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Related Manuals for Extech Instruments EX360
Summary of Contents for Extech Instruments EX360
- Page 1 USER MANUAL True RMS Digital Multimeters EX360 Series EX360 True RMS Digital Multimeter EX363 True RMS DMM with Temperature and µA AC/DC EX365 True RMS DMM with 10A AC/DC Current Additional User Manual Translations available at www.extech.com ...
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Page 2: Table Of Contents
Table of Contents 1. INTRODUCTION 3 2. SAFETY INFORMATION 4 3. DESCRIPTIONS 6 4. OPERATION 9 Powering the Meter Disable Auto Power OFF Display Backlight Smart Data Hold Test Lead Considerations Voltage Measurements Lo Z Voltage Measurements PEAK MAX‐MIN HOLD Mode (AC only) 10A AC/DC Current Measurements (EX365 only) µA AC/DC Current Measurements (EX363 only) Non‐Contact Voltage Detector Resistance Measurements Continuity Measurements Capacitance Measurements ... -
Page 3: Introduction
1. Introduction Thank you for selecting the Extech EX360 Series Meter. The EX360 Series are feature‐packed True RMS digital multimeters. In addition to standard DMM features, they offer a Low Impedance (Lo Z) mode, Smart Data Hold, Automatic AC/DC voltage Detect mode, Backlit LCD, and a Non‐Contact Voltage Detector that senses electrical sources safely. This device is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Please visit our website (www.extech.com) to check for the latest version of this User Guide, Product Updates, Product Registration, and Customer Support. Features 6000 count digital display and 60 segment analog bar graph display Large backlit LED display True RMS ACV measurements Lo Z mode (with Auto AC/DC Voltage detect) protects readings from ghost voltages Auto and Manual Range modes 0.5% DCV accuracy Smart Data Hold Peak Hold Relative mode Auto Power OFF (APO) with disable function Temperature measurements (Model EX363 only) with included temperature probe AC/DC µA function (Model EX363 only) 10A AC/DC current measurements with 11A/1000V high energy fuse (EX365 only) ... -
Page 4: Safety Information
2. Safety Information To ensure the safe operation and service of the meter, follow these instructions closely. Failure to observe warnings can result in severe injury. WARNINGS WARNINGS identify hazardous conditions and actions that could cause BODILY HARM or DEATH. When handling test leads or probes, keep hands and fingers behind the finger guards at all times. Remove test leads from the meter before opening the battery compartment or meter housing. Use the meter only as specified in this User Guide or accompanying Quick Start to avoid compromising the protections provided by the meter. Be sure to use the proper terminals, switch positions, and ranges when taking measurements. Verify the meter’s operation by measuring a known voltage. Have the meter serviced if the meter responds unusually or if there are questions regarding the meter’s functional integrity. Do not apply more than the rated voltage, as marked on the meter, between terminals or between any terminal and earth ground. Replace blown fuses with fuses of the same type and rating as specified in this User Guide. Use caution working with voltages above 30 VAC RMS, 42 VAC peak, or 60 VDC. These voltages pose a shock hazard. To avoid misleading readings that could lead to electric shock and injury, replace the batteries as soon as the low battery indicator is displayed. Disconnect power to the circuit under test and discharge all high‐voltage capacitors before testing resistance, continuity, diodes, or capacitance. Do not use the meter in the presence of explosive gas or vapor. To reduce risk of fire or electric shock, do not use the meter if it is wet and do not expose the meter to moisture. Individual protective equipment should be used if HAZARDOUS LIVE parts in the installation where measurements are to be carried out could be accessible. ... - Page 5 Safety Symbols that are typically marked on meters and instructions This symbol, adjacent to another symbol, indicates the user must refer to the manual or user guide for further information. Risk of electrical shock Fuse symbol Equipment protected by double or reinforced insulation Battery symbol Conforms to EU directives Do not discard this product in household trash. AC measurement DC measurement Earth ground Unsafe Voltage Alert When the meter detects a voltage equal to or greater than 30V or a voltage overload (OL) in V, mV, or Lo Z mode, the symbol is displayed. This system was designed to alert the user of a potentially hazardous voltage. PER IEC1010 OVERVOLTAGE INSTALLATION CATEGORY OVERVOLTAGE CATEGORY I Equipment of OVERVOLT AGE CATEGORY I is equipment for connection to circuits in which measures are taken to limit the transient over‐voltages to an appropriate low level. Note – Examples include protected electronic circuits. OVERVOLTAGE CATEGORY II Equipment of OVERVOLTAGE CATEGORY II is energy‐consuming equipment to be supplied from the fixed installation. Note – Examples include household, office, and laboratory appliances. OVERVOLTAGE CATEGORY III Equipment of OVERVOLTAGE CATEGORY III is equipment in fixed installations. Note – Examples include switches in the fixed installation and some equipment for industrial use with permanent connection to the fixed installation. OVERVOLTAGE CATEGORY IV ...
