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Summary of Contents for HTC CE8200
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Page 3: Table Of Contents
Content I. Safety rules and precautions ............3 II. Introduction ................5 III. Model parameters ..............6 IV. Range and Accuracy ..............6 V. Technical Specifications ............. 8 VI. Instrument structure ..............10 VII. LCD ..................11 VIII. Principle of Resistance Measurement ........13 IX.Operation ................. -
Page 4: Safety Rules And Precautions
I. Safety rules and precautions Thank you for purchasing our company's clamp-on grounding resistance tester. Before you use the instrument for the first time, in order to avoid possible electric shock or personal injury, please be sure to: read carefully and strictly abide by the safety rules and precautions listed in this manual . - Page 5 explosion. ♦When the machine is turned on, do not hold the trigger or clamp any wires. ♦The object to be measured can only be clamped after the “OL Ω” symbol is displayed after it is turned on normally. ♦ Do not place and store the meter for a long time in places with high temperature and humidity, condensation and direct sunlight.
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Page 6: Introduction
environment specified by this instrument. ♦The current of the measuring lead should not exceed the upper limit of the clamp meter. ♦The use, disassembly, calibration and maintenance of this instrument must be operated by authorized personnel. ♦Due to the reasons of this instrument, if it is dangerous to continue using it, you should stop using it immediately and seal it up immediately. -
Page 7: Model Parameters
It uses fast filtering techniques to minimize interference. Simultaneous data storage and data upload functions. III. Model parameters Model Resistance Range Current Range CE8200 0-1000Ω CE8202 0-1200Ω 0.00mA-20A CE8203 0-200Ω IV. Range and Accuracy... - Page 8 Ω） ±（1%＋0.01 0.10Ω-0.99Ω 0.01Ω Ω） 1.0Ω-49.9Ω 0.1Ω ±（1%＋0.1Ω） ±（1.5%＋0.5 50.0Ω-99.5Ω 0.5Ω Resistance Ω） 100Ω-199Ω 1Ω ±（2%＋1Ω） 200Ω-395Ω 5Ω ±（5%＋5Ω） 400-590Ω 10Ω ± （10%＋10Ω） 600Ω-880Ω 20Ω ± （20%＋20Ω） 900Ω-1200Ω 30Ω ± （25%＋30Ω） ±（2.5%＋ 0.00mA -9.95mA 0.01mA 1mA） ±（2.5%＋ 10.0mA -99.0mA 0.1mA 5mA）...
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Page 9: Technical Specifications
V. Technical Specifications Function Ground resistance test, loop resistance test, leakage current test Ambient Temperature 23℃±5℃, below 75%rh and Humidity Power Supply DC 6V (4 AA dry batteries) Measurement Method mutual inductance Resistor Resolution 0.001Ω *Current resolution 0.01mA Jaw size 55mm×32mm *Ω... - Page 10 Data Access "MR" symbol indication when viewing data Overflow Display "OL" symbol indication when overrange overflow Interference Test Automatically identify interference signals, and the "NOISE" symbol indicates when the interference current is large Alarm Function When the measured value exceeds the alarm setting value, an alarm prompt will be issued Battery Voltage...
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Page 11: Instrument Structure
Insulation resistance Above 20MΩ (500V between circuit and case) Pressure resistance AC 3700V/rms (between circuit and case) ＜40A/m External Magnetic Field ＜1V/m External Electric Field Suitable for safety IEC61010-1 (CAT III 300V, CAT IV regulations 150V, pollution degree 2); IEC61010-031; IEC61557-1 (grounding resistance);... -
Page 12: Lcd
10. Check loop 1Ω loop 11. Check loop 10Ω loop VII. LCD 1. Clamp head open symbol 2. Alarm indication symbol 3.Greater than symbol 4. AC and DC indication symbols 5. Data access symbols 6. Data storage symbols 7. Noise indicator symbol 8. - Page 13 ⑵.“Er” is the error symbol when starting up, it is possible that the trigger was pressed or the jaws were opened when starting up. Low battery voltage symbol, when the battery ⑶. voltage is lower than 5.0V, this symbol displays, the measurement accuracy cannot be guaranteed at this time, and the battery should be replaced.
