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1. AMPROBE AM 220 AM 240 Digital Multimeter User Manual Test Equipment 99 Washington Street Depot Melrose MA 02176 1 781 665 1400 1 800 517 8431 1 800 517 8431 b Visit us at Www lestEquipmentDepot com AAMPROBE AM 220 AM 240 Digital Multimeter T 5 5 v 5 e AM 220_AM 240 Rev003 2010 Amprobe Test Tools All rights reserved Limited Warranty and Limitation of Liability Your Amprobe product will be free from defects in material and workmanship for 1 year from the date of purchase This warranty does not cover fuses disposable batteries or damage from accident neglect misuse alteration contamination or abnormal conditions of operation or handling Resellers are not authorized to extend any other warranty on Amprobe s behalf To obtain service during the warranty period return the product with proof of purchase to an authorized Amprobe Test Tools Service Center or to an Amprobe dealer or distributor See Repair Section for details THIS WARRANTY IS YOUR ONLY REMEDY ALL OTHER WARRANTIES WHETHER EXPRESS IMPLIED OR STAUTORY INCLUDING IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY ARE HEREBY DISCLAIMED MANUFACTURER SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES ARISING FROM ANY CAUSE OR THEORY Since some states or countries do not allow the exclusion or limitation of an
2. Connect the black test lead to COM socket For measurement up to 400mA con nect the red test lead to the VO mA socket for measurement from 400mA to 10 connect the red test lead to the 10A socket Press SELECT key to choose DC or AC measurement Remove power from the circuit under test and open the normal circuit path where the measurement is to be taken Connect the meter in series with the circuit Read the result from the LCD panel RESISTANCE MEASUREMENT 1 2 3 4 Set the selector switch to desired Q gt position Connect the black test lead to COM socket and red test lead to the VO mA socket Connect tip of the test leads to the points where the value of the resistance is needed 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 CAPACITANCE MEASUREMENT 1 Set the selector switch to desired 2 gt position 2 Connect the black test lead to COM socket and red test lead to the VO mA socket 3 Press SELECT key to choose Capacitance measurement 4 oe tip of the test leads to the points where the value of the capacitance is nee 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 t
3. to be used for a long time take out the batteries and do not store the meter in high temperature or high humidity environment Repairs or servicing not covered in this manual should only by qualified personnel Periodically wipe the case with a damp cloth and detergent Do not use abrasives or solvents on the meter 10
4. 32 F to104 F Humidity lt 80 RH Temperature 20 C to 60 C 4 F to140 F Humidity lt 90 RH 2x1 5V AA batteries 156 H 86 W 38 0 mm 6 1 x 3 4 x 1 5 Approx 2600 9 2 oz including battery ELECTRICAL SPECIFICATIONS Accuracies are of reading number in last digit at 23 5 C lt 75 RH DC VOLTAGE 400mV V 40V 0 1mV 1mV 0 5 2 10mV 100mV 0 8 3 1 Overload protection 600V DC AC RMS Impedance 10MQ More than 100MQ on 400mV range 3 AC VOLTAGE 400V 100mV Average sensing calibrated to RMS of sine wave Frequency 40 400Hz Overload protection 600V DC or AC RMS Impedance 10M9 More than 100MQ on 400mV range DC CURRENT 400 0 1pA 1 2 3 400mA 100 2 0 5 Overload protection 0 5A 250V 10A 250V fuse AC CURRENT 400 0 1pA 1 5 3 100A 400mA 100 2 5 5 Average sensing calibrated to RMS of sine wave Frequency 40 400Hz Overload protection 0 5A 250V 10A 250V fuse RESISTANCE Overload protection 250V DC or AC RMS CAPACITANCE Overload protection 250V DC or AC RMS DIODE AND AUDIBLE CONTINUITY TEST Display read approximately Forward DC current approx 0 4mA p e forward voltage of diode Reversed DC voltage approx 2 8V Built in buzzer sounds if resistance Open circuit voltage approx 0 5V is less than 50 Overload protection 250V DC or AC RMS FREQUE
5. NCY Sensitivity sine wave 0 6V RMS 10MHz 1 5V RMS Overload protection 250V DC or AC RMS 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 TEMPERATURE AM 240 ONLY e Accuracy specification is relative to the user adjustable temperature offset and assumes ambient temperature stable to 1 C e For ambient temperature changes of x 5 C rated accuracy applies after 1 hour e Does not include error of the thermocouple probe 58 F 1292 F 2 8 9 F 1 1 F 50 C 700 C 2 8 7 C Overload protection 250V DC RMS Operation DC VOLTAGE MEASUREMENT 1 2 3 4 Set the selector switch to V position Connect the black test lead to COM socket and red test lead to the VO mA socket Measure the voltage by touch the test lead tips to the test circuit where the value of voltage is needed Read the result from the LCD panel AC VOLTAGE MEASUREMENT 1 2 3 4 Set the selector switch to V position Connect the black test lead to COM socket and red test lead to the VO mA socket Measure the voltage by touch the test lead tips to the test circuit where the value of voltage is needed Read the result from the LCD panel DC AND AC CURRENT MEASUREMENT 1 2 3 4 5 on Set the selector switch to desired pA 222 or Az position
6. ect 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 BATTERY REPLACEMENT 1 2 3 4 When the battery voltage drops below proper operating range the symbol will appear on the LCD and the batteries needs to be changed Before changing the batteries set the selector switch to OFF position Remove the two screws on the bottom case and lift the bottom case Replace the old batteries with the same type battery Close the bottom case and fasten the screw FUSE REPLACEMENT 1 2 3 4 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 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 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 Close the bottom case and fasten the screws MAINTENANCE 1 2 3 4 5 Before opening the bottom case disconnect both test leads and never use the meter before the bottom case is closed To avoid contamination or static damage do not touch the circuit board without proper static protection If the meter is not going
