Extech Instruments MS420 User Manual
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Extech Instruments MS420 User Manual

Extech Instruments MS420 User Manual

Digital 20mhz oscilloscope
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USER MANUAL
Digital 20MHz Oscilloscope
Model MS420 - 20MHz
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Summary of Contents for Extech Instruments MS420

  • Page 1 USER MANUAL Digital 20MHz Oscilloscope Model MS420 - 20MHz...
  • Page 2 Congratulations on your purchase of the Extech Digital Oscilloscope. This manual is divided into two sections: Section One for the Oscilloscope functions and Section Two for the Multimeter functions. This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. MS420-en-US_V6.0 2/23...

  • Page 3: Table Of Contents

    Setting the Trigger System ········································································ 33 Triggering Control ···················································································· 33 Edge Triggering ······················································································ 34 Video Triggering ······················································································ 35 Glossary of Terms ··················································································· 41 Acquisition Mode ····················································································· 41 Display Setting ························································································ 42 Persistence ···························································································· 43 XY Mode ······························································································· 43 Storing Waveforms ·················································································· 44 MS420-en-US_V6.0 2/23...
  • Page 4 Appendix A: Specifications ········································································ 72 MULTIMETER ························································································ 76 GENERAL SPECIFICATIONS ···························································· 78 Appendix B: Maintenance and Cleaning ······················································· 79 Appendix C: Charging the Instrument ··························································· 80 Appendix D: Set the Real-time clock ···························································· 81 TWO-YEAR WARRANTY ·································································· 82 MS420-en-US_V6.0 2/23...

  • Page 5: Product Contents

    RODUCT ONTENTS MS420 Instrument 1. AC Adaptor 2. Oscilloscope Probes (2); Grey in color 3. Multimeter test leads (2); One black, one red 4. USB mass storage connection cable 5. Extension module for low capacitance measurements 6. Probe adjustment tools 7.

  • Page 6: Supplied Equipment Safety Information

    The term “Warning” is used in this manual to indicate that, although immediate personal injury is not likely, caution should be taken Notice: The term “Notice” is used in this manual to indicate that damage to the meter or to other equipment can occur MS420-en-US_V6.0 2/23...

  • Page 7: General Safety Information

    Do no operate this instrument without the cover plate secured: If the cover plate or panel has been removed, do not use this product. Do not touch bare conductors MS420-en-US_V6.0 2/23...
  • Page 8 Do not operate this meter in potentially explosive environments. Keep the meter’s surface clean and dry. Use of this device in any manner inconsistent with the uses specified in this manual can possibly compromise the safety protection provided by the meter. MS420-en-US_V6.0 2/23...

  • Page 9: Input Connections

    1. The power adapter is use to supply AC power and for battery recharging 2. Multimeter test leads 3. Multimeter input jacks (L to R: Current 2A-10A input, mA Current input, COM ground input, Voltage/Resistance/Capacitance input) 4. Oscilloscope probes 5. Oscilloscope channel inputs 6. Square wave output jack MS420-en-US_V6.0 2/23...

  • Page 10: Front Panel And Keypad Overview

    RONT ANEL AND EYPAD VERVIEW Figure 3 Description of Meter Front Panel and Keypad (Figure 3) 1. AC adapter Port 2. RS-232C Port 3. USB Port 4. USB Mass Storage Port MS420-en-US_V6.0 2/23...
  • Page 11 27. V: Selects DMM Voltage measurement mode 28. R: Selects DMM impedance, diode, continuity, capacitance measurement mode 29. SET: Toggle AC/DC in the current or voltage multimeter measurement modes; also switches between resistance, diode and capacitance modes while in the resistance mode. MS420-en-US_V6.0 2/23...

  • Page 12: Basic Oscilloscope Functions

    Upon power up, the instrument performs a ‘self check’. The display will show the “press any key to continue……” screen. SCILLOSCOPE ISPLAY CREEN Figure 4: Oscilloscope Display Screen Description of Oscilloscope Display Screen (Figure 4) Battery power status icon ( , , MS420-en-US_V6.0 2/23...
  • Page 13 13. The coupling mode for CH2; “~” AC, “-” DC, and ground 14. The vertical Voltage units scale for CH2 15. The coupling mode for CH1; “~” AC, “-” DC, and ground 16. Vertical Unit Scale for CH1 MS420-en-US_V6.0 2/23...

