GW Instek GDM-541 User Manual
  1. Manuals
  2. Brands
  3. GW Instek Manuals
  4. Multimeter
  5. GDM-541
  6. User manual

GW Instek GDM-541 User Manual

Handheld digital multimeter
Hide thumbs
Table of Contents

Advertisement

Quick Links

Handheld Digital Multimeter
GDM-541/533
USER MANUAL
ISO-9001 CERTIFIED MANUFACTURER

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the GDM-541 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for GW Instek GDM-541

Summary of Contents for GW Instek GDM-541

  • Page 1 Handheld Digital Multimeter GDM-541/533 USER MANUAL ISO-9001 CERTIFIED MANUFACTURER...
  • Page 2 This manual contains proprietary information, which is protected by copyright. All rights are reserved. No part of this manual may be photocopied, reproduced or translated to another language without prior written consent of Good Will company. The information in this manual was correct at the time of printing. However, Good Will continues to improve products and reserves the rights to change specification, equipment, and maintenance procedures at any time without notice.

  • Page 3: Table Of Contents

    Table of Contents Table of Contents SAFETY INSTRUCTIONS ..........4 GETTING STARTED ............7 GDM-541/533 Overview .......... 8 Function Dial and Function Buttons ...... 12 OPERATION ..............14 Operating Instructions .......... 15 AC Voltage Measurement ........15 DC Voltage Measurement ........17 AC/DC Millivolt Voltage Measurement ....

  • Page 4: Safety Instructions

    GDM-541/533 User Manual AFETY INSTRUCTIONS This chapter contains important safety instructions that you must follow during operation and storage. Read the following before any operation to ensure your safety and to keep the instrument in the best possible condition. Electrical Symbols These safety symbols may appear in this manual or on the instrument.
  • Page 5 SAFETY INSTRUCTIONS It is applicable to testing and measuring circuits CAT IV connected atthe source of the building’s low- voltage MAINS installation. Safety Instructions The meter is designed and manufactured according to IEC61010-1 safety standard, and conforms to CAT III 1000V, CAT IV 600V, and pollution degree 2.
  • Page 6 GDM-541/533 User Manual Place the function dial in the correct position before measurement.  Before measuring resistance, diode, continuity, or capacitance,  switch off the power supply of the circuit, and fully discharge all capacitors. Before measuring current, make sure the fuses are intact.

  • Page 7: Getting Started

    GETTING STARTED ETTING STARTED This chapter describes the GDM-541/533 in a nutshell, including its main features and front / rear panel introduction. GDM-541 GDM-533 GDM-541/533 Overview .......... 8 Overview ..................... 8 Accessories ..................8 External Structure ................9 LCD Display ..................10 Function Dial and Function Buttons ......

  • Page 8: Gdm-541/533 Overview

    GDM-541/533 User Manual GDM-541/533 Overview Overview The GDM-541/533 is a handheld true RMS digital multimeter with high reliability and security (GDM-533: 6000 counts; GDM-541: 22000 counts). With large screen, high resolution analog pointer display, full scale overload protection, and unique appearance design, it becomes a new practical electrical measuring meter.

  • Page 9: External Structure

    GETTING STARTED External Structure Item Index Description NCV detector Indicator light LCD display Function buttons Function dial Input terminals USB access port Test lead slots Nut for external holder Battery compartment fixing screw Tilt stand...

  • Page 10: Lcd Display

    GDM-541/533 User Manual LCD Display GDM-533 GDM-541 Symbol Description Measured voltage is >30V (AC or DC) Data hold Negative reading AC/DC measurement AC/DC Low battery indication Auto range Diode test Continuity test Relative value measurement kΩ, MΩ, Ω Resistance units: ohm, kilohm, megaohm...
  • Page 11 GETTING STARTED Data transmission Transistor magnification (GDM-541) Non-contact voltage detection P-MAX/P- Peak measurement Maximum/Minimum measurement MAX/MIN Celsius/Fahrenheit (GDM-533) °C/°F Low impedance measurement (GDM-533) Transistor magnification measurement (GDM-541) Auto power off True RMS...

