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SRR3000 Digital Earth Resistance Tester
I, Introduction
SRR3000 Digital Earth Resistance Tester
is specially designed and manufactured for field measurement,
adopting the latest digital and micro-processing technology, 3-pole
or 2-pole method for earth resistance measurement, with a unique
function of wire resistance verification, anti-interference
capability and the ability to adapt to the environment, 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 ground resistance
measurement.
SRR3000 Digital Earth Resistance Tester has a unique function of
wire resistance verification, more accurate on measuring on-site low
value earth ground resistance, which can avoid error caused by
resistance change due to prolonged usage of testing wire; avoid
error caused by testing wire that is failed to be fully inserted
into tester interface or by poor contact; avoid error caused by
users’ replacing or lengthening testing wires.
SRR3000 Digital Earth Resistance Tester is composed of host machine,
monitoring software, testing wires, 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 400 sets of data, fulfilling historical inquiry and online
real-time monitoring through monitoring software, dynamic display,
with the maximum, minimum, and mean indicators, with alarm settings
and alarm indicator, and with the functions like historical data
access, reading, preservation, report forms, printing and so on.
II, Technical Specifications
|
Model |
SRR3000 |
|
Function |
Earth resistance measurement, Earth voltage measurement, Low
resistance measurement |
|
Power Supply |
DC 9V (Zi-Mn dry battery R14S 1.5V 6 PCS, continuous standby
for 300 hours ) |
|
Measuring Mode |
Precise 3-pole measurement, simple 2-pole measurement |
|
Measuring Method |
Earth ground resistance: constant current change-pole
method, measurement current 3mA Max, 820Hz; |
|
Voltage to ground: average value rectification |
|
Data Mode |
Average value, maximum, minimum |
|
Wire Resistance Verification |
Avoid error caused by testing wire such as failed to be
fully inserted into tester interface or by poor contact or
by user’ s replacing or lengthening testing wires, making it
more accurate for earth ground resistance measurement. |
|
Display Mode |
4-digital super-large LCD display, blue screen backlight,
LCD dimension: 128mm×75mm; Display field: 124mm×67mm |
|
Measuring Indication |
During measurement, LED flash indicator, LCD count down
display |
|
Earth Ground Resistance |
Range: 0.01Ω~2000Ω; Resolution: 0.01Ω; Accuracy: ±1%rdg±3dgt |
|
Earth Ground Voltage |
Range: 0V~600V AC; Resolution: 1V; Accuracy: ±1%rdg±3dgt |
|
Tester Dimension |
LWH: 215mm×190mm×95mm |
|
Testing Wires |
Three wires: each for Red 20m, Yellow 10m, and Green 5m |
|
Simple Testing Wire |
2 wires: each for Red 1.5m and Green 1.5m |
|
Auxiliary Earthing Rod |
2 PCS: Φ10mm×150mm |
|
Measuring Rate |
Earth voltage measurement: 3 times/second; Earth resistance:
5 seconds/time |
|
Measuring Times |
Over 5000 times (20Ω range measuring 10Ω for one time and
repeat after 25 seconds) |
|
Circuit Voltage |
Measuring voltage to ground: measuring below AC 600V
|
|
RS232 Interface |
Possess RS232 interface, software supervision, storage data
can be uploaded to computer, preserved and printed.