  • Page 14: Menu Description

    Press MENU again to hide the Function Menu. Use the MENU ▲ or MENU ▼ keys to navigate and select menu functions. Use the soft-keys (F1…F5) to select an available option Figure 5: Menu MS420-en-US_V6.0 2/23...

  • Page 15: Manually Setting The Trigger Position And Time Base

    2. Press ◄ (yellow) or ► (yellow) to adjust the main time base. Press ▲ (yellow) or▼ (yellow) to adjust the trigger horizontal position. 3. Press OPTION again and the following will appear: ◄/► – Time ▲/▼– Trig MS420-en-US_V6.0 2/23...
  • Page 16 (yellow) or ▼ (yellow) to adjust trigger position. 5. Use the OPTION key to toggle between the two modes described above. When triggering in the Alternate trigger mode: 7. Press OPTION and the following will appear: —Time —Trig 2 Figure 8: MS420-en-US_V6.0 2/23...
  • Page 17  Vertical zero position: Ground point, through the adjustment of which the user can regulate the display position of the waveform on the screen.  Main time base: The time value represented by a division in the horizontal direction of the display area. MS420-en-US_V6.0 2/23...

  • Page 18: Recall The Factory Default Settings

    4. Press F2 to select “Auto calibration”. f the ambient temperature varies from the specified operating temperature by more than 5 degrees Celsius, an Auto Calibration should be performed. Refer to Figure 10: Figure 10: Resetting the Oscilloscope MS420-en-US_V6.0 2/23...

  • Page 19: Oscilloscope Input Connections

    Press the MENU key; the function menu will appear on the right side of the screen. Press MENU ▲ or MENU ▼ to select MEAS SET 1. Five selectable options will then be visible at the bottom of the screen. MS420-en-US_V6.0 2/23...

  • Page 20: Data Hold (Freezing The Displayed Reading)

    To freeze any displayed reading or waveform, follow these steps: Press the RUN/STOP key to freeze the screen: STOP appears at the top (right) of the screen. Press the RUN/STOP key again to resume normal mode. Refer to Fig. 12: MS420-en-US_V6.0 2/23...

  • Page 21: Using The Average Mode To Smooth Waveforms

    Press the F3 key to select Average Factors and then press the F4 key to jump to Averages 16. The meter then averages 16 samples (or acquisitions) and displays the final result. Refer to Figure 13: MS420-en-US_V6.0 2/23...

  • Page 22: Persistence Mode (Superimposing Waveforms)

    Press the F2 key to select 1 sec, 2 sec, 5 sec, infinite or OFF. Select a 1, 2, or 5 second waveform display duration as desired. When Infinite is selected the waveform will remain on the screen indefinitely. When OFF is selected, the Persistence function has no effect on displayed waveforms. Refer to Figure 14. MS420-en-US_V6.0 2/23...

  • Page 23: Using Peak Detection To Capture Glitches

    Press MENU ▲ or MENU ▼ to select the ACQU MODE. Four (4) selectable options will appear at the bottom of the screen. Press the F2 key to select Glitch Detect. Refer to Figure 15. Figure 15: Peak Detection MS420-en-US_V6.0 2/23...

  • Page 24: Glossary Of Terms

    Press MENU ▲ or MENU ▼ to select the CH1 Setting. Four (4) selectable options appear at the bottom of the screen. Press the F1 key and select AC. The AC coupling icon will appear on the screen. Refer to Figure 16. MS420-en-US_V6.0 2/23...

  • Page 25: Reversing The Polarity Of The Displayed Waveform

    Press MENU ▲ or MENU ▼ to select CH1 setting. Four (4) selectable options will appear at the bottom of the screen. Press the F4 key to select Inverted. The CH1 inverted waveform will then be displayed on the screen. Refer to Figure 17. Figure 17: Inverted Waveform MS420-en-US_V6.0 2/23...

  • Page 26: Using Mathematical Functions On Waveforms

    5. Press▲ or ▼ to adjust the vertical display position of waveform M. (yellow) o (yellow) Press ◄ r ► to adjust the display time factor for waveform M. Refer to Figure 18. Figure 18: Waveform Mathematical Calculations MS420-en-US_V6.0 2/23...

