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Содержание DT-9918T

Страница 1: ...1 V mA A 10A V 10A C F OPERATING INSTRUCTION TRUE RMS AUTORANGING DIGITAL MULTIMETER...

Страница 2: ...2...

Страница 3: ...bus bars To measure voltage the instrument must not be switched to a current or resistance range or to the diode check or buzzer position Circuits must be de energised and isolated before carrying out...

Страница 4: ...f it is damaged Warnings and precautions must be read and understood before an instrument is used They must be observed during the operation of this instrument Symbols used on this instrument are Caut...

Страница 5: ...s injury This CAUTION symbol indicates a potentially hazardous situation which if not avoided may result damage to the product This symbol advises the user that the terminal s so marked must not be co...

Страница 6: ...ith current EU directives SYMBOLS AND ANNUNCIATORS Continuity BAT Low Battery Diode test HOLD Data Hold AUTO AutoRanging AC Alternating Current or Voltage DC Direct Current or Voltage MAX MIN Stores t...

Страница 7: ...is meter has Auto OFF that automatically shuts the meter OFF if 30 minutes elapse between uses NOTE On some low AC and DC voltage ranges with the test leads not connected to a device the display may s...

Страница 8: ...button 1 Press the BACKLIGHT button to switch on the display light 2 Press BACKLIGHT button again to exit the light mode MAX MIN button The MAX MIN function allows the meter to capture the highest or...

Страница 9: ...the MODE button to select AC or DC 3 Allow time for the display to stabilize 4 Press and Hold the PEAK button until CAL appears in the display This procedure will zero the range selected 5 Press the P...

Страница 10: ...mode for most measurements For measurement situations requiring that a range be manually selected perform the following 1 Press the RANGE button The Auto Range display indicator will turn off The Manu...

Страница 11: ...t measurements up to 4000uA DC set the function switch to the uA position and insert the red test lead banana plug into the uA jack 3 For current measurements up to 400mA DC set the function switch to...

Страница 12: ...ert the black test lead plug into the negative COM socket 2 For current measurements up to 10A set the function switch to the A position and insert the red test lead plug into the 10A jack 3 For curre...

Страница 13: ...Apply power to the circuit 9 Read the current in the display The display will indicate the proper decimal point value and symbol RESISTANCE MEASUREMENT WARNING To avoid electric shock disconnect powe...

Страница 14: ...display will indicate the proper decimal point value and symbol CONTINUITY CHECK WARNING To avoid electric shock never measure continuity on circuits or wires that have voltage on them 1 Set the range...

Страница 15: ...MODE button until appears in the display 4 Touch the test probe tips to the diode or semiconductor junction you wish to test Note the meter reading 5 Reverse the probe polarity by switching probe pos...

Страница 16: ...ed test lead banana plug into the CAP positive jack 3 Touch the test probe tips across the part under test 4 Read the capacitance value in the display 5 The display will indicate the proper decimal po...

Страница 17: ...Read the frequency in the display The digital reading will indicate the proper decimal point symbols kHz MHz and value TEMPERATURE MEASUREMENT 1 Set the function switch to the Type K F or C position...

Страница 18: ...CATIII 1000V NOTE These meters meet CAT III and CAT IV IEC 61010 standards The IEC 61010 safety standard defines four overvoltage categories CAT I to IV based on the magnitude of danger from transien...

Страница 19: ...splay 4000 counts LCD display 21mm high Polarity Automatic negative polarity indication Over range OL mark indication Low battery indication A battery symbol is displayed when the battery voltage drop...

Страница 20: ...9V battery NEDA 1604 IEC 6F22 Dimensions 182 H x 82 W x55 D mm Weight Approx 375g Accuracy Accuracy is given at 18 oC to 28 oC 65 oF to 83 oF less than 70 RH DC Voltage Auto ranging Range Resolution A...

Страница 21: ...pedance 7 8M AC Response True RMS 50 Hz 60Hz Maximum Input 1000V dc or 1000V ac rms DC Current Auto ranging Range Resolution Accuracy 400 0uA 0 1uA 1 2 of rdg 3 digits 4000uA 1uA 40 00mA 10uA 400 0mA...

Страница 22: ...rotection 0 5A 1000V and 10A 1000V Fuse AC Response True RMS 50 Hz to 60 Hz Maximum Input 400uA ac rms on uA 400mA ac rms on mA 10A ac rms on 10A range Resistance Auto ranging Range Resolution Accurac...

Страница 23: ...00uF 10nF 400 0uF 0 1uF 4 000mF 0 001mF 10 of rdg 10 dgts 40 00mF 10 00mF Input Protection 1000V dc or 1000V ac rms Frequency Auto ranging Range Resolution Accuracy 4 000kHz 1Hz 1 2 of rdg 3 dgts 40...

Страница 24: ...or ac rms Diode Test Test current Resolution Accuracy 1mA typical Open MAX 3V 1 mV 10 of rdg 5 digits Open circuit voltage MAX 3V dc Overload protection 1000V dc or ac rms Audible continuity Audible t...

Страница 25: ...rning symbol will appear in the LCD display The battery should be replaced 2 Follow instructions for installing battery See the Battery Installation section of this manual 3 Dispose of the old battery...

Страница 26: ...the battery cover back in place Secure with the two screws NOTE If your meter does not work properly check the fuses and battery to make sure that they are still good and that they are properly inser...

Страница 27: ...nto the holder 5 Always use a fuse of the proper size and value 0 5A 1000V fast blow for the 400mA range 10A 1000V fast blow for the 10A range 6 Put the fuse door back in place Insert the screw and ti...

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