CEM 9915 Operating Instruction Download | Manualshive

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10A

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mA

V

Ω

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REL

AC

Hz%

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AUTO

Hz%

kM

F

C

OPERATING INSTRUCTION

AUTORANGING

DIGITAL MULTIMETE

MODEL 9915

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Summary of Contents for 9915

Page 1: ...10A A mA V Ω ã ã μ REL AC Hz DC AUTO Hz kM F C OPERATING INSTRUCTION AUTORANGING DIGITAL MULTIMETE MODEL 9915 ...

Page 2: ...our body isolated from ground by using dry clothing rubber shoes rubber mats or any approved insulating material Turn off power to the circuit under test before cutting unsoldering or breaking the circuit Small amounts of current can be dangerous Use caution when working above 60V dc or 30V ac rms such voltages pose a shock hazard When using the probes keep your fingers behind the finger guards on...

Page 3: ...rdous situation which if not avoided could result in death or serious 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 connected to a circuit point at which the voltage with respect to earth ground exceeds in this case 1000 VAC or VDC This symbol adjace...

Page 4: ...AC Hz DC AUTO Hz kM F C 5 hazardous voltages For maximum safety the meter and its test leads should not be handled when these terminals are energized CONTROLS AND JACKS 1 Large 4000 count Liquid Crystal Display with symbolic signs 2 Range pushbutton ...

Page 5: ...0A positive input jack for 10 uA mA input jack 11 Positive input jack for DC AC Voltage Hz duty cycle Ohms Diode Continuity Capacitance measurements 12 COM negative input jack SYMBOLS AND ANNUNCIATORS Continuity BAT Low Battery Diode DATA HOLD Data Hold AUTO AutoRanging AC Alternating Current or Voltage DC Direct Current or Voltage ...

Page 6: ...cation The BAT is displayed when the battery voltage drops below the operating level Measurement rate 2 times per second nominal Auto power off Meter automatically shuts down after approx 15 minutes of inactivity Operating environment 0 oC to 50 oC 32 oF to 122 oF at 70 relative humidity Storage temperature 20 oC to 60 oC 4 oF to 140 oF at 80 relative humidity For inside use max height 2000m Pollu...

Page 7: ... 40 00V 10mV 400 0V 100mV 1000V 1V 1 5 of rdg 2 dgts Input Impedance 7 8MΩ Maximum Input 1000V dc or1000V ac rms AC Voltage Auto ranging except 400mV Range Resoluti on Accuracy 400 0mV 0 1mV 1 5 of rdg 70 dgts 4 000V 1mV 1 2 of rdg 3 dgts 40 00V 10mV 1 5 of rdg 3 dgts 400 0V 100mV 1000V 1V 2 0 of rdg 4 dgts Input Impedance 7 8MΩ AC Response 50 Hz to 400 Hz Maximum Input 1000V dc or 1000V ac rms ...

Page 8: ...e Maximum Input 400mA dc or 400mA ac rms on uA mA ranges 10A dc or ac rms on 10A range AC Current Auto ranging for uA and mA Range Resolution Accuracy 400 0uA 0 1uA 1 5 of rdg 5 dgts 4000uA 1uA 1 8 of rdg 5 dgts 40 00mA 10uA 400 0mA 100uA 10A 10mA 3 0 of rdg 7 dgts Overload Protection 0 5A 1000V and 10A 1000V Fuse AC Response 50 Hz to 400 Hz Maximum Input 400mA dc or 400mA ac rms on uA mA ranges 1...

Page 9: ...citance Auto ranging Range Resolution Accuracy 4 000nF 1pF 5 0 of rdg 20 dgts 40 00nF 10pF 5 0 of rdg 7 dgts 400 0nF 0 1nF 3 0 of rdg 5 dgts 4 000uF 1nF 40 00uF 10nF 200 0uF 0 1uF 5 0 of rdg 5 dgts Input Protection 600V dc or 600V ac rms Frequency Auto ranging Range Resolution Accuracy 9 999Hz 0 001Hz 1 5 of rdg 5 dgts 99 99Hz 0 01Hz 999 9Hz 0 1Hz 1 2 of rdg 3 dgts 9 999kHz 1Hz 99 99kHz 10Hz 999 9...

