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
measurement method:
0.00Ω~19.99K Error:
|
0.00Ω~19.99Ω
|
≤±3%+3pts
|
|
20.0Ω~19.99KΩ
|
≤±5%+3pts
|
|
Measurement method of four-wires
and jaw: 0.00Ω~1.99KΩ Error:
|
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
4.8V DC, 4×1.2V AANi-Mh recharge battery
|
|
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双钳口接地电阻测试仪适用于各种设备及建筑物的接地装置的接地电阻的测试。如通信设备、电信电缆、机房、电力配电线路、电塔输电线路、加油站、工厂接地网、避雷针等，还可测量各种条件下的土壤电阻率及接地系统泄露电流。
该仪表除了具有传统打辅助地极测接地电阻的功能外，还具备了无辅助地极测量的独特功能，改变了测试接地电阻传统的测量原理和手段。采用二点极测量原理和利用双钳口测量技术，无需打辅助地极、无需将接地体与设备隔离，实现了在线测量。
本机具有智能化测量功能，不仅能自动校准，而且还能储存和浏览测量结果，并具有数据上传功能，可在PC机上进行数据分析。
主要特点：
1. 采用钳表式测量方法，无需打辅助地桩，适应各种条件下接地电阻测试的需要；
2. 可在线测量，无需将接地体与设备隔离；
3. 技术先进，具有智能化测试功能；
4. 可在不断开接地系统的条件下测试泄露电流真有效值；
5. 具有自校准功能，避免接触电阻及线阻，对测试结果造成的影响；
6. 精度高、误差小、解决了小电阻测量的准确性问题；
7. 测量功能转换，采用电子开关进行切换以提高系统可靠性；
8. 与上位PC机进行通讯，实现测量数据上传，便于保存打印；
9. 操作简单、使用方便、范围大、宽量程、具有背光照明系统；
10. 塑胶护套，抗震性好。
1. 四线法接地电阻测量范围：0.00Ω～19.99KΩ
误差： 0.00Ω～19.99Ω ≤±3%+3个字
20.0Ω～19.99KΩ ≤±5%+3个字
2. 四线+钳口测量范围：0.00Ω～1.99KΩ
误差： 0.00Ω～1.99KΩ ≤±3%+3个字
3. 双钳口测量范围：0.0Ω～100Ω
误差： 0.0Ω～19.9Ω ≤±10%+2个字
误差： 20Ω～100Ω ≤±20%+2个字
4. 地阻率测量范围：0.00～1999KΩm
误差： 0.01Ωm～1999Ωm ≤±3%+3个字
误差： 2.00KΩm～1999KΩm ≤±5%+3个字
5. 泄漏电流（真有效值）测量范围：0.0mA～19.9A
误差： 0.0mA～9.99A ≤±3%+3个字
误差： 10.0A～19.9A ≤±5%+3个字
6. 存储容量：250组数据
7. 工作温度：-10℃～+55℃
8. 存储温度：-30℃～+70℃
9. 电源：6 V d.c.（4 ×1.5V电池 5号AA）或4.8V d.c.（4×1.2V镍氢充电电池5号AA）
10. 重量：1.0㎏（不含附件）
11. 尺寸：215×115×85㎜
● 接地电阻的测量
四线法测量接地电阻
四线+钳口测量
双钳口测量
● 土壤电阻率
● 泄漏电流
|