|
|
Communication Wire |
One piece of RS232 communication wire, with length 1.5m |
|
Data Storage |
400 sets, flash display “FULL”icon to indicate storage is
full |
|
Data Hold |
Data hold function: “HOLD”icon display |
|
Data Read |
Data read function: “READ” icon display |
|
Overflow Display |
Exceeding measuring range overflow function: “OL”icon
display |
|
Alarm Function |
When measuring value exceeds alarm setting value, there is
“Toot-toot-toot” alarm hint |
|
Battery Voltage |
When battery voltage decreases to about 7.8V, battery
voltage low icon “ ”will display, reminding to replace
battery. |
|
Power Consumption |
Backlight: 25mA Max; Standby: 25mA Max(Backlight shut off);
Measurement: 70mA Max(Backlight shut off) |
|
Weight |
1443g(with batteries) |
|
Working Temperature & Humidity |
-10ºC~40ºC;
below 80%rh |
|
Storage Temperature & Humidity |
-20ºC~60ºC;
below 70%rh |
|
Overload Protection |
Measuring earth ground resistance: between each interfaces
of E-P, E-C, AC 280V/3 seconds |
|
Insulation Resistance |
Over 10MΩ(between circuit and enclosure it is 500V) |
|
Withstanding Voltage |
AC 3700V/rms (Between circuit and enclosure) |
|
Electromagnetic Features |
IEC61010-4-3, Wireless frequency electromagnetic field≤1V/m
|
|
Protection Type |
IEC61010-1, IEC1010-2-31, IEC61557-1,5, IEC60529(IP54), CAT
III 300V, Pollution etc. |
|
Accessories |
Tester: 1PC; Earthing Rod: 2PCS; Testing Wire: 3PCS; Simple
testing wire: 2PCS; RS232 Com-cable: 1PC; Software disk:
1PC; Tester bag: 1PC |
|
|
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 |
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SRR3000B Earth Resistance Soil
Resistivity Tester
I, Introduction
SRR3000B 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.
SRR3000B 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.
|
II. Technical Specifications |
|
1. Base Conditions and Working Conditions |
|
|
|
|
Influence Quantity |
Base Condition |
Working Conditions |
Remark |
|
Ambient Temp |
23ºC±1ºC |
-10ºC-40ºC |
---- |
|
Ambient Humidity |
40%-60% |
＜80% |
---- |
|
Working Voltage |
9V±0.1V |
9V±1.5V |
rC、rP |
|
Auxiliary Earth Resistance |
＜100Ω |
＜30kΩ |
---- |
|
Interference Voltage |
no |
＜20V |
---- |
|
Interference Current |
no |
＜2A |
|
|
Electrode Distance when measuring R |
a＞5d |
a＞5d |
---- |
|
Electrode Distance when measuring ρ |
a＞20h |
a＞20h |
---- |
|
2. General Specification |
|
Function |
Measurement of 2/3/4-pole earth resistance, soil resistivity,
earth voltage, AC voltage |
|
Power Supply |
DC 9V(Zi-Mn dry battery R14S 1.5V 6 PCS, continuous standby
for 300 hours ) |
|
Measurement Range |
Earth Resistance: 0.00Ω-30.00kΩ |
|
Soil Resistivity: 0.00Ωm-9000kΩm |
|
Measuring Mode |
Precise 4-pole measurement, 3-pole measurement, simple
2-pole measurement |
|
Measuring Method |
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) |
|
Test Frequency |
128Hz/111Hz/105Hz/94Hz(AFC) |
|