  • Page 27: Usb Mass Storage Device / Save Waveform Data

    (WAVE1.bin, WAVE2.bin, etc.). Now connect the USB Mass Storage device to a Personal Computer and use the supplied software to transfer and manipulate the stored data. Note: Refer to the HELP utility in the supplied software for further instructions. MS420-en-US_V6.0 2/23...

  • Page 28: Advanced Oscilloscope Functions

    Press MENU ▲ or MENU ▼ to select CH1 SETUP. Four (4) selectable options will appear at the bottom of the screen. Use the soft function keys (F1 through F4) to adjust settings as desired. Refer to Figure 19. Figure 19: Vertical Settings MS420-en-US_V6.0 2/23...
  • Page 29 Press F1 Coupling and then AC to set AC coupling. The DC component contained in the tested signal is blocked. Press F1 Coupling and then DC to set DC coupling. Both DC and AC components contained in the tested signal are permitted. Refer to Figures 20 and 21. MS420-en-US_V6.0 2/23...
  • Page 30 Figure 21: DC Coupling PEN AND LOSE EASUREMENT HANNELS CH1 will be used in this example. Press the F2 Channel key and then OFF to Close CH1. Press the F2 Channel key and then ON to Open CH1. MS420-en-US_V6.0 2/23...

  • Page 31: Setting The Probe Attenuation

    0.001X, 0.002X, 0.005X…10X. The position of the calculated waveform can be adjusted up and down using the CHM ZERO key. The corresponding operation function table Setting Description CH1-CH2 CH1 waveform minus CH2 waveform MS420-en-US_V6.0 2/23...
  • Page 32 — CH M Zero (yellow) ► (yellow) Press ◄ to adjust the range of the M waveform (yellow) (yellow) Press ▲ or ▼ to adjust the position of the M waveform Refer to Figure 22. Figure 22: Waveform Mathematics MS420-en-US_V6.0 2/23...

  • Page 33: Setting The Trigger System

    Video triggering: Perform video field trigger or line trigger on standard video signals. Alternate trigger: Use this mode when the CH1 and CH2 signal frequency differs. The following describes the Edge triggering, Video triggering and Alternating triggering menus respectively. MS420-en-US_V6.0 2/23...

  • Page 34: Edge Triggering

    Acquisition of waveforms can only be performed Normal when the triggering condition is satisfied Sampling is performed on a waveform when one trigger is detected (sampling then stops). Single Move to the next menu MS420-en-US_V6.0 2/23...

  • Page 35: Video Triggering

    The video trigger is designed to capture a video signal format, NTSC, PAL or SECAM. For any other signal type, use the Edge trigger mode. Refer to Figure 24a & b, Figure 25 and Figure 26. Figure 24a (screen 1) and 24b (screen 2): Odd Field Video Trigger MS420-en-US_V6.0 2/23...
  • Page 36 (Synchronization) Even field Set synchronous trigger in video even line Line NUM Set synchronous trigger in video Line Move to next menu When the sync is Line, Field, Odd Field, Even Field, the second page is as follows: MS420-en-US_V6.0 2/23...
  • Page 37 In Alternate trigger mode, the trigger signal is taken from two vertical channels. Alternate trigger mode can be used to observe two signals of differing frequencies. From this menu the user can set a different trigger type for two separate vertical channels. Refer to Figure 27a. MS420-en-US_V6.0 2/23...
  • Page 38 All components are allowed to pass The HF part of the signal is blocked and only the HF Rjc LF component is allowed The LF part of the signal is blocked and only the LF Rjc HF component is allowed MS420-en-US_V6.0 2/23...
  • Page 39 When the sync is Line, Field, Odd Field, Even Field, the menu is as follows: MODU NTSC Common video standard (used in the U.S.) Least common standard (common in (Modulation) PAL/SECAM Europe) Hold-off Move to the Hold-off menu MS420-en-US_V6.0 2/23...
  • Page 40 Move to the Hold-off menu When the ‘Hold-off’ menu is accessed the screen will appear as below: Figure 27b: ‘Hold-off’ menu screen (MS420) Refer to the Table below for details on the ‘Hold-off’ mode: (MS420 only) Function menu Settings Description...

  • Page 41: Glossary Of Terms

    • Single mode: In this mode, the oscilloscope will detect a trigger and capture a waveform each time the user presses the RUN/STOP key. CQUISITION The Acquiring Mode menu is described in the Table shown below. Description Function menu Settings MS420-en-US_V6.0 2/23...

