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Mastech MS2301, Руководство пользователя

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MS2301

USERS MANUAL

EARTH RESISTANCE CLAMP

Содержание MS2301

Страница 1: ...MS2301 USERS MANUAL EARTH RESISTANCE CLAMP ...

Страница 2: ... DISPLAY OPERATION ON OFF OPERATION EARTH RESISTANCE MEASUREMENT CURRENT MEASUREMENT HOLD BUTTON ALARM OPERATION MEMORY FUNCTION SPECIAL FUNCTION SPECIFICATION FEATURES ACCESSORY CHANGING THE BATTERIES CHARGE THE BATTERIES APPLICATION FIELD 1 1 2 2 3 3 4 6 7 10 11 11 12 13 15 15 16 16 17 18 ...

Страница 3: ......

Страница 4: ...TCH BUZZER ON OFF SET ALARM VALUE AUTO POWER OFF FUNCTION SET READ SAVED MEASUREMENT VALUE RESET MEMORY TO ZERO HOLD MEM HOLD AL MEM A Ω MEM HOLD Ω AL LCD Display Note when switch on the clamp performs a rapid auto test of the whole display All the symbol on the LCD are display for this short time 6 7 8 9 Layout 1 Clamp jaw 2 Trigger 3 MEM Button 4 Button ON OFF BUTTON 5 LCD Display 6 AL Button 7 ...

Страница 5: ...ndication symbol 16 Auto Power Off symbol 17 Record number symbol 18 Read memory mode symbol 19 save in memory mode symbol 20 4 digit LCD digital display Operation 1 ON OFF Operation button switches ON OFF Press button so the clamp switch on Press the button for 2 seconds the instrument switch off As soon as it switch on the earth resistance clamp begins to auto calibrate to obtain batter resoluti...

Страница 6: ... the trigger of the instrument several times to close the clamp jaw correctly After the symbol disappears from the display then it is in the normal measurement mode 4 Read the measurement value on the display 5 When the display appears the NOISE symbol it indicates that there is an interference current in the loop the resistance measurement is not assured 6 Schematic of measurement Buzzer ON A loo...

Страница 7: ...2Ω the value is not guaranteed The batteries service life is 86 Buzzer ON A loop earth resistance of 93 7Ω The batteries service life is 18 and less than 20 The display appears the low voltage indication Auto Power Off function is valid 55 recorded values in the memory Buzzer ON A loop earth resistance of 19 6Ω The earth resistance value is less than the high alarm threshold value 30Ω no beep is e...

Страница 8: ...E when signals measurement below the alarm threshold a continuous beep at low frequency The symbol is displayed HIGH ALARM MODE when signals measurement belowthe alarm threshold a continuous beep at high frequency The symbol is displayed NO ALARM MODE signals measurement is not confined in alarm threshold 3 Set the alarm threshold The earth resistance clamp set initial Alarm threshold value is hig...

Страница 9: ...ars from the display the buzzer be switched off and beep function of pressing button or Alarm function is invalid press the Ω to switch on the buzzer again 2 ON OFF Auto Power Off function Press HOLD button the LCD display P symbol the Auto Power Off function switch on After no operation for 5 minutes the instrument switch off automatically Press HOLD again then the P symbol disappears from the di...

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Страница 11: ... for example no only earth resistance of electric power transportation conductors and communication circuitry but also earth resistance of electric equipment and lightning arrester can be tested When there is a interference current in the grounding loop the accuracy of resistance measurement is affected the interference current can be tested by the earth resistance clamp Principle of mearsurement ...

Страница 12: ...ircuitry works by iron tower The earth system of iron tower connect with lightning rod of iron tower so iron tower that needn t tested becomes very well supplementary electrode This is a great progress that is breakthrough from traditional tester which throwed into supplementary electrode on the road 2 Electric power maintain of the factory Usually the factory is divide into several different eart...

Страница 13: ...sting earth resistance of oil trough The oil trough often has over two earth electrode Note When the oil trough has itself earth conductor it very becomes short circuit the user can make measurement by other oil trough being supplementary electrode 6 Testing earth resistance of lightning rod When lightning rod only use one earth conductor and earth electrode you can apply other earth object being ...

Страница 14: ...esistance to prevent static electricity Apply earth electrode of oil trough to be supplementary electrode to test earth resistance of gas station That the tested result is maybe sum for earth resistance of gas station and earth resistance of oil trough in series is noticeable HYS006719 ...

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