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Содержание 850A

Страница 1: ......

Страница 2: ...TABLE OF CONTENTS 1 Ation safety inform safety symbols 1 6 2 Specifications 6 17 3 Operation 17 20 4 Battery replacement 20 21 5 Maintenance 21 ...

Страница 3: ...Y shall be made aware that if the instrument is used in a manner not specified by the manufacturer the protection provided by the instrument may be impaired The finger or any part of your body shall not be beyond the barrier of the test probe when measuring Individual protective equipment must be used if HAZARDOUS LIVE parts in the installation where measurement is to be carried out could be ACCES...

Страница 4: ...s manual 1 5 Exercise extreme caution when measuring live system with voltage greater than 60V DC or 30V AC 1 6 Keep the fingers after the protection ring when measuring through the clamp 1 7 Change the battery when the symbol appears to avoid incorrect data 1 8 Use the DMM indoor altitude up to 2000m and temperature 5 C to 40 C Maximum relative humidity 80 for temperatures up to 31 C decreasing l...

Страница 5: ...Diode Freq Temp and Cap Measurement and square wave output terminal Table 1 Terminals Figure1 terminal Rotary switch Position of Rotary switch Function 400A DC AC Ampere current 2000A DC AC Ampere current V DC AC voltage mV DC AC millivolts Hz Duty cycle Frequency Ω Resistance Diode continuity Capacitance Temperature ...

Страница 6: ...unctions Figure2 Rotary switch Push button Figure3 Push button 1 REL Pressing this button the meter enters relative measuring mode REL is displayed on the LCD and the present reading becomes the reference value and displayed on the secondary ...

Страница 7: ...he backlight on look the Selector Knob more clearly pressing it again turns it off 2 SELECT Press this button to select your measurement mode 3 Hz Duty Pressing the button display the Duty Cycle pressing it again display frequency 4 MAX MIN Pressing this button the meter enters the dynamic record mode In the dynamic record mode pressing this button again cycles MAX MIN AVG MAX MIN and Present Read...

Страница 8: ...ay 6000 Counts LCD with a max reading of 6000 Range control Auto range Manual range control Polarity Automatic negative polarity indication Zero adjustment Automatic Over range indication The OL or OL display Low battery indication Display sign Data hold Display HOLD sign Relative measurement Display sign Bar graph display Bar graph display Clamp opening size 55mm Auto Power Off When measurement e...

Страница 9: ... 7 1 Display LCD Dual Display facilitates reads the data ...

Страница 10: ... 8 2 Clamp Light easy for test the electric current in hidden place ...

Страница 11: ... 9 3 Leads Cramp in the Clamp easy for fixed one Lead when you need test two separation vertices ...

Страница 12: ... 10 4 Magnet in the meter back for fixed instruments on metal shelves Measured convenient operation ...

Страница 13: ...dangerous when distributing electrical wire with hands Safety standards EMC LVD CAT Ⅱ 1000V The meter is up to the standards of IEC1010 Double Insulation Pollution Degree2 Overvoltage Category Ⅲ Operating environment Temperature 32 to104 F 0 C to 40 C ...

Страница 14: ... 1 DC Voltage Range Accuracy Resolution 60mV 0 8 of rdg 10digits 0 01mV 600mV 0 5 of rdg 15 digits 0 1mV 6V 1mV 60V 10mV 600V 100mV 1000V 0 8 of rdg 10 digits 1V Overload protection 1000V DC or 750V AC rms Impedance 10MΩ 2 2 2 AC Voltage AVC only850B 850C Range Accuracy Resolution 60mV 2 0 of rdg 10 digits 0 01mV 600mV 0 1mV 6V 1mV 60V 1 5 of rdg 10 digits 10mV 600V 100mV 750V 2 0 of rdg 10 digits...