  • Page 42: Display Setting

    Format Displays the relative relationship between vertical voltage and horizontal time. Displays CH1 on the horizontal axis and CH2 on the vertical axis Carry Bitmap Data transmitted in bitmap format (dots) Vectors Data transmitted in vector format (line) MS420-en-US_V6.0 2/23...

  • Page 43: Persistence

    The display style includes Vector and Dot display types, as shown in Figure 28 and 29. Figure 28: Dot Style Figure 29: Vector Style ERSISTENCE The user can select the duration of time that past traces remain on the display. The selections are 1, 2, 5 seconds, Infinite, and OFF. XY M MS420-en-US_V6.0 2/23...

  • Page 44: Storing Waveforms

    Show Set ON to display the waveforms stored in address A, B, C or D. Choose OFF to exit this feature. To save a CH 1 waveform in address A, perform the following steps: MS420-en-US_V6.0 2/23...

  • Page 45: Function Setting Menu (Refer To Table Below)

    Press the MENU button and use the up/down arrow keys to scroll to FUNCTION Description Function menu Recall Factory Set the meter’s settings to their factory default conditions Auto Perform an Auto-calibration procedure Calibration Language Select the desired display language (English, Chinese, Deutsch, or Greek) MS420-en-US_V6.0 2/23...

  • Page 46: Automatic Ranging Measurements

    Measure Root Mean Square (RMS) value of CH2 Measure the Vmax of CH1 Vmax Measure the Vmax of CH2 Measure the Vmin of CH1 Vmin Measure the Vmin of CH2 Measure the Vtop of CH1 Vtop Measure the Vtop of CH2 MS420-en-US_V6.0 2/23...
  • Page 47 Press the MENU ▲ or MENU ▼ key to select MEAS SET 2. Five (5) selectable options will then appear at the bottom of the screen Press the F4 key to select the peak-to-peak value of CH2. The measurement window will appear blue in color and show the peak-to-peak value of CH2 MS420-en-US_V6.0 2/23...
  • Page 48 Turn OFF Autoscale Turn ON Autoscale Mode Vertical Adjust vertical scale without changing horizontal setting Adjust horizontal scale without Horizontal changing vertical setting Adjust the vertical and horizontal settings HORI—VERT Display one or two periods Display multi-period waveforms MS420-en-US_V6.0 2/23...
  • Page 49 4. Press AUTOSET to enter the Autoscale mode; the symbol flickers every half second at the top left of the display 5. Press F2 to select the Horizontal/Vertical mode 6. Press F3 and refer to the display examples below: Fig 32: Autoscale Horizontal - Vertical multi-period waveforms MS420-en-US_V6.0 2/23...
  • Page 50 Fig 33: Autoscale Horizontal - Vertical mono-period waveform Fig 34: Vertical mode multi-period waveform Fig 35: Horizontal mode multi-period waveform MS420-en-US_V6.0 2/23...

  • Page 51: Cursor Measurements

    Press the MENU ▲ or MENU ▼ key to select Curs Meas. Two (2) selectable options appear at the bottom of the screen. Press the F1 key to select the measurement type Voltage. Two dashed lines V1 and V2 will appear on the screen. MS420-en-US_V6.0 2/23...
  • Page 52 The display will also show the result of V1 - V2. Refer to Figure 36-a. Figure 36-a: Use the Cursor for a Voltage Measurement When the MENU button is pressed, the data table appears as shown in Figure 36-b: Figure 36-b: Data Table MS420-en-US_V6.0 2/23...
  • Page 53 Press ◄(yellow) or ►(yellow) to move T2 left and right; the value of T2(relative to the middle of the screen) will display as shown in Figure 37-a: Figure 37-a: Time Measurement using cursor MS420-en-US_V6.0 2/23...

  • Page 54: Square Wave Output Test Signal (5V, 1 Khz)

    The 5V Square Output is available on the jack at the left side of the meter. The 5V digital output has a frequency of 1 KHz and can be used to adjust the probe, as shown as Fig.39 Fig 39: Square-wave test signal MS420-en-US_V6.0 2/23...

  • Page 55: System Status Menu

    Press the MENU ▲ or MENU ▼ key to select SYSTEM STAT. Four (4) selectable options will then appear at the bottom of the screen. Sequentially press F1 through F4 to view the corresponding status information. Refer to Figure 46. Figure 46: System Status MS420-en-US_V6.0 2/23...