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Page 6: Descriptions
3. Descriptions Meter Description (EX365 pictured) Non‐Contact Voltage Detector and Continuity alert light LCD multi‐function display M (MODE) button (also F button on EX363) R RANGE and Lo/Hi button Rotary function select switch Positive input terminal (10A Current) for EX365 only Common (‐) input terminal Positive input terminal: Voltage, Resistance, Capacitance, Temperature (EX363), and µA (EX363) LCD Backlight button H Data Hold button PEAK MAX‐MIN / REL (RELATIVE) button Battery compartment on back of meter Fig 3‐1 METER DESCRIPTION EX36x‐en‐GB_V1.6 1/17 ... - Page 7 Display Icon Descriptions Auto Volts: Automatic AC/DC voltage detect (for Lo Z mode only) Auto: Automatic range mode HOLD: Display hold Lo Z: Low Impedance mode : Relative mode and AC: Alternating Current Measurements and DC: Direct Current Measurements : Main display digits : Bar graph A: Amperes (Current) V: Volts (Voltage) F: Temperature units F: Farads (Capacitance measurement units) Hz: Hertz (Frequency measurements unit) Ω (Ohms): Resistance measurement unit :Battery status icon ‐ Minus (negative) sign ...
- Page 8 Push‐Button Descriptions Press the M (MODE) button to perform the following. The F function is only available on the EX363 model: Switch Position MODE (M) Button Function V Hz A Hz (EX365) Ω Ω ...
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Page 9: Operation
4. Operation CAUTION: Read and understand all of the Safety statements listed in the safety section of this manual prior to use. Powering the Meter Turn the rotary function switch to any position to power the meter. Check the batteries if the unit fails to power ON. Refer to the Maintenance section for battery and fuse replacements. Turn the function switch to the OFF position to power OFF the meter. The meter has an Auto Power OFF feature (APO) where the meter switches OFF after 20 minutes of inactivity. When APO is enabled, the APO icon will show on the display when the meter is powered ON. To disable APO, refer to the next section. Note: The meter displays the battery capacity when powering up. The display will either show the word FULL (battery fully charged) or a percentage representing remaining battery power. The international segmented battery strength symbol is also shown on the display at all times when the meter is ON and when there is sufficient battery power to power the meter. Disable Auto Power OFF The meter will auto power OFF after 20 minutes of inactivity. To defeat this feature, follow the steps below. With the meter OFF, press and hold the M (MODE) button and, while continuing to hold, turn the rotary function switch to any position to power ON the meter. The display will show AOFF. Release the button. APO will now be disabled until the next cycle of power. Display Backlight With the meter powered ON, press the backlight button to switch the backlight ON or OFF. Note that excessive use of the backlight will shorten the battery life. Smart Data Hold To freeze the LCD meter reading, press the H (HOLD) button. While data hold is active, the HOLD display icon appears on the LCD. Press the H button to return to normal operation. The HOLD icon will switch OFF. The meter’s beeper will sound and the LCD will flash if the detected signal is 50 counts greater than the held reading. Test Lead Considerations Test lead probe covers can be removed for CAT II 1000V installations. Use the test lead probe covers for CAT III 1000V or CAT IV 600V installations. Do not measure voltages > 1000V AC or DC. Remove the storage caps from the meter end of test leads before connecting leads to the meter. EX36x‐en‐GB_V1.6 1/17 ... -
Page 10: Voltage Measurements
Voltage Measurements WARNING: Remove the test lead probe covers for CAT II 1000V installations. Use the test lead probe covers for CAT III 1000V or CAT IV 600V installations. Do not measure voltages greater than 1000V. CAUTION: When connecting the test leads to the circuit or device under test, connect the black lead before the red; when removing the test leads, remove the red before the black lead. AC Voltage Measurements 1. Insert the black test lead banana plug into the negative (COM) jack and the red test lead banana plug into the positive (V/Ω) jack. 2. Turn the function switch to the position. 3. The meter defaults to the Auto Range mode (Auto displayed on LCD). Press the R button to access the manual range mode. Press and hold the R button to return to the Auto Range mode (Auto will be displayed). 