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IM CL235

 iii

 

CAUTION 

  Always make sure to insert each plug of the test leads fully into the appro-

priate terminal on the instrument. 

  Make sure to remove the test leads from the instrument before making 

current measurement. 

  Be sure to set the Function Selector switch to the "OFF" position after use. 

When the instrument will not be in use for a long period of time, Place it in 
storage after removing the battery. 

  Use a damp cloth and detergent for cleaning the instrument. Do not use 

abrasives or solvents. 

 

NOTE 

  Radiation immunity affects the accuracy of CL235 testers under the condi-

tions specified in IEC801-3:1993. 

  If equipment generating strong electromagnetic interference is located 

nearly, the testers may malfunction. 

 

 

IM CL235

 

i

 

 

Summary of Contents for CL235

Page 1: ... Indicates that there is a possibility of serious personal injury of damage to the instrument if the operating procedure is not followed correctly and describes the precautions for avoiding such injury or damage NOTE Draws attention to information essential for understanding the op eration and features ii IM CL235 WARNING Never make measurement on a circuit above 600V AC or 600V DC Do not use the ...

Page 2: ...h to the OFF position after use When the instrument will not be in use for a long period of time Place it in storage after removing the battery Use a damp cloth and detergent for cleaning the instrument Do not use abrasives or solvents NOTE Radiation immunity affects the accuracy of CL235 testers under the condi tions specified in IEC801 3 1993 If equipment generating strong electromagnetic interf...

Page 3: ...t WARNING Do not make measurement on a circuit above 600VDC This may cause shock hazard or damage to the instrument or equipment under test Do not make measurement with the test leads plugged into the instrument Correct Wrong 1 Set the Function Selector switch to the A position DC should be shown on the upper left corner of the display 2 With the transformer jaws closed and without clamping them o...

Page 4: ... LCD display 3 With the tip of the test leads shorted together press the button to offset the resistance of the test leads 4 Press the button once to enter from the normal mode to the conti nuity check mode should be indicated on the display 5 Connect the tip of the test leads to the circuit under test If the resistance is 20Ω or less the buzzer beeps 2 8 Frequency Measurement On ACA or ACV range ...

Page 5: ...witched from the normal 3 times sec to 2 times sec to reduce fluctuation of the reading LoHz is also indicated where input is 3 of full scale or less 3 4 Optional Accessories Clamp Adapter Model 99025 For AC current measurement only Clamp Adapter Model 99025 is designed to increase the measuring capability of a clamp meter With the use of the Clamp Adapter you can not only extend current range ove...

Page 6: ... The scales are however actually calibrated in terms of the effective value of a sine wave though the clamp meter is responding to the average value The calibration is done with a conversion factor of 1 111 for sine wave which is found by dividing the effective value by the average value These instruments are therefore in error if the input voltage or current has some other shape than sine wave Wa...

Page 7: ...r still fails to operate correctly and needs repair con tact the vendor from whom you purchased the instrument or the nearest Yokogawa M C sales office Turn off the POWER switch once then turn it back on again If the tester does not turn on replace the battery with a new one Calibration It is recommended that the instrument be calibrated once every year ...

Page 8: ...IA PTY LTD AUSTRALIA Phone 61 2 9805 0699 Facsimile 61 2 9888 1844 YOKOGAWA BLUE STAR LTD INDIA Phone 91 80 227 1513 Facsimile 91 80 227 4270 LTD YOKOGAWA ELECTRIC RUSSIAN FEDERATION Phone 7 095 737 7868 Facsimile 7 095 737 7869 計 測 機 器 営 業 部 180 8750 東京都武蔵野市中町 2 9 32 電話 0422 52 5984 ファクシミリ 0422 55 8953 関 西 支 店 564 0063 大阪府吹田市江坂町 1 23 101 大同生命江坂ビル 10 階 電話 06 6368 7041 ファクシミリ 06 6368 7045 中 部 支 店 4...

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