Digital clamp meter Operation Manual
Contents
1. Ac RMS reading is possible but maybe over range 3 It s better to use shield cable when measuring small signals in noisy place 4 Be careful when measuring high voltage 5 Do not input voltage over 250V DC ACRMS 4 10 Measurement of temperature Turn the function switch to TEMP range Then connect the negative terminal black of thermocouple sensor to the COM terminal and the positive red to the VOQHz terminal Put the testing terminal of thermocouple sensor on or into the testing object then read the temperature CC from the LCD display see Figure 9 NOTE 1 During test put the unit away from high temperature and use the testing terminal of thermocouple sensor within testing limits 2 To make sure of accurate testing results do no replace the thermocouple sensor randomly 3 Do not input voltage under this range 4 When the input terminal is in open circuit will display the normal temp 4 11 Measure of Continuity and diode 1 Turn the function switch to gt H range press SELECT to select continuity test mode 2 Connect the red test lead into VOQHz input terminal and black test lead into COM terminal see Figure 10 3 Press SELECT to select continuity test mode the LCD will display the symbol 4 Connect the two test leads on the testing circuit with some distance If the buzzer rings the testing resistance will be less than 504100 5 Pre2. Digital clamp meter Operation Manual To avoid possible electric shock or personal injury please read the Operation Manual before use and follow all safety instructions 1 General This meter is a portable digital clamp meter which is used to measure ACA ACV DCYV resistance capacitance temperature frequency and other functions It s an excellent instrument for auto checking repair maintenance It can be used in laboratory home as well as large current measurement sites 2 Safety note The meter meets the standards of IEC1010 1 EN61010 1 pollution2 CAT HI600V and UL3111 1 Read the operation manual carefully before operation 2 1 Safety Symbols AN THE OPERATOR MUST REFER TO THE MANUAL LOW BATTERY A EXISTS DANGEROUS VOLTAGE Eb DUAL INSULATION 2 2 Notes 2 2 1 Read the operation manual carefully before operation in order to avoid endangering the personal safety and meter damage we need to operate in accordance with the specification requirements 2 2 2 Before opening back cover to replace batteries remove test leads and disconnect meter from any circuits being measured Water is forbidden to leak into the meter cover inside 2 2 3 Do not operate the meter with the cover removed or the case open 2 2 4 Do not input limit over ranged 2 2 5 Do not input voltage value at resistance capacitance Continuity diode and temperature range 2 2 6 The power switch should set to O
3. FF after finishing measurement 2 2 7 For storing a long time remove the battery to avoid battery leakage damage to internal components 2 2 8 When working with voltages above 60V DC or 30V AC RMS which will pose a shock hazard 2 2 9 Please be especially careful when the meter clipped not insulated conductor or bud bars accidental conductor contact will result in electric shock 3 Features 3 1 General Features 3 1 1 Displaying LCD 3 1 2 Max display 4000 3 3 4 digits automatic polarity display 3 1 3 Max jaw open 35mm 3 1 4 Over range display OL displayed in the highest digit 3 1 5 Hold Data hold 3 1 6 Relative value measurement 3 1 7 Sampling rate 3times sec 3 1 8 Low battery display 3 1 9 Continuity test If the resistance is lt 50 10 Q the buzzer sounds continuously 3 1 10 Auto range or manual range 3 1 11 Auto power off 3 1 12 power consumption Approx 3Ma 3 1 13 Battery 2pcs 1 5V battery AAA 7 battery 3 1 14 Working environment 0 40 C relative humidity lt 70 RH 3 1 15 Size 228mm 75mm 35mm length width height 3 1 16 Weight about 260g including battery 3 1 17 accessories operation manual test leads temperature probe 2pcs AAA batteries gift box 3 2 FEATURES 3 2 1 Accuracy a x reading data digits environment temperature at 2345 C relative humidity lt 75 One year guarantee since production date 3 2 2 Tempe
