User`s Guide LCD Multifunction Voltage Tester Model VT30
Contents
1. per EN61243 3 and IEC61243 3 to Category IV 600V and Category III 1000V Pollution Degree 2 CE IP64 240 x 78 x 40mm 9 4 x 3 x 1 6 260G 9 202 Copyright 2006 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form 7 VT30 EU EN V3 1 7 092. User s Guide EXT INSTRUMENTS A FLIR COMPANY LCD Multifunction Voltage Tester Model VT30 Introduction Congratulations on your purchase of the Extech VT30 Multifunction Voltage Tester The VT30 measures AC voltage to 480V and DC Voltage to 690V with LCD readout stepped voltage bargraph indicator and LEDs for positive and negative polarity Additional features include audible continuity beeper low impedance test for eliminating phantom voltages and a built in flashlight to illuminate test connections during measurements This meter is shipped fully tested and with proper use will provide years of reliable service Safety International Safety Symbols This symbol adjacent to another symbol or terminal indicates the user must refer to the manual for further information A This symbol adjacent to a terminal indicates that under normal use hazardous voltages may be present ol Double insulation Safety Precautions 1 Ia N NoD Improper use of this meter can cause damage shock injury or death Read and understand this manual before use Ensure that any covers or battery doors are properly closed and secured before use Inspect the condition of the test leads and the meter itself for any damage before use Do not exceed the rated input limits Use great care when taking measurements greater than 25VAC rms or 35VDC These voltages are
3. considered a shock hazard Discharge capacitors and remove power from the DUT before Continuity tests Remove the batteries from the meter if the meter is to be stored for long periods Voltage measurement results on electrical outlets can be misleading because of the difficulty in making a proper connection to the electrical contacts Safety Instructions 1 This meter has been designed for safe use but must be operated with caution The rules listed below must be carefully followed for safe operation NEVER apply voltage to the meter that exceeds the specified maximum Input Protection Limits Function Maximum Input VAC VDC Continuity 480VAC 690VDC Low Impedance 3s lt 400V AC 690V DC USE EXTREME CAUTION when working with high voltages ALWAYS discharge filter capacitors in power supplies and disconnect the power when making continuity tests ALWAYS disconnect the test leads before opening the cover to replace the battery NEVER operate the meter unless the battery cover is in place and fastened securely 2 VT30 EU EN V3 1 7 09 Description 1 OO NEO Or ae ON hl Oo Test Probe L1 Test Probe L2 Flashlight LCD display LED AC voltage indicator between 100 to 480V LED low impedance test LED continuity Low impedance test button L2 Flashlight button Battery cover Low impedance test button L1 VT30 EU EN V3 1 7 09 Op
4. e will be displayed on the LCD Note The maximum duty cycle in this mode is 5 seconds for voltages up to 250V and 3 seconds for voltages up to 690V Allow 10 minutes between each reading Note Measuring from hot to ground may trip any GFCI equipped circuits 4 VT30 EU EN V3 1 7 09 3 Phase Rotation The 3 phase rotation function indicates whether the 3 phase AC lines or mains are live and also identifies the phase orientation of the three wires before attaching them to a motor or other equipment The phase sequence will determine the direction Clockwise or Counter clockwise a motor will rotate when connected To determine clockwise rotation P1 P2 P3 1 Touch probe L1 to any one of the three AC mains Label this phase P1 2 Touch probe L2 to the other two phases One phase will indicate L and one will indicate R 3 Label the phase that indicates R as P2 4 Touch probe L1 to phase P2 and touch probe L2 to the remaining unlabeled AC main wire The R icon will illuminate Label this phase P3 5 The clockwise sequence P1 P2 P3 also known as 1 2 3 or R S T has been identified 6 To determine a counterclockwise rotation exchange the L and R in the procedure P1 P2 P3 L1 Continuity Test The tester can measure resistance and alert the user if the resistance value is less than 200kQ 1 Before taking a continuity test make sure that power to the device or circuit under test is off a
5. eration uN Always test the meter on a known live circuit before taking measurements Voltage Measurement 1 Note The voltage tester will turn on automatically when voltages higher than 4 5V AC DC are detected 2 Touch the positive L2 and negative L1 test leads to the device or circuit under test 3 Ifthe voltage is higher than 4 5V AC DC the LCD will light and display the reading The stepped voltage bargraph scale in the display will also indicate the reading 4 For AC voltages the LED will light and the AC icon will appear in the display For DC voltages the DC icon will be displayed If the DC voltage is negative a minus sign will be displayed before the digital readout Single Lead AC Voltage Detection To check for the presence of voltage between 100V and 480V using only the positive test lead L2 touch the lead to the device or circuit under test If voltage is present the LED will light Note In this mode the actual voltage is not displayed only the presence of voltage is detected Low Impedance Voltage Measurement Due to the lowered internal impedance capacitive voltage is suppressed so that the reading shows the actual voltage applied This can be used to quickly identify phantom voltages 1 Hold the two test tips on the measuring points to be tested 2 Press the two low impedance test buttons simultaneously 3 The Low Impedance LED will light and the applied voltag
6. nd that all capacitors are discharged 2 Touch the test tips to the device under test 3 Ifthe resistance is less than 200kQ the tester will sound an audible alert the LCD will display 000 and the continuity LED will light Flashlight Press and hold the button to turn the flashlight on Release the button to turn the flashlight off After the button is released the light will turn off after 12 seconds approx 5 VT30 EU EN V3 1 7 09 Maintenance Battery replacement 1 The BAT icon will appear in the lower right of the display when the battery voltage becomes low Replace the batteries when this appears Disconnect the meter from any test device or circuit before opening the tester Loosen the recessed Phillips head screw at the bottom of the tester Do not remove the screw Hold the meter and pull the lower portion of the meter off until the batteries are exposed Replace the two AAA batteries observing polarity and dispose of the old batteries properly Slide the meter back together and replace the screw You as the end user are legally bound Battery ordinance to return all used batteries and accumulators disposal in the household garbage is prohibited You can hand over your used batteries accumulators at collection points in your community or wherever batteries accumulators are sold Disposal Follow the valid legal stipulations in respect of the disposal of the de
7. vice at the end of its lifecycle Cleaning and Storage Before cleaning the tester ensure that the test leads are not connected to any circuit or device Wipe the meter only with a damp cloth as needed Do not apply abrasives solvents or other cleaners to the surface of the meter Store with the battery removed and avoid extreme temperature and humidity VT30 EU EN V3 1 7 09 Specifications LCD display Resolution AC Voltage range ACV frequency range DC Voltage range Accuracy Range selection Max measuring current Response time Input Impedance Continuity test Overvoltage protection Low impedance test LCD enable input voltage Operation time Power supply Battery life Operating Temperature Storage Temperature Operating Humidity Safety Approvals Dimensions Weight 1999 counts 3 1 2 digits with bargraph and backlight 1 Volt 0 to 480V 50 60Hz 0 to 690V ACV 1 5 rdg 5d DCV 1 0 rdg 3d Automatic lt 1 0mA 400VAC lt 1 5mA 690VDC Updates 2 3 times sec 1MQ approx Range 0 to 200kQ guaranteed on lt 50kQ lt 5pA test current 480VAC 690VDC 12 250VAC DC impedance lt 6kQ gt 4 5V AC DC 5s lt 250V AC DC 2 x AAA 1 5V alkaline batteries Approx 8 hours continuous use typical 10 to 55 C 14 to 131 F 30 to 60 C 22 to 140 F 10 to 85 RH non condensing This meter is intended for origin of installation use and protected against the users by double insulation
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