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1. Axiomet AX 150 1 Safety Notices The instrument meets IEC 1010 clauses the safety standards promulgated by International Electrotech nical Commission in terms of design and shall be used after reading the safety notices Don t input an extreme voltage exceeding the true effective value of DC1000V or AC700V when measur ing the voltage The voltage of below 36V is safe When the voltage measured is higher than DC36V or AC25V users shall check when the multimeter probe is reliably contacted correctly connected and well insulated in order to avoid electric shock The multimeter probe shall be taken away from the tested point if the function and range are changed Select correct function and range to avoid misoperation The instrument of this series has full range protection function but for the sake of safety you shall still pay attention to this point Do not input a current higher than 10A when measuring the current 2 Characteristics 2 1 Common characteristics Display mode Liquid crystal display Maximum display 3999 33 4 bit automatic polar display Measuring method Dual integral A D conversion Sampling rate Around 3 times second Ultra range display Highest position displayed as OL Low voltage display Appearance of the sign BATT Working environment 0 40 C relative humidity lt 80 Power supply 5 2x 1 5V batteries Volume size 180 x 90 5 x 45mm L x W x H Weight Around 420g including
2. DC millivolt voltage measurement e Insert the black multimeter probe into COM end and the red multimeter probe into VHz end e Convert the functional switch to mV level e The instrument doesn t show the sign AUTO and this level of voltage may be used for measurement only when the voltage is no bigger than 400mV e Make the testing multimeter probe contact the tested point and the voltage and polarity of this point contacted by the red multimeter probe will be displayed on the screen Notes e If LCD shows OL it indicates going beyond the range and here AUTO DC voltage level of the automatic range shall be used for measurement e Never use high voltage DC400mV for measurement at this level 3 4 AC millivolt true effective voltage measurement e Insert the black multimeter probe into COM end and the red multimeter probe into VHz end e Rotate functional switch to mV level and press SELECT key to display ACmV At this level there is no the sign AUTO Users shall never use this level for measurement in case of AC voltage higher than 400mV e Make the testing multimeter probe contact the tested points and the voltage of the two points contacted by the multimeter probe will be displayed on the screen Notes e When LCD shows OL it indicates going beyond the range and the product shall be turned to automatic AC voltage measurement e Never use a voltage of higher than
3. e It s better to use shielded cable for measuring small signals in noise environment e Never contact the high voltage circuit measured 3 11 Diode and on off test e Insert the black multimeter probe into COM hole and red multimeter probe into VHz hole the polarity of red multimeter pole is e Rotate the functional switch to DIODE or BUZZ level e Measurement in forward direction Connect the red black multimeter probe to the positive negative pole of the tested diode and the display unit will display the approximate value of the voltage drop in forward direction of the diode e Measurement in backward direction Connect the red black multimeter probe to the negative positive pole of the tested diode and the display unit will display OL Complete diode test includes measurement in forward and backward direction If the tested result is not accordant with the abovementioned it shows that the diode is defective e Connect the multimeter probes to the two points of the circuit to be tested and the resistance value is around 50 Here the built in buzzer will ring Notes e Don t input voltage at DIODE or BUZZ level 3 12 Temperature measurement e Rotate the functional switch to TEMP level e Insert the thermocouple sensor s cold end free end negative pole black plug into COM end and its working end temperature measuring end positive pole red plug into VR
