
2. Press either the or button to select unlocking the keys [UnLoC].
3. After the
button is pressed, the security code must be input.