am-220 & am-240 digital multimeter operation
Contents
1. symbol will appear on the LCD the batteries needs to be changed 2 Before changing the batteries set the selector switch to OFF position Remove the two screws on the bottom case and lift the bottom case 3 Replace the old batteries with the same type battery 4 Close the bottom case and fasten the screw 5 FUSE REPLACEMENT 1 This meter is provided with a 0 5A 250V fuse to protect the current measuring circuits that measure up to 400mA with a 10A 250V fuse to protect the 10A range 2 Ensure the instrument is not connected to any external circuit set the selector switch to OFF position and remove the test leads from the terminals 3 Remove the two screws on the bottom case and lift the bottom case Replace the old fuse with the same type and rating 5x20mm 0 5A 250V or 6x32mm 10A 250V fuse 4 Close the bottom case and fasten the screws 6 MAINTENANCE 1 Before opening the bottom case disconnect both test leads and never use the meter before the bottom case is closed 2 To avoid contamination or static damage do not touch the circuit board without proper static protection 3 If the meter is not going to be used for a long time take out the batteries and do not store the meter in high temperature or high humidity environment 4 Repairs or servicing not covered in this manual should only by qualified personnel 5 Periodically wipe the case with a dry cloth and detergent Do not use abrasives o2. amprcse AM 220 amp AM 240 DIGITAL MULTIMETER OPERATION MANUAL 1 SAFETY INFORMATION SAFETY SYMBOLS Warning Dangerous Voltage Risk of electric shock AN Caution Refer to the manual before using this Meter Double Insulation Protection Class Alternating Current Direct Current Either DC or AC Ground maximum permitted voltage between terminal and ground The RESPONSIBLE BODY shall be made aware that if the instrument is used in a manner not specified by the manufacturer the protection provided by the instrument may be impaired A The finger or any part of your body shall not be beyond the barrier of the test probe when measuring The following safety information must be observed to insure maximum personal safety during the operation at this meter 1 1 not operate the meter if the body of meter or the test leads look broken 1 2 Check the rotary selector switch to make sure it is at the correct position before each measurement 13 When making current measurements ensure that the circuit has no voltage before opening it in order to connect the test leads 14 Do not perform resistance capacitance temperature diode and continuity test when voltage is present 1 5 Do not apply voltage between the test terminals and test terminal to ground that exceed the maximum limit record in this manual 1 6 Exercise extreme caution when measuring live system with vol
3. Accuracy specification is relative to the user adjustable temperature offset and assumes ambient temperature stable to 1 C For ambient temperature changes of 5 C rated accuracy applies after 1 hour Does not include error of the thermocouple probe 58 F 1292 F 1 3 F 50 C 700 1 2 C Overload protection 250V DC RMS 3 OPERATION 3 1 DC VOLTAGE MEASUREMENT 1 Connect the black test lead to COM socket and red test lead to the VO mA socket 2 Set the selector switch to V position 3 Measure the voltage by touch the test lead tips to the test circuit where the value of voltage is needed 4 Read the result from the LCD panel 3 2 AC VOLTAGE MEASUREMENT 1 Connect the black test lead to COM socket and red test lead to the VO mA socket 2 Set the selector switch to position 3 Measure the voltage by touch the test lead tips to the test circuit where the value of voltage is needed 4 Read the result from the LCD panel 3 3 DC AND AC CURRENT MEASUREMENT 1 Connect the black test lead to COM socket For measurement up to 400mA connect the red test lead to the socket for measurement from 400mA to 10A connect the red test lead to the 10A socket 2 Set the selector switch to desired mA or position 3 Press SELECT key to choose DC or AC measurement 4 Remove power from the circu
4. RMS Impedance 10MQ More than 100MQ on 400mV range 2 2 2 AC VOLTAGE Average sensing calibrated to RMS of sine wave Frequency 40 400Hz Overload protection 600V DC or AC RMS Impedance 10MQ More than 100MQ 400mV range 1 0 2 2 2 3 DC CURRENT 1 2 3 10 400 100 2 0 5 Overload protection 0 5A 250V 10 250 fuse 2 2 4 AC CURRENT 400 1 5 3 2 5 5 Average sensing calibrated to RMS of sine wave Frequency 40 400Hz Overload protection 0 5A 250V 10A 250V fuse 2 2 5 RESISTANCE 1 0 2 Overload protection 250V DC or AC RMS 2 2 6 CAPACITANCE 2 5 5 40uF 20 090 20 Overload protection 250V DC or AC RMS 2 2 7 DIODE AND AUDIBLE CONTINUITY TEST Test condition Display read Forward DC current approximately approx 0 4mA forward voltage Reversed DC of diode voltage approx 2 8V Built in buzzer Open circuit voltage sounds if approx 0 5V resistance 15 less than 50 _ Overload protection 250V DC or AC RMS 2 2 8 FREQUENCY Resolution 0 01Hz 0 1Hz 1 2 0 1 5 10Hz 100Hz 1kHz 10kHz Sensitivity sine wave 0 6V RMS 10MHz 1 5V RMS Overload protection 250V DC or AC RMS 2 2 9 DUTY CYCLE 0 1 99 9 2 0 2 Frequency lower than 10kHz Sensitivity sine wave 0 6V RMS Overload protection 250V DC or AC RMS 2 2 10 TEMPERATURE AM 240 ONLY
