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Related Manuals for Extech Instruments MA640
Summary of Contents for Extech Instruments MA640
- Page 1 User's Guide 600Amp AC/DC True RMS Clamp Meter Model MA640...
- Page 2 Introduction Congratulations on your purchase of this Extech MA640 True RMS Clamp Meter. This meter measures AC/DC 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.
- Page 3 If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. Function Maximum Input A AC/DC, 600A DC/AC V DC, V AC 600V DC/AC Resistance, Capacitance, Frequency, Diode Test 250V DC/AC Type K Temperature 30V DC, 24V AC 250V DC/AC MA640-en-GB_V2.4 5/15...
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Page 4: Meter Description
Ohms (Resistance) Amperes (Current) Farad (Capacitance) Hertz (Frequency) Duty Ratio F and Fahrenheit and Celsius units (Temperature) n, m, , M, k Unit of measure prefixes: nano, milli, micro, mega, and kilo Continuity test Diode test MA640-en-GB_V2.4 5/15... -
Page 5: Operation
DC current measurements. To perform a zero, select ADC and, with no conductor in the jaw, press and the REL button. The display will zero. The offset value is now stored and removed from all measurements. MA640-en-GB_V2.4 5/15... -
Page 6: Ac/Dc Voltage Measurements
Continuity Test Connect as described for resistance measurements. Press the MODE button to select continuity Touch the test probe tips across the circuit or component under test. If the resistance is < 60, a tone will sound. MA640-en-GB_V2.4 5/15... -
Page 7: Diode Test
Touch the red test probe tip to the other side of the device. Read the capacitance value in the display. Note: For very large values of capacitance measurement time can be several seconds before the final reading stabilizes. MA640-en-GB_V2.4 5/15... -
Page 8: Frequency And Duty Ratio Measurements
The meter will begins recording and displaying the maximum value measured. Press the MAX/MIN button and “MIN” will appear. The meter will display the minimum value measured during the recording session. To exit MAX/MIN mode press and hold the MAX/MIN button for 2 seconds. MA640-en-GB_V2.4 5/15... -
Page 9: Lcd Backlight
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. MA640-en-GB_V2.4 5/15... -
Page 10: Maintenance
You can hand over your used batteries / accumulators at collection points in your community or wherever batteries / accumulators are sold! Disposal: Follow the valid legal stipulations in respect of the disposal of the device at the end of its lifecycle MA640-en-GB_V2.4 5/15... -
Page 11: Specifications
±(1.2% + 2 digits) Pulse width: 100s to 100ms, Frequency: 10Hz to 10kHz Temperature -4 to - 1400°F 0.1° <800°; 1° >800° ±3% reading + 9°F/5°C Type K -20 to 760°C 0.1° <400°; 1° >400° Specification does not include probe accuracy MA640-en-GB_V2.4 5/15... - Page 12 232x77x39mm (9.2x3x1.53”); 271g (9.56 oz) Safety 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. Approvals Copyright © 2013‐2015 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form ISO‐9001 Certified www.extech.com MA640-en-GB_V2.4 5/15...
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