ACM-2031 AC/DC CLAMP METER USER`S MANUAL
Contents
1. Input Impedance 10MQ Overload Protection 1000V DC or 700V AC RMS AC VOLTAGE Range Resolution Accuracy 4V 50Hz 1mV 40V 50Hz 10mV 1 2 5 400V 50Hz 0 1V 700V 50Hz 1V 1 59045 Input Impedance 10MQ Frequency range 40Hz to 400Hz Overload Protection 1000V DC or 700V AC RMS DC CURRENT Range Resolution Accuracy 400A 0 1A 3 09645 1000A 1A Overload Protection 120 ranges for 60 seconds max AC CURRENT Range Resolution Accuracy 400A 0 1A t 3 09648 1000A 1A Overload Protection 120 ranges for 60 seconds max Frequency range 50Hz to 60Hz RESISTANCE Range Resolution Accuracy 4000 0 10 4kQ 10 1 0 5 40 100 400kQ 0 1kQ 4MQ 1kQ 1 0 5 40MQ 10kQ 2 0 5 Overload Protection 250V dc or rms ac for all ranges CAPACITANCE MEASUREMENT Range Resolution Accuracy 4nF 1pF 40nF 10pF 4 0 10 400nF 0 1nF 4uF 1nF 40uF 10nF Not Specified Overload Protection 250V dc or rms ac for all ranges FREQUENCY MEASUREMENT Range Resolution Accuracy 40Hz 0 01Hz 400Hz 0 1Hz 4kHz 1Hz 0 1 1 40kHz 10Hz 100kHz 0 1kHz Measurement range 1V to 10V rms 10Hz to 100kHz FREQUENCY MEASUREMENT FOR CLAMP Range Resolution Accuracy 40Hz 0 01Hz 0 1 12. terminals respectively 2 Set rotary switch at desired V position Connect the test lead tips in parallel with the circuit to be measured Be careful not to touch any electrical conductors 3 Read the measure result from the display 4 When measuring AC voltage pushing Hz DUTY button the frequency of ACV will show on LCD display DC CURRENT MEASUREMENT 1 Set the rotary switch at desired 400A or 1000A position 2 Push the FUNC button to select DC current 3 Push the ZERO button to get relative measurement mode and 0000 show on LCD display 4 Press the trigger to open transformer jaw and to clamp one conductor only making sure that the jaw is firmly closed around the conductor 5 Read current value on LCD display NOTE As the jaw core may remain some magnetic force after using for awhile If the display can not reach 0 open the jaws several times Then work again AC CURRENT MEASUREMENT 1 Set the rotary switch at desired 400A or 1000A position 2 Push the FUNC button to select AC current 3 Press the trigger to open transformer jaw and to clamp one conductor only making sure that the jaw is firmly closed around the conductor 4 Read current value on LCD display RESISTANCE MEASUREMENT 1 Insert the black and red test leads into the COM andVOHz 4 terminals respectively 2 Set rotary switch at desired Q gt o1 4F range position 3 Push FUNC button to select Q 4 If the
3. 400Hz 0 1Hz Measurement range 40Hz 400Hz gt 20A TEMPERATURE Range Resolution Accuracy 400 C 750 C 1 C 1 0 5 0 C 400 C 1 C 1 0 3 40 C 0 C 1 C 1 09646 AUDIBLE CONTINUITY AND DIODE If continuity exists about less than 30Q built in buzzer will sound gt Show the approx Forward voltage of the diode Duty cycle 0 1 to 99 9 AUTO POWER OFF To extend the battery life Auto Power Off function is provided If no key operations of range changing happen about 15 minutes the meter will be turned off automatically To turn it on rotate the rotary switch or push any function buttons only REPLACING THE BATTERY WARNING To avoid electrical shock or personal injury remove the test leads and any input signals before replacing the battery Replace only with same type of battery When the electrical tester displays the Es mark or the backlight be not very lit the battery must be replaced to maintain proper operation Use the following procedure to replacing the battery 1 The Rotary Switch is used to select OFF Disconnect test leads from any live source and remove the test leads from the input terminals 2 Remove screws on the battery cover and open the cover 3 Remove the exhausted battery and replace with three new 1 5V size AAA batteries 4 Place battery cover and secure by a screw CAUTION Using this