Page 10: ...ulse width 100us 100ms Frequency width 5Hz 150kHz Sensitivity 0 5V RMS Overload protection 600V dc or ac rms Diode Test Test current Resolution Accuracy 0 3mA typical 1 mV 10 of rdg 5 dgts Open circuit voltage 1 5V dc typical Overload protection 600V dc or ac rms Audible continuity Audible threshold Less than150Ω Test current 0 3mA Overload protection 600V dc or ac rms ...

Page 11: ...ave selected Change to a higher range NOTE On some low AC and DC voltage ranges with the test leads not connected to a device the display may show a random changing reading This is normal and is caused by the high input sensitivity The reading will stabilize and give a proper measurement when connected to a circuit MODE BUTTON To select Diode Continuity or DC AC current RANGE BUTTON When the meter...

Page 12: ...on it will turn off DATA HOLD BUTTON The Data Hold function allows the meter to freeze a measurement for later reference 1 Press the DATA HOLD button to freeze the reading on the indicator The indicator HOLD will be appear in the display 2 Press the DATA HOLD button to return to normal operation RELATIVE BUTTON The relative measurement feature allows you to make measurements relative to a stored r...

Page 13: ...s the display light ON 2 Press BACKLIGHT button again to exit the light mode Hz duty BUTTON Press Hz Duty Button to choose Frequency or Duty Cycle in the range of Frequency Press Hz Duty Button to measure Frequency or Duty Cycle while measures voltage or Current the Voltage Current requirement and range of Frequency see the following form press Hz Duty Button to return to measurement of Voltage or...

Page 14: ...t Be sure to observe the correct polarity red lead to positive black lead to negative 4 Read the voltage in the display The display will indicate the proper decimal point and value If the polarity is reversed the display will show minus before the value AC VOLTAGE MEASUREMENTS WARNING Risk of Electrocution The probe tips may not be long enough to contact the live parts inside some 240V outlets for...

Page 15: ...The display will indicate the proper decimal point value and symbol AC V etc DC CURRENT MEASUREMENTS CAUTION Do not make current measurements on the 10A scale for longer than 30 seconds Exceeding 30 seconds may cause damage to the meter and or the test leads 1 Insert the black test lead banana plug into the negative COM jack 2 For current measurements up to 4000µA DC set the function switch to the...

Page 16: ...cuit 9 Read the current in the display The display will indicate the proper decimal point value and symbol AC CURRENT MEASUREMENTS WARNING To avoid electric shock do not measure AC current on any circuit whose voltage exceeds 250V AC CAUTION Do not make current measurements on the 10A scale for longer than 30 seconds Exceeding 30 seconds may cause damage to the meter and or the test leads 1 Insert...

Page 17: ...AC DC button until AC appears in the display 6 Remove power from the circuit under test then open up the circuit at the point where you wish to measure current 7 Touch the black test probe tip to the negative side of the circuit And touch the red test probe tip to the positive side of the circuit 8 Apply power to the circuit Read the current in the display The display will indicate the proper deci...

Page 18: ... of the part under test so the rest of the circuit will not interfere with the resistance reading 4 Read the resistance in the display The 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 function switch to the position 2 Insert the black lead banana plu...

Page 19: ...ana plug into the positive jack Ω 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 position Note this reading 6 The diode or junction can be evaluated as follows A If one reading shows a value and the other reading shows OL the diode is good B If both readings show OL the device is open C If b...

Page 20: ...value CAPACITANCE MEASUREMENTS WARNING To avoid electric shock disconnect power to the unit under test and discharge all capacitors before taking any capacitance measurements Remove the batteries and unplug the line cords 1 Set the function switch to the CAP position nF and a small value will appear in the display 2 Insert the black test lead banana plug into the negative jack COM and the red test...

Page 21: ...n section of this manual 3 Dispose of the old battery properly WARNING To avoid electric shock do not operate your meter until the battery door is in place and fastened securely BATTERY INSTALLATION WARNING To avoid electric shock disconnect the test leads from any source of voltage before removing the battery door 1 Disconnect the test leads from the meter 2 Open the battery door by loosening the...

Page 22: ... fuse door 1 Disconnect the test leads from the meter and any item under test 2 Open the fuse door by loosening the screw on the door using a Phillips head screwdriver 3 Remove the old fuse from its holder by gently pulling it out 3 Install the new fuse into the holder 4 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 1 ...

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