Besantek BST-MT707, Инструкция по эксплуатации

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8. MAINTENANCE
a) Battery replacement :
When the low battery warning symbol " "
appears, change new batteries as follows :
(1) Disconnect the test leads from the multimeter
and turn off the power.
(2) Unscrew the battery cover and replace with
new batteries(1.5V AAA×2).
(3) Re-install the battery cover.
b) Fuse replacement :
(1) Disconnect the test leads from the multimeter
and turn off the power.
(2) Unscrew the battery cover and replace with
new fuse(0.5A/600V, 5×20mm).
(3) Re-install the battery cover.
Rotating Right L1 L2 L3
(clockwise)
Phase Rotation Indication
Rotating Left L1 L3 L2
(counter-clockwise)