4. NGE Press this button to select suitable range Press it for more than 2 seconds to get back to AUTO mode 3 HOLD Press this button to hold the current measured value on LCD Press it again to exit the hold model Note after AUTO off press the HOLD button to cancel the auto off function 4 REL Press this button to make the current displayed value as reference value meanwhile the LCD displays as zero AV 40V 400V 600V range if the amplitude is unknown start from highest range and NOTE NOTE 1 The 400mV range only has the manual range if you need to use 400mV range press RANGE key to select this range 2 When only the most significant digit OL is displays it means over range must set the range switch to a higher range 3 The input voltage shall not exceed the voltage limit Otherwise the unit may be destroyed 4 Take extreme care to avoid the contact with high voltage circuits when taking measurements in these circuits 4 6 Measurement of DC voltage 1 Turn the function switch to V range Then connect the red test lead into VQHz input terminal and black test lead into COM terminal according to the displayed value 2 If OL displays it means over range the range switch should be set to a higher range When the resistance is over IMQ the reading should take a few seconds to be stable It is normal at high resistance measurement 3 When input terminal is open circuit OL
5. VOQHz input terminal and black test lead into COM terminal 3 Connect the test leads crossly with the resistor under tested 3 If measuring the small resistance should short circuit at first Tee the unit maybe destroyed press REL switch and then measuring the unknown resistance 4 5 Measurement of AC voltage it actual resistance will be display on the LCD 1 Turn the function switch to W range Press SELECT switch 3 The default states is auto range display AUTO symbol press to select AC measuring mode then connect the red test lead into range switch to select manual range you VQOHz input terminal and black test lead into COM terminal can choose 400Q 4kQ 40kQ 400kQ poo Diode Continuity test Relative value symbol Maximum reading display LCD NOTE D H HOLD Data hold 2 Connect the test leads to the test point voltage and polarity of 4MQ 40MQ range the point which connect with red test leads will be display on see Figure 6 3 The default states is auto range display AUTO symbol press 1 If the measured resistance is unsure beforehand should set the 10 Voltage unit mV V Q KQ MQ Resistance unit Q KQ MQ range switch to select manual range you can choose 400mV range switch to a higher range then switch to a proper range 4 3 Button functions and Auto off 1 SELECT Under mull function mode press SELECT to choose related function 2 RA
6. displays 4 When measuring in line resistance be sure the power has been turned off and all capacitors are fully released 5 Do not input voltage at this range 4 8 Measurement of capacitance 1 Turn the function switch tod range press SELECT to select resistance measuring mode 2 Connect the red test lead into VQHz input terminal and black test lead into COM terminal see Figure 7 3 If the LCD is not display zero press REL to make display as Zero 4 Use the test leads the read test lead as to connect the capacitance into COM and VQ terminal correctly The LCD will display capacitance value NOTE 1 Do not input voltage or current signal under the capacitance range If there is display on LCD press REL to make LCD display as zero so as to make sure of accurate measurement 2 There is only auto measurement mode under capacitance range 3 To protect the unit make sure that the testing capacitances completely discharged 4 Display of 200uFrange is stable for more than 15 seconds 4 9 Measurement of Frequency 1 Connect the red test lead into VOQHz input terminal and black test lead into COM terminal 2 Turn the function switch to Hz range 3 The range is auto range Connect the leads across to the signal under measured the value will be displayed on LCD NOTE 1 There is only auto range at this range 2 When input is over 10V
7. e center or contact the local dealers E Connect the unit to power Do display E Turn on the ON FF switch E Replace battery Obvious display E Replace battery error The specifications are subject to changes without notice The operation manual is considered as correct Should the users find any mistakes or omission please kindly contact the manufacturer The manufacture dose not take responsibilities for accidents and harm caused by wrong operations by the users The functions described in this manual shall not be considered as the reasons to apply the unit to special usages 706B V1 0
8. get accurate display it is suggested to put the conducting wire in the center of the clamp 3 The default states is auto range display AUTO symbol press range switch to select manual range you can choose 400A 600A range if the amplitude is unknown start from highest range and decrease as necessary see Figure 3 NOTE 1 When only the most significant digit OL is displays it means oOver range must set the range switch to a higher range 2 The input current shall not exceed the current limit Otherwise 2 Connect the test leads to the test point voltage and polarity of the point which connect with red test leads will be display on LCD 3 The default states is auto range display AUTO symbol press range switch to select manual range you can choose 400mV 4V 40V 400V 1000V range if the amplitude is unknown start from highest range and decrease as necessary see Figure 5 NOTE 1 When only the most significant digit OL is displays it means over range must set the range switch to a higher range 2 The input voltage shall not exceed the voltage limit Otherwise the unit may be destroyed 3 Take extreme care to avoid the contact with high voltage circuits when taking measurements in these circuits 4 7 Measure of resistance 1 Turn the function switch to Q range press SELECT to select resistance measuring mode 2 Then connect the red test lead into