Short-circuit Test Current |
AC 20mA max |
|
Open-circuit Test Current |
AC 40V max |
|
Test Voltage Wave |
Sine wave |
|
Electrode Distance Range |
Can be set 1m-100m |
|
Shift |
Earth Resistance: 0.00Ω-30.00kΩ, automatic shift |
|
Soil Resistivity: 0.00Ωm-9000kΩm, automatic shift |
|
Backlight |
Blue screen backlight, suitable for dim places |
|
Display Mode |
4-digital super-large LCD display, blue screen backlight |
|
Measuring Indicator |
During measurement, LED flash indicator, LCD count down
display, progress bar indicator |
|
LCD Frame Dimension |
128mm×75mm |
|
LCD Window Dimension |
124mm×67mm |
|
Dimension |
L×W×H: 215mm×190mm×95mm |
|
Standard Test Wire |
4 wires: each for red 20m, black 20m, yellow 10m, and green
10m |
|
Simple Test Wire |
2 wires: each for red 1.6m and black 1.6m |
|
Auxiliary Earthing Rod |
4 rods: Φ10mm×150mm |
|
Measuring Rate |
Earth voltage: about 3 times/second |
|
Earth resistance, soil resistivity: about 5 seconds/time |
|
Measuring Times |
Over 5000 times (Short-circuit test, interval time should be
at least 30 seconds) |
|
Line Voltage |
below AC 600V |
|
RS232 Interface |
Possess RS232 interface, software supervision, storage data
can be uploaded to computer, saved or printed. |
|
Communication Wire |
One piece of RS232 communication wire, with length 1.5m |
|
Data Storage |
300 sets, “MEM” icon storage indicator, flash display “FULL”
icon to indicate storage is full |
|
Data Hold |
Data hold function: “HOLD” icon display |
|
Data Access |
Data read function: “READ”icon display |
|
Overflow Display |
Exceeding measuring range overflow function: “OL” icon
display |
|
Interference Test |
Recognize interference signal automatically, “NOISE” icon
display when interference voltage exceed 5V |
|
Auxiliary Earthing Test |
Can measure auxiliary earth resistance,
0.00KΩ-30kΩ(100R+rC<50kΩ, 100R+rP<50kΩ) |
|
Alarm Function |
When measuring value exceeds alarm setting value, there is
“Toot-toot-toot” alarm hint |
|
Battery Voltage |
When battery voltage decreases to about 7.5V, battery
voltage low icon will display, reminding to replace battery.
|
|
Power Consumption |
Standby: about 20mA (Backlight shut off) |
|
Boot and with backlight: about 45mA (25mA without backlight) |
|
Measurement: about 100mA (Backlight shut off) |
|
Weight |
Total weight: 4.5kg (including package) |
|
Tester: 1443g (including battery) |
|
Tesing wires: 1560g |
|
Auxiliary earthing rods: 935g (4pcs) |
|
Working Temperature & Humidity |
-10ºC-40ºC,
below 80%rh |
|
Storage temperature & humidity |
-20ºC-60ºC,
below 70%rh |
|
Overload Protection |
Measuring earth resistance: between each interfaces of C(H)-E、P(S)-ES,AC
280V/3 seconds |
|
Insulation Resistance |
Over 20MΩ (between circuit and enclosure it is 500V) |
|
Withstanding Voltage |
AC 3700V/rms (Between circuit and enclosure) |
|
Electromagnetic Features |
IEC61326(EMC) |
|
Protection Type |
IEC61010-1 (CAT III 300V, CAT IV 150V, Pollution 2),
