Battery Replacement - Lutron Electronics ARW 4220 User Manual

User's manual
6-2 Call data
1– Turn on the meter. Press the " Hold Button " ( 3-3, Fig. 1 ) momentarily, LCD shows " HOLD ".
Following, press the " REC Button " ( 3-4, Fig. 1 ) momentarily, display shows:
Example:
28
The total data point that are saved into the memory.
ttL
2– Uses " V Button " ( 3-2, Fig. 1 ) or " W Button " ( 3-4, Fig. 1 ) to call the data that already saved
into the memory.
Note :
˜ During call the data, the unit display will be flashed.
Example:
1.5
14
m/s
flashing
˜ Press " Hold Button " ( 3-3. Fig. 1 ) will exit the data call function.
6-3 Delete data ( Empty the memory )
1– Turn off the meter first.
2– Press the " REC Button " ( 3-4, Fig. 1 ) continuously and not release, at the same time press the
" Power Button " ( 3-2, Fig. 1 ) momentarily, the display will show following screen, then release
both fingers from the buttons.
n
CLr
3– Press " W Button " momentarily, display shows :
y
CLr
4– Press " Button " ( 3-3. Fig. 1 ) momentarily, the display shows :
nuLL
CLr
Now all the saved data is deleted, memory will empty.

7. BATTERY REPLACEMENT

˜ Replace the batteries when the left corner of the LCD displays the low battery icon "
4 fresh 1.5 V ( UM4, AAA ) batteries.
˜ To change the batteries, open ( rotate clockwise direction ) the " Battery Cover " ( 3-6, Fig. 1 ).
˜ Make sure the " Battery cover " (3-6, Fig 1) is secured after changing the batteries.
User's manual
15
", using