4. Read the Warning and Caution statements above to determine whether or not to use the test lead probe covers. 5. Touch the test probe tips to the circuit under test. 6. Read the digital value and the bar graph representation of the measurement in the display. The display will also indicate the proper decimal point and measurement type/units symbols. 7. Note the voltage alert symbol when voltage is present. 8. Use the M button to view the frequency (Hz) of the measured voltage. Fig 4‐1 AC VOLTAGE MEASUREMENTS EX36x‐en‐GB_V1.6 1/17 ... - Page 11 DC Voltage Measurements Insert the black test lead banana plug into the negative (COM) jack and the red test lead banana plug into the positive (V/Ω) jack. Move the Function Switch to the or position. Read the Warning and Caution statements at the beginning of this section to determine whether or not to use the test lead probe covers. Touch the test probe tips to the circuit under test. Be sure to observe the correct polarity (red lead to positive, black lead to negative). The meter defaults to the Auto Range mode (Auto displayed on LCD). Press the R button to access the manual range mode. Press and hold the R button to return to the Auto Range mode. Read the digital value and the bar graph representation of the measurement in the display. The display will also indicate the proper decimal point and measurement type/units symbols. If the polarity is reversed, the display will show (‐) minus before the value. Note the voltage alert symbol when voltage is present. The meter is capable of detecting DC voltages to 1000V. Fig 4‐2 DC VOLTAGE MEASUREMENTS EX36x‐en‐GB_V1.6 1/17 ...
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Page 12: Lo Z Voltage Measurements
Lo Z Voltage Measurements When the function switch is turned to the Lo Z position, the meter incorporates an automatic voltage detection circuit to automatically determine voltage AC or DC and a low Z (impedance) circuit* that eliminates ghost voltage complications. Refer to the Voltage Measurements section earlier in this guide for Safety information and connection diagrams. *The Lo Z impedance is approx. 3kΩ increasing to over 100kΩ when measuring 1000V. Insert the black test lead banana plug into the negative (COM) jack and the red test lead banana plug into the positive (V/Ω) jack. Move the Function Switch to the Lo Z position. Touch the test probe tips to the circuit under test. Be sure to observe the correct polarity (red lead to positive, black lead to negative). The meter defaults to the Auto Range mode (Auto displayed on LCD). Manual range cannot be used in this mode. Read the digital value and the bar graph representation of the measurement in the display. The display will also indicate the proper decimal point and measurement type/units symbols. If the polarity is reversed, the display will show (‐) minus before the value. The meter is capable of detecting AC/DC voltages to 1000V. Note the voltage alert symbol when voltage is present. PEAK MAX‐MIN HOLD Mode (AC only) In the PEAK HOLD mode the meter records MAX and MIN measurement values. When the measurement exceeds a recorded MAX or MIN value, the meter replaces the existing value with the newer value. 1. Press and hold the PEAK button for at least two seconds. PEAK MAX MIN will be displayed and the meter will begin recording MAX and MIN values. 2. A short press of the PEAK button will show the MAX recorded reading. 3. Another short press of the PEAK button will show the MIN recorded reading. 4. Press the PEAK button again to view real time readings while MAX MIN recording continues in the background. 5. To pause MAX MIN recording, press the H button. The display will freeze and the HOLD icon will appear. Press H again to return to real time readings (with MAX MIN recording ... -
Page 13: A Ac/Dc Current Measurements (Ex365 Only)
10A AC/DC Current Measurements (EX365 only) WARNING: Do not handle the test leads above the finger/hand guard barrier. CAUTION: Observe CAT III 1000V CAT IV 600V with respect to Earth Ground. Insert the black test lead into the COM terminal and the red test lead into the A terminal. Turn the meter’s function switch to the or position. The A symbol will appear on the display indicating Amperes (Amps). The meter defaults to the Auto Range mode. When in Auto mode, the display shows the Auto icon in the upper left corner. Use the R button to manually range the meter. Press and hold the R button to return to the Auto Range mode. The meter display will show AC or DC depending on the function switch position. Current measurements must be taken in series with the circuit under test. See accompanying diagram. Touch the black test lead to the negative side of the circuit and the red test lead to the positive side of the circuit. Read the current measurement in the display represented by numerical digits and bar graph. The display will indicate the proper decimal point and value. In DC, If the polarity is reversed, the display will show (‐) minus before the value. Use the M button to view the frequency (Hz) of the measured current. Fig 4‐3 AC/DC 10A CURRENT MEASUREMENTS EX36x‐en‐GB_V1.6 1/17 ... -
