SMC Networks PFMC7501 Operation Manual page 61

<Operation-With security code input->
Make [F81] Security code valid in advance.
Locking
1. Press and hold the
[UNLoC] will be displayed on the sub display.
2. Press the or
3. Press button to lock the keys and return to measurement mode.
Unlocking
1. Press and hold the
[LoC] will be displayed on the sub display.
2. Press the or
3. After the button is pressed, the security code must be entered.
Enter of security code
The first digit will start flashing. Press the
Press the button to set, and the next digit to the right will start flashing.
If the button is pressed at the last digit, the first digit will start flashing.
: The default security code is [000].
4. After the setting is completed, press and hold the
If the security code entered is correct, [UNLoC] will be displayed.
Press any of the ,
If the security code entered is incorrect, [FAL] will be displayed and the security code must be entered again.
If an incorrect security code is entered 3 times, [LoC] will be displayed and return to measurement mode.
5. Press any of the ,
: If a key is not pressed for 30 seconds while entering the security code, return to measurement mode.
button for 5 seconds or longer in measurement mode.
button to select keys lock [LoC].
button for 5 seconds or longer in measurement mode.
button to select keys unlock [UNLoC].
or buttons to release the key lock and return to measurement mode.
or buttons to release the key lock and return to measurement mode.
or button to select a value.
button for 1 second or longer.
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No.PF※※-OMS0002-B