  • Page 12: Function Dial And Function Buttons

    AC/DC voltage measurement/Frequency and duty ratio measurement (GDM-533) AC/DC millivolt voltage measurement/Frequency and duty ratio measurement Diode test/Continuity test/Resistance measurement/Capacitance measurement Transistor magnification measurement (GDM-541) Frequency and duty ratio measurement AC/DC microampere current measurement/Frequency and duty ratio measurement AC/DC milliampere current measurement/Frequency...

  • Page 13: Function Buttons

    GETTING STARTED Function Buttons Button Description Short press to switch between functions in each compound function position. Short press to enter the manual range mode and change the range. Long press to exit the manual range mode. Short press to switch between frequency and duty ratio measurement.
  • Page 14 GDM-541/533 User Manual PERATION Operating Instructions .......... 15 AC Voltage Measurement ........15 DC Voltage Measurement ........17 AC+DC Voltage Measurement (GDM-541) ......18 AC/DC Millivolt Voltage Measurement ....19 LoZ (low impedance) ACV Measurement (GDM-533) ................21 Resistance Measurement ........23 Continuity Test ............

  • Page 15: Operation

    OPERATION Operating Instructions Please check the internal batteries first. If “ ” is displayed, replace the batteries in time. Please also pay attention to the warning sign “ ” beside the input terminals, which indicates that the measured voltage or current must not exceed the values marked on the meter.
  • Page 16 GDM-541/533 User Manual 3. Short press the SELECT button to switch to AC voltage measurement or LPF ACV measurement (GDM-541, manual maximum range by default) if required. 4. Connect the test leads with the measured load or power supply in parallel.

  • Page 17: Dc Voltage Measurement

    OPERATION DC Voltage Measurement Wire Connection Diagram 1. Insert the red test lead into the Steps of Measurement terminal, and black test lead into the COM terminal. 2. Turn the function dial to the , or position. 3. Short press the SELECT button to switch to DC voltage SELECT measurement if required.

  • Page 18: Ac+Dc Voltage Measurement (Gdm-541)

    GDM-541/533 User Manual AC+DC Voltage Measurement (GDM-541) 1. Insert the red test lead into the terminal, Steps of and black test lead into the COM terminal. Measurement 2. Turn the function dial to the position. 3. Short press the SELECT button to switch to AC+DC voltage measurement.

  • Page 19: Ac/Dc Millivolt Voltage Measurement

    OPERATION AC/DC Millivolt Voltage Measurement Wire Connection Diagram 1. Insert the red test lead into the Steps of Measurement terminal, and black test lead into the COM terminal. 2. Turn the function dial to the position. 3. Short press the SELECT button to switch to AC/DC millivolt voltage measurement if required.
  • Page 20 GDM-541/533 User Manual  Do not input a voltage over 1000V or it may damage the meter. Caution  Be cautious to avoid electric shock when measuring high voltages.  After completing the measurement, disconnect the test leads from the circuit under test.

  • Page 21: Loz (Low Impedance) Acv Measurement (Gdm-533)21

    OPERATION LoZ (low impedance) ACV Measurement (GDM-533) Wire Connection Diagram 1. Insert the red test lead into the or Steps of Measurement terminal, and black test lead into the COM terminal. 2. Turn the function dial to the position. 3. Connect the test leads with the measured load or power supply in parallel.
  • Page 22 GDM-541/533 User Manual  Do not input a voltage over 1000V or it may damage the meter. Caution  Be cautious to avoid electric shock when measuring high voltages.  After completing the measurement, disconnect the test leads from the circuit under test.

  • Page 23: Resistance Measurement

    OPERATION Resistance Measurement Wire Connection Diagram 1. Insert the red test lead into the Steps of Measurement terminal, and black test lead into the COM terminal. 2. Turn the function dial to the position. 3. Touch the probes to the test points in the circuit.
  • Page 24 GDM-541/533 User Manual  Use caution when working with voltages above AC 30Vrms, 42Vpeak or DC 60V. Such Caution voltages pose a shock hazard.  If the measured resistor is open or the resistance exceeds the maximum range, the LCD will display “OL”.

