Extech MA120 Mini Clamp Meter Manual PDF
Contents
1. 5 x 32mm HWD 0 7 18mm IEC 1010 Category III 300V Category II 600V CE Function Range Resolution Accuracy of reading DC Current 200A 0 1A 2 8 8 digits AC Current 200A 0 1A 3 0 8 digits Frequency 40 51Hz 0 01Hz 1 2 5 digits Auto Ranging 51 510Hz 0 1Hz Input Sensitivity 2 54 AC RMS min 0 51 1kHz 0 001kHz Non Contact AC Voltage 100VAC to 600VAC 50 60Hz 2 MA120 Ver 1 2 10 2004 Meter Description 1 Current sense jaw 5 Data HOLD and Backlight key 2 Non contact AC voltage indicator light 6 LCD display 3 Flashlight button 7 Clamp trigger 4 Rotary function switch 8 One touch DCA ZERO key ZERO HOLD Safety Information AN Caution Refer to the explanation in this Manual Ol Double Insulation This meter has been designed to be safe in use but the operator must use caution in its operation The rules listed below should be carefully followed for safe operation 1 NEVER apply voltage or current to the meter that exceeds the specified maximum 2 USE EXTREME CAUTION when working with voltages greater than 60VDC or 25VAC rms These voltages are considerd a shock hazard 3 NEVER operate the meter unless the back cover and the battery fuse door are in place and fastened securely Input Limits Function Maximum Input AC Current 200A DC Current 200A Frequency 1kHz 3 MA120 Ver 1 2 10 2004 Opera2. User s Guide EXTECH INSTRUMENTS Model MA120 200A AC DC Mini Clamp on Meter MA120 AC DC CLAMP METER ZERO HOLD SC SNM ce KUJAA Non contact Voltage Detector and Flashlight INSTRUMENTS 3 2 3 digit 2400 count LCD display White LED backlight Built in non contact AC voltage detector plus flashlight Frequency measurement 40Hz to 1kHz Autoranging with auto power off 0 7 18mm Jaw opening Introduction Congratulations on your purchase of Extech s MA120 AC DC Mini Clamp Meter This professional meter with proper care will provide years of safe reliable service Specifications General Specifications Display Polarity Current sensor Overload indication DCA zero adjust Display rate Battery Low Battery indication Operating conditions Storage conditions Altitude Weight Dimensions Jaw opening Standards Range Specifications 3 2 3 2400 count Digit LCD with white LED backlight Minus sign indicates negative polarity Hall effect sensor type OL displayed on the LCD One touch zero key 2 readings second nominal Two 1 5V AAA batteries BATT displayed on the LCD 32 F to 86 F 0 C to 30 C 90 RH 86 F to 104 F 30 C to 40 C 75 RH 104 F to 122 F 40 C to 50 C 45 RH 14 F to 140 F 30 C to 60 C lt 90 Relative Humidity Operate at less than 3000 meters 6 2 oz 176g including battery 6 5 x 2 6 x 1 3 164 x 6
3. ech offers repair and calibration services for the products we sell Extech also provides NIST certification for most products Call the Customer Service Department for information on calibration services available for this product Extech recommends that annual calibrations be performed to verify meter performance and accuracy Warranty EXTECH INSTRUMENTS CORPORATION warrants the basic 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 EXTENSION 210 for authorization or visit www extech com for more 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 warra
4. he Function switch to the Hz position 2 Fully enclose the conductor to be measured Do not allow a gap between the two halves of the jaw 3 Read the Frequency value on the LCD Flashlight Press and hold the top button to turn the flashlight on Release the button to turn the flashlight off Data Hold To freeze the current reading on the LCD press the Hold Backlight key The word HOLD will appear on the LCD while the meter is in the Data Hold mode To release the Data Hold function and return the meter to normal operation press the Hold Backlight key again The word HOLD will switch off 4 MA120 Ver 1 2 10 2004 Backlight Display Press and hold the Hold Backlight key for more than 2 seconds to turn on the backlight This will also activate the Data Hold function To release the Data Hold function and return the meter to normal operation press the Data Hold key momentarily To turn off the backlight press and hold the Hold Backlight key for more than 2 seconds Maintenance Battery Replacement 1 2 3 4 When the low battery symbol appears on the LCD the batteries must be replaced Power down and remove the rear battery compartment Phillips screw Lift off the battery compartment cover and replace the two 1 5V AAA cells Replace compartment cover and secure the screw Cleaning Caution Use only a dry cloth to clean the plastic case Calibration and Repair Services Ext
5. nty set forth above is inclusive and no other warranty whether written or oral is expressed or implied Tam a4 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 2004 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form 5 MA120 Ver 1 2 10 2004
6. tion AC Current Measurements 1 Set the Function switch to the ACA range 2 Press the jaw trigger and clamp around fully enclosing a single Yes conductor Do not allow a gap between the two halves of the jaw Refer to the diagram at right for the correct way to enclose a single conductor 3 Read the ACA value on the LCD No DC Current Measurements 1 Set the Function switch to the DCA range Press the ZERO key to null the meter display 3 Press the Trigger to open the current sense Jaw Fully enclose the conductor to be measured Do not allow a gap between the two halves of the jaw 5 Read the DCA value on the LCD Non Contact AC Voltage Detection WARNING Risk of Electrocution Before use always test the Voltage Detector on a known live circuit to verify proper operation 1 AC Voltage detection operates on any of the four Function switch positions 2 Touch the probe tip to the hot conductor or insert into the hot side of the electrical outlet 3 If AC voltage is present the detector light will illuminate NOTE The conductors in electrical cord sets are often twisted For best results slowly slide 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 turn the detector light on This is normal operation Frequency Measurements 1 Set t
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