-13-
Note
Simple method for measurement of earth ground resistance also needs
to confirm that voltage value to ground must be lower than 10V. If the
voltage value is over 10V, the measurement value of earth ground
resistance may cause error and at that time, it shall firstly cut off power
on measured ground equipment and make resistance measurement after
the ground voltage is decreased.
8
．
Backlight Control
After startup, press
button to turn on or off backlight. The backlight
function is suitable to dark spot. It will default backlight turn-off for each
startup.
9
．
Alarm Settings
After startup, press
button for a brief time to open or shut off alarm
function, press
button for a long time (about 3 seconds) to enter alarm
critical value settings, press
or
to change current digital, press
button to move cursor and then press
button to store and exit. When
measurement value is larger than alarm critical settings value and it has
opened alarm function, the Tester will flash and display
icon and give out
“toot-toot-toot--”alarming sound.
10
．
Data Lock/Storage
Startup or after measurement, press
button to lock current
displayed data, showing
,
icon and automatically store with serial
numbers. If storage is full, the Tester will display
icon. Each group of
Grounded object
being measured
Metal water pipe
building lightning
protection grounding
as auxiliary grounding pole
Green
Red
Summary of Contents for HZRC-3000
Page 2: ......
