User`s Guide 400A AC/DC Clamp Meter Model MA220
Contents
1. 1 2 2 digits Pulse Width 100us 100ms Frequency 5Hz to 150KHz Temperature 50 0 to 400 0 C 50 0 to 20 0 C 7 C 20 0 to 400 0 C 400 to 1000 C 58 0 to 400 0 F 400 to 1000 C 58 0 to 0 F 0 to 400 0 F 400 to 1832 F 400 to 1832 F 3 5 C 14 F 2 5 6 digits 3 7 F MA220 V1 3 10 06 Jaw size Display Continuity Diode Test AC V bandwidth AC A bandwidth Low battery indication Overrange indication Auto Power OFF Measurement rate Input Impedance Operating Temperature Storage Temperature Operating Humidity Storage Humidity Operating Altitude Batteries Weight Size Safety 0 9 23mm approx 4000 count LCD Audible tone lt 1500 approx Open circuit voltage lt 1 5VDC Test current 0 3mA typical 50Hz to 400Hz 50 60Hz is displayed OL is displayed After 30 minutes 2 per second nominal 7 8MQ V DC and V AC 41 F to 104 F 5 C to 40 C 4 F to 140 F 20 C to 60 C Max 80 up to 87 F 31 C decreasing linearly to 50 at 113 F 45 C lt 80 6560ft 2000meters operating 2 1 5V AAA batteries 0 44lb 200g 7 87 x 1 97 x 1 38 200x50x35mm For indoor use and in accordance with the requirements for double insulation to IEC1010 1 1995 EN61010 1 1995 Overvoltage Category III Pollution Degree 2 4 MA220 V1 3 10 06 Meter Description 1 Conducto2. AC Voltage Measurements 1 Setthe rotary function switch to the Volts Hz position 2 Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive V Q Temp jack 3 Select AC or DC with the MODE button 4 Connect the test leads to the circuit under test 5 Read the voltage on the display The display will indicate the proper decimal point and value Resistance Measurements 1 Set the function switch to the Q Jr CAP position 2 Insert the black test lead banana plug into the negative COM jack Insert the red test lead banana plug into the positive VO Temp jack 3 Touch the test probe tips across the circuit or part under test It is best to disconnect one side of the part under test so the rest of the circuit will not interfere with the resistance reading 4 Read the resistance on the display The display will indicate the proper decimal point and value Continuity Check 1 Set the function switch to the HH CAP position 2 Push the mode button to indicate on the display 3 Insert the black lead banana plug into the negative COM jack Insert the red test lead banana plug into the positive VQ jack 4 Touch the test probe tips to the circuit or wire you wish to check 5 If the resistance is less than approximately 1500 the audible signal will sound If the circuit is open the display will indicate OL 6 MA220 V1 3 10 06 Diode Tes
3. TAGE CATEGORY III This meter meets the IEC 610 1 95 standard for OVERVOLTAGE CATEGORY III Cat III meters are protected against overvoltage transients in fixed installation at the distribution level Examples include switches in the fixed installation and some equipment for industrial use with permanent connection to the fixed installation 2 MA220 V1 3 10 06 Specifications Function Range Accuracy of reading DC Current 40 00 ADC 0 20 00 ADC 2 5 6 digits 20 00 40 00 ADC 3 6 digits 400 0 ADC 0 300 0 ADC 2 5 6 digits 300 0 400 0 ADC 3 5 6 digits AC Current 40 00 AAC 0 20 00 AAC 3 10 digits 20 00 40 00 AAC 5 10 digits 400 0 AAC 0 300 0 AAC 3 10 digits 300 0 400 0 AAC 5 10 digits DC Voltage 400 0mV 0 8 3 digits 4 000V 40 00V 1 5 3 digits 400 0V 600V 2 0 3 digits AC Voltage 400 0mV 1 10 digits 4 000V 40 00V 2 5 digits 400 0V 600V 2 5 digits Resistance 400 00 1 0 4 digits 4 000kQ 40 00kQ 1 5 2 digits 400 0kQ 4 000 MQ 2 5 3 digits 40 00MQ 3 5 5 digits Capacitance 40 00nF 5 30 digits 400 0nF 3 5 digits 4 000uF 3 5 5 digits 40 00uF 100 0uF 5 5 digits Frequency 5 000Hz 1 5 5 digits 50 00Hz 1 2 2 digits 500 0Hz Sensitivity 5 5KHz 5 000KHz 10Vrms min 50 00KHz 5KHz 150KHz 150 0KHz 40Vrms min Duty Cycle 0 5 to 99 0
4. User s Guide EXTECH INSTRUMENTS 400A AC DC Clamp Meter Model MA220 Introduction Thank you for selecting the Extech MA200 AC DC Clamp Meter This meter measures ACIDC Current AC DC Voltage Resistance Capacitance Frequency Duty Cycle Temperature Diode Test and Continuity This professional meter with proper care will provide years of safe reliable service Safety International Safety Symbols This symbol adjacent to another symbol or terminal indicates the user must refer to the manual for further information This symbol adjacent to a terminal indicates that under normal use hazardous voltages may be present a gt gt Double insulation A UL mark does not indicate that this product has been evaluated for the accuracy of its readings SAFETY NOTES e Do not exceed the maximum allowable input range of any function e Do not apply voltage to meter when resistance function is selected e Setthe function switch OFF when the meter is not in use e Remove the battery if meter is to be stored for longer than 60 days WARNINGS e Set function switch to the appropriate position before measuring e When measuring volts do not switch to current resistance modes e Do not measure current on a circuit whose voltage exceeds 240V e When changing ranges using the selector switch always disconnect the test leads from the circuit under test e Do not exceed the maximum rated input limits OVERVOL
5. atabase 100 Free Datasheet Search Site 100 Free IC Replacement Search Site Convenient Electronic Dictionary Fast Search System www EEworld com cn All Datasheets Cannot Be Modified Without Permission Copyright Each Manufacturing Company
