Extech ex623 - Manuals - manualsarea.com

Page 2 - International Safety Symbols; WARNING

EX623-en-GB_v3.0 4/15 2 Introduction Congratulations on your purchase of this Extech EX623 True RMS Clamp Meter. This meter measures AC Current, DC Current, AC/DC Voltage, Resistance, Capacitance, Frequency, Diode Test, Duty Cycle and Continuity. Special features include Dual Input Thermocouple Temp...

Page 3 - Do not directly view or direct the laser pointer at an eye.

EX623-en-GB_v3.0 4/15 3 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 d...

Page 4 - Description; Meter Description

EX623-en-GB_v3.0 4/15 4 Description Meter Description 1. Current clamp 2. Clamp opening trigger 3. IR thermometer and Laser Button 4. HOLD/BACKLIGHT button 5. MODE / ZERO button 6. Backlit LCD Display 7. Type K input jacks 8. Multimeter input jacks 9. IR thermometer sensor and Laser pointer (rear) 1...

Page 5 - Operation; NOTES; Input Shutter; NOTE

EX623-en-GB_v3.0 4/15 5 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. Input Shutter The Input Shutter inhibits simultaneous connection to th...

Page 7 - Resistance Measurements; COM; Continuity Test; Diode Test; MODE

EX623-en-GB_v3.0 4/15 7 Resistance Measurements Note: Remove power from the device under test before making resistance measurements 1. Slide the input shutter to the up position. 2. Set the function switch to the  position. 3. Insert the black test lead banana plug into the negative COM jack. Inse...

Page 8 - Capacitance Measurements; Frequency and Duty Ratio Measurements

EX623-en-GB_v3.0 4/15 8 Capacitance Measurements WARNING: To avoid electric shock, discharge the capacitor before measuring. 1. Slide the input shutter to the up position. 2. Rotate the function switch to the  capacitance position. 3. Insert the black test lead banana plug into the negative COM jac...

Page 9 - A DC/AC Current Measurements; Type K Temperature Measurements; TYPE K

EX623-en-GB_v3.0 4/15 9  A DC/AC Current Measurements 1. Slide the input shutter to the up position. 2. Rotate the function switch to the  A position. 3. Press the MODE button to select AC or DC. 4. Insert the black test lead banana plug into the negative COM jack. Insert the red test lead banana ...

Page 10 - Non-Contact InfraRed Temperature Measurements; IR

EX623-en-GB_v3.0 4/15 10 Non-Contact InfraRed Temperature Measurements 1. Rotate the function switch to the IR position. 2. Press the MODE button to select °F or °C. 3. Aim the infrared sensor (rear of the meter) at the surface to be measured. 4. Press the IRT button to turn on the IR thermometer an...

Page 12 - Maintenance; Cleaning and Storage; Other Battery Safety Reminders; Fuse Replacement

EX623-en-GB_v3.0 4/15 12 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 ...

Page 13 - Specifications

EX623-en-GB_v3.0 4/15 13 Specifications Function Range Resolution Accuracy (% of reading + digits) AC Current 50/60 Hz True RMS 400.0 AAC 0.1A ±(1.5% + 5 digits) 40.00 AAC 0.01A DC Current 400.0 ADC 0.1A ±(1.5% + 5 digits) 40.00 ADC 0.01A AC/DC  A Current 400.00  A 0.01  A DC: ±(1.0% + 2 digits) ...

Page 14 - Duty Cycle

EX623-en-GB_v3.0 4/15 14 Function Range Resolution Accuracy (% of reading + digits) Frequency (test leads) 40.000Hz 0.001Hz ±(0.3% + 3 digits) 400.00Hz 0.01Hz ±(0.3% + 2 digits) 4000.0Hz 0.1Hz 40.000kHz 0.001kHz 400.00kHz 0.01kHz 4000.0kHz 0.1kHz 40.000MHz 0.001MHz 100.00MHz 0.01MHz Not specified Se...