7. esting press REL A key to eliminate the zero error c When testing 4000pF capacitor note that there will be approx 30 seconds time lag DIODE AND AUDIBLE CONTINUITY TEST 1 2 3 4 5 Set the selector switch to desired 2 gt position Connect the black test lead to COM socket and red test lead to the VQ mA socket Press SELECT key to choose Diode or Audible Continuity measurement Connect the test leads across the diode under test display measures the approx for ward voltage of this diode Connect the test leads to two point of circuit if the resistance is lower than approx 500 the buzzer sounds Note Make sure the power is cut off and all capacitors need to be discharged under this measurement FREQUENCY AND DUTY CYCLE MEASUREMENT 1 2 3 4 5 Set the selector switch to desired Hz position Connect the black test lead to COM socket and red test lead to the VQ mA socket Press 2 key to choose Frequency or Duty Cycle measurement Connect the probe across the source or load under measurement Read the result from the LCD panel TEMPERATURE MEASUREMENT AM 240 Only 1 Set the selector switch to desired F 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 Connec
8. implied warranty or of incidental or consequential damages this limitation of liability may not apply to you Repair All test tools returned for warranty or non warranty repair or for calibration should be accom panied by the following your name company s name address telephone number and proof of purchase Additionally please include a brief description of the problem or the service request ed and include the test leads with the meter Non warranty repair or replacement charges should be remitted in the form of a check a money order credit card with expiration date or a purchase order made payable to Amprobe Test Tools In Warranty Repairs and Replacement All Countries Please read the warranty statement and check your battery before requesting repair During the warranty period any defective test tool can be returned to your Amprobe Test Tools distribu tor for an exchange for the same or like product Please check the Where to Buy section on www amprobe com for a list of distributors near you Additionally in the United States and Canada In Warranty repair and replacement units can also be sent to a Amprobe Test Tools Service Center see address below Non Warranty Repairs and Replacement US and Canada Non warranty repairs in the United States and Canada should be sent to a Amprobe Test Tools Service Center Call Amprobe Test Tools or inquire at your point of purchase for current repair and replacement rates No
9. n Warranty Repairs and Replacement Europe European non warranty units can be replaced by your Amprobe Test Tools distributor for a nominal charge Please check the Where to Buy section on www amprobe com for a list of distributors near you AM 220 AM 240 Digital Multimeter Contents 4 SpecificatiOhs Loic eei iie tai ee dae aec side 5 Operation Safety Information SAFETY SYMBOLS eee Complies with European Directives Either DC or AC ot 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 The finger or any part of your body shall not be beyond the barrier of the test probe when measuring Conforms to relevant Australian standards Do not dispose of this product as unsorted municipal waste The following safety information must be observed to insure maximum personal safety during the operation at this meter 1 1 Do 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 1 3 When making current measurements ensure that the circuit has no voltage before opening it in order to connect the
10. t the probe included or any K type thermocouple by inserting the plug in the VO mA socket amp the in the COM socket 5 Put the sensor probe into the temperature field under measurement DATA HOLD AND BACK LIGHT On any range press the DH 3 2sec key to lock display value and the 4 sign will appear on the display press it again to exit On any range press the DH 3 amp 2sec key for more than 2 seconds to light the back light press it again for more than 2 seconds to wink the light MAX MIN HOLD Press the MAX MIN key to lock MAX or MIN value and the MAX or MIN sign will appear on the display press it for more than 2 seconds to exit 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 sign disappears but you cannot go back to auto range mode This function is non effective on Hz measurement 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 sel
11. test leads 1 4 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 voltage greater than 60V DC or 30V AC 1 7 Change the battery when the symbol appears to avoid incorrect data Specifications GENERAL SPECIFICATIONS Display Range control Polarity Zero adjustment Overrange indication Low battery indication Data hold Relative measurement Auto Power Off Safety standards Operating environment Storage environment Power supply Dimension Weight LCD with a max reading of 4000 Auto range amp Manual range control Automatic negative polarity indication Automatic The OL or OL display Display sign Display HOLD sign Display A sign Display sign After 10 minutes without switching modes or pressing a key the meter will switch to standby mode Press any key or switch selector switch to exit standby mode To dis able auto power off press and hold SELECT key while rotating the selector switch from off position EMCALVD The meter is up to the standards of EN61010 1 2001 Double Insulation Pollution Degree 2 Overvoltage Category 111 600 Temperature 0 C to 40 C

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