4. AC400mV for measurement at this level or the instrument will be damaged 3 5 True effective value measurement of AC voltage e Insert the black multimeter probe into COM end and the red multimeter probe into VHz end e Rotate the functional switch to V level e The instrument is initially in the state of automatic range and displays the sign AUTO after RANGE key is pressed it will turn into the mode of manual range and the ranges 400mV 4V 40V 400V and 750V are optional e Make the testing multimeter probe contact the tested points and the voltage of the two points contacted by the multimeter probe will be displayed on the screen Notes e Under the mode of manual range if the LCD displays OL it indicates going beyond the range and RANGE key shall be rotated to a higher level e The voltage measured shall never exceed AC750V or the instrument circuit will possibly be damaged HW O WW OMT e Never contact the high voltage circuit measured 3 6 DC current measurement e Insert the black multimeter probe into COM hole and the red multimeter probe into mA or 10A hole maximum 400mA or 10A e Rotate the functional switch to current level press SELECT key to select DC measurement mode and then connect the probe of the instrument to the tested circuit The current value tested and the current polarity of the point contacted by red probe will be displayed on th
5. MULTIMETER e 1 LCD unit It displays the numerical value measured with the instrument and its unit e 2 1 HzDUTY key AC DC current and voltage DC AC This key may be pressed for conversion into AC current if DC current is measured or for conversion of frequency and duty ratio 1 99 if frequency is measured WWW AXIOMET EU 2 2 Voltage current and capacitance level key After this functional switch is pressed the reading will be zeroed and the product will step into the measurement of relative value and the display unit will show the sign REL and after this key is pressed once more the product will exit from the measurement of relative value 2 3 RANGE key This key is used for selection of automatic or manual range The instrument is in the state of automatic range initially and shows the sign AUTO After this functional switch is pressed it will turn into manual range The level will be increased by one every time when the key is pressed and it will recycle from low to high in turn After the key is pressed for more than 2s continuously the product will return to the state of automatic range 2 4 HOLD key After this functional switch is pressed the current numerical value measured with the instrument will be held on the LCD unit which will show the sign HOLD and after this key is pressed once more the instrument will exit from the holding state 2 5 Maximum minimum value measurement key The key
6. battery Wn O www e Accessories One User s Manual shock proof sleeve and one external packing box one TPO1 ther mocouple with temperature function testing accessories one pair of alligator clips and two 1 5V batteries 2 2 Technical characteristics 2 2 1 Accuracy a of the reading least significant bit guaranteed accurate ambient temperature 23 5 C relative humidity lt 75 guaranteed calibration period one year since the date of delivery 2 2 2 DC voltage Range Accuracy Resolution 400mV 1 0 10 0 1mV AV 0 5 3 1mV 40V 0 5 3 10mV 400V 0 5 3 100mV 1000V 0 5 3 1V Input impedance 10 MQ Overload protection DC1000V or AC750V peak value 2 2 3 DC millivolt Range Accuracy Resolution 400mV 1 0 10 0 1mV 2 2 4 True effective value of AC millivolt Range Accuracy Range Scope Resolution 400mV 3 0 3 40Hz 1kHz 0 1mV 2 2 5 True effective value of D AC voltage Range Accuracy Frequency Scope Resolution AV 1 0 3 40Hz 1kHz 1mV 40V 1 0 3 40Hz 1kHz 10mV 400V 1 0 8 40Hz 1kHz 100mV 750V 1 0 3 40Hz 1kHz 1V Input impedance 400mV range gt 40M and the other is 10 MQ Overload protection DC1000V or AC750V peak value Frequency response The frequency scope for all ranges is 40Hz 1kHz applicable to standard sine wave Wn O WMT and triangle wave Display True effectiv
7. supply is not connected Holding switch Replace the batteries Appearance of the sign BATT Replace the batteries No input of current Replace the fuse Big error in display Replace the batteries Wn O wwa
8. Hz hole Then arrange it at the place where the temperature is measured the display screen will show the temperature value of this place measured with the reading presented in Celsius degree while if SELECT key is pressed the reading will be presented in Fahrenheit degree Notes e Normal temperature will be displayed if the input end is open circuit e Never change the temperature sensor or the accuracy of measurement won t be guaranteed e Never input voltage at temperature level 3 13 Data holding Press HOLD switch to make present data held on the display unit and press it once again to cancel the data holding and restart counting Wn S O WMT 3 14 Automatic power off If being left unused for 15min the instrument will be powered off automatically and then enter into sleep state but in 1min before power off the built in buzzer will give a prompt by ringing for five times later the power supply may be restarted by pressing any key Press select key before starting the machine may cancel the function of automatic power off 4 Maintenance of the Instrument This instrument is precise and users shall never change its circuit at random Protect the instrument from water dust and hurl down Never store or use the instrument in high temperature high humidity flammable explosive and strong magnetic field environment Please clean the outer surface of the instrument with wet fabric and gentle deter