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Page 14: Principle Of Resistance Measurement
large interference current, this symbol flashes and displays, and the instrument emits a "beep-beep-beep--" prompt sound. The accuracy of the test cannot be guaranteed at this time. VIII. Principle of Resistance Measurement The basic principle of the clamp-type grounding resistance tester to measure the grounding resistance is to measure the loop resistance. -
Page 15: Ix.operation
IX.Operation 1. Switch Machine When starting up, do not depress the trigger, open the jaws, or clamp any wires. After the boot is completed and "OL Ω" is displayed, the trigger can be pulled, the jaws are opened, and the conductor under test can be clamped. Before starting the machine, squeeze the trigger once or twice to make sure the jaws are well closed. -
Page 16: Battery Voltage Check
Before the automatic shutdown, the meter will flash for 30 seconds. Pressing the power button again will delay the on-off time for 5 minutes. 2.Battery Voltage Check After power on, if the LCD displays the low battery voltage symbol “ ”, it means the battery is low, please replace the battery. -
Page 17: Alarm System
The large number in the middle shows "OLΩ", indicating that the measured resistance exceeds the upper limit of the clamp meter. The large number in the middle shows "L0.01Ω", which means that the measured resistance exceeds the lower limit of the clamp meter. -
Page 18: Data Lock
current, and voltage alarm values, change the current number by pressing the "AL" key and "MEM" key, and short press the " MODE" key to switch the alarm mode, then long press the "SET" key to save and exit. When the measured resistance value is greater than the alarm critical set value and the alarm function is turned on, the meter flashes the "... -
Page 19: X.battery Description
flashes the "MEM" symbol. Take the interface "MR" symbol display. Press the "AL" or "SET" key to select the data corresponding to the array number with a step value of 1, and then short press the "MEM" key to exit the search. See the picture below, the left picture is the flashing “MEM”... - Page 20 ground wires (the shielding layer of communication cables) to form a grounding system. See below. When measured with a clamp meter, its equivalent circuit is as follows: Where: R1 is the predicted ground resistance. R0 is the equivalent resistance of the grounding resistances of all other towers in parallel.
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Page 21: Limited Point Grounding System
2.Limited Point Grounding System This situation is also more common. For example, in some towers, five towers are connected to each other through overhead ground wires; for example, the grounding of some buildings is not an independent grounding network, but several grounding bodies are connected to each other through wires. -
Page 22: Single Point Grounding System
R1T, R2T, ... RNT are the resistances measured by the clamp meter in each grounding branch. This is a nonlinear system of equations with N unknowns, N equations. It has a definite solution, but it is very difficult to solve it manually, and it is even impossible when N is large. To this end, please purchase our company's finite-point grounding system solution program software, and users can use an office computer or a laptop computer to perform the machine... - Page 23 the grounding system to artificially create a loop for testing. The following introduces two methods for measuring single-point grounding with a clamp meter. This method can be applied to the occasions that cannot be tested by the traditional voltage-current method. ⑴.
- Page 24 connecting the end of the test lead to the end. Therefore, if the measured value of the clamp meter is less than the allowable value of the grounding resistance, then the grounding resistances of the two grounding bodies are qualified. ⑵.
- Page 25 figure below. Use the clamp meter to read the third data R3. In the above three steps, the reading measured in each step is the series value of the two grounding resistances. In this way, each ground resistance value can be easily calculated: Since: R1=RA+RB R2=RB+RC R3=RC+RA So: RA=(R1+R3-R2)÷2 This is the ground resistance value of the ground body RA.
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Page 26: Xii.packing List
XII.Packing List Meter Battery Number 5 dry battery with 4 sections Check Ring Manual, Warranty 1 set Instrument box... - Page 28 The company is not responsible for other losses caused by use. The company reserves the right to modify the contents of the user manual. Subject to modification without further notice. HTC INSTRUMENTS www.htcinstrument.com...
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