IEC61010-031, IEC61557-1 (Earth resistance), IEC61557-5
(Soil resistivity), JJG 366-2004 |
|
3. Intrinsic error and performance indicators under base
conditions |
|
Category |
Measurement Range |
Intrinsic Error |
Resolution |
|
Earth Resistance
(R) |
0.00Ω-30.00Ω |
±2%rdg±3dgt |
0.01Ω |
|
30.0Ω-300.0Ω |
±2%rdg±3dgt |
0.1Ω |
|
300Ω-3000Ω |
±2%rdg±3dgt |
1Ω |
|
3.00kΩ-30.00kΩ |
±4%rdg±3dgt |
10Ω |
|
Soil Resistivity
(ρ) |
0.00Ωm-99.99Ωm |
According to the precision of R
(ρ=2πaR,
a:1 m-100m,
π=3.14) |
0.01Ωm |
|
100.0Ωm-999.9Ωm |
0.1Ωm |
|
1000Ωm-9999Ωm |
1Ωm |
|
10.00kΩm-99.99kΩm |
10Ωm |
|
100.0kΩm-999.9kΩm |
100Ωm |
|
1000kΩm-9000kΩm |
1kΩm |
|
Earth Voltage |
AC 0.0-600V |
±2%rdg±3dgt |
0.1V |
|
III. Accessories |
|
|
|
|
Tester |
1 PC |
|
Tester Bag |
1 PC |
|
Auxiliary Earthing Rod |
4 PCS |
|
Standard testing Wire |
4 wires: each for red 20m, black 20m, yellow 10m, and green
10m |
|
Simple testing Wire |
2 wires: each for red 1.6m and black 1.6m |
|
Zinc-manganese Dry Battery |
6 PCS (R14S 1.5V) |
|
Monitoring Software Disk |
1 Copy |
|
RS232 Communication Cable |
1 PC |
|
Manual/Warranty Card/Qualification Certificate |
1 Copy |
|
|
|
|
SRR2302 Digital Earth Resistance Tester
|
Resistance |
RANGE |
ACCURACY |
RESOLUTION |
|
Earth ground Resistance |
0Ω~29.99Ω |
±(2%+6dgt) |
0.01Ω |
|
30Ω~99.9Ω |
±(3%+3dgt) |
0.1Ω |
|
100Ω~999Ω |
±(3%+3dgt) |
1Ω |
|
1.00kΩ~4.00kΩ |
±(3%+3dgt) |
10Ω |
|
VOLTAGE |
RANGE |
ACCURACY |
RESOLUTION |
|
Earth voltage |
0V~200V(50~60Hz)
|
±(1%+5dgt)) |
0.1V |
|
Features |
»Digital Display & Analog Bars Display
»2 Pole and 3 Pole Mode
»Earth Resistance By Constant Current Inverter 800Hz/3mA
»MAX/MIN/AVG/REL Measurement Functions
»Data Logging:100 group
»Display Back Light
»Low Battery Indication
» Auto Power Off
|
|
GENERAL |
|
Power Supply |
6x1.5v AA batteries |
|
Product Size |
180mm x 140mm x65mm (7.1” x 5.5” x 2.6”) |
|
Product Weight |
950g(2.0lb) |
|
Category |
CE ETL CAT. III 1000V RoHS |
|
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SRR5521 Digital Earth Tester
|
SPECIFICATIONS
|
Basic Functions |
Range |
Best Accuracy |
|
Earth Resistance Testing |
0 ~ 20Ω
0 ~ 200Ω
0 ~ 2000Ω |
±2%rdg±0.1Ω
±2%rdg±3dgt
±2%rdg±3dgt |
|
Earth Voltage Testing |
0~200Vac(50/60Hz) |
±1%rdg±4dgt |
|
Special Functions |
|
|
|
Data Hold |
|
Yes |
|
Backlight Display |
|
Yes |
|
Data Logging |
20 |
Yes |
|
Battery Check |
|
Yes |
|
Sleep Mode |
Around 10 Minutes |
Yes |
|
Full Icon Display |
|
Yes |
|
Over-range Display |
Display "OL" |
Yes |
|
Contact Badness Display |
C Port or E Port don't contact Display"- - -
- W" |
Yes |
|
Simple 2-Wires Testing |
|
Yes |
|
Precision 3-Wires Testing
|
|
Yes |
|
Double Insulation Protection
|
|
Yes |
GENERAL CHARACTERISTICS
|
Power |
1.5V Alkaline Battery (AA) x 6 |
|
LCD Size |
70.6 mm x 34 mm |
|
Product Color |
Grey |
|
Product Net Weight |
560g |
|
Product Size |
160 x 100 x 70.5 mm |
|
Standard Accessories |
