User's Guide Extech 800 Series 1000 Amp Clamp Meters with IR Thermometer EX810 AC Clamp meter EX820 True RMS AC Clamp meter EX830 AC/DC True RMS Clamp meter Patented
Introduction Congratulations on your purchase of the EX800 Series Clamp device.
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 Double insulation 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.
Description Meter Description (EX830 pictured) 1. Current clamp 2. Clamp opening trigger 3. Data Hold Button 4. Mode 5. Peak 6. Range 7. DCA Zero (EX830 only) 8. MIN/MAX 9. Backlit LCD Display 10. Test lead input jacks 11. IR thermometer and laser pointer (rear) 12. Backlight Button 13. Laser pointer button 14.
Specifications Function Range & Resolution Accuracy (% of reading + digits) EX820 EX810 EX830 AC Current 400.0 AAC ± (2.8% + 8d) ± (2.5% + 8d) ± (2.5% + 8d) 50/60 Hz True RMS on EX820 & EX830 1000 AAC ± (3.0% + 8d) ± (2.8% + 5d) ± (2.8% + 5d) DC Current 400.0 ADC ----- ----- ± (2.5% + 5d) EX830 only 1000 ADC ----- ----- ± (2.8% + 5d) ± (1.5% + 10d) ± (1.0% + 10d) ± (1.0% + 10d) ± (1.8% + 8d) ± (1.5% + 5d) ± (1.5% + 5d) 600 VAC ± (2.5% + 8d) ± (2.0% + 5d) ± (2.0% + 5d) 400.
Function Range and Resolution Temperature (type-K) Temp (IR) EX810 EX820 o NA ± (3%rdg + 9 F) EX830 -20 to 760 C o NA -58 to -4°F o ± (3%rdg + 9 F) ± (3%rdg + 5 C) o ± (3%rdg + 5 C) ± 9 °F ± 9 °F ± 9 °F -4 to 518°F ±2.0% reading or ± 4°F whichever is > ±2.0% reading or ± 4°F whichever is > ±2.0% reading or ± 4°F whichever is > -50 to -20°C ±5°C ±5°C ±5°C -20 to 270°C ±2.0% reading or ±2°C whichever is > ±2.0% reading or ±2°C whichever is > ±2.
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. AC/DC Current Measurements (DC Current on Model EX830 only) WARNING: Ensure that the test leads are disconnected from the meter before making current clamp measurements. 1. Set the Function switch to the AAC or ADC range 2. Press the trigger to open jaw. Fully enclose only one conductor.
Resistance Measurements Note: Remove power before making resistance measurements 1. Insert the black test lead into the negative COM terminal and the red test lead into the Ω positive terminal. 2. Set the function switch to the Ω position. 3. Touch the test probe tips across the circuit or component under test. 4. Read the resistance on the LCD display. Capacitance Measurements WARNING: To avoid electric shock, discharge the capacitor under test before measuring.
Type K Temperature Measurements (Models EX820 and EX830 only) 1. Set the function switch to the K Temp position. 2. Insert the Temperature Probe into the negative COM and the positive TEMP jacks, observing polarity. 3. Touch the Temperature Probe tip to the device under test. Continue to touch the part under test with the probe until the reading stabilizes. 4. Read the temperature on the display. The digital reading will indicate the proper decimal point and value.
Non-Contact InfraRed Temperature Measurements 1. Set the function switch to the IR Temp position. 2. Aim the infrared sensor (rear of the meter) at the surface to be measured. 3. Press the button in the center of the rotary function switch to turn on the laser pointer and identify the surface spot to be measured. 4. The area of the surface to be measured must be larger than the spot size as determined by the distance to spot size specification. 5. Read the temperature in the display.
Data Hold To freeze the LCD reading, press the HOLD button. While data hold is active, the HOLD icon appears on the LCD. Press the HOLD button again to return to normal operation. Peak Hold The Peak Hold function captures the peak AC or DC voltage or current. The meter can capture negative or positive peaks as fast as 1 millisecond in duration. 1. Turn the function switch to the A or V position. 2. Use the MODE button to select AC or DC (ADC EX830 only). 3. Allow time for the display to stabilize. 4.
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.
Warranty EXTECH INSTRUMENTS CORPORATION 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 contact information.
