HTC CE8200 Скачать руководство пользователя страница 27

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Содержание CE8200

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Страница 3: ...ciple of Resistance Measurement 13 IX Operation 14 1 Switch Machine 14 2 Battery Voltage Check 15 3 Resistance current or ground voltage test 15 4 Alarm system 16 5 Data Lock 17 6 Data storage review...

Страница 4: ...instrument The instrument is designed produced and inspected according to IEC61010 safety specifications In any case pay special attention to safety when using this instrument During measurement do n...

Страница 5: ...sure that the meter is turned off The meter displays the low battery voltage symbol the battery should be replaced in time otherwise it will lead to ground error The contact surface of the jaws must...

Страница 6: ...sign in the instrument and manual the user must strictly follow the instructions in this manual for safe operation II Introduction Clamp ground resistance tester also known as loop resistance tester i...

Страница 7: ...eteorology computer room oil field power distribution lines tower transmission lines gas stations factory grounding grids lightning rods etc The clamp ground resistance tester is controlled by a micro...

Страница 8: ...1 200 395 5 5 5 400 590 10 10 10 600 880 20 20 20 900 1200 30 25 30 Current 0 00mA 9 95mA 0 01mA 2 5 1mA 10 0mA 99 0mA 0 1mA 2 5 5mA 100mA 300mA 1mA 2 5 10mA 0 30A 2 99A 0 01A 2 5 0 1A 3 0A 9 9A 0 1A...

Страница 9: ...od mutual inductance Resistor Resolution 0 001 Current resolution 0 01mA Jaw size 55mm 32mm A sync display A sync display Ground voltage measurement function None Display Mode 4 digit LCD display blac...

Страница 10: ...Alarm Function When the measured value exceeds the alarm setting value an alarm prompt will be issued Battery Voltage Real time display of battery power reminding to charge in time when the battery v...

Страница 11: ...al Electric Field 1V m Suitable for safety regulations IEC61010 1 CAT III 300V CAT IV 150V pollution degree 2 IEC61010 031 IEC61557 1 grounding resistance Only available for instruments with current f...

Страница 12: ...ator symbol 8 Data lock symbol 9 Battery level indicator 10 Unit indication 11 Four digit resistance data 12 Unit indication 13 Number of storage groups 14 Four digits indicate current Description of...

Страница 13: ...meter The L0 01 symbol indicates that the measured resistance exceeds the lower limit of the clamp meter OL A symbol indicating that the measured current exceeds the upper limit of the clamp meter Ala...

Страница 14: ...istance tester to measure the grounding resistance is to measure the loop resistance See below clamp meter The mouth part is composed of a voltage coil and a current coil The voltage coil provides the...

Страница 15: ...not turn the clamp meter over and do not apply external force to the jaws otherwise the measurement accuracy cannot be guaranteed Press the power button to switch the machine on and off The meter auto...

Страница 16: ...user thinks that the grounded value is not in line with the normal you can use the random calibration ring to check whether the clamp meter is normal The check loop has two resistance values of 1 and...

Страница 17: ...resistance current mode the lower right of the display shows the current value such as 0 00mA if you need to measure the current switch to this mode to read the current value directly Resistance Curr...

Страница 18: ...bol and emits an alarm sound of beep beep beep The maximum value of the ground resistance alarm setting is 200 As shown below 5 Data Lock After the measurement is stable after power on short press the...

Страница 19: ...the data review mode and the current reference group number is 1 In the data review state long press the MEM button then press the Power button button to delete the stored data X Battery Description W...

Страница 20: ...0 is not a parallel value in the usual electrotechnical sense it will be slightly larger than the parallel value in the electrotechnical sense but since the grounding hemisphere of each tower is much...

Страница 21: ...wires In this case if the R0 in the above figure is regarded as 0 it will bring a large error to the measurement result For the same reason as above we ignore the influence of mutual resistance and ca...

Страница 22: ...ne solution In principle in addition to ignoring mutual resistance this method does not have the measurement error caused by ignoring R0 However users need to pay attention to this in your grounding s...

Страница 23: ...e below find an independent grounding body RB such as a nearby water pipe building etc near the grounding body RA to be tested Connect RA and RB with a test lead Because the resistance value measured...

Страница 24: ...ified Three Point Method As shown in the figure below find two independent grounding bodies RB and RC near the measured grounding body RA The first step is to connect RA and RB with a test lead see th...

Страница 25: ...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 In order to facilitate the memorization of the above formula the three grounding bodies can be regar...

Страница 26: ...25 XII Packing List Meter 1pc Battery Number 5 dry battery with 4 sections Check Ring 1pc Manual Warranty 1 set Instrument box 1pc...

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Страница 28: ...on to use the product for a special purpose 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 modificati...