  • Page 56: Main Time Base Mode

    Window functions as described in the Table above. (yellow) (yellow) Use the OPTION key and the◄ and ► keys to adjust and vary the Time Base and size of the window zoom. Refer to Figures 47 and 48. Figure 47: Original Window Setting MS420-en-US_V6.0 2/23...
  • Page 57 Figure 48: Window Zoom MS420-en-US_V6.0 2/23...

  • Page 58: Using The Multimeter

    The four (4) banana jack inputs on the face of the meter are, L to R, 10A current, mA current, COM (ground/negative), and Volts/Resistance/Capacitance ULTIMETER ISPLAY INDOW Figure 1: Multimeter Display Window Description Battery status indicator Manual range indicator. In MANUAL mode the user selects the measurement range Measurement mode indicators: DCV: DC Voltage measurement MS420-en-US_V6.0 2/23...
  • Page 59 10. Absolute / Relative measurement modes: The “||” symbols represents absolute measurement (normal) mode. The “ ” symbol represents the relative mode 11. Manual measurement control (user selects measurement range) 12. Color coded scale indicator; Each test mode has a unique color scheme MS420-en-US_V6.0 2/23...

  • Page 60: Making Multimeter Measurements

    Connect the red and black test leads to the resistor or circuit under test. The resistance value will appear on the screen (unit of measure: Ohms) Refer to the example diagram below in Figure 2. Figure 2: Resistance Measurement MS420-en-US_V6.0 2/23...

  • Page 61: Measuring Diode Voltage

    Press the SET key repeatedly until the diode symbol is displayed Connect the red and black leads to the diode and read the displayed voltage Reverse the test lead polarity and perform the test again Refer to the example display screen in Figure 3. Figure 3: Diode Measurement MS420-en-US_V6.0 2/23...

  • Page 62: Continuity Test

    Connect the red and black leads to the test points. If the resistance value is lower than 50Ω the meter will emit an audible tone The meter display will also show the resistance as shown in example Figure 4. Figure 4: Continuity Test MS420-en-US_V6.0 2/23...

  • Page 63: Measuring Capacitance

    Notes: To improve accuracy when the measured value is lower than 5 nF, select the lowest capacitance range and use the Relative mode. Please allow approx. 30 seconds for capacitance measurements larger than 40uF. Refer to the example diagram in Figure 5. Figure 5: Capacitance Measurement MS420-en-US_V6.0 2/23...

  • Page 64: Measuring Dc Voltage

    Press the V key and the DCV symbol will appear at the top of the screen Connect the red and black test leads to the measurement points on the circuit under test; the voltage value will be displayed on the screen Refer to the example diagram, Figure 6. Figure 6: DC Voltage Measurement MS420-en-US_V6.0 2/23...

  • Page 65: Measuring Ac Voltage

    Connect the red and black leads to the measured points and the AC voltage values of measured points will be displayed on the screen. Refer to the example diagram in Figure 7. Figure 7: AC Voltage Measurement MS420-en-US_V6.0 2/23...

  • Page 66: Measuring Dc Current

    Figure 8: 400mA DC Current Measurement To measure a DC current larger than 400 mA, perform the following: Press the A key and the DCA symbol should appear at the top of the screen. Use the SET key to select DCA if necessary. MS420-en-US_V6.0 2/23...

  • Page 67: Measuring Ac Current

    Use the F4 soft-key to select the mA mode Connect the red and black leads to the measured points on the circuit under test; The AC current value will be displayed on the screen. Refer to the example in Figure 10. MS420-en-US_V6.0 2/23...
  • Page 68 Connect the red and black test leads to the measured points on the circuit under test; The AC current value will be displayed on the screen. Press the F4 soft-key to return to the mA measurement mode Refer to the example in Figure 11. Figure 11: AC Current Measurement for 10A MS420-en-US_V6.0 2/23...

  • Page 69: Freezing The Readings (Data Hold)

    In the manual range mode, the measuring range is increased by one stage with each press of the F1 key. When the highest range is reached, the meter jumps to the lowest range MS420-en-US_V6.0 2/23...
  • Page 70 Press the F3 soft-key to select the AUTO range mode. AUTO will display on the upper left side of the screen. Refer to the display example in Figure 13. Figure 13: Automatic/Manual Range Adjustment MS420-en-US_V6.0 2/23...

