Wireless AC/DC Current Clamp 
  Before Calibration Adjustment 
9 
Before Calibration Adjustment 
Before the Product calibration can be adjusted, you must go through the 
maintenance mode menu and enter your password. 
Maintenance Mode 
The Product maintenance mode can be used to set different parameters on the 
Product that include auto power off, backlight adjustment, and calibration. To use 
the maintenance mode: 
1.  With the Product OFF, push and hold . 
2. Push . Keep  pushed until all the display segments are shown. 
3. Release  and . 
The Product is now in maintenance mode.  
Password Entry 
To go to the calibration mode, push  until CAL is shown. You will need to 
enter a password to access calibration mode. 
To enter the password: 
1. Push  and the CAL count is shown. For example n002. 
2. Push  to show “????”. The first “?” flashes.  
3. Push  to change the flashing “?” to the first digit of your password 
(default: 1234). 
4. Push  to confirm your choice. The subsequent “?” flashes. 
5.  Do steps 3 and 4 again to enter the subsequent digits of the four-number 
password. 
6.  When all of the correct digits are entered, push  to confirm the input.  
If the correct password is entered, “C-01” is shown. If the incorrect password 
is entered, “????” is shown and the password must be correctly entered to 
go to the first calibration point, “C-01”.  
Change the Password 
Note 
If you change the password and then lose it, see the “Restore the 
Default Password” section. 
To change the password: 
1.  Do steps 1 through 5 in the “Password Entry” section.  
2. Before you push  to confirm your final input (step 6), push  to show “----” 
on the display. The first “-” flashes.  
3. Push  to change the first “-” to the first digit of your new password. 
4. Push  to confirm your choice. The next “-” flashes. 
5.  Repeat steps 3 and 4 to enter the subsequent digits of the new four-number 
password. 
6.  When the correct digits are entered, push  to confirm the input and change 
the password.  If the Product has been calibrated, it will go to normal 
measurement mode, or it will show “donE”.