Kusam-meco KM 1320, Руководство по эксплуатации

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The distance from measured earthing body to current
electrode C(H), should at least five times longer than
the embedded depth of measured earthing body, or
the embedded electrode depth (d).
When measuring the total earth resistance of complex
earthing system, d is the length of the biggest
diagonal line of this earthing system.
Testing wires can’t be winded together, or may affect
the measuring accuracy.
H.i65
07 i
EARTH- TESTER
0
10
20
30
40
C
MEM
AL CLR
SET START
FUNCTION
OFF
EARTH
R
EARTH
EARTH
VOLTAGE
OFF
C (H)
E
P
ES
(S)
AC 600V Max
Rs232
E
ES
P
(S)
Green
Yellow
.
Measured earthing body
Red
C
(H)
Black
h
d
>5d
For multi independent earthing system or larger earth net, 50m or
larger testing wire is optional, as shown below :
H.i65 i00
EARTH- TESTER
0
10
20
30
40
C
MEM
AL CLR
SET START
FUNCTION
OFF
EARTH
R
EARTH
EARTH
VOLTAGE
OFF
C (H)
E
P
ES
(S) AC 600V Max
Rs232
.
ES
Green
Black
>5d
C
(H)
P
(S)
Red
Yellow
E
rC rP
r1
r2
r3 r4 r5 r6
d
R = r1//r2//r3//r4//r5//r6//....//rn ( r1....rn are all independent
earthing points)
R –– The reading value on meter, the total earth resistance of the
earthing system.
r1...rn –– All are independent earthing points, each points have
no connection together under the ground.
rC –– The earth resistance rC of auxiliary current electrode C
(H)
.
rP –– The earth resistance rP of auxiliary voltage electrode P
(s)
.
n –– Number of independent earthing point, more points, smaller
the R value.
After finishing wires connection, firstly rotate rotary
switch to “
R
EARTH
”, press “ ” button to start testing. During
testing, display countdown and process bar indicator. Stable earth
resistance value is shown when finish testing.
FUNCTION
START
Press “ ” button, the earth resistance rC of auxiliary current
electrode C
(H)
and earth resistance rP of auxiliary voltage electrode
P
(S)
will be displayed, and then automatically return display of
measured earth resistance R .
SET
As shown below, the measured earth resistance is 2.05 ,
already stored 8 sets of data. The earth resistance
rC of auxiliary
current electrode C
(H)
is 0.36K , the earth resistance rP of
auxiliary voltage electrode P
(S)
is 0.27K
W
.
W
W
H008
205
10
20
30
40
0
.
.
036
.
c
:
k
027
.
p
:
k