Battery, Three Test Lead (Green + Yellow +
Red), English Manual, Simple Test Lead,
Carrying Bag, Test Probe 2 pcs |
|
Standard Individual Packing |
Gift Box |
|
Standard Quantity Per Carton |
4 pcs |
|
Standard Carton Measurement |
615 x 530 x 190 mm (0.062 CBM Per Standard
Carton) |
|
Standard Carton Gross Weight |
15kg |
|
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SRR5522 Digital Earth Tester
|
SPECIFICATIONS
|
Basic Functions |
Range |
Best Accuracy |
|
Earth Resistance Testing |
0 ~ 40Ω
0 ~ 400Ω
0 ~ 4000Ω |
±2%rdg±0.2Ω
±2%rdg±3dgt
±2%rdg±3dgt |
|
Earth Voltage Testing |
0~400Vac(50/60Hz) |
±1%rdg±6dgt |
|
Special Functions |
|
|
|
Data Hold |
|
Yes
|
|
Backlight Display |
|
Yes |
|
Data Logging |
20 |
Yes |
|
Battery Check |
|
Yes
|
|
Sleep Mode |
Around 10 Minutes |
Yes
|
|
Full Icon Display |
|
Yes
|
|
Over-range Display |
Display "OL" |
Yes
|
|
Contact Badness Display |
C Port or E Port don't contact Display"- - -
- W" |
Yes
|
|
Simple 2-Wires Testing |
|
Yes
|
|
Precision 3-Wires Testing
|
|
Yes |
|
Double Insulation Protection
|
|
Yes |
GENERAL CHARACTERISTICS
|
Power |
1.5V Alkaline Battery (AA) x 6 |
|
LCD Size |
70.6 mm x 34 mm |
|
Product Color |
Grey |
|
Product Net Weight |
560g |
|
Product Size |
160 x 100 x 70.5 mm |
|
Standard Accessories |
Battery, Three Test Lead (Green + Yellow +
Red), English Manual, Simple Test Lead,
Carrying Bag, Test Probe 2 pcs |
|
Standard Individual Packing |
Gift Box |
|
Standard Quantity Per Carton |
4 pcs |
|
Standard Carton Measurement |
615 x 530 x 190 mm (0.062 CBM Per Standard
Carton) |
|
Standard Carton Gross Weight |
15kg |
|
|
|
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SRR4300 4-Terminal Ground Resistance and Soil Resistivity Tester
Features:
• 4 pole earth resistance measurement 0 to 20.99kΩ with min.
resolution 0.01Ω
• Auto ranging soil resistivity measurement 0 to 395.6kΩm
• Test current maximum 80mA
• Advance filtering method based on FFT (fast fourier transform)
reduces noise interference
• Compensation for residual resistance Rk
• Data Memory 1000 sets
• Conforms to CATIV 150V, CATIII 300V
Specifications:
IEC 61010-1 (CAT.III 300V, CAT.IV 150V, Pollution degree 2)
IEC 61010-031 (Requirements for hand-held Probes)
IEC 61557-1, 5 (Earth Resistance Tester)
Test range (temperature and humidity 23 ± 5ºC, 45 ~ 75％RH)
|
Function |
Range |
Resolution |
Testing range |
Accuracy |
|
Earth resistance Re
(Earth resistance ρ=Rg) |
2Ω |
0.01Ω |
0.05 ~ 2.09 Ω |
±3%rdg.±0.05Ω |
|
20Ω |
0.1Ω |
0.5 ~ 20.9 Ω |
±3%rdg.±5dgt
(Remaks 1) |
|
200Ω |
1Ω |
5 ~ 209 Ω |
|
2000Ω |
10Ω |
0.05 ~ 2.09 KΩ |
|
20KΩ |
100Ω |
0.5 ~ 20.9 KΩ |
|
Auxiliary earth resistance Rh, Rs |
|
|
|
Re+Rh+Rs 8% |
|
Soil resistance ρ |
2Ω |
0.3 ~ 393.7 Ω.m |
|
|
20Ω |
3 ~ 3937 Ω.m |
ρ＝2×Π×a×Rg
(Remaks 2) |
|
200Ω |
0.03 ~ 39.37 KΩ.m |
|
2000Ω |
0.3 ~ 393.7 KΩ.m |
|
20KΩ |
3 ~ 1999 KΩ.m |
(remarks 1) revised Auxiliary
Earth Resistance 100Ω, Rk.