9. citors are completely discharged e Never input voltage at resistance level 3 9 Capacitance measurement e Rotate the functional switch to CAP level e Insert the black multimeter probe into COM hole and red multimeter probe into VHz hole e Ifthe value displayed on the screen is not 0 press REL key for zeroing e Insert the corresponding polarity of tested capacitor into VHz hole of testing multimeter probe the polarity of red multimeter probe is and connect the negative end of tested capacitor into COM Here the screen will display the capacity of capacitor Notes e For each test REL key must be pressed once for zeroing in order to ensure the accuracy of measure ment e Capacitance level has only the working mode of automatic range e Tested capacitor shall be completely discharged for fear of damaging the instrument 3 10 Frequency measurement Frequency measurement is only applicable to AC220V AC380 power supply and the low frequency and high voltage measurement but not applicable to high frequency low voltage measurement Press SE LECT key to convert frequency and duty ratio and display the frequency or duty ratio reading of tested signal Notes e Frequency has only the working mode of automatic range e Ifa value exceeding the effective value of AC10V is input the reading will be presented but it will possibly be overproof Wn t lt CtststsC WMT
10. e screen simultaneously Notes e If having no idea about the scope of current measured users shall rotate the range switch to the highest level and then rotate it to corresponding level according to the value displayed e IfLCD shows OL it indicates going beyond the range and the range switch shall be rotated to a higher level e The maximum input current is 400mA or 10A depending on the inserting location of red probe In case of exceeding rated current the fuse will be melted or even the instrument will be damaged It s forbidden to input voltage exceeding DC36V or AC25V peak value at COM and mA or A end 3 7 True effective value measurement of AC current e Insert the black multimeter probe into COM hole and the red multimeter probe into mA or 10A hole maximum 400mA or 10A e Rotate the functional switch to current level press SELECT key to select AC measurement mode and then connect the probe of the instrument to the tested circuit The current value tested will be displayed on the screen simultaneously Notes e Ifhaving no idea about the scope of current measured users shall rotate the range switch to the highest level and then rotate it to corresponding level according to the value displayed e IfLCD shows OL it indicates going beyond the range and the range switch shall be rotated to a higher level e The maximum input current is 400mA or 10A depending on the in
11. e value more than 200Hz for other waveforms only for reference 2 2 6 DC current Range Accuracy Resolution 400uA 1 5 3 0 1uA 4000uA 1 5 8 1luA 40mA 1 5 3 10uA 400mA 1 5 8 100uA 10A 1 5 3 10mA Maximum voltage drop measured Full range mA 400mV A 100mV Maximum input current 10A not more than 10s Overload protection 0 5A 250V fuse 10A 250V fuse 2 2 7 True effective value of AC current Range Accuracy Frequency scope Resolution 400uA 1 5 3 40Hz 1kHz 0 1uA 4000uA 1 5 3 40Hz 1kHz 1uA 40mA 1 5 3 40Hz 1kHz 10uA 400mA 1 5 3 40Hz 1kHz 100uA 10A 1 5 3 40Hz 1kHz 10mA Maximum voltage drop measured Full range mA 400mV A 100mV Maximum input current 10A not more than 15s Overload protection 0 5A 250V fuse 10A 250V fuse Frequency response The frequency scope for all grades of current is 40Hz 1kHz applicable to standard sine wave and triangle wave and that for other waveforms more than 200Hz only for reference 2 2 8 Resistance Range Accuracy Resolution 400Q 0 5 3 0 1Q 4KQ 0 5 4 2 1Q 40KQ 0 5 2 10Q 400kQ 0 5 2 100Q AMQ 0 5 2 1KQ 40MQ 1 5 2 10KQ Input sensitivity 1 5V Overload protection DC or AC 250V peak value Open circuit voltage 400mV Wn t lt Csti SC wwa Open circuit protection DC or AC250V peak value Note When the range of 400 is
