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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 |
|
|
 |
 |
|
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 |
|
|
|
|
|
|
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 |
|
|
|
|
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 |
|
|
 |
|
SRR4105VA Grounded resistance tester
Feature:
SRR4105V/B ground resistance tester
1. This digital ground resistance tester is a new generation of
electrical test instruments, beautiful and practical style.
2. Full-featured, high accuracy, convenient and reliable operation,
dustproof moisture-proof structure, better suited to field use.
3. It can be used to measure a variety of power systems, electrical
equipment, lightning protection equipment grounding system grounding
resistance value, it can also measure AC voltage
Basic function:
|
Measure mode |
Range |
Resolution |
Basic accuracy |
|
Ground resistance |
20Ω |
0.01Ω |
±(2%+0.1Ω) |
|
200Ω |
0.1Ω |
±(2%+3dgt) |
|
2000Ω |
1Ω |
|
Ground current ( AC current) |
200V |
0.1V |
±(2.0%+6dgt) |
General features:
|
Display |
84.8×59.8mm LCD display, max display “1999” |
|
Over range presentation |
it will display “1”on the top number when it is
over range |
|
Power |
alkalescence battery LR
(1.5V)×8
(can
contact with power adapter)
when the battery is low, it will display a low
battery sign |
|
Power Dissipation |
Electricity cost during test<=800mw |
|
Work environment |
Temperature 0-40ºC; relative humidity 30%-80%RH |
|
Product size |
175(L)×110(W)×70(D)mm |
|
Weight |
Approx : 680g
(include
battery) |
|
|
|
|
|
 |
|
SRR4105VB Grounded resistance tester
Feature:
SRR4105VA/B ground resistance tester
1. This digital ground resistance tester is a new generation of
electrical test instruments, beautiful and practical style.
2. Full-featured, high accuracy, convenient and reliable operation,
dustproof moisture-proof structure, better suited to field use.
3. It can be used to measure a variety of power systems, electrical
equipment, lightning protection equipment grounding system grounding
resistance value, it can also measure AC voltage
Basic function:
|
Measure mode |
Range |
Resolution |
Basic accuracy |
|
Ground resistance |
10Ω |
0.01Ω |
±(2%+21Ω) |
|
100Ω |
0.1Ω |
±(2%+3dgt) |
|
1000Ω |
1Ω |
|
Ground current ( AC current) |
750V |
1V |
±(1%+10dgt) |
General features:
|
Display |
84.8×59.8mm LCD display, max display “1999” |
|
Over range presentation |
it will display “1”on the top number when it is
over range |
|
Power |
alkalescence battery LR
(1.5V)
× 8(can
contact with power adapter)
when the battery is low, it will display a low
battery sign |
|
Power Dissipation |
Electricity cost during test<=800mw |
|
Work environment |
Temperature 0-40ºC; relative humidity 30%-80%RH |
|
Product size |
175(L)×110(W)×70(D)mm |
|
Weight |
Approx : 680g
(include
battery) |
|
|
|
|
SRR2800B Non-Contact Grounding Resistance
Online Detector
 |
|
Brief Introduction
SRR2800B Non-Contact Resistance Online Tester is our company devotes
ourselves to Grounding resistance test technical research’s another new
high-tech product for more than ten years. Detector adopts weather
fastness material manufacture, temperature resistance, cold-resistant,
corrosion prevention, fire prevention. Detector’s structure is rigorous
and firm, against rain, dustproof, installation and use outdoors.
Non-contact measurement, safe and reliable, Ease of installation.
Grounding down lead is directly through the detector perforation, Will
not affect lightning protection grounding effect and the normal
operation of the facilities. Ensure high-accuracy, high stability and
high reliability of long time on-line monitoring outdoors, underground
mine and indoors.
SRR2800B Non-Contact Grounding Resistance Online Detector applies to
electric transmission line pole ground connection, underground mine
device ground connection, Meteorological lightning protection ground
connection, petrochemical engineering ground connection, communication
ground connection, rail facility ground connection, building the
warehouse ground connection, electrical equipment ground connection
etc.. Detector provides power supply and RS485 signal interface, and
standard MODBUS-RTU communication protocol, which user can do secondary
development to realize remote monitoring.
Technical Specifications
|
Functions |
Return circuit ground resistance, metallic return connection
resistance, grounding conditions on-line monitoring
|
|
Power Supply |
6VDC~9VDC, 50mA Max. |
|
Resistance Range |
0.01Ω~200Ω
|
|
Resolution |
0.001Ω
|
|
Accuracy |
±2%rdg±3dgt
(20ºC±5ºC,
below70%RH) |
|
Grounding Wire Perforation Size |
60mm×30mm,
closed mode (60mm×4mm
steel flat or external diameterФ30mm
electric cable) |
|
Connecting Line |
A one meter long wire (5cores shielded wire) |
|
Connection Identifier |
Red/brown---power supply input anode.