(remarks 2) Depending on the test value of Rg. Between the auxiliary
ground rods「a」1.0 ~ 30.0m |
|
SRR4200 Digital Earth Tester
 
Digital earth resistance tester
SRR4200
is a new generation tester for electrician practice which is
developed in recent years. The circuit, structure and technique of
traditional earth resistance tester have been improved and the new
design is both fine-looking and practical. This one has more
complete functions, higher accuracy, more convenient and reliable
for operation and more suitable for outdoor use with dust and wet
proof structure.
It can test earth resistance of various earth systems including
power systems, electric equipments, lightning conductors as well as
resistance value of low resistance conductor and AC voltage test.
Features:
-LCD backlight;
-data hold;
Specifications:
|
MODEL |
SRR4200 |
|
Earth Ground Resistance |
0/20/200/2000Ω ±(2%+3) |
|
Earth Voltage |
0~30V ±(3%+5) |
|
Resolution |
0.01Ω |
|
Data Hold |
yes |
|
Working LED Indicator |
yes |
|
Function Symbol Display |
yes |
|
Low Battery Warning |
yes |
|
LCD Background Light |
yes |
General Characteristics:
|
Power |
AA1.5Vx8(UM3) |
|
Product Size |
190 x 155 x 75 mm |
|
Product net weight |
approx. 900g |
|
Standard Accessories |
   |
|
Standard individual packing |
Carry case |
|
Standard Quantity per Carton |
5 pcs. |
|
Measurement of Standard Carton |
645*360*276mm (0.064 CBM) |
|
Gross weight of Standard Carton |
13kgs |
|
|
SRR4100 Digital earth
tester
Digital earth resistance tester
SRR4100
is a new generation tester for electrician practice which is
developed in recent years. The circuit, structure and technique of
traditional earth resistance tester have been improved and the new
design is both fine-looking and practical. This one has more
complete functions, higher accuracy, more convenient and reliable
for operation and more suitable for outdoor use with dust and wet
proof structure.
It can test earth resistance of various earth systems including
power systems, electric equipments, lightning conductors as well as
resistance value of low resistance conductor and AC voltage test.
Specifications:
|
MODEL |
SRR4100 |
|
Earth Ground Resistance |
0/20/200/2000Ω ±(2%+3) |
|
Earth Voltage |
0~30V ±(3%+5) |
|
Resolution |
0.01Ω |
|
Data Hold |
yes |
|
Working LED Indicator |
yes |
|
Function Symbol Display |
yes |
|
Low Battery Warning |
yes |
General Characteristics:
|
Power |
AA1.5Vx6(UM3) |
|
Product Size |
150 x 100 x 70 mm |
|
Product Net Weight |
approx. 680g |
|
Standard Accessories |
 |
|
Standard individual packing |
Carry case |
|
Standard Quantity per Carton |
5 pcs. |
|
Measurement of Standard Carton |
510*265*293mm (0.040 CBM) |
|
Gross weight of Standard Carton |
12.5kgs |
|
|
SRR4102 Analog Earth
Resistance Tester
Analog Earth Resistance Tester
SRR4102
has complete functions and high accuracy. It is convenient and
reliable to operate and more suitable for outdoor use with dust and
wet proof structure.
It can test earth resistance of various earth systems including
power systems, electric equipments, lighting conductors as well as
resistance value of low resistance conductor and AC voltage below
30V.
Specifications:
|
MODEL |
SRR4102 |
|
Earth Ground Resistance |
0/10/100/1000Ω ±5% |
|
Earth Voltage |
0~30V ±5% |
|
Low Battery Warning |
yes |
General Characteristics:
|
Power |
AA1.5Vx6(UM3) |
|
Product Size |
150 x 100 x 70 mm |
|
Product Net Weight |
680g |
|
Standard Accessories |
|
|
Standard individual packing |
Carry case |
|
Standard Quantity per Carton |
5 pcs. |
|
Measurement of Standard Carton |
510*265*293mm (0.040 CBM) |
|
Gross weight of Standard Carton |
12.5kgs |
|
