Guangzhou Zhengneng Electronic Technology Co., Ltd.

Technical Specifications
． Range and accuracy error

r
rMeasurement function

rMeasurement range

rAccuracy

rResolution


rGround resistance<>(R)
&;~<>.&;
&;<>% r&;(Note)
&;
&;~<>.&;
&;<>%r&;
&;
&;~<>& ;
&;<>%r&;
&;
&;~<>.&;
&;<>%r&;
&;


rSoil resistivity<>(&r;)
&;<>~.&;

&r;<>
&;( Note)
&;<>
&;<>~.&;
&;<>
&;<>~&;
&;<>< br/> &;<>~.&;
&;<>
&;<>~.&;
&;<>
&;<>~&;
&;<>

rGround voltage
~<>
&;<>%r&;

< /b>
Note: <>. Base condition: Accuracy at R&;&;.
Working conditions<>:
&;+R＜&;;
&;+R＜&;
.Depends on the measurement accuracy of<>R&;< br/>.~；
． General specifications

r
r Function<>
> Two, three and four wires measure ground resistance and soil resistivity;
Ground voltage Measure<>

rAmbient temperature and humidity
> ℃&;<>℃%r or less

rPower supply<>Power supply
(<>R )Alkaline battery section

rInterference voltage
> ＜<>(should be avoided)

rInterference current
> ＜<>(should be avoided )

Electrode spacing when measuring<>R
> ＞<>

Electrode spacing when measuring&r;
> ＞<>

rAuxiliary ground resistance value
> Reference conditions<<>&;Working conditions<&;


rMeasurement<>range
Grounding Resistance: <>.&;～.&;
Soil resistivity: <>.&;～&;
Ground voltage: <>.～

rMeasurement method< br/> > Precision<> Line, line method measurement, simple line measurement ground resistance

rMeasurement method
> Ground resistance: rated current pole change method to measure current<>
Soil resistivity: Four-pole method<>
Ground voltage: Average rectification<>(-between interfaces)

rTest frequency
>

rShort circuit test current
>

rOpen circuit test voltage
>

rTest voltage waveform
> Sine wave
< br/>rElectrode spacing range
> Can be set<>~


rShift<>
Ground resistance: <>.&;~.& ; Fully automatic shifting
Soil resistivity:<>.&;~&; Fully automatic shifting

rBacklight<>light
> Controllable gray-white backlight suitable for dim places Use

rDisplay mode
> Large bits<>Display gray-white backlight

rMeasurement indication
> Measuring<>Flashing
< br/>r
Display field
> &;<>

rInstrument size
>
(Length<>)&; (Width)& ; (High)

rStandard test lines
> Bars: Red<>Black, Yellow, Green each

rSimple test lines
> Bars: Yellow<>. Green. Each bar

rAuxiliary ground rod
> Root


rMeasurement time
Voltage to ground: approx. <>times/second
Ground resistance, soil resistivity: about <>second/time

rGround voltage
The following measurements<> (The ground voltage measurement function cannot be used for measurement Commercial electricity)

rData storage
Group&;<>Storage indication display&; symbol indicates that the storage is full

rData review
Review &;<>R symbol indication during data

roverflow display
&;<>symbol indication during over-range overflow

rAlarm function
Measurement An alarm prompt is issued when the value exceeds the alarm set value

rBattery voltage
<
:/:/r/~.-//_:
Picture__
The battery voltage is low and the low battery symbol&;<>

rAutomatically shuts down
&;<>Indicates that it will automatically shut down after a few minutes after being turned on


rPower consumption<>Standby<> (backlight off)
Turn on backlight<>
Measurement:<> (backlight off)


rQuality<>Quality
Instrument<>(including battery)
Test line:<>(including simple test line)
Auxiliary ground rod:<>(root)
< br/>rOperating temperature and humidity
-℃～<>℃; below %r

rStorage temperature and humidity
-℃～<>℃; below %r

r Overload protection
> Measure ground resistance: <>-, - between each port/second

r Insulation resistance
&; Above<> (circuit and Between shells)

rWithstand voltage<>
/r (Between circuit and shell<>)

rElectromagnetic characteristics
()< br/>
rSuitable for safety regulations
-(Ⅲ<>, pollution degree);
-;
-(Ground resistance<>);
-( Soil resistivity<>);
-.