12
13
(8) MEM full stored data symbol, when the stored data has reached 99 groups
and can't store data anymore, the symbol MEM shall flicker.
Of stored data.
(9) MR Data inquiry symbol, it shall appear in inquiring data and indicate the No.
loop being measured, the symbol shall flicker and the meter sound sporadic
beep--beep--beep-- , the measurement accuracy of the time can't be
guaranteed.
(10) NOISE Symbol, when there are quite big interference current to the earth
3 Display Demonstration
(1) as clamp jaw is open, it can't measure.
(It might be caused by the dirtiness of
the clamp jaw, please clean the clamp
jaw surface.)
power-on error indication Er(Error)
(It might be caused by the dirtiness
of the clamp jaw , please clean the
clamp jaw surface.)
resistance of the loop being
measured <0.01
resistance of the loop being
measured is 5.1
UT276A/278A OPERATING MANUALUT276A/278A OPERATING MANUAL