9. prox less than 50 10 Q 0 5V Over load protection 250V DC ACRMS Warning Please don t input voltage value at this range 4 Operation 4 1 Panel description see Figure 1 1 Jaw A device to test the AC current which makes the current into voltage The single conductor must get thought the clamp center 2 Hand protection A safe design to protect users from touching the dangerous area 3 Clamp gunlock Pressing the gunlock releases the clamp releasing the gunlock closes the clamp 4 Function choosing switch Selects AC current DC AC voltage resistance capacitance frequency temperature etc 5 LCD display 6 Function key Chooses basic function 7 Voltage Resistance Frequency Temperature input COM 8 GND COM 9 Carrying belt 4 2 Displaying symbols Measuring values hereafter will automatically deduct the reference value unless pressing the REL button again to exit reference value test function 5 AUTO OFF During measurement if there is no operation with the buttons and switch the unit will automatically turns off to save energy To exit AUTO OFF function hibernation mode please press HOLD button Under AUTO OFF mode press any button or turn the switch the unit will get into AUTO ON working mode 4 4 Measurement of AC current 1 Turn the function switch to ACA range 2 Open the clamp to clamp a conducting wire and read the display directly To
10. rature coefficient 0 1 ted accuracy 1 C lt 18 C or gt 28 C 3 2 3 DC voltage Accuracy 400mV 1 0 reading 5 0 5 reading 5 400V 100mV Input impedance approx 1OMQ Overload protection 600V DC ACRMS 3 2 4 AC voltage Accuracy Input impedance approx 1 OMQ Overload protection 600V DC AC RMS Frequency response 50 60 Hz at 600V range other range 40 400 Hz 3 2 5 AC current lt 800 2 0 reading 5 100mA gt 800A 4 0 reading 10 Over load protection 600A input time can t exceed minute Frequency response 50 60 Hz 3 2 6 Resistance 4000 0 8 reading 5 Range Accuracy Overload protection 250V DC ACRMS 0 8 reading 3 Warning Please don t input voltage value at this range 3 2 7 Capacitance 400nF 3 5 reading 10 4uF 200uF 5 0 reading 10 Overload protection 250V DC ACRMS Accuracy Warning Please don t input voltage value at this range 3 2 8 Frequency Input sensitive gt 0 7V Overload protection 250V RMS 3 2 9 Temperature Resolution lt 400 C 1 0 5 40 750 C gt 400 C 1 5 15 Sensor K type banana probe Ni Cr Ni Si Warning Please don t input voltage value at this range 3 2 10 Continuity test Forward DCA is approx 0 5mA the Forward voltage drop of backward voltage diode of open circuit is approx 1 5V Buzzer makes a long Voltage of open sound while resistance is circuit is ap
11. ss SELECT to select diode test mode The LCD will display the symbol gt 6 Forward measurement Connect the red test lead on the testing diode s positive polarity and black test lead on negative polarity the LCD will display the approximated value of diode voltage drop 7 Reverse measurement Connect the red test lead on diode s negative polarity and black test lead on positive polarity the LCD will display OL 8 A completer diode test includes forward and reverse tests If the testing results are not in compliance with the above then diode is broken NOTE Do not input voltage under this range 5 Maintenance The unit is a precise instrument Random changes to the circuit are not allowed Users shall pay attention to the following 1 If the LCD display the symbol EJ please replace the battery 2 Before replacing the battery move the test lead from the testing objects and turn off the power Release the screws on the battery cover and replace the battery 3 Do not expose the unit under direct sunshine high temperature flammable amp explosive environment nor strong magnetic environment 4 Keep away from humidity and dust Do not fall it 5 Use cloth with cleanser rather than corrosive solvents to wipe and clean the unit regularly 6 Troubleshooting If the unit dose not work normally please refer to the following solutions If the problems still cannot be solved please refer to repairing servic
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