Black--- power supply input cathode
Blue---RS485 signal anode.
Grey---RS485 signal cathode.
White--- analog grounding (power supply input cathode can
connects with analog grounding by short circuit connection).
|
|
Communication Protocol |
RS485 standard MODBUS-RTU communication protocol
|
|
Detector Dimensions |
175mm×170mm×130mm
|
|
Installing Screw Hole Size |
Φ8mm
|
|
Quality |
Detector:960g |
|
Working Temperature And Humidity |
-10ºC~40ºC;
20%RH~90%RH |
|
Humiture Error |
Within 5% |
|
Shift |
Automatic shift |
|
GND Interference Current |
Prohibited |
|
External Magnetic Field |
＜40A/m
|
|
External Electric Field |
＜1V/m
|
|
Single Measurement Of Time |
About 0.5 second |
|
Power Consumption |
50mA Max. |
|
Installation |
Grounding wire through Detector centre bore |
|
Level Of Protection |
IP65 |
|
Installation Requirements |
Avoid rain and water logging |
|
Power Supply Mode |
External power supply (Equipped by user) |
The Application of Figure
  |
|
|
|
SRR2800C Multifunction Non-Contact
Resistance Online Tester
 |
|
Brief Introduction
SRR2800C Multifunction Non-Contact Resistance Online Tester is our
company devotes ourselves to Grounding resistance test technical
research’s another new high-tech product for more than ten years.
Detector adopts weather fastness material manufacture, temperature
resistance, cold-resistant, corrosion prevention, fire prevention.
Detector’s structure is rigorous and firm, against rain, dustproof,
installation and use outdoors. Non-contact measurement, safe and
reliable, Ease of installation. Grounding down lead is directly through
the detector perforation, Will not affect lightning protection grounding
effect and the normal operation of the facilities. Ensure high-accuracy,
high stability and high reliability of long time on-line monitoring
outdoors, underground mine and indoors.
SRR2800C Multifunction Non-Contact Resistance Online Tester is equipped
with LCD display and alarm light, which can observe grounding resistance
value at any times and set the alarm critical val. Alarm light will
flash when measured value is beyond pre-set critical value. Detector
applies to electric transmission line pole ground connection,
underground mine device ground connection, meteorological lightning
protection grounding connection, petrochemical engineering ground
connection, communication ground connection, rail facility ground
connection, building the warehouse ground connection, electrical
equipment ground connection etc.. Detector provides power supply and
RS485 signal interface, and standard MODBUS-RTU communication protocol,
which user can do secondary development to realize remote monitoring.
SRR2800C’s LCD shows measured value directly, also sets up Detector’s
alarm critical value, and possess audible and visual alarming function,
which is very suitable to Independent installation and use when it
needn’t form a network.
Technical Specifications
|
Functions
|
Return circuit ground resistance, metallic return connection
resistance, grounding conditions on-line monitoring
|
|
Power Supply
|
6VDC~9VDC, 50mA Max. |
|
Resistance Range
|
0.01Ω~200Ω
|
|
Resolution
|
0.001Ω
|
|
Display Range |
0.01Ω~500Ω
|
|
Accuracy
|
±2%rdg±3dgt
(20ºC±5ºC,
below70%RH) |
|
Grounding Wire Perforation Size
|
60mm×30mm,
closed mode (60mm×4mm
steel flat or external diameterФ30mm electric cable)
|
|
Overflow Indication
|
When show value is beyond
500Ω, systems software and LCD show “OLΩ” sign. |
|
Connecting Line
|
A one meter long wire (5cores shielded wire) |
|
Connection Identifier
|
Red/brown---power supply input anode.
Black--- power supply input cathode
Blue---RS485 signal anode.
Grey---RS485 signal cathode.
White--- analog grounding (power supply input cathode can
connects with analog grounding by short circuit connection).
|
|
Communication Protocol
|
RS485 standard MODBUS-RTU communication protocol
|
|
Alarm Indication |
Detector Audible and visual alarm
instructions |
|
Alarm Setting |
Detector panel setting |
|
Data Display |
4digits LCD direct indication
|
|
LCD Dimensions |
47mm×28.5mm |
|
Detector Dimensions
|
175mm×170mm×130mm
|
|
Installing Screw Hole Size
|
Φ8mm
|
|
Quality
|
Detector:960g |
|
Working Temperature And Humidity
|
-10ºC~40ºC;
20%RH~90%RH |
|
Humiture Error
|
Within 5% |
|
Shift
|
Automatic shift |
|
GND Interference Current
|
Prohibited |
|
External Magnetic Field
|
＜40A/m
|
|
External Electric Field
|
＜1V/m
|
|
Single Measurement Of Time
|
About 0.5 second |
|
Power Consumption
|
50mA Max. |
|
Installation
|
Grounding wire through Detector centre bore |
|
Level Of Protection
|
IP65 |
|
Installation Requirements
|
Avoid rain and water logging |
|
Power Supply Mode
|
External power supply (Equipped by user) |
The Application of Figure
|
|
|
|
SRR2900 Online Earth Resistance Tester
 |
|
Brief introduction
ETCR2900 Online Earth Resistance Tester is our company devotes ourselves
to Grounding resistance test technical research’s another new high-tech
product for more than ten years. Adopting precise 3-wire or simple
2-wire method for ground resistance measurement, average value
rectification method for ground voltage measurement online testing and
real-time monitoring. The user can select RS232 or RS485 communication,
according to the protocol MODBUS, the user also can proceed secondary
development, build network, realization of remote multipoint online
monitoring etc.