Page 14: Μa Ac/Dc Current Measurements (Ex363 Only)
µA AC/DC Current Measurements (EX363 only) WARNING: Do not handle the test leads above the finger/hand guard barrier. CAUTION: Observe CAT III 1000V and CAT IV 600V with respect to Earth Ground. Insert the black test lead into the COM terminal and the red test lead into the µA terminal. Turn the meter’s function switch to the µA position. The µA units symbol will appear on the display indicating that micro‐amperes are being measured. The meter defaults to the Manual Range mode. Auto range cannot be used in this mode. The meter display will show AC or DC depending on the function switch position. Current measurements must be taken in series with the circuit under test. See accompanying diagram. Touch the black test lead to the negative side of the circuit and the red test lead to the positive side of the circuit. Read the current measurement in the display represented by the numerical digits and the bar graph. The display will indicate the proper decimal point and value. In DC, If the polarity is reversed, the display will show (‐) minus before the value. Fig 4‐4 µA AC/DC CURRENT MEASUREMENTS EX36x‐en‐GB_V1.6 1/17 ... -
Page 15: Non-Contact Voltage Detector
Non‐Contact Voltage Detector WARNING: It is possible for voltage to be present in a circuit even if the meter does not beep or light the NCV LED lamp at the top of the meter. Always verify meter operation on a known live AC current circuit and verify that the batteries are fresh before use. The audible beeper sounds and the LED lamp at the top of the meter lights when the meter senses an electrical voltage field. If the meter does not emit a tone or light the LED in this mode, there is still the possibility that voltage is present. Please use caution. Turn the function switch to the NCV position to access the Non‐Contact Voltage Detect mode. Use ... -
Page 16: Resistance Measurements
Resistance Measurements Cautions: Switch OFF power to the device under test before measuring. Do not test on circuits or devices where 60VDC or 30VAC is present. Insert the black test lead banana plug into the negative (COM) jack. Insert the red test lead banana plug into the positive (V/Ω) jack. Turn the Function Switch to the Ω position. Use the M button to select the Ω icon on the display indicating resistance only (without the audible continuity icon showing). Touch the test probe tips across the circuit or part under test. It is best to disconnect one side of the part under test so the rest of the circuit will not interfere with the resistance reading. Read the resistance value in the display. The display will indicate the proper decimal point and value. If the reading is out of range, the OL display icon will appear. Fig 4‐6 RESISTANCE/CONTINUITY MEASUREMENTS Continuity Measurements Insert the black test lead into the negative COM terminal and the red test lead into the positive terminal. Set the function switch to the position. Use the M button to select the Continuity mode. Look for the Continuity icon on the display. Touch the test probe tips across the wire or circuit under test. If the resistance is < 20 Ω, the beeper will sound and the LED lamp at the top of the meter will flash. The beeper and LED lamp will switch off if the measured signal rises above approximately 200 Ω. For an open circuit condition the meter will display . EX36x‐en‐GB_V1.6 1/17 ... -
Page 17: Capacitance Measurements
