Pen R/C Meter for SMD Model AX-503
Contents
1. A xX C i Hii MET Pen R C Meter for SMD Model AX 503 I INSTRUCTION MANUAL 1 GENERAL INSTRUCTIONS This pen R C meter for SMD could fast precise measure small chip components To get the best service from this meter please read this user s manual carefully and observe the detailed safety precautions strictly 1 1 Precautions safety measures When using this meter the user must observe all normal safety rules concerning 1 1 1 During use Use the meter before must warm up 30 seconds If the meter is used near noise generating equipment be aware that display may become unstable or indicate large errors Do not use the meter if it looks damaged Use the meter only as specified in this manual otherwise the protection provided by the meter may be impaired Do not operate the meter around explosive gas vapor or dust To avoid damages to the instrument do not exceed the maximum limits of the input values Caution Avoid working with voltages above 50VDC or 36VAC rms Such voltages pose a shock hazard and can damage the meter When using this meter keep your fingers away from the metal of the meter Before changing functions disconnect the test clip from the circuit under test Replace the battery when the e symbol appears With a low battery the meter might produce false display 1 1 2 Symbols Symbols used in this manual and on the meter A Caution refer to the instruction m2. anual Incorrect use may result in damage to the device or its components CE Conforms to IEC1010 HLLLTTTTT WWW AXIDMET EU 1 1 3 Instructions Before operating the meter always disconnect from all sources of electric current and make sure you are not charged with static electricity which may destroy internal components Any adjustment maintenance or repair work carried out on the meter while it is live should be carried out only by appropriately qualified personnel after having taken into account the instructions in this present manual If any faults or abnormalities are observed take the instrument out of service and ensure that it cannot be used until it has been checked out If the meter is not going to be used for a long time take out the battery and do not store the meter in high temperature or high humidity environment Never use the meter unless the back cover and battery cover are in place and fastened fully 2 DESCRIPTION 2 1 Instrument Familiarization cathode anode REL key FUNC key LCD display Battery cover Ou KRWN 2 2 LCD Display JH gt t Ea 0008 2 3 FUNC key Function key This key is used to select the functions of the meter Press this key once the meter will turn on ad Then press and hold this key for over 4 seconds the meter will power off EUG WWW AXIOMET EU 2 4 REL k
3. ey Relative measurement key This key is used to select the Relative measurement mode Press this key once to enter into the Relative measurement mode then press this key again it will back to the normal mode 2 5 Terminals co Terminal receiving the anode Terminal receiving the cathode Only for measuring the diode and the polar capacitance 3 TECHNICAL SPECIFICATIONS 3 1 General specifications co Environment conditions Pollution degree 2 Altitude lt 2000 m Operating temperature 0 40 C lt 80 RH non condensing Storage temperature 10 60 C lt 70 RH battery removed co Temperature Coefficient 0 1x specified accuracy C lt 18 C or gt 28 C MAX voltage between terminals and earth ground 50V DC or 36V AC rms Sample Rate 3 times sec for digital data Display 3 3 4 digits LCD display with max reading 3999 co Over Range indication LCD will display OL Low battery indication The a is displayed when the battery is under the proper operation range co Auto power off If there is no key been operated for 15 minutes the meter will auto power off to save battery energy co Power source 3 0V battery co Dimensions 181 L x35 W x20 H mm Weight 65g approx battery included EUG WWW AXIOMET EU 3 2 Measurement specifications Accuracy of reading number of digits at 18 C to 28 C 64 F to 82 F with relative humidity to 80 A Caution when wor
4. king with voltages above 50Vdc or 36Vac rms 3 2 1 Resistance Range Resolution Accuracy 400Q 0 10 4kQ 10 1 2 of rdg 3digits 40kQ 10Q 400kQ 100Q 4MQ 1kQ 40MQ 10kQ 2 0 of rdg 5 digits 3 2 2 Capacitance Range Resolution Accuracy 4nF 1pF 5 0 of rdg 5 digits 40nF 10pF 400nF 100pF 3 0 of rdg 5 digits 4uF 1nF 40uF 10nF 3 0 of rdg 5 digits 200uF 100nF Keep two pins of the capacitance in short before measuring WWW AXIDMET EU 3 2 3 Diode Test Range description Test Condition SE Display read approx forward Forward DC Current approx 1mA voltage of diode Reversed DC Voltage approx 1 5V 4 OPERATING INSTRUCTION 4 1 Resistance measurement A To avoid electrical shock or damages to the meter under test disconnect circuit power and discharge all high voltage capacitors before measuring resistance oo Select the function at mode eeConnect the test clip to the object being measured and the measured value will show on the display NOTE For measuring the high resistance above 1MQ it may take a few seconds to stabilize the reading This is normal for high resistance measuring co When the input is not connected i e at open circuit the figure OL will be displayed for the overrange condition 4 2 Capacitance measurement A To avoid electrical shock or damages to the meter under test disc
5. onnect circuit power and discharge all high voltage capacitors before measuring capacitance Keep two pins of the capacitance in short before measuring Select the function at 4 mode Connect the test clip to the capacitor being measured and read the displayed value NOTE co The meter may take a few seconds 200uF range 30 seconds to stabilize reading This is normal for high capacitance measuring co To improve the accuracy of measurements less than 4nF subtract the residual capacitance of the meter and clip Press the REL key to enter into the Relative measurement mode when it is in the open circuit state 4 3 Diode measurement A To avoid electrical shock or damages to the meter under test disconnect circuit power and discharge all high voltage capacitors before testing diodes oo Select the function at mode Connect the pin to the anode the pin to the cathode of the diode under testing co The meter will show the approx forward voltage of the diode If the lead connection is reversed only figure OL displayed 5 MAINTENANCE 5 1 General Maintenance Periodically wipe the case with a damp cloth and mild detergent Do not use abrasives or solvents 5 2 Battery replacement A Before replacing the battery disconnect test leads from any circuit under test turn the meter off and remove test leads from the input terminals Use the following procedure When the battery voltage drop
6. s below proper operation range the symbol will appear on the LCD display and the battery needs to be replaced Press the battery cover and towards arrowhead direction to open the battery cover Replace the battery with two new 1 5V batteries AG13 Replace the battery cover
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