4. resistance being measured exceeds the maximum value of the range or the input is not connected an overrange indication OL will be display 5 Read the measure result directly from LCD display NOTE When checking in circuit resistance be sure the circuit under test has all power removed and that all capacitors have been discharged fully CONTINUITY TESTING 1 Insert the black and red test leads into the COM andVOHz 4Fnput terminals respectively 2 Set rotary switch at desired range position Push FUNC button to selecto1 3 If continuity exists i e resistance less than 309 built in buzzer will sound DIODE MEASUREMENT 1 Insert the black and red test leads into the COM andVOHz TFnput terminals respectively 2 Set rotary switch at desired Q Foi range position Push FUNC button to select gt 3 The red lead should be connected to the anode and the black lead to the cathode of the diode 4 The typical voltage drop should be about 0 6V for silicon diode or 0 3V for germanium diode 5 If the diode is reverse biased or there is open circuit the reading displayed will be OL CAPACITANCE MEASUREMENT 1 Insert the black and red test leads into the COM andVOHz terminals respectively 2 Set rotary switch at desired 4 range position Push FUNC button to select TF 3 Connect test leads across the capacitor under measurement and be sure that the polarity of connect
5. wiring connections or any live circuit when attempting to take measurements 2 Before opening the case always disconnect test leads from all energized circuits 3 Never use the meter unless the back cover is in place and fastened completely 4 Do not use abrasives or solvents on the meter To clean it using a damp cloth and mild detergent only 5 Qualified and trained service technicians should only perform calibration and repair of the meter GENERAL DESCRIPTION The meter is an autorange professional AC DC clamp meter with 3999 counts For measuring DC and AC voltage DC and AC current Resistance Capacitance Temperature Frequency Frequency from the clamp Duty Cycle Diode and Continuity Test with battery operated PANEL DESCRIPTION 1 Transformer jaws Pick up DC or AC current flowing through the conductor 2 Rotary switch Rotary switch is used to select functions 3 HOLD button When this button is pushed the display will keep the last reading and Inl symbol will appear on the LCD Pushing it again returns the meter to normal mode 4 Hz DUTY button the button is used to select frequency or duty cycle measurement in Hz range 5 LCD display EE pto Azro Ez 6 VQHz CAF Jack This is positive input terminal for volt diode resistance capacitance frequency dutycycle Con tinuity and temperature measurement connection is made to it using the red test lead 7 COM jack Th
6. AN ACIDC CLAMP METER ACM 2031 USER S MANUAL www tmatlantic com CONTENTS PAGE SAFETY INFORMATION 1 SYMBOL EXPLANATION 1 SAFETY PRECAUTIONS _ 2 MAINTENANCE 3 GENERAL DESCRIPTION 4 PANEL DESCRIPTION 4 OPERATING INSTRUCTIONS 7 SPECIFICATIONS _ 12 AUTO POWER OFF 16 REPLACING THE BATTERY 17 ACCESSORIES SAFETY INFORMATION The digital clamp meter has been designed according to IEC1010 1 and IEC1010 2 032 concerning safety requirements for electrical measuring instruments and hand held current clamps with double insulation overvoltage category 1000V CAT II 600V CAT Ill and pollution 2 This meter complies with the requirements of 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 electromag netic 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 exercise care and take appropriate precautions to avoid misleading SYMBOL EXPLANATION A Important safety information refer to the operating manual Dangerous voltage ma
7. e into the COM jack The LCD display will show the current environment temperature 3 Contacting the object be measured with the thermocouple probe 4 Read temperature value on the LCD display DUTY CYCLE TEST 1 Insert the black and red test leads into the COM andVOHz TEnput terminals respectively 2 Set rotary switch at desired Hz position Push Hz Duty button to select mode and connect the test lead tips in parallel with the circuit to be measured Be careful not to touch any electrical conductors 3 Read the measure result directly from LCD display SPECIFICATIONS Accuracy of reading tnumber of least significant digits at 18 C to 28 C with relative humidity up to 75 All specifications assume less than 1 year since calibration Temperature coefficient 0 1xspecified accuracy C GENERA Maximum voltage 1000V DC or 700V AC RMS Altitude lt 2000m Display LCD 3999 counts Updates 2 3 sec Ranging method Auto range mode Polarity polarity indication display for negative Overrange indication LCD will display OL Low battery Es will appears on LCD Jaw capability 40mm Max conductor size Power Battery1 5Vx3 Size 225mmx86mmx32mm Weight Approx 330g Operating 50 to 350 Storage temperature 10 to 500 Size AAA DC VOLTAGE Range Resolution Accuracy 400mV 0 1mV 4V 1mV 0 8 5 40V 10mV 400V 0 1V 1000V 1V 1 0 5