Capacitance Measurements WARNING: To avoid electric shock, remove power to the circuit under test and discharge the capacitor under test before measuring. Do not test on circuits or devices where 60VDC or 30VAC is present. Set the function switch to the capacitance position. Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive jack. Press the M button to select the unit of measure symbol F. Touch the test probe tips across the part under test. Use the Relative mode to compare measurements to a saved, known capacitance value. See next section for Relative mode instructions. Read the capacitance value in the display. The display will indicate the proper decimal point and value. Note: For large values of capacitance several seconds may be required before the reading stabilizes. Fig 4‐7 CAPACITANCE MEASUREMENTS Relative Mode In Relative mode a reference reading can be stored with which to compare subsequent readings. Press the button to store the displayed reading in memory, this becomes the reference. The symbol will be displayed when the Relative mode is active. Subsequent readings will now be compared to the stored reference (Displayed Reading = Measurement minus Reference). Press the button again to exit the Relative mode; the Relative symbol will switch off. EX36x‐en‐GB_V1.6 1/17 ... -
Page 18: Diode Test
Diode Test Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive jack. Turn the function switch to position. Use the M button to select the diode function if necessary (the diode and voltage symbols will appear on the LCD when in Diode test mode). Touch the test probe tips to the diode or semiconductor junction under test. Note the meter reading. Reverse the test lead polarity by reversing the red and black leads. Note this reading. The diode or junction can be evaluated as follows: If one reading displays a value (typically 0.400V to 0.900V) and reverse reading displays OL, the diode is good. If both readings display OL the device is open. If both readings are very small or ‘0’, the device is shorted. Fig 4‐8 DIODE TESTING EX36x‐en‐GB_V1.6 1/17 ... -
Page 19: Temperature Measurements (Ex363 Only)
Temperature Measurements (EX363 only) Insert the supplied temperature probed into the COM and positive terminals observing correct polarity. Turn the function switch to the temperature position. Use the F button to select the desired unit of measure. Touch the temperature probe tip to the device under test or leave the temperature probe in the open air to measure ambient temperature. Read the temperature measurement on the LCD. To set the currently selected unit of measure as default, press and hold the backlight button while turning the meter ON. TEMP Fig 4‐9 TEMPERATURE MEASUREMENTS EX36x‐en‐GB_V1.6 1/17 ... -
Page 20: Maintenance
5. Maintenance WARNING: To avoid electrical shock, remove the test leads, disconnect the meter from any circuit and turn OFF the meter before opening the case. Do not operate with an open case. Battery Replacement Remove the test leads from the meter. Remove the meter’s protective cover. Remove the two Phillips head screws that secure the battery compartment at the back of the meter. Open the battery compartment and replace the 9V battery observing correct polarity. Re‐assemble the meter before use Safety: Please dispose of batteries responsibly; never dispose of batteries in a fire, batteries may explode or leak. If the meter is not to be used for 60 days or more, remove the battery and store separately. Fig 5‐1 BATTERY REPLACEMENT Never dispose of used batteries or rechargeable batteries in household waste. As consumers, users are legally required to take used batteries to appropriate collection sites, the retail store where the batteries were purchased, or wherever batteries are sold. Disposal: Do not dispose of this instrument in household waste. The user is obligated to take end‐of‐ life devices to a designated collection point for the disposal of electrical and electronic equipment. EX36x‐en‐GB_V1.6 1/17 ... - Page 21 Fuse Replacement WARNING: To avoid electrical shock, remove the test leads, disconnect the meter from any circuit and turn OFF the meter before opening the case. Do not operate with an open case. Follow the steps in the accompanying 11A/1000V (10x38mm) fuse replacement diagram. Remove the test leads from the meter. Remove the meter’s protective cover. Remove the four (4) screws that secure the meter housing. Replace the fuse with one of the same type and rating. Reassemble the meter before use. Fig 5‐2 FUSE REPLACEMENT Cleaning and Storage Periodically wipe the case with a damp cloth and mild detergent; do not use abrasives or solvents. LCD Diagnostic Test Press and hold the H button while turning the meter ON to view all LCD icons and symbols. Turn the meter OFF to end this diagnostic test. If there is reason to suspect that a display icon is not functioning, this is a handy verification. If the display is responding unusually, or if an icon is malfunctioning, please return the meter for service. EX36x‐en‐GB_V1.6 1/17 ...