  • Page 71: Faq

    Additionally, press the AUTO SET key and re-try the previous suggestions. When using average sampling in the sampling mode or when selecting a long display time in the oscilloscope display mode, the display speed is slow; this is normal. MS420-en-US_V6.0 2/23...

  • Page 72: Appendices

    If the operating temperature is exceeded by more than 5 degrees Celsius, an “Auto- calibration” must be performed (system function menu) Sampling Sampling modes Normal sampling, Peak detection, Average value Sampling rate 100MS/s (MS420) Input Input coupling DC, AC Input impedance 1MΩ...
  • Page 73 8 bits resolution (both channels synchronously) Analog digital converter（A/D ） Sensitivity range （V/div） 5mV/div～5V/div(for the BNC connector input） Displacement range ± 10 div (MS420), ±2V(5mV/div ~ 200mV/div) Analog bandwidth 20MHz Single bandwidth Full bandwidth Low frequency response ≥ 5Hz (BNC connector）...
  • Page 74 Voltage difference and time difference between cursors Auto measurements Peak-to-Peak voltage, mean voltage, root mean square value, frequency and period (MS420 0nly):Vmax, Vmin, Vtop, Vbase, Width, Overshoot, Pre-shoot, Rise time, Fall time, ﹢Width, ﹣ Width, ﹢Duty, ﹣Duty, Delay A→B↑, Delay A→B↓ MS420-en-US_V6.0 2/23...
  • Page 75 Bandwidth Up to 6 MHz (DC) Up to full bandwidth (DC) Attenuation rate 1: 1 10: 1 Compensation range 20pf～40pf Input resistance 1MΩ ±2％ 10MΩ ±2％ Input impedance 85pf～115pf 14.5pf～17.5pf Input voltage 150 V DC 300 V DC MS420-en-US_V6.0 2/23...

  • Page 76: Multimeter

    Direct Current (DC) Range Accuracy Resolution 40.00mA ±1.5% ±1 digit 10uA 400.0mA ±1.5% ±1 digit 100uA ±3% ±3 10mA digit Alternating Current (AC) Range Accuracy Resolution 40.00mA ±1.5% ±3 digit 10uA 400.0mA ±2% ±1 digit 100uA ±5% ±3digit 10mA MS420-en-US_V6.0 2/23...
  • Page 77 40.00MΩ ±1.5% ±3 digit 10KΩ Capacitance Range Accuracy Resolution 51.20nF ±3% ±3 digit 10pF 512.0nF 100pF 5.120uF 51.20uF 10nF 100uF 100nF Diode Voltage reading: 0 V ～1.5 V Continuity Test Audible tone when resistance is lower than 50Ω MS420-en-US_V6.0 2/23...

  • Page 78: General Specifications

    10 to 30 °C (50 to 86 °F) 95 % 30 to 40 °C (86 to 104 °F) 75 % 40 to 50 °C (104 to 122 °F) 45 % Storage: -20 to +60 °C (-4 to +140 °F) no condensation MS420-en-US_V6.0 2/23...

  • Page 79: Appendix B: Maintenance And Cleaning

    Warning: Before use, please confirm that the instrument is dry so as to avoid electrical short circuits and personal injury TORAGE OF NSTRUMENT If the test tool is to be stored for an extended time, the lithium battery must be charged before storage MS420-en-US_V6.0 2/23...

  • Page 80: Appendix C: Charging The Instrument

    Use only the same type of lithium battery currently installed in the meter. To access the battery remove the three (3) Philips screws on the rear of the instrument at the top of the stand behind the rubber protective jacket. MS420-en-US_V6.0 2/23...

  • Page 81: Appendix D: Set The Real-Time Clock

    5. Use the ◄ and ► keys to highlight a value for editing; Use the▲ and ▼ arrow keys to change the corresponding value for year, month, date, hours, minutes and second 6. Press the MENU ▲up arrow key to exit the programming mode MS420-en-US_V6.0 2/23...

  • Page 82: Two-Year Warranty

    Calibration, Repair, and Returns: [email protected] Technical Support: https://support.flir.com Copyright © 2023 Teledyne FLIR Commercial Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form www.extech.com This document does not contain any export-controlled information MS420-en-US_V6.0 2/23...

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