TE-12B Double Clamps Earth Tester is widely used in the fields of resistance testing for earth resistance of various equipments and buildings. It also can test the soil resistively and leakage current of earth systems under different conditions.
It not only possesses the function of the traditional method but the features of earth resistance testing without assistant poles, It realizes the on-line measurement of earth resistance without assistance poles and isolation of earth devices and equipments by adopting the principle of 2-poles measurement and the technology of double jaws.
Key Features:
1. Adopt the measurement method in the type of jaw and meters, can be operated without assistance poles.
2. Realize the on-line measurement; it is unnecessary to isolate the earth device from equipment.
3. Test the RMS of leakage current under the conditions of earth/unearth of system.
4. With the function of self-checking and avoid the influence for the test result by connecting the resistance and line resistance
5. Realize the alternation of functions, adopt the digital switch to cutover the function in order to improve the reliability of system.
6. Communicate with the upper-level PC to realize uploading of the test data which can be saved and printed easily.
7. Easy and convenient operation with broad range of usage and measurement, with the backlighting system.
8. Electrical safety: It should agree with the standard of IEC1010-1, EN61010-1 or IP53
Measuring range for the four-wires |
0.00Ω~19.99Ω |
≤±3%+3pts |
20.0Ω~19.99KΩ |
≤±5%+3pts |
|
Measurement method of four-wires |
0.00Ω~1.99KΩ |
≤±3%+3pts |
For double jaws: 0.00Ω~100ΩError: |
0.0Ω~19.9Ω |
≤±10%+2pts |
20Ω~100Ω |
≤±20%+2pts |
|
For resistively of earth resistance: 0.00~1999KΩm Error: |
0.01Ωm~1999Ωm |
≤±3%+3pts |
2.00KΩm~1999KΩm |
≤±5%+3pts |
|
For the leakage(RMS): 0.0mA~19.9A Error: |
0.0mA~9.99A |
≤±3%+3pts |
10.0A~19.9A |
≤±5%+3pts |
|
Storage capacity: |
250 groups of datas |
|
Working temperature: |
-10℃~+55℃ |
|
Storage temperature: |
-30℃~+70℃ |
|
Power supply |
6 V DC, 4 × 1.5V AA alkaline dry battery or |
|
Weight: |
1.0㎏(exclusive of accessories) |
|
Dimension |
215×115×85mm |
It is only for reference. The actual accessories and quantity are according to demand.
No. |
Item |
Qty. |
1 |
TE-12B Double Clamp Earth Tester |
1 pc |
2 |
Clamp (Voltage sensor) |
1 pc |
3 |
Clamp (Current sensor) |
1 pc |
4 |
User Manual |
1 pc |
5 |
Attached disc |
1 pc |
6 |
Qualified certificate of product/Warranty card |
1 pc |
7 |
Packing list |
1 pc |
8 |
1.2V 5# 2000mAh Rechargeable batteries |
4 pcs |
9 |
Speical charger |
1 pc |
10 |
Foot pin |
4 pcs |
11 |
Connecting wire of foot pin |
4 pcs |
12 |
Alligator clip |
4 pcs |
13 |
bobbin bracket |
4 pcs |
14 |
RS232 Serial port Communicaiton wire |
1 pc |
15 |
Soft bag |
1 pc |
TE-12B雙鉗口接地電阻測(cè)試儀適用于各種設(shè)備及建筑物的接地裝置的接地電阻的測(cè)試。如通信設(shè)備、電信電纜、機(jī)房、電力配電線路、電塔輸電線路、加油站、工廠接地網(wǎng)、避雷針等,還可測(cè)量各種條件下的土壤電阻率及接地系統(tǒng)泄露電流。
該儀表除了具有傳統(tǒng)打輔助地極測(cè)接地電阻的功能外,還具備了無(wú)輔助地極測(cè)量的獨(dú)特功能,改變了測(cè)試接地電阻傳統(tǒng)的測(cè)量原理和手段。采用二點(diǎn)極測(cè)量原理和利用雙鉗口測(cè)量技術(shù),無(wú)需打輔助地極、無(wú)需將接地體與設(shè)備隔離,實(shí)現(xiàn)了在線測(cè)量。
本機(jī)具有智能化測(cè)量功能,不僅能自動(dòng)校準(zhǔn),而且還能儲(chǔ)存和瀏覽測(cè)量結(jié)果,并具有數(shù)據(jù)上傳功能,可在PC機(jī)上進(jìn)行數(shù)據(jù)分析。
主要特點(diǎn):
1. 采用鉗表式測(cè)量方法,無(wú)需打輔助地樁,適應(yīng)各種條件下接地電阻測(cè)試的需要;
2. 可在線測(cè)量,無(wú)需將接地體與設(shè)備隔離;
3. 技術(shù)先進(jìn),具有智能化測(cè)試功能;
4. 可在不斷開(kāi)接地系統(tǒng)的條件下測(cè)試泄露電流真有效值;
5. 具有自校準(zhǔn)功能,避免接觸電阻及線阻,對(duì)測(cè)試結(jié)果造成的影響;
6. 精度高、誤差小、解決了小電阻測(cè)量的準(zhǔn)確性問(wèn)題;
7. 測(cè)量功能轉(zhuǎn)換,采用電子開(kāi)關(guān)進(jìn)行切換以提高系統(tǒng)可靠性;
8. 與上位PC機(jī)進(jìn)行通訊,實(shí)現(xiàn)測(cè)量數(shù)據(jù)上傳,便于保存打�。�
9. 操作簡(jiǎn)單、使用方便、范圍大、寬量程、具有背光照明系統(tǒng);
10. 塑膠護(hù)套,抗震性好。
1. 四線法接地電阻測(cè)量范圍:0.00Ω~19.99KΩ
誤差: 0.00Ω~19.99Ω ≤±3%+3個(gè)字
20.0Ω~19.99KΩ ≤±5%+3個(gè)字
2. 四線+鉗口測(cè)量范圍:0.00Ω~1.99KΩ
誤差: 0.00Ω~1.99KΩ ≤±3%+3個(gè)字
3. 雙鉗口測(cè)量范圍:0.0Ω~100Ω
誤差: 0.0Ω~19.9Ω ≤±10%+2個(gè)字
誤差: 20Ω~100Ω ≤±20%+2個(gè)字
4. 地阻率測(cè)量范圍:0.00~1999KΩm
誤差: 0.01Ωm~1999Ωm ≤±3%+3個(gè)字
誤差: 2.00KΩm~1999KΩm ≤±5%+3個(gè)字
5. 泄漏電流(真有效值)測(cè)量范圍:0.0mA~19.9A
誤差: 0.0mA~9.99A ≤±3%+3個(gè)字
誤差: 10.0A~19.9A ≤±5%+3個(gè)字
6. 存儲(chǔ)容量:250組數(shù)據(jù)
7. 工作溫度:-10℃~+55℃
8. 存儲(chǔ)溫度:-30℃~+70℃
9. 電源:6 V d.c.(4 ×1.5V電池 5號(hào)AA)或4.8V d.c.(4×1.2V鎳氫充電電池5號(hào)AA)
10. 重量:1.0㎏(不含附件)
11. 尺寸:215×115×85㎜
● 接地電阻的測(cè)量
四線法測(cè)量接地電阻
四線+鉗口測(cè)量
雙鉗口測(cè)量
● 土壤電阻率
● 泄漏電流