5. h to desired 70 position 3 Press SELECT key to choose Diode or Audible Continuity measurement 4 Connect the test leads across the diode under test display measures the approx forward voltage of this diode 5 Connect the test leads to two point of circuit if the resistance is lower than approx 50Q the buzzer sounds Note Make sure the power is cut off and all capacitors need to be discharged under this measurement 3 7 FREQUENCY AND DUTY CYCLE MEASUREMENT 1 Connect the black test lead to COM socket and red test lead to the socket 2 Set the selector switch to desired Hz position 3 Press Hz key to choose Frequency or Duty cycle measurement 4 Connect the probe across the source or load under measurement 5 Read the result from the LCD panel 3 8 TEMPERATURE MEASUREMENT 1 Set the selector switch to desired F C position 2 Press SELECT key to choose F or C measurement 3 There is an internal PN Junction Diode Sensor which measures ambient temperature with no probe connected This is the 0 40 in the spec 4 Connect the probe included or any K type thermocouple by inserting the in VOmA socket the the COM socket 5 Put the sensor probe into the temperature field under measurement 3 9 DATA HOLD AND BACK LIGHT On any range press the gt 2sec key to lock display value and the HOLD sign will appear on
6. it under test and open the normal circuit path where the measurement is to be taken Connect the meter in series with the circuit 5 Read the result from the LCD panel 3 4 RESISTANCE MEASUREMENT 1 Connect the black test lead to COM socket and red test lead to the socket 2 Set the selector switch to desired 70 position 3 Connect tip of the test leads to the points where the value of the resistance is needed 4 Read the result from the LCD panel Note When measuring resistance values from a circuit make sure the power is off and discharge all capacitors 3 5 CAPACITANCE MEASUREMENT 1 Connect the black test lead to COM socket and red test lead to the mA socket 2 Set the selector switch to desired 70 position 3 Press SELECT key to choose Capacitance measurement 4 Connect tip of the test leads to the points where the value of the Capacitance is needed 5 Read the result from the LCD panel Note a Before testing discharge the capacitor by shorting its leads together Use caution in handling capacitors because they may have a charge on them of considerable power b Before testing press REL A key to eliminate the zero error When testing 4000 capacitor note that there will be approx 30 seconds time lag 3 6 DIODE AND AUDIBLE CONTINUITY TEST 1 Connect the black test lead to COM socket and red test lead to the mA socket 2 Set the selector switc
7. r solvents on the meter LIMITED WARRANTY Congratulations Your new instrument has been quality crafted according to quality standards and contains quality components and workmanship It has been inspected for proper operation of all of its functions and tested by qualified factory technicians according to the long established standards of our company Your instrument has a limited warranty against defective materials and or workmanship for one year from the date of purchase provided that in the opinion of the factory the instrument has not been tampered with or taken apart Should your instrument fail due to defective materials and or workmanship during this one year period a no charge repair or replacement will be made to the original purchaser Please have your dated bill of sale which must identify the instrument model number and serial number and call the number listed below Repair Department ATP Amprobe Phone 954 499 5400 Toll Free 800 327 5060 Fax 866 287 7222 Website www Amprobe com Please obtain an RMA number before returning product for repair Outside the U S A the local representative will assist you Above limited warranty covers repair and replacement of instrument only and no other obligation is stated or implied www Amprobe com
8. tage greater than 60V DC or 30V AC 17 Change the battery when the symbol appears to avoid incorrect data 2 SPECIFICATIONS 2 1 GENERAL SPECIFICATIONS Display LCD with a max reading of 4000 Range control Auto range amp Manual range control Polarity Automatic negative polarity indication Zero adjustment Automatic Overrange indication The OL or OL display Low battery indication Display sign Data hold Display HOLD sign Relative measurement Display A sign Auto Power Off Display sign After 10 minutes without switching modes pressing a key the meter will switch to standby mode Press any key or switch selector switch to exit standby mode To disable auto power off press and hold SELECT key while rotating the selector switch from off position Safety standards The meter is up to the standards of IEC1010 Double Insulation Pollution Degree 2 Overvoltage Category III Operating environment Temperature 32 to104 F 0 C to 40 C Humidity lt 80 RH Storage environment Temperature 4 to140 F 20 C to 60 C Humidity lt 90 RH Power supply 2x1 5V AA batteries Dimension 156 H x 86 W x 38 D mm Weight Approx 260g including battery 2 2 ELECTRICAL SPECIFICATIONS Accuracies are of reading number in last digit at 23 5 C lt 75 RH 2 2 1 DC VOLTAGE 400mV 0 590 2 Overload protection 600V DC or AC
9. the display press it again to exit On any range press the gt 2sec key for more than 2 seconds to light the back light press it again for more than 2 seconds to wink the light 3 10 MAX MIN HOLD Press the MAX MIN key to lock or MIN value and the or MIN sign will appear on the display press it for more than 2 seconds to exit 3 11 RELATIVE MEASUREMENT Press the REL key you can measure the relative value and A sign will appear on the display the auto range mode be changed to manual range mode Press it again to exit relative measurement and A sign disappears but you cannot go back to auto range mode This function is non effective on Hz measurement 3 12 AUTO MANUAL RANGE The auto range mode is a convenient function but it might be faster to manually set the range when you measure values that you know to be within a certain range To select manual range repeatedly press RANGE key until the display shows the desired range The range steps upward as you press RANGE key The meter will go back to auto range mode when you press RANGE key for more than 2 seconds It can not select manual range mode on Hz capacitance and temperature range Caution while using the manual range mode if OL sign appears on the display immediately set range to a higher 4 BATTERY REPLACEMENT 1 When the battery voltage drops below proper operating range the
Download Pdf Manuals
Related Search