12. gent instead of grinding additives and strong solvents like alcohol etc If the instrument is left unused for long term the battery shall be taken out in order to avoid that the instrument is eroded by battery weeping Pay attention to the use of battery and replace the battery if LCD displays the sign BATT The steps are as follows Screw out the screws for fastening the battery on back cover and remove the battery door Replace the 9V batteries with two new batteries Any standard 9V battery is available but it s best to use alkalic batteries in order to extend the service life Install the battery door and fasten the screws Fuse replacement The steps are the same as above For replacement of fuse please use fuse of the same specification and model Notes Don t connect the voltage higher than DC1000V or AC750V peak value Don t measure voltage value at AC resistance diode and buzzer levels Don t use this instrument is the batteries are not installed or the back cover is not fastened Please move the testing probes from tested points and shut down the machine before replacement of batteries or fuse 5 Troubleshooting If your instrument does not work normally the following methods may help you solve common problems If the troubles can not still be eliminated please contact our maintenance center or dealer Wn O wwa Fault phenomena Position to be inspected and method No display The power
13. is triggered for measurement of maximum value then triggered for measurement of minimum value and triggered the second time for the mea surement of the difference between the maximum and the minimum value It recycles successively this way 2 6 The key for conversion of AC DC current and diode resistance buzzer 3 Knob switch Used to change the measuring function and range 4 Voltage resistance capacitance frequency input end 5 Public ground 6 Socket for test of less than 400mA current 7 10A current test socket 3 2 DC voltage measurement Insert the black multimeter probe into COM end and the red multimeter probe into VHz end Convert the functional switch to the voltage level The instrument is initially in the state of automatic range and displays the sign AUTO after RANGE key is pressed it will turn into the mode of manual range and the ranges 400mV 4V 40V 400V and 1000V are optional Make the testing multimeter probe contact the tested point and the voltage and polarity of this point contacted by the red multimeter probe will be displayed on the screen Notes Under the mode of manual range if the LCD displays OL it indicates going beyond the range and RANGE key shall be rotated to a higher level The voltage measured shall never exceed DC1000V or the instrument circuit will possibly be damaged Never contact the high voltage circuit measured Wn S O WMT 3 3
14. serting location of red probe In case of exceeding rated current the fuse will be melted or even the instrument will be damaged e It s forbidden to input voltage exceeding DC36V or AC25V peak value at COM and mA or A end 3 8 Resistance measurement e Insert the black multimeter probe into COM hole and red multimeter probe into VHz hole e Rotate the functional switch to level and make the two multimeter probes bridge over the resistance tested Wn O MT e Press RANGE key to select automatic or manual mode e Ifthe resistance of small value is measured users shall make the multimeter probe in short circuit state press REL key once and then measure the unknown resistance In this way can we obtain the actual value of resistance Notes e Under the mode of manual range measurement if having no idea about the scope of resistance measured users shall adjust the switch to the highest level e If LCD shows OL it indicates going beyond the range and users shall adjust the range to a higher level If the resistance measured is more than 1M it will take several seconds for the reading to become stable and this is normal for measurement of high resistance e Ifthe input end is open circuited the overload sign OL will be displayed e The online resistance measurement may be started after it s confirmed that all power sources of tested circuit are cut off and all capa
15. used users shall firstly make the multimeter probes in short circuit state obtain the resistance of the down lead and then reduce it from the actually measured value 2 2 9 Capacitance Range Accuracy Resolution 10nF 5 0 20 10pF 100nF 2 0 5 100pF luF 2 0 5 InF 10uF 2 0 5 10nF 100uF 2 0 5 100nF 1000uF 5 0 5 1uF 2 2 10 Diode and on off test Range Displayed value Test conditions DIODE Voltage drop in forward direction of diode The DC current is around 0 5mA in forward direction and around 1 5V in backward direction BUZZ The buzzer rings for long time and the resistance Open circuit voltage is around 0 5V between two tested points is smaller than 4030 Overload protection DC or AC250V peak value Warning It s forbidden to input voltage value in this range for the sake of safety 2 2 11 Temperature Range Accuracy Resolution 20 1000 C lt 400 C 1 0 5 1 C gt 40014 1 5 15 4 1832 F lt 75214 1 0 5 1 F gt 752 F 1 5 15 Sensor K type nickel chromium nickel silicon Warning It s forbidden to input voltage value in this range for the sake of safety Wn t lt istsC tO OMT 3 Application Method 3 1 Description of operating panel 2 1 2 2 2 3 2 4 2 5 2 6 NO nm A w np a 4 1m e a RA OFF HA 5 V A TRUE RMS ot COM N SAS i TEMP Ui L EJ DIGITAL

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