  • Page 25: Continuity Test

    OPERATION Continuity Test Wire Connection Diagram Steps of 1. Insert the red test lead into the Measurement terminal, and black test lead into the COM terminal. 2. Turn the function dial to the position. 3. Short press the SELECT button to switch to continuity test.
  • Page 26 GDM-541/533 User Manual  Use caution when working with voltages above AC 30Vrms, 42Vpeak or DC 60V. Such Caution voltages pose a shock hazard.  Before testing continuity, switch off the power supply of the circuit, and fully discharge all...

  • Page 27: Diode Test

    OPERATION Diode Test Wire Connection Diagram 1. Insert the red test lead into the Steps of Measurement terminal, and black test lead into the COM terminal. 2. Turn the function dial to the position. 3. Short press the SELECT button to switch to diode test if required.
  • Page 28 GDM-541/533 User Manual 6. Measured value <0.12V: The diode may be damaged; the red indicator light is on. Measured value within 0.12V~2V: The diode is normal; the green indicator light is on (for reference only). 7. If the diode is open or its polarity is reversed, the LCD will display “OL”.

  • Page 29: Capacitance Measurement

    OPERATION Capacitance Measurement Wire Connection Diagram 1. Insert the red test lead into the Steps of terminal, and black test lead into the COM Measurement terminal. 2. Turn the function dial to the position. 3. Short press the SELECT button to switch to capacitance measurement.
  • Page 30 GDM-541/533 User Manual  Use caution when working with voltages above AC 30Vrms, 42Vpeak or DC 60V. Such Caution voltages pose a shock hazard.  Before measuring, fully discharge all capacitors (especially high-voltage capacitors) to avoid damage to the meter and user.

  • Page 31: Transistor Magnification (Hfe) Measurement (Gdm-541)

    OPERATION Transistor Magnification (hFE) Measurement (GDM-541) Wire Connection Diagram 1. Turn the function dial to the hFE position. Steps of Measurement 2. Insert the adapter socket into the input terminals. 3. Insert the three pins of the transistor under test into the corresponding holes of the adapter socket.

  • Page 32: Frequency/Duty Ratio Measurement

    GDM-541/533 User Manual Frequency/Duty Ratio Measurement Wire Connection Diagram 1. Insert the red test lead into the Steps of Measurement terminal, and black test lead into the COM terminal. 2. Turn the function dial to the position. 3. Short press the...

  • Page 33: Temperature Measurement (Gdm-533)

    OPERATION Temperature Measurement (GDM-533) Wire Connection Diagram 1. Turn the function dial to the °C°F position. Steps of Measurement 2. Insert the K-type thermocouple into the adapter socket, and then insert the adapter socket into the input terminals. 3. Bring the temperature sensing end of the thermocouple close to the object surface under test.
  • Page 34 GDM-541/533 User Manual  Only K-type thermocouple is applicable.  The LCD displays “OL” when the meter is Caution turned on.  The measured temperature should be less than 230°C/446°F (°F = °C × 1.8 + 32)

  • Page 35: Ac/Dc Current Measurement

    OPERATION AC/DC Current Measurement Wire Connection Diagram 1. Insert the red test lead into the mA/μA or A Steps of terminal, and black test lead into the COM Measurement terminal. 2. Turn the function dial to the , or position. 3.
  • Page 36 GDM-541/533 User Manual 6. When measuring AC current, short press the button to display the frequency/duty ratio of the measured current.  To prevent possible electric shock, fire, or personal injury, switch off the power supply Caution of the circuit, and then connect the meter with the circuit in series before measuring the current.

  • Page 37: Non-Contact Voltage (Ncv) Detection

    OPERATION Non-Contact Voltage (NCV) Detection Wire Connection Diagram 1. Turn the function dial to the NCV position. Steps of Measurement 2. Bring the NCV detector (top left corner of the meter) close to the wire (AC) under test. 3. If the voltage of the wire is ≥50Vrms (frequency: 50Hz/60Hz), the red indicator light will be on and the buzzer will beep.
  • Page 38 GDM-541/533 User Manual  The detected voltage level varies with the distance between the NCV detector and the Caution wire under test.  The detected voltage level is for reference only, not for specific measurement. The frequency of the detected voltage should be 50Hz/60Hz.