ETCR2900 Online Earth Resistance Tester composed of the detector and the
monitoring software. The large LCD display of the detector is very
intuitive. Setting the alarm thresholds and audible and visible alarm
indicator are available. The material of the shell has the
characteristic of resistance to high low temperature, corrosion
prevention, inflaming retarding etc, ensure high-accuracy, high
stability and high reliability of long time on-line monitoring outdoors,
underground mine and indoors. The monitor software can real-time display
the values of measured ground resistance and voltage. The user also can
set the automatic monitoring interval time by the detector or the
monitor software, the range of interval time is 1-999 hours. The
automatic recording data can be generated reports, it is convenient to
preservation, historical data query, print, analysis.
ETCR2900 Online Earth Resistance Tester apply to transmission line tower
grounding, underground mine equipment grounding, meteorological
lightning proof grounding, petrochemical grounding, communication
grounding, distribution substation grounding, railway equipment
grounding, building warehouse grounding, electrical equipment grounding
etc.
Technical Specification
|
Function
|
On-line monitoring ground resistance, ground voltage,
equipotential connection resistance, low resistance.
|
|
Power Supply
|
Standard: 12V±1VDC,
150mA Max.
Optional: 24V±1VDC.
|
|
|
Range |
Accuracy |
Resolution |
|
Resistance
|
0.01Ω~20Ω
|
±1%rdg±3dgt
(auxiliary ground resistance 100Ω±5%,
voltage to ground<10V) |
0.01Ω
|
|
0.1Ω~200Ω
|
0.1Ω
|
|
1Ω~2000Ω
|
1Ω
|
|
Voltage
|
0~600V AC |
±1%rdg±3dgt
|
1V |
|
Measure Mode
|
Precise 3-wire measurement, simple 2-wire measurement.
|
|
Measure Method
|
Ground resistance: rated current change-pole method, measured
current 3mA Max, 820Hz;
Voltage to ground: average value rectification method.
|
|
Data Mode
|
Mean. |
|
Display Mode
|
4-digital super-large LCD. |
|
Measuring Indicator
|
During measurement, LCD count down display. |
|
LCD Size
|
128mm×75mm;
Display field: 124mm×67mm.
|
|
Dimension
|
L×W×H:
190mm×117mm×54mm.
|
|
Measure Rate
|
Voltage to ground: about 2 times/second; ground resistance:
about 30 seconds/time. |
|
Measure Times
|
Over 5000 times (Measuring 10Ω
for one time and take a pause for 30s). |
|
Line Voltage
|
Measuring voltage to ground: measuring below AC 600V.
|
|
Instrument Interface
|
Pluggable terminal blocks: 9 pin connector. |
|
Communication Method
|
RS485 (or optional RS232). |
|
Communication Line
|
USB to RS485 communication line( or optional USB to RS232
communication line). |
|
Range Shift
|
Automatically. |
|
Data Storage
|
400 sets, flash display FULL icon to indicate storage is
full. |
|
Interval Time
|
Range of automatic monitoring interval time: 1-999 h.
|
|
Data Access
|
Data read function: READ icon display. |
|
Overflow Display
|
Exceeding measuring range overflow function: OL icon
display. |
|
Power Consumption
|
Backlit : 20mA Max. |
|
Standby: 25mA Max. |
|
Measurement: 70mA Max. |
|
Alarm
|
Audible and visible alarm. |
|
Power supply Voltage
|
When power supply voltage decreases to about 7.8V, will
display, reminding to replace the power. |
|
Weight
|
Detector: 450g. |
|
Working Humiture
|
-10ºC~40ºC;
below 80%rh. |
|
Storage Humiture
|
- -20ºC~60ºC;
below 70%rh. |
|
Overload Protection
|
Measurement ground resistance: E-P, E-C between
each interfaces AC 280V/3 sec. |
|
Insulation Value
|
Over 10MΩ(between
circuit and enclosure 500V). |
|
Withstand Voltage
|
AC 3700V/rms. (Between circuit and enclosure). |
|
Electromagnetism
|
IEC61010-4-3,Radio frequency electromagnetic field≤1V/m. |
|
Applicable Safety Rules
|
IEC61010-1, IEC1010-2-31, IEC61557-1,5, IEC60529(IP54),
Pollution degree 2, CAT III 300V. |
Field application
 |
