Extech Instruments EX623 User Manual Download | Manualshive

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User's Guide

400Amp True RMS AC/DC Clamp
Meter with IR Thermometer

Model EX623

Patented

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Summary of Contents for EX623

Page 1: ...User s Guide 400Amp True RMS AC DC Clamp Meter with IR Thermometer Model EX623 Patented ...

Page 2: ...t in death or serious injury 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 I Equipment of OVERVOLTAGE CATEGORY I is equipment for connection to circuits in which measures are taken to limit the transient overvoltages to an appropriate low level Note Examples in...

Page 3: ...acing 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 Dio...

Page 4: ...6 Non Contact Voltage Detector 17 NCV LED indicator 18 Input shutter Display icons Description HOLD Data Hold APO Auto Power Off AUTO Autoranging P Peak Hold DC Direct Current AC Alternating Current MAX Max reading MIN Min reading Low battery ZERO DCA or CAP zero mV or V Milli volts or Volts Voltage Ω Ohms Resistance A Amperes Current F Farad Capacitance Hz Hertz Frequency Duty Ratio o F and o C F...

Page 5: ...couple temperature measurements 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 ...

Page 6: ...e offset value is now stored and removed from all measurements Frequency When ACV is selected the measured frequency can be viewed in the lower display 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 Slide the input shutter to the up position 2 Rotate the function switch to t...

Page 7: ... resistance measurements 2 Press the MODE button to select continuity 3 Touch the test probe tips across the circuit or component under test 4 If the resistance is 50Ω a tone will sound Diode Test 1 Connect as described for resistance measurements 2 Press the MODE button to select diode test 3 Touch the test probe tips to the diode or semiconductor junction under test Note the meter reading 4 Reve...

Page 8: ...Note The Zero feature removes stray test lead capacitance to improve the accuracy of low value capacitance measurements To perform a zero Press and hold the MODE ZERO button for two beeps The display will zero The offset value is now stored and is removed from all measurements Frequency and Duty Ratio Measurements 1 Slide the input shutter to the up position 2 Rotate the function switch to the Hz ...

Page 9: ...f the break Touch the red test probe tip to the positive side of the break 7 Turn circuit power on 8 Read the current value in the display Type K Temperature Measurements 1 Slide the input shutter to the down position 2 Rotate the function switch to the TYPE K temperature position 3 Press the MODE button to select F or C 4 Insert the Temperature Probe s into the T1 and or T2 type k sockets 5 Place...

Page 10: ...rectly view or direct the laser pointer at an eye Low power visible lasers do not normally present a hazard but may present some potential for hazard if viewed directly for extended periods of time IR Spot to Distance Diagram The 8 1 spot to distance ratio determines the size of the measured surface area with respect to the distance the meter is held away from the surface IR Measurement Notes 1 Th...

Page 11: ...ring 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...

Page 12: ... 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 contact 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...

Page 13: ...400 0 VAC 0 1V AC Voltage 50 60 Hz True RMS 600 VAC 1V 2 0 5 digits 400 00 mVDC 0 01mV 4 0000 VDC 0 0001V 40 000 VDC 0 001V 400 00 VDC 0 01V 0 1 2 digits DC Voltage 600 0 VDC 0 1V 1 0 2 digits 400 00Ω 0 01Ω 0 8 20 digits 4 0000kΩ 0 0001kΩ 40 000kΩ 0 001kΩ 400 00kΩ 0 01kΩ 4 0000MΩ 0 0001MΩ 0 8 4 digits Resistance 40 000MΩ 0 001MΩ 2 5 10 digits 400 00nF 0 01nF 5 0 40 digits 4000 0nF 0 1nF 3 0 10 dig...

Page 14: ...1 1 2 2 digits Duty Cycle Pulse width 100μs to 100ms Frequency 5Hz to 150kHz 58 to 4 F 50 to 19 C 13 F 7 C 4 to 31 F 20 to 1 C 1 0 2 F 1 C 32 F 0 C 2 F 1 C 33 to 211 F 1 to 100 C 1 0 2 F 1 C 212 to 718 F 101 to 399 C 1 5 3 F 2 C 719 to 1832 F 400 to 1000 C 0 1 1000 1 1000 2 5 7 F 4 C Temperature Type K Specification does not include probe accuracy 58 to 4 F 50 to 20 C 9 F 5 C 4 to 31 F 20 to 1 C 2...

Page 15: ...odels EX622 and EX623 IR distance ratio 8 1 models EX622 and EX623 Laser pointer Class 2 laser 1mW power Wavelength is 630 to 670nm Input Impedance 10MΩ VDC and VAC AC bandwidth 50 to 400Hz AAC and VAC AC response True rms AAC and VAC Crest Factor 3 0 in 40A and 400A ranges 1 4 in 1000A range 50 60Hz and 5 to 100 of range Operating Temperature 41 F to 104 F 5 C to 40 C Storage Temperature 4 F to 1...

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