21
®
®
22
9. Backlight Control :
After startup, press “ ” button to turn on or off backlight. The
backlight function is suitable to dark spot, power consumption of
backlight is about 25mA. It will default backlight turn-off for each
startup.
¤
10. Alarm Settings :
After startup, rotate rotary switch to select function,
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.
FUNCTION
AL
AL
AI
AI
11. Data Lock / Storage :
In test mode, press “ ” button for a brief time to lock
current displayed data, showing “ ”, “ ” icon and
automatically store with serial numbers. If storage is full, the tester
will display “ ” icon, and then press button to remove lock.
MEM
HOLD
MEM
FULL
As shown in the left figure below:
The lock measurement data
of soil resistivity is 53.38
Ù
m, as the 28th group of data storage.
––––
––––
HOLD
READ
H028
5338
10
20
30
40
0
.
.
m
HOLD
MEM
12. Data Reading / Deletion :
In test mode, press “ ” button for a longer time (over 3
seconds) to enter data reading, press “ ” or “ ” button to select
reading data group number by step value 1, press “ ” or “ ”
button constantly to select reading data group number by step
value 10. When the current data is earth resistance or soil
resistivity, press “ ” button to read data value of rC, rP and a,
then press “ ” button to exit from reading.
MEM
SET
MEM
On reading if there is no storage data, LCD will display “ ”,
see the above right figure.
- - - -
Under data reading status, press “ ” button to enter data
deletion, press “ ” or “ ” to select “ ” or “ ”, selecting
“ ” and then pressing “ ” button for not deleting and return
data reading status, selecting “ ” and then pressing “ ”
button for deleting stored data and it will show as above right figure
after deletion.
CLR
no
yES
no
yES
CLR
CLR
Notice :
Operating data deletion will delete all the stored data
one-time, and unable to be restored. Please careful operation.
13. Data Upload :
The stored data can be uploaded to computer. Make good
connection of computer with RS232 communication wire of the
tester, switch on the tester and run monitoring software, and if the
software displays that interface is open and the connection is
successful, then it can read the stored historical data, upload to
company and preserve.
Monitoring software has the function of online real-time
monitoring and historical inquiry, dynamic display, with alarm value
settings and alarm indicator, and the function of historical data
access, reading, preserve, print and other functions.
