Connect test probe L2 to the supposed phase 3 and test
probe L1 to the supposed phase 2. If the R LED
illuminates the phases are in the correct sequence 2 to 3.
Connect test probe L2 to the supposed phase 1 and the
test probe L1 to the supposed phase 3. If the R LED
illuminates the phases are in the correct sequence 3 to 1.
During phase rotation test touch the contact electrode.
If the L LED illuminates then the phase sequence is anti
clockwise.
8) Maintenance
Do not attempt to repair this unit . There are no user
serviceable items in this unit. Never attempt to open the
casing apart from the battery cover.
Do not use the instrument if there is any physical damage
to the case or test leads.
The outside of the unit can be cleaned with a soft damp cloth
only. Do not use abrasive or chemical cleaning agents.
Changing batteries
Turn the battery cover by 90 degrees anti clockwise.
Remove the cover and take out spent batteries. Replace with
2 off 1.5 V AAA (LR03) batteries, checking the correct polarity.
Replace the battery cover and turn by 90
0
clockwise.
Spent batteries should be disposed of responsibly and with
compliance with current recycling and disposal regulations.
Calibration
The recommended calibration interval for the DL6780/DL6790
is 12 months.
DiLog Instructions Inner8pp 6/3/07 11:25 Page
