Harbor Freight Tools CEN-TECH 41080 Скачать руководство пользователя страница 4

 

 
 
 

 

 
 
 

 

 

 

 
 
 

 

 

 

 

 

Read  these  operating  instructions  thoroughly  and  completely  before 

operating  your  meter.  Pay  particular  attention  to  WARNINGS,  which 

will inform you of potentially dangerous procedures. The instructions in 

these warnings must be followed. 

Always  inspect  your  meter  and  test  leads  for  any  sign  of  damage  or 

abnormality  before  every  use.  If  any  abnormal  conditions  exist  (i.e. 

broken  test  leads,  cracked  cases,  display  not  reading,  etc.),  do  not 

attempt to take any measurements. 

Do  not  expose  the  instrument  to  direct  sunlight,  extreme  temperature 

or moisture. 

Never  ground  yourself  when  taking  electrical  measurements.  Do  not 

touch  exposed  metal  pipes,  outlets,  fixtures,  etc.,  which  might  be  at 

ground  potential.  Keep  your  body  isolated  from  ground  by  using  dry 

clothing;  rubber  shoes,  rubber  mat,  or  any  approved  insulating 

material. 

You  always  are  careful  when  working  with  voltages  above  60V  dc  or 

30V ac rms. Keep fingers behind the probe barriers while measuring. 

Never  use  the  meter  to  measure  voltages  that  might  exceed  the 

maximum allowable input value of any function. 

Never  touch  exposed  wiring,  connections  or  any  live  circuit  when 

attempting to take measurements. 

 

MAINTENANCE 

 

 

 

 

 

 

 

 

Before  opening  the  case,  always  disconnect  test  leads  from  all 

energized circuits.   

Never  use  the  meter  unless  the  back  cover  is  in  place  and  fastened 

completely. 

Do  not  use  abrasives  or  solvents  on  the  meter.  To  clean  it  using  a 

damp cloth and mild detergent only.   

Qualified  and  trained  service  technicians  should  only  perform 

calibration and repair of the meter.   

 

-2- 

 

Содержание CEN-TECH 41080

Страница 1: ......

Страница 2: ...TS PAGE SAFETY INFORMATION SAFETY SYMBOLS SAFETY PRECAUTIONS MAINTENANCE GENERAL DESCRIPTION FRONT PANEL DESCRIPTION OPERATING INSTRUCTIONS SPECIFICATIONS REPLACING THE BATTERY ACCESSORIES 1 1 1 2 3 3 6 7 8 9 ...

Страница 3: ...f the following European Community Directives 89 336 EEC Electromagnetic Compatibility and 73 23 EEC Low Voltage as amended by 93 68 EEC CE Marking However electrical noise or intense electromagnetic fields in the vicinity of the equipment may disturb the measurement circuit Measuring instruments will also respond to unwanted signals that may be present within the measurement circuit Users should ...

Страница 4: ...hich might be at ground potential Keep your body isolated from ground by using dry clothing rubber shoes rubber mat or any approved insulating material You always are careful when working with voltages above 60V dc or 30V ac rms Keep fingers behind the probe barriers while measuring Never use the meter to measure voltages that might exceed the maximum allowable input value of any function Never to...

Страница 5: ...Rotary switch This switch is used to select functions and desired ranges as well as to turn on off the meter Back light To use this function press the Back light button When this button is pushed the Back light of display is on After about 3 5 seconds the Back light is self off The Back light is on again just push this button once Display 3 1 2 digit 7 segment 18mm high LCD V jack This is positive...

Страница 6: ...e function and range and press the MAX button When this is done the MAX annunciator will appear in the display Next by inputting a signal the MAX function operates This maximum value is held in digital memory for a long period To exit the MAX mode press the MAX button once again Trigger Press the lever to open the transformer When the lever is released the jaws will close again 4 ...

Страница 7: ...CLAMP METER LAYOUT 5 ...

Страница 8: ... LCD display RESISTANCE MEASUREMENT 1 2 3 4 Connect the red test lead to Ω jack and black test lead to the COM jack The polarity of red lead is positive Set the rotary switch at desired Ω range position Connect test leads across the resistor to be measured and read LCD display If the resistance being measured is connected to a circuit turn off power and discharge all capacitors before applying tes...

Страница 9: ... with relative humidity to 80 GENERAL Maximum voltage between terminals and earth ground CAT II 1000V dc or 750V ac rms sine Display LCD 1999 counts updates 2 3 sec Polarity indication displayed for negative polarity Overrange Indication Only figure OL on the display Jaw opening capability 55mm Max conductor size Power 9V battery NEDA 1604 or IEC 6F22 Low battery indication appears on the display ...

Страница 10: ...uency range 50Hz to 60Hz RESISTANCE Range Resolution Accuracy 200Ω 0 1Ω 1 0 of rdg 3 digits 20kΩ 10Ω 1 5 of rdg 5 digits 20MΩ 10kΩ 1 5 of rdg 5 digits 2000MΩ 1MΩ 5 0 of rdg 10 10 digits CONTINUITY Range Description If continuity exists about less than 30Ω built in buzzer will sound REPLACING THE BATTERY WARNING Before attempting to open the case of battery always be sure that test leads have been ...

Страница 11: ...attery 4 Replace the battery cover and reinstall the screw ACCESSORIES Operator s instruction manual Set of test leads Gift box 9 volt battery NEDA 1604 6F22 006P type CAUTION Using this appliance in an environment with a strong radiated radio frequency electromagnetic field approximately 3V m may influence its measuring accuracy The accuracy can be reduced to 12 of reading 6 digits The Clamp is u...

Страница 12: ......

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