03
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®
04
I. INTRODUCTION :
-3-
KM 1320 Earth Resistance Soil Resistivity
Tester
is
specially designed and manufactured for measuring
earth resistance, soil resistivity, earth voltage, AC voltage.
Adopting the latest digital and micro-processing technology,
precise 4-pole, 3-pole and simple 2-pole method for earth
resistance measurement, importing FFT and AFC technology, with
a unique function of anti-interference capability and the ability to
adapt to the environment, consistency of repeat testing, to ensure
high precision, high stability and reliability for prolonged measure,
which is widely used in electric power, telecommunications,
meteorology, oil field, construction, lightning protection, industrial
electrical equipment and other earth resistance, soil resistivity,
earth voltage, AC voltage measurement.
®
®
KM 1320 Earth Resistance Soil Resistivity
Tester
is
composed of host machine, monitoring software, testing
wires, auxiliary ground pillars, communication wires and others.
The large LCD display of host machine is with blue backlight and
bar graph indicating that can be seen clearly. At the same time it
can store 300 sets of data, fulfilling historical inquiry and online
real-time monitoring through monitoring software, dynamic display,
alarm indicator, and with the functions like historical data access,
reading, preservation, report forms, printing and so on.
®
®
KM 1320 Earth Resistance Soil Resistivity
Tester
also named : Precise Earth Resistance Tester, 4-pole Earth
Resistance Tester, 2/3/4-pole Earth Resistance Tester, Soil
Resistivity Tester.
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®
II. TECHNICAL SPECIFICATIONS :
1. Base Conditions and Working Conditions :
Influence Quantity
Base
Condition
Working
Condition
Remark
Ambient Temp
Ambient Humidity
Working Voltage
Auxiliary Earth Resistance
Interference Voltage
Interference Current
Electrode Distance when
measuring R
Electrode Distance when
measuring P
23ºC ± 1ºC
40%-60%
9V ± 0.1V
<100
W
no
no
a>5d
a>20h
-10ºC-40ºC
<80%
9V ± 1.5V
<30
W
<20V
<2A
a>5d
a>20h
----
----
rC, rP
----
----
----
----
2. GENERAL SPECIFICATION :
Function
Power Supply
Measurement Range
Measuring Mode
Measuring Method
Test Frequency
Short-cicuit Test Current
Open-circuit Test Current
Test Voltage Wave
Electrode Distance Range
Measurement of 2/3/4-pole earth resistance, soil
resistivity, earth voltage, AC voltage
DC 9V (Zi-Mn dry battery R14S 1.5V 6 PCS,
continuous standby for 300 hours)
Earth Resistance : 0.00
W
-30.00k
W
Soil Resistivity : 0.00
W
m-9000k
W
m
Precise 4-pole measurement, 3-pole measurement,
simple 2-pole measurement
Earth Resistance : rated current change-pole method,
measurement current 20mA Max
Soil Resistivity : 4-pole measurement (Wenner method)
Earth Voltage : average rectification (between P(s)-ES)
128Hz/ 111Hz/ 105Hz/ 94Hz (AFC)
AC 20mA max
AC 40V max
Sine wave
Can be set 1m-100m