Страница 15: ...gits 3 5 of rdg 10 digits 4 5 of rdg 10 digits 50mV 600mV 0 1mV 1 2 of rdg 10 digits 1 5 of rdg 10 digits 2 of rdg 10 digits 3 5 of rdg 10 digits 4 5 of rdg 10 digits 500mV 6V 1mV 50Hz 1KHz 3 0 of rdg 15 digits 1V 60V 10mV 50Hz 400Hz 1 5 of rdg 10 digits 1V 600 V 100mV 1V 750 V 1V 1V Average sensing calibrated to rms of sine wave Overload protection 1000V DC or 750V AC rms Impedance 10MΩ ...

Страница 16: ...solution 400A 3 5 of rdg 10 digits 0 1A 2000A 0 1000 4 0 of rdg 20 digits 1A 1000 2000 5 5 of rdg 30 digits 1A Frequency 40 100Hz Overload protection 2000A DC or AC rms 2 2 6 AC Current True RMS only850A Range Accuracy Resolution 50 500Hz 500 1KHz 400A 3 5 of rdg 25 digits 3 5 of rdg 35 digits 0 1A 2000 A 0 1000 4 0 of rdg 30 digits 4 0 of rdg 40 digits 1A 1000 200 0 5 5 of rdg 40 digits 5 5 of rd...

Страница 17: ...of rdg 15 digits 10kΩ Overload protection 250V DC or AC rms 2 2 8 Capacitance Range Accuracy Resolution 40nF 5 0 of rdg 10digits 10pF 400nF 2 5 of rdg 5digits 100pF 4µF 1nF 40µF 5 0 of rdg 10digits 10nF 400µF 20 0 of rdg 20digits 100nF 4000µF 1µF Overload protection 250V DC or AC rms 2 2 9 Diode and Audible continuity test ...

Страница 18: ...istance is less than 100Ω Open circuit voltage approx 0 5V Overload protection 250V DC or AC rms 2 2 10 Frequency Range Accuracy Resolution 10Hz 0 5 of rdg 5 digits 0 01Hz 100Hz 0 1Hz 1000Hz 1Hz 10kHz 10Hz 100kHz 100Hz 1000kHz 1kHz 10MHz 10kHz Sensitivity Range of input voltage 1 5V 10V If input voltage over range need adjust Overload protection 250V DC or AC rms 2 2 11 Duty cycle ...

Страница 19: ...d protection 36V DC or AC rms 3 OPERATION 3 1 DC and AC Voltage Measurement 1 Connect the black test lead to COM socket and red test lead to the VΩHz socket 2 Set the selector switch to desired mV or V position 3 Press SELECT key to choose DC or AC measurement 4 Measure the voltage by touch the test lead tips to the test circuit where the value of voltage is needed 5 Read the result from the LCD p...

Страница 20: ...ct the test leads from the Meter 4 Clamp the Jaws around the one conductor to be measured Center the conductor within the Jaw using the Centering Marks as guides 5 Read the result from the LCD panel 3 4 Resistance Measurement 1 Connect the black test lead to COM socket and red test lead to the VΩHz socket 2 Set the selector switch to desired position 3 Press SELECT key to choose Resistance measure...

Страница 21: ...st lead to the VΩHz socket 2 Set the selector switch to desired position 3 Press SELECT key to choose Diode or Audible continuity measurement 4 Connect the test leads across the diode under measurement display shows the approx forward voltage of this diode 5 Connect the test leads to two point of circuit if the resistance is lower than approx 100Ω the buzzer sounds Note Make sure the power is cut ...

Страница 22: ...ll appear on the display press it over 2 seconds to exit 3 11 Back Light On any range press the D HOLD key over 2 seconds to light the back light press it again for more than 2 seconds to wink the light The light can wink automatically after 10 seconds too 3 12 Relative measurement Press the REL key you can measure the relative value and sign will appears on the display the auto range mode be chan...

Страница 23: ... battery door is closed 2 To avoid contamination or static damage do not touch the circuit board without proper static protection 3 If the meter is not going to be used for a long time take out the battery and do not store the meter in high temperature or high humidity environment 4 When take current measurement keep the cable at the center of the clamp will get more accurate test result 5 Repairs...

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