6. e for shipping charges freight insurance and proper packaging to prevent damage in transit This warranty does not apply to defects resulting from action of the user such as misuse improper wiring operation outside of specification improper maintenance or repair or unauthorized modification Extech specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct indirect incidental or consequential damages Extech s total liability is limited to repair or replacement of the product The warranty set forth above is inclusive and no other warranty whether written or oral is expressed or implied Repair and Calibration Services Extech offers complete repair and calibration services for all Extech products For periodic calibration NIST certification or repair of any Extech product call customer service for details on services available Extech recommends that calibration be performed on an annual basis to insure calibration integrity Lj dd Support Hotline 781 890 7440 Tech support Ext 200 Email support extech com Repair Returns Ext 210 Email repair extech com Website www extech com Copyright 2004 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form 9 MA220 V1 3 10 06 YI 1BUR This datasheet has been downloaded from www EEworld com cn Free Download Daily Updated D
7. ight is turned on Press the HOLD button again to exit the Hold feature Zero Button Zeros Capacitance and DC Current measurements Also allows the user to offset the meter by using the displayed value as the zero reference value Press the ZERO key momentarily to activate and to exit Zero mode 8 MA220 V1 3 10 06 Maintenance WARNING To avoid electrical shock disconnect the meter from any circuit remove the test leads from the input terminals and turn OFF the meter before opening the case Do not operate with open case Cleaning and Storage Periodically wipe the case with a damp cloth and mild detergent do not use abrasives or solvents If the meter is not to be used for periods of longer than 60 days remove the batteries and store them separately Battery Replacement 1 Remove the two rear Phillips head screws 2 Open the battery compartment 3 Replace the two 1 5V AAA batteries 4 Re assemble the meter Warranty EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment a six month limited warranty applies on sensors and cables If it should become necessary to return the instrument for service during or beyond the warranty period contact the Customer Service Department at 781 890 7440 ext 210 for authorization A Retum Authorization RA number must be issued before any product is retumed to Extech The sender is responsibl
8. r jaws 2 Jaw opening trigger 3 Function select switch 4 LCD Display 5 ZERO button 6 Data Hold and Backlight Button T Mode select button 8 Range select button 9 Hz Duty Cycle button 10 COM input jack 11 V Q Temp jack 12 Battery cover rear AC AC alternating current DC DC direct currrent n Minus sign AUTO AutoRange mode ZERO ZERO mode Audible Continuity AUTO gt HOLDZEROk MQ Hz uFmV HOLD Data Hold mode B Low Battery icon DC Fl NW Fl i AC gt Diode test mode a p SD m milli F V Volts A Amps P UD K kilo M Mega Q Ohms F Degrees Fahrenheit C Degrees Centigrade 5 MA220 V1 3 10 06 Operation Notice Read and understand all WARNING and CAUTION statements listed in the safety section of this operation manual prior to using this meter Set the function select switch to the OFF position when the meter is not in use DC AC Current Measurements Warning Disconnect the test leads from the meter before making LT current clamp measurements 1 Set the Function switch to the 400ADC 40ADC 400AAC or 40AAC range If the range of the measured is not known select the higher range first then move to the lower range if necessary 2 For DC current measurement press the ZERO key to null the meter display 3 Press the trigger to open jaw Fully enclose one conductor to be measured 4 The clamp meter LCD will display the reading DC
9. t 1 Turn the rotary switch to the Q CAP position Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive VQ jack Push the mode button to indicate on the display Touch the test probes to the diode under test Typically for a normal diode forward voltage will indicate 0 4V to 0 7V Reverse voltage will indicate OL Shorted devices will indicate near OV and an open device will indicate OL in both polarities Capacitance Measurements Warning To avoid electrical shock disconnect power to the unit under test and discharge all capacitors before taking any capacitance measurements Remove the batteries and unplug the line cords 5 6 Set the function switch to the Q Pt CAP position Push the mode button to indicate nF on the display Insert the black lead banana plug into the negative COM jack and insert the red test lead banana plug into the positive VOTemp jack Press the ZERO key to null the meter display Touch the test probe tips to the capacitor you wish to check Read the capacitance value on the display Frequency or Duty Cycle Measurements 1 2 3 A Turn the rotary switch to the Volts Hz position Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive VQ jack Select Hz or with the HZ button Touch the test probe tips to the circ
10. uit under test Read the frequency on the display 7 MA220 V1 3 10 06 Temperature Measurements 1 Turn the rotary switch to the Temp position 2 Insert the Temperature Probe into the negative COM and the VOTemp jacks making sure to observe correct polarity 3 Select C or F with the MODE button 4 Touch the temperature probe head to the part whose temperature you wish to measure Keep the probe touching the part under test until the reading stabilizes 5 Read the temperature on the display Warning To avoid electrical shock be sure the thermocouple has been removed before changing to another measurement function Auto Manual Ranging The meter turns on in Autoranging mode Press the RANGE button to enter manual ranging Each press of the range button will step to the next range as indicated by the units and decimal point location Press and hold the RANGE button for two seconds to return to Autoranging mode Note Manual ranging does not function in AC Current or Diode and Continuity check functions In Temperature function it will change the resolution from 0 1 to 1 Data Hold To freeze the LCD meter reading press the HOLD button While data hold is active the HOLD display icon appears on the LCD Press the HOLD button again to return to normal operation Backlight Press and hold the HOLD button for gt 2 seconds to turn the backlight on off Note The HOLD feature will activate when the backl
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