V&A M266 Series Скачать руководство пользователя страница 3

1. SAFETY INFORMATION 

  The meter is completely portable, LCD, 3 1/2 digit clamp meter with insulation test 
function (with option 500V insulation tester unit). It has been designed according to 
IEC61010 concerning electronic measuring instruments with an over-voltage category 
(CATIII) and pollution 2 and safety requirements for hand-held current clamps for electrical 
measurement and test. 
  Follow all safety and operating instructions to ensure that the meter is used safely and is 
kept in good operating condition. 

1.1  PRELIMINARY 

* When using this meter, the user must observe all normal safety rules concerning: 
  - Protection against the dangers of electronic current. 
  - Protection of the meter against misuse. 
* Full compliance with safety standards can be guaranteed only if used with test leads 
supplied. If necessary, they must be replaced with the same model or same electronic 
ratings. Measuring leads must be in good condition. 

1.2  DURING USE 

* Never exceed the protection limit values indicated in specifications for each range of 
measurement. 
* When the meter is linked to measurement circuit, do not touch unused terminals. 
* When the value scale to be measured is unknown beforehand, set the range selector at 
the highest position. 
* Before rotating the range selector to change function, disconnect test leads from the 
circuit under test. 
* When carrying out measurements on TV or switching power circuits, always remember 
that there may be high amplitude voltage pulses at test points which can damage the 
meter. 
* Never perform resistance measurements on live circuits.   
* Always be careful when working with voltage above 60V dc or 30V ac rms. Keep fingers 
behind the probe barriers while measuring. 
* When the jaw opening and to the conductor under test, your fingers must keep behind 
the barrier indicator .The barrier or tactile indicator shall warn the operator of the limit of 
safe access. 
* Never ground yourself when talking electrical measurement, 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, or any approved insulating 

Содержание M266 Series

Страница 1: ...HANDHELD DIGITAL CLAMP MULTIMETER M266 Series Users Manual ...

Страница 2: ...RING CURRENT 7 3 2 INSULATION TEST 7 3 3 MEASURING VOLTAGE 8 3 4 MEASURING RESISTANCE 8 3 5 TESTING DIODE 8 3 6 CONTINUITY TEST 8 3 7 MEASURING TEMPERATURE 8 3 8 MEASURING FREQUENCY 9 4 SPECIFICATIONS 9 4 1 GENERAL 9 4 2 AC CURRENT 10 4 3 INSULATION TEST 10 4 4 AC VOLTAGE 10 4 5 DC VOLTAGE 11 4 6 RESISTANCE 11 4 7 TEMPERATURE 11 4 8 FREQUENCY 11 5 ACCESSORIES 12 5 1 SUPPLIED WITH THE MULTIMETER 12...

Страница 3: ...ction limit values indicated in specifications for each range of measurement When the meter is linked to measurement circuit do not touch unused terminals When the value scale to be measured is unknown beforehand set the range selector at the highest position Before rotating the range selector to change function disconnect test leads from the circuit under test When carrying out measurements on TV...

Страница 4: ...nd Double insulation Protection class II 1 4 MAINTENANCE Before opening the meter always disconnect test leads from all sources of electric current If any faults or abnormalities are observed the meter can not be used any more and it has to be checked out Never use the meter unless the back cover and the battery cover are in place and fastened fully Do not use abrasives or solvents on the meter us...

Страница 5: ...resistance continuity test and insulation test some models also provide frequency or temperature test Full overload protection low battery indication and over range indication are provide Following table shows function of the series of multimeter FUNCTION 266 266F 266C 266A ACV DCV ACA Ω INSULATI ON TEMP FREQ PEAK HOLD ...

Страница 6: ...g through the conductor Press the TRIGGER to open the transformer jaws When the finger press on the TRIGGER is released the jaws will close again 2 3 DATA HOLD A push switch Push ON Push OFF All ACA ACV DCV HZ ranges with this feature 2 4 INPUT JACKS This meter has three input jacks that are protected against overload to the limits shown During use connect the black test lead to COM jack and conne...

Страница 7: ...ter at 2000MΩ position 3 Set the insulation tester unit range switch to the 2000MΩ position 4 Use the insulation tester unit of the test leads connect its L E input connect to being tested installation s Test installation s must be power OFF 5 Set the insulation tester power switch to the ON position 6 Depress the PUSH 500V push push switch the 500V on red LED lamp will light Clamp meter display r...

Страница 8: ... indication 1 will be displayed 2 When checking in circuit resistance be sure the circuit under test has all power removed and that all capacitors have been discharged fully 3 5 TESTING DIODE 1 Connect the black test lead to the COM jack and the red test lead to the VΩ jack The polarity of red lead is 2 Set the rotary switch at position and connect red lead to the anode black lead to the cathode o...

Страница 9: ...s possible at input voltage above 10Vrms but the accuracy is not guaranteed 2 In noisy environment it is preferable to use shield cable for measuring small signal 4 SPECIFICATIONS Accuracy is specified for a period of one year after calibration and at 18 to 28 64 Fto 82 F with relative humidity to 80 4 1 GENERAL Display 3 digit LCD with automatic polarity indication Measuring Method Dual slope int...

Страница 10: ...Response Average Calibrated in rms of sine wave Overload protection 1200A within 60 seconds Jaw Opening 2 5cm 4 3 INSULATION TEST With option 500V insulation tester unit Range Resolution Accuracy Note 20MΩ 10KΩ 2 0 of rdg 2 digits 2000MΩ 1MΩ 4 0 of rdg 2 digits 500MΩ 5 0 of rdg 2 digits 500MΩ 4 4 AC VOLTAGE Range Resolution Accuracy 200V 0 1V 1 0 of rdg 4 digits 600V 1V 1 0 of rdg 4 digits Input I...

Страница 11: ...olution Accuracy 200Ω 0 1Ω 1 0 of rdg 3 digits 2KΩ 1Ω 1 0 of rdg 1 digit 20KΩ 10Ω 1 0 of rdg 1 digit 200KΩ 100Ω 1 0 of rdg 1 digit 2MΩ 1KΩ 1 0 of rdg 1 digit Over protection 600V AC DC on all ranges Open circuit voltage 700mV 4 7 TEMPERATURE Accuracy RANGE RESOLUTION 0 to 400 32 o F to 752 o F 400 to 750 752 o F to 1382 o F 0 to 750 1 1 0 of rdg 3 digits 2 0 to rdg 1 digit 32 o F to 1382 o F 1 o F...

Страница 12: ...1 6 BATTERY REPLACEMENT If the sign BAT appears on the LCD display it indicates that battery should be replaced Remove the battery cover of case Replace the exhausted battery with a new one WARNING Before attempting to open the battery cover be sure that test leads have been disconnected from measurement circuits to avoid electric shock hazard M266 09 ...

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