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Page 22: Specifications
6. Specifications ELECTRICAL SPECIFICATIONS Accuracy is given as ± (% of reading + least significant digit) at 23 C ±5 C with relative humidity lower than 80%. Accuracy is specified for a period of one year after calibration. 1. Temperature Coefficient is 0.1 x specified accuracy / C, < 18 C (64.5 F), > 28 C (82.4 F) 2. AC Functionality: ACV and ACA specifications are AC coupled, True RMS; the accuracy for square waveforms is unspecified. For non‐sinusoidal waveforms, additional accuracy Crest Factor (C.F.) considerations exist as detailed below: Add 3.0% for C.F. 1.0~2.0; Add 5.0% for C.F. 2.0~2.5; Add 7.0% for C.F. 2.5~3.0 Function Range Resolution Accuracy (of reading) ‘OL’ Reading mV DC 600.0mV 0.1mV ± (0.5% + 5 digits) 660.0mV Input Impedance: 10M; Overload Protection: AC/DC 1000V 6.000V 0.001V 6.600V ... - Page 23 Function Range Resolution Accuracy (of reading) ‘OL’ Reading µA AC (EX363 only) 600.0 µA 0.1uA ± (1.5% + 3 digits) 660.0µA LCD Displays ‘0’ counts when the reading < 10 counts Input Impedance: 3kΩ approx. Frequency Response: 45~500Hz (sine wave) Over load protection: 1000V AC/DC 6.000 A 0.001 6.600A AC Current (EX365) ± (1.5% + 3 digits) 10.00 A 0.01 20.00A In 6A Range, the LCD displays 0 counts when the reading < 20 counts. In10A Range, the LCD displays 0 counts when the reading < 10 counts. Maximum measurement time: >5A for max. 3 minutes with at least 20 minutes rest time. >10A for max. 30 seconds with at least 10 minutes rest time. Frequency Response : 45 ~ 500Hz (Sine Wave) Overload Protection : AC/DC 11A 6.000 A 0.001 6.600A DC Current (EX365) ± (1.0% + 3 digits) 10.00 A 0.01 20.00A Maximum measurement time : >5A for max. 3 minutes with at least 20 minutes rest time. >10A for max. 30 seconds with at least 10 minutes rest time. ...
- Page 24 Function Range Resolution Accuracy (of reading) ‘OL’ Reading 100.00 Hz 0.01 Hz 100.00 Hz 1000.0 Hz 0.1 Hz 1000.0 Hz Frequency ± (0.1% + 2 digits) 10.000 kHz 0.001kHz 10.000 kHz 100.00 kHz 0.01kHz 100.00 kHz Minimum Sensitivity: > 5V (for ACV 1Hz ~ 10kHz) > 20.0V (for ACV 10kHz ~ 50kHz) unspecified (for ACV 50kHz ~ 100kHz) >0.6A (for ACA) Minimum Frequency: 1Hz Overload Protection: AC/DC 1000V or 11A ‐40.0~400.0 C ± (1.0% + 20 digits)* 440.0 C ‐40.0~752.0 F ± (1.0% + 36 digits)* 824.0 F *Does not include accuracy of the temperature probe. Accuracy specifications Temp. (EX363) assume surrounding temperature stable to ±1 C. For ambient temperature ...
- Page 25 GENERAL SPECIFICATIONS Display 6000‐count Multi‐Function LCD Over‐range indication “OL” or “‐OL” is displayed Conversion rate 3 updates per second Maximum Voltage 1000VAC RMS or 1000V DC maximum applied to any terminal Polarity indication Automatic: positive implied, negative indicated (‐) Low battery indication is displayed. Meter also displays available battery power at startup Auto Power OFF After 20 minutes (can be disabled by holding the M (MODE) button while turning the meter ON) Operating Temperature and Humidity ‐10~10C (14~50F) 10~30C (50~86F); 80%RH maximum 30~40C (86~104F); 75%RH maximum 40~50C (104~122F); 45%RH maximum Storage Temperature and Humidity ‐20~60C (‐4~140F); 80%RH maximum (with battery removed) Operating Altitude 2000m (6562’) Battery power 9V battery (battery life 200 hours typical with alkaline battery types) Fuse protection 11A/1000V (10x38mm) AC/DC high energy (IR 20kA) DMM‐B‐11A (EX365 only) Weight 250g (8.8 oz.)Including battery Dimensions (W x H x D) 74 x 156 x 44mm (2.9 x 6.1 x 1.7”) ...