USER GUIDE Extech EX850 True RMS 1000 Amp Clamp Meter BluetoothTM and AndroidTM ready Patented
EXTECH INSTRUMENTS Introduction Congratulations on your purchase of the Extech EX850 CAT IV True RMS 1000A Clamp Meter. This meter includes a BluetoothTM module and is AndroidTM ready. The EX850 measurement functions include AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency, Duty Cycle, Diode Test, Continuity, Type k thermocouple thermometer plus Non‐Contact IR Temperature. Proper use and care of this meter will provide many years of reliable service. Visit www.extech.
EXTECH INSTRUMENTS CAUTIONS Improper use of this meter can cause damage, shock, injury or death. Read and understand this user manual before operating the meter. Always remove the test leads before replacing 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.
EXTECH INSTRUMENTS Description Meter Description 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14.
EXTECH INSTRUMENTS 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 Current Measurements 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 the jaw. Fully enclose only one conductor.
EXTECH INSTRUMENTS 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.
EXTECH INSTRUMENTS Type K Temperature Measurements 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.
EXTECH INSTRUMENTS Non‐Contact InfraRed Temperature Measurements 1. 2. 3. 4. 5. Set the function switch to the IR Temp position. Aim the infrared sensor (rear of the meter) at the surface to be measured. 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. The area of the surface to be measured must be larger than the spot size as determined by the distance to spot size specification. Read the temperature in the display.
EXTECH INSTRUMENTS 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 3. Allow time for the display to stabilize.
EXTECH INSTRUMENTS Automatic Power OFF In order to conserve battery life, the meter will automatically turn off after approximately 10 minutes. To turn the meter on again, turn the function switch to the OFF position and then to the desired function position. BluetoothTM Communication The meter includes a Bluetooth module. Enable the EX850 Bluetooth by pressing and holding the side Bluetooth SEND/Backlight button for two seconds. On the second beep the Bluetooth icon will appear in the display.
EXTECH INSTRUMENTS FCC COMPLIANCE FCC ID: IWK‐EX850 This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference. 2. This device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
EXTECH INSTRUMENTS INDUSTRY CANADA (IC) COMPLIANCE IC ID: 1590A‐EX850 This device complies with Industry Canada license‐exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. CAUTION: IC Radiation Exposure Statement 1.
EXTECH INSTRUMENTS Specifications Function Range & Resolution AC Current 50/60 Hz 400.0 AAC ± (2.5% + 8d) 1000 AAC ± (2.8% + 5d) 400.0 ADC ± (2.5% + 5d) 1000 ADC ± (2.8% + 5d) 400.0 mVAC ± (1.0% + 10d) DC Current AC Voltage 4.000 VAC 50/60Hz 40.00 VAC Accuracy (% of reading + digits) ± (1.5% + 5d) 400.0 VAC 1000 VAC ± (2.0% + 5d) 400.0 mVDC ± (0.8% + 2d) 4.000 VDC DC Voltage 40.00 VDC ± (1.5% + 2d) 400.0 VDC 1000 VDC ± (2.0% + 2d) 400.0Ω ± (1.0% + 4d) 4.
EXTECH INSTRUMENTS Function Range and Resolution Temperature (type‐K) Temp (IR) Clamp jaw opening Display Continuity check Diode test Low Battery indication Over‐range indication Measurement rate Bluetooth range PEAK Thermocouple sensor IR Spectral response IR Emissivity IR distance ratio Input Impedance AC bandwidth AC response Crest Factor Operating Temperature Storage Temperature Operating Humidity Storage Humidity Operating Altitude Battery Auto power OFF Dimensions & Weight Safety Patent notice Ac
EXTECH INSTRUMENTS Warranty FLIR Systems, Inc. warrants this Extech Instruments brand device 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 for authorization. Visit the website www.extech.com for contact information.
EXTECH INSTRUMENTS Garantie FLIR Systems, Inc. garantit que cet appareil Extech Instruments est exempt de défauts matériaux et de fabrication pendant un an à partir de la date d’envoi (une garantie limitée de six mois s’applique aux capteurs et aux câbles). Si le renvoi de l’appareil pour réparation devient nécessaire durant ou après la période de garantie, contactez le service client pour autorisation. Pour obtenir les coordonnées, visitez le site Web suivant : www.extech.com.
EXTECH INSTRUMENTS Garantía FLIR Systems, Inc., garantiza este dispositivo marca Extech Instruments para estar libre de defectos en partes o mano de obra durante un año a partir de la fecha de embarque (se aplica una garantía limitada de seis meses para cables y sensores). Si fuera necesario regresar el instrumento para servicio durante o después del periodo de garantía, llame al Departamento de Servicio a Clientes para obtener autorización. Visite www.extech.com para Información de contacto.
