MANUAL CE-8201
CONTENT I. Safety rules and precautions ...................................................................................................................................... 2 II． Introduction .................................................................................................................................................................. 2 III. Range and accuracy .................................................................................................................................
I. Safety rules and precautions Thank you for purchasing our company's Ground pile clamp earth resistance tester. In order to better use this product, please be sure to: ——Read this user manual in detail. ——Strictly follow the safety rules and precautions listed in this manual. ² This instrument according to IEC61010 safety specifications for design, production, inspection. ² In any case, use the meter should pay special attention to safety.
shock-proof, dust-proof, and moisture-proof structure. It is a commonly used and indispensable instrument for telecommunications, electric power, meteorology, computer rooms, oil fields, electronic mechanical installation and maintenance, and industrial enterprises that use electricity as industrial power or energy.
100.0kΩm～999.9kΩm 100Ωm 1000kΩm～9999kΩm 1kΩm Note 1: R depends on the measurement accuracy of the three-four-wire method, π=3.14, a: 1 m~100m; IV．Model of Series Model CE-8201 Clamp resistance Range 0.00Ω-1800Ω Leakage current range 0.000mA-50A Current resolution 1uA Three-four-wire method range 0.00Ω-30kΩ Soil resistivity range 0.
V．Technical Specification Function Ground resistance test, loop resistance test, AC current test, AC voltage test Accuracy guaranteed temperature and humidity 23℃±5℃, below 75%rh Power Supply DC 3.7 Vlithium battery Resistance resolution 0.01Ω Current resolution 0.001mA Voltage resolution 0.01V Clamp Size 68mm Display LCD Size Meter Dimension measure time USB Communication line Data storage Overflow display 2.
VI．Structure !# &# 1. Clamp "# 2. Jaw opening and closing trigger 3. MENU key $# 4. ▲ 5. Power button 6. TEST %# 7. ▼ 8. Screen 9. E port 10. H port 11. USB interface *# 12. Charging indicator 13. ES port !!# 14. S port '# (# )# !+# !"# !%# !$# VII．Interface display 7.
（7）Soil resistivity measurement （8）Data query interface （9）Alarm function interface （10）Brightness setting interface 7.2 Interface icon symbol description ⑴. Jaw opening symbol, which is displayed when the jaw is opened. At this time, the trigger may be pressed artificially; or the jaws have been seriously contaminated, and the measurement cannot be continued. ⑵. Battery voltage low symbol, when the battery voltage is too low, this symbol is displayed.
⑼. Representation selection method measurement interface. ⑽. Indicates the soil resistivity measurement interface. ⑾. Indicates that the current data is held and saved VIII. Measuring Principle 8.1 Principle of Clamp Method Resistance Measurement The basic principle of the clamp ground resistance meter to measure the ground resistance is to measure the loop resistance.See below. The jaw part of the clamp meter is composed of a voltage coil and a current coil.
for measuring the grounding resistance value of one of the parallel grounding systems without tripping.An alternating current I is applied between the ground electrode of Re1 Re2 Re3 and the current electrode of H, the current I3 flowing through Re3 is measured by the current clamp A, and the potential difference V between the ground electrode of Re3 and the voltage electrode of S is measured at the same time, and according to the formula Re3= V/I3 calculates the grounding resistance value Re3.
E4: Changes caused by interference voltage changes E5: Change in resistance of contact electrode 8.6 AC current measurement principle True RMS measurement 8.7 Ground voltage measurement principle Average measurement. IX. Operation Method 9.1 Boot up Before starting up, press the trigger once or twice to make sure the jaws are well closed Do not apply external force to the jaws, otherwise the accuracy of the measurement cannot be guaranteed Press the power button to switch the machine.
Fig. 8.4-2 Schematic diagram of four-wire measurement wiring Fig. 8.4-2 Schematic diagram of three-wire measurement wiring 9.5 Ground voltage measurement 1) In the menu selection, select the "voltage measurement" function and press the TEST to enter. 2) Insert the test wire into the S and ES ports at the bottom of the meter, as shown in the figure below. Wait for the value to stabilize and read the displayed voltage value.
3) Press the TEST key to keep the data and save it, the screen displays the "HOLD" icon, short press the TEST key again to cancel the hold state, the screen does not display the "HOLD" icon. 4) Press the MENU key to return to the main menu. 9.8 Soil resistivity measurement 1) In the menu selection, select the "Soil resistivity measurement" function and press the TEST to enter. 2) After entering the soil resistivity test interface, the upper right corner of the LCD displays the current depth value.
9.9 Alarm Settings Alarm type Alarm State Alarm threshold Threshold step cursor 1) In the menu selection, select the "alarm function" function, press the TEST key to enter 2) The alarm thresholds for four measurement functions can be set. 3) After entering the alarm function interface, you can switch the set alarm type by short pressing the ▲ key or the ▼ key.
computer side will not be connected. If you need to use the software on the computer side, please disconnect the Bluetooth connection on the mobile phone before using it. 3) After successful connection, it can operate test and display online, browse history storage data, and set alarm value. XII. Field Application 1!Multi-point grounding system For multi-point grounding systems (such as power transmission system tower grounding, communication cable grounding systems, certain buildings, etc.
RN + 1 = RNT 1 1 1 + + ...... + R1 R2 R( N -1) R1, R2,...RN are the grounding resistances of N grounding bodies we require. R1T, R2T,...RNT are the resistances measured on each grounding branch with clamp meter. This is a nonlinear equation system with N unknowns and N equations. It has a definite solution, but it is very difficult to solve it manually, even impossible when N is large.
The second step is to connect RB and RC, as shown in the figure below. Use the clamp meter to read the second data R2. The third step is to connect RC and RA, as shown in the figure below. Use the clamp meter to read the third data R3. In the above three steps, the readings measured in each step are the series value of two grounding resistances.
XIII． Accessories Meter 1 pcs Test line 4 pcs Simple test line 2 pcs USB communication line 1 pcs Monitoring software CD 1 pcs Instructions, warranty 1 set Instrument box 1 pcs - 17 -
The content of this user manual cannot be used as a reason for using the product for special purposes. The company is not responsible for other losses caused by use. The company reserves the right to modify the contents of the user manual. If there are changes, no further notice will be given.
