Harbor Freight Tools CEN-TECH 41080 Operator'S Instruction Manual Download Page 11

If “

”appears on display, it indicates that the battery should be replaced. Use the 

following procedure to replacing the battery: 

1.  Disconnect  test  leads  from  any  live  source,  turn  the  rotary  switch  to  OFF,  and 

remove the test leads from the input terminals. 

2.  The battery cover is secured to the bottom case by a screw. Using a screwdriver, 

remove the screw from the battery cover and remove the battery cover. 

3.  Remove battery and replace with a new equivalent 9 volt battery. 

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 r 6 digits). 

 

The Clamp is used only for reading AC amperages between the receptacle and 

power  cord.  The  Clamp  must  be  used  with  a  Line  Splitter  to  do  this.    Line 

Splitters can be purchased at an electrical supply outlet. 

 

NOTE: 

Line Splitter, Item 92072 is available from Harbor Freight Tools.

 

 
 
 
 
 
 
 

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Summary of Contents for CEN-TECH 41080

Page 1: ......

Page 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 ...

Page 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 ...

Page 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...

Page 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...

Page 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 ...

Page 7: ...CLAMP METER LAYOUT 5 ...

Page 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...

Page 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 ...

Page 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 ...

Page 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...

Page 12: ......

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