  • Page 39: Usb Data Transmission

    USB module to disable data transmission, and “ ” will disappear. 4. To recover this function, long press the button or insert the USB module. 5. The USB communication software can be downloaded from the official website of GW INSTEK (www.gwinstek.com).

  • Page 40: Others

    GDM-541/533 User Manual Others 1. Auto power off: During measurement, if there Steps of is no operation for 15 minutes, the meter will Measurement automatically shut down to save power; before the automatic shutdown, the buzzer will beep for warning. Users can wake the meter up by pressing the SELECT button.

  • Page 41: Specifications

    Electromagnetic compatibility: Conforms to EN61326-1:2006 and EN61326-2-2:2006 standards Battery: 4×1.5V AAA Dimensions: 186mm×89mm×49mm Weight: 420g (GDM-541), 400g (GDM-533) (with battery) Safety standard: IEC 61010-1: CAT III 1000V/CAT IV 600V Certification: CE Pollution degree: 2 Information of usage: Indoor and outdoor...

  • Page 42: Electrical Specifications

    DC Voltage ..................43 AC Voltage ..................44 AC+DC Voltage ................46 Resistance ..................47 Continuity and Diode ..............48 Transistor Magnification (GDM-541) .......... 48 Capacitance ..................49 Temperature (GDM-533) ............... 50 DC Current ..................50 AC Current ..................51 Frequency/Duty Ratio ..............

  • Page 43: Dc Voltage

    SPECIFICATIONS DC Voltage GDM-541 Range Resolution Accuracy 220.00mV 0.01mV ± (0.1%+5) 2.2000V 0.1mV 22.000V ± (0.05%+5) 220.00V 10mV 1000.0V 0.1V ± (0.1%+5) GDM-533 Range Resolution Accuracy 60.00mV 0.01mV ± (0.8%+5) 600.0mV 0.1mV ± (0.8%+3) 6.000V 0.001V ± (0.5%+3) 60.00V 0.01V ±...

  • Page 44: Ac Voltage

    GDM-541/533 User Manual AC Voltage GDM-541 Range Resolution Frequency Response Accuracy 40Hz~1kHz ± (1.0%+10) 220.00mV 0.01mV 1kHz~10kHz ± (1.5%+30) 40Hz~1kHz ± (0.8%+10) 2.2000V 0.1mV 1kHz~10kHz ± (1.2%+50) 40Hz~100Hz (LPF) ± (1.2%+50) 40Hz~1kHz ± (0.8%+10) 22.000V 1kHz~10kHz ± (1.2%+50) 40Hz~100Hz (LPF) ±...
  • Page 45 Accuracy guarantee (GDM-533): 2%~100% of 60mV range, 1%~100%  of other ranges; short circuit allows least significant digit ≤3 Accuracy guarantee (GDM-541): 1%~100% of range at  40Hz~1kHz, 10%~100% of range at 1kHz~10kHz; short circuit allows least significant digit ≤10 The AC crest factor can be ≤3.0 at 3000 counts, and can only be...

  • Page 46: Ac+Dc Voltage

    GDM-541/533 User Manual AC+DC Voltage GDM-541 Range Resolution Frequency Response Accuracy 2.2000V 0.1mV 40Hz~500Hz ± (1.8%+70) 22.000V 40Hz~500Hz ± (1.8%+70) 220.00V 10mV 40Hz~500Hz ± (1.8%+70) 1000.0V 0.1V 40Hz~500Hz ± (4.0%+70)  AC voltage display: True RMS  Input impedance: About 10MΩ...

  • Page 47: Resistance

    SPECIFICATIONS Resistance GDM-541 Range Resolution Accuracy 220.00Ω 0.01Ω 2.2000kΩ 0.1Ω ± (0.5+10) 22.000kΩ 1Ω