8. gt appliance an environment with a strong radiated radio frequency electromagnetic field approximately 3V m may influence its measuring accuracy ACCESSORIES e Operator s instruction manual e testleads e Gift box e Battery 1 5Vx3 Size AAA K type thermocouple
9. ion is observed Note The polarity of the red lead connection is positive 4 Read the measure result directly from the display MEASURING FREQUENCY 1 Insert the black and red test leads into the COM andVOHz 4Fnput terminals respectively 2 Set rotary switch at desired Hz position Push Hz Duty button to select frequency mode and connect the test lead tips in parallel with the circuit to be measured Be careful not to touch any electrical conductors 3 The signal amplitude must also be greater than the sensitivity level 4 Determine that the amplitude level of the signal to be measured is not greater than the input voltage limit 25V DC AC rms 5 Read the measure result directly from LCD display NOTE The input voltage should be between 1V and 10V rms ac If the voltage is more than 10V rms Reading may be out of the accuracy range MEASURING FREQUENCY FOR CLAMP 1 Set the rotary switch to nm position 2 Press the trigger to open transformer jaw and to clamp one conductor only making sure that the jaw is firmly closed around the conductor 3 Read the measure result of frequency of AC current flowing through the transformer jaw from the display NOTE Frequency range 40Hz to 400Hz 20A MEASURING TEMPERATURE 1 Set the rotary switch at C Position The LCD display will show OL 2 Connect the red lead of K type thermocouple into the VOHz 4F jack and the black lead of K type thermocoupl
10. is is negative ground input terminal for all measurements except current Connection is made to it using the black test lead 8 ZERO button Push the button to get relative measurement mode A ZERO annunciate display on LCD But store the displayed reading as a reference value In the Relative mode the value shown on the LCD is always the difference between the stored reference value and the present reading If the new reading is the same as the reference value the display will be zero 9 FUNC button In QF range push the button to select QorPtor dk function Different symbol of function and measurement unit will appear on the LCD In current range press this button to select AC current or DC current 10 Power Switch A push push switch is used to turn the meter on or off 11 Rigger Press the lever to open the transformer When the lever is released the jaws will close again OPERATING INSTRUCTIONS DC VOLTAGE MEASUREMENT 1 Insert the black and red test leads into the COM and VO HZ input terminals respectively 2 Set rotary switch at desired V position Connect the test lead tips in parallel with the circuit to be measured Be careful not to touch any electrical conductors The polarity of the red lead connection will be indicated along with the voltage value 3 Read the measure result from the display AC VOLTAGE MEASUREMENT 1 Insert the black and red test leads into the COM andVOHz
11. y be present Earth ground B Double insulation Protection class 1000V CAT II 600V CAT III SAFETY PRECAUTIONS Follow all safety and operating instructions to ensure maximum personal safety during the operation and to ensure the meter is used safely and is kept in good operating condition eRead the operating instructions thoroughly and completely before operating your meter ePay attention to WARNINGS which will inform you of potentially dangerous proce dures The instructions in these warnings must be followed eAlways 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 eDo not expose the instrument to direct sunlight extreme temperature or moisture eNever ground yourself when taking electrical measurements Keep your body isolated from ground by using dry clothing rubber shoes rubber mat or any approved insulating material eYou always are careful when working with voltages above 60V dc or 30V ac rms Keep fingers behind the probe barriers while measuring eTo avoid damages to the instrument do not exceed the maximum limits of the input values shown in the technical specification tables eNever use the meter to measure voltages that might exceed the maximum allowable input value of any function MAINTENANCE 1 Never touch exposed
Download Pdf Manuals
Related Search