Manual - Byram Labs
Contents
1. DC Direct Current DC i Ci a a cF AC Alternating Current AC UNF MAX Max reading oq ap ap ap a gt mVA MIN Min reading DC MkQ Ill Low battery DC Hz REL Relative an a aS aS A A V Volts Voltage a Ohms Resistance ge EEL A Amperes Current 4 F Farad Capacitance Hz Hertz Frequency Duty Ratio F and C Fahrenheit and Celsius units Temperature n m u M k Unit of measure prefixes nano milli micro mega and kilo Continuity test gt Diode test MA620 V2 1 07 08 Operation NOTES Read and understand all Warning and Caution statements in this operation manual prior to using this meter Set the function select switch to the OFF position when the meter is not in use Non Contact Voltage Detector WARNING Risk of Electrocution Before use always test the Voltage Detector on a known live circuit to verify proper operation 1 Rotate the Function switch to any measurement position 2 Place the detector probe tip on the conductor to be tested 3 If AC voltage is present the NCV detector light will turn on with a steady red light NOTE The conductors in electrical cord sets are often twisted For best results move the probe tip along a length of the cord to assure placing the tip in close proximity to the live conductor NOTE The detector is designed with high sensitivity Static electricity or other sources of energy may randomly trip the sensor This is normal oper2. button is pressed the APO timer will reset If the meter is allowed to shut off turn the function switch to the OFF position and then to the function again to restart Low battery indication When the icon appears in the display the battery should be replaced Refer to the battery replacement procedure in the maintenance section 9 MA620 V2 1 07 08 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 the meter with an 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 60 days or more remove the battery and store it separately Battery Replacement 1 Remove the Phillips head screws that secures the rear battery door 2 Open the battery compartment 3 Replace the 9V battery 4 Secure the battery compartment door Warranty EXTECH INSTRUMENTS CORPORATION a FLIR company 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 to 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 or visit our website www extech com for co
3. the LCD Press the HOLD button again to return to normal operation MAX MIN 1 Press the MAX MIN button to activate the MAX MIN recording mode The display icon MAX will appear The meter will begins recording and displaying the maximum value measured 2 Press the MAX MIN button and MIN will appear The meter will display the minimum value measured during the recording session 3 To exit MAX MIN mode press and hold the MAX MIN button for 2 seconds RANGE In the Voltage Resistance Frequency or Temperature function the meter automatically selects the best range for the measurements being made For measurement situations requiring that a range be manually selected perform the following 1 Press the RANGE button The AUTO display icon will turn off 2 Press the RANGE key to step through the available ranges Observe the decimal point and units displayed until the preferred range is located 3 To exit the Manual Ranging mode and return to Autoranging press and hold the RANGE key for 2 seconds LCD Backlight The LCD is equipped with backlighting for easier viewing especially in dimly lit areas Press and hold the HOLD button for 2 seconds to turn the backlight on The backlight will automatically turn off after 5 seconds Automatic Power OFF In order to conserve battery life the meter will automatically turn off after approximately 15 minutes of operation The meter will beep shortly before the meter shuts off If a
4. 6 MA620 V2 1 07 08 Continuity Test Rotate the function switch to the position 2 Insert the black test lead banana plug into the negative COM jack Insert the red test lead banana plug into the positive V jack 3 Press the MODE button to select continuity 4 Touch the black test probe tip to one side of the device Touch the red test probe tip to the other side of the device 5 Touch the test probe tips across the circuit or component under test 6 Ifthe resistance is lt 60Q a tone will sound Diode Test 1 Rotate the function switch to the position 2 Insert the black test lead banana plug into the negative COM jack Insert the red test lead banana plug into the positive V jack 3 Press the MODE button to select diode test gt F 4 Touch the test probe tips to the diode or semiconductor junction under test Note the meter reading 5 Reverse the test lead polarity by reversing the red and black leads Note this reading 6 The diode or junction can be evaluated as follows If one reading displays a value typically 0 400V to 01 800V and the other reading displays OL the diode is good f both readings display OL the device is open f both readings are very small or 0 the device is shorted Capacitance Measurements WARNING To avoid electric shock discharge the capacitor before measuring 4 Note For very large values of capacitance measurement time can be Rotate the function switch to t
5. User s Guide EXTECH _ INSTRUMENTS A FLIR COMPANY 600Amp AC True RMS Clamp Meter Model MA620 www byramlabs com Branchburg NJ 08876 Phone 800 766 1212 Fax 908 252 0822 Introduction Congratulations on your purchase of this Extech MA640 True RMS Clamp Meter This meter measures AC Current AC DC Voltage Resistance Capacitance Frequency Diode Test Duty Cycle and Continuity Special features include Thermocouple Temperature and Non Contact Voltage detection The double molded case is designed for heavy duty use This meter is shipped fully tested and calibrated and with proper use will provide years of 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 oO Double insulation WARNING WARNING This WARNING symbol indicates a potentially hazardous situation which if not avoided could result in death or serious injury AUTION This CAUTION symbol indicates a potentially hazardous situation which if not avoided may result damage to the product PER IEC1010 OVERVOLTAGE INSTALLATION CATEGORY OVERVOLTAGE CATEGORY Equipment of OVERVOLTAGE CATEGORY is equipment for connection to circuits in which measures are taken to limit the transient overvoltages to an appr
6. ation AC Current Measurements WARNING Disconnect the test leads before making clamp measurements 1 Rotate the Function switch to the 600A AC position 2 Press the trigger to open jaw Fully enclose only one conductor 3 Read the current value in the display 4 Ifthe value is less than 60A rotate the function switch to the 60A position to improve resolution 5 MA620 V2 1 07 08 AC DC Voltage Measurements CAUTION Do not measure voltages if a motor on the circuit is being switched ON or OFF Large voltage surges may occur that can damage the meter 1 Rotate the function switch to the V position Press the MODE button to select AC or DC Voltage Insert the black test lead banana plug into the negative COM jack Insert the red test lead banana plug into the positive V jack 4 Touch the black test probe tip to the negative side of the circuit Touch the red test probe tip to the positive side of the circuit 5 Read the voltage value in the display Resistance Measurements Note Remove power from the device under test before making resistance measurements 1 Rotate the function switch to the Q position 2 Insert the black test lead banana plug into the negative COM jack Insert the red test lead banana plug into the positive V jack 3 Touch the black test probe tip to one side of the device Touch the red test probe tip to the other side of the device 4 Read the resistance value in the display
7. eter Always remove the test leads before replacing the battery or fuses Inspect the condition of the test leads and the meter itself for any damage before operating the meter Repair or replace any damage before use Use great care when making measurements if the voltages are greater than 25VAC rms or 35VDC These voltages are considered a shock hazard Always discharge capacitors and remove power from the device under test before performing Diode Resistance or Continuity tests Voltage checks on electrical outlets can be difficult and misleading because of the uncertainty of connection to the recessed electrical contacts Other means should be used to ensure that the terminals are not live If the equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired VDC VAC 600V DC AC Resistance Capacitance Frequency Diode Test 250V DC AC Type K Temperature 30V DC 24V AC 250V DC AC 3 MA620 V2 1 07 08 Description Meter ONOaAPON gt a ow ou nu in co Pe NSS Description Current clamp Clamp opening trigger Hx Button MODE Button LCD Display Common Input jack NCV sensor NCV LED indicator HOLD BACKLIGHT Button and FUNCTION switch RANGE Button MAX MIN Button RELATIVE Button Battery compartment rear Positive Input jack Display icons Description HOLD Data Hold AUTO Autoranging AUTO MAX MIN HOLD REL gt F
8. he CAP position Insert the black test lead banana plug into the negative COM jack Insert the red test lead banana plug into the positive 16 jack Touch the black test probe tip to one side of the device Touch the red test probe tip to the other side of the device Read the capacitance value in the display several seconds before the final reading stabilizes 7 MA620 V2 1 07 08 Frequency and Duty Ratio Measurements 1 Rotate the function switch to the Hz Position 2 Press the MODE button to select AC Voltage 3 Press the HZ button to select HZ 4 Insert the black test lead banana plug into the negative COM jack Insert the red test lead banana plug into the positive Hz jack 5 Touch the black test probe tip to one side of the device Touch the red test probe tip to the other side of the device 6 Read the Frequency value on the display 7 Press the HZ button to select 8 Read the Duty Ratio on the display Type K Temperature Measurements 1 Rotate the function switch to the Temp position Press the MODE button to select F or C Insert the Temperature Probe into the input jacks Place the temperature probe tip where needed Read the temperature on the display Note In case of an open input or a temperature overrange the meter will display OL aR wo 8 MA620 V2 1 07 08 Data Hold To freeze the LCD reading press the HOLD button While data hold is active the HOLD icon appears on
9. n whole or in part in any form 12 MA620 V2 1 07 08 AN ENERGY TECHNOLOGY COMPANY www byramlabs com 1 Columbia Rd Branchburg NJ 08876 Phone 800 766 1212 Fax 908 252 0822
10. ntact information A Return Authorization RA number must be issued before any product is returned to Extech The sender is responsible 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 10 MA620 V2 1 07 08 Specifications inten range Reon oo i am es i 0 01V 1 8 8 digits DC Voltage 0 1mV 1 5 2 digits Sensitivity 15Vrms eer ot S Temperature 4 to 1400 F Type K 7 a 7 3 reading 9 F 5 C 20 to 760 C 11 MA620 V2 1 07 08 General Specifications Clamp jaw opening Display Continuity check Diode test Low Battery indication Over range indication Measurement rate Thermocouple sensor Input Impedance AC current bandwidth AC voltage bandwidth AC response Crest Factor Operating Temperature Storage Temperature Operating Humidity Storage Humidity Operating Altitude Batte
11. opriate low level Note Examples include protected electronic circuits OVERVOLTAGE CATEGORY II Equipment of OVERVOLTAGE CATEGORY II is energy consuming equipment to be supplied from the fixed installation Note Examples include household office and laboratory appliances OVERVOLTAGE CATEGORY III Equipment of OVERVOLTAGE CATEGORY III is equipment in fixed installations Note Examples include switches in the fixed installation and some equipment for industrial use with permanent connection to the fixed installation OVERVOLTAGE CATEGORY IV Equipment of OVERVOLTAGE CATEGORY IV is for use at the origin of the installation Note Examples include electricity meters and primary over current protection equipment 2 MA620 V2 1 07 08 SAFETY NOTES Do not exceed the maximum allowable input range of any function Do not apply voltage to meter when resistance function is selected Set the function switch OFF when the meter is not in use Remove the battery if meter is to be stored for longer than 60 days WARNINGS Set function switch to the appropriate position before measuring When measuring volts do not switch to current resistance modes Do not measure current on a circuit whose voltage exceeds 600V When changing ranges always disconnect the test leads from the circuit under test CAUTIONS Improper use of this meter can cause damage shock injury or death Read and understand this user manual before operating the m
12. ry Auto power OFF Dimensions amp Weight Safety Approvals 1 5 40mm approx 6000 count backlit LCD Threshold 609 Test current lt 0 35mA Test current of 0 9mA typical Open circuit voltage 2 8VDC typical Battery symbol is displayed OL display 2 readings per second nominal Type K thermocouple required 10MQ VDC and VAC 50 60Hz 50 to 400Hz True rms AAC and VAC 3 0 in 60A and 600A ranges 50 60Hz and 5 to 100 of range 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 104 F 40 C lt 80 7000ft 2000meters maximum One 1 9V Battery NEDA 1604 After approx 15 minutes with disable 9 2x3x1 53 232x77x39mm 9 56 oz 271g For indoor use and in accordance with the requirements for double insulation to IEC1010 1 2001 EN61010 1 2001 Overvoltage Category III 600V and Category II 1000V Pollution Degree 2 ce T Support line 781 890 7440 Technical support Extension 200 E mail support extech com Repair amp Returns Extension 210 E mail repair extech com Product specifications subject to change without notice For the latest version of this User s Guide Software updates and other up to the minute product information visit our website www extech com Copyright 2008 Extech Instruments Corporation a FLIR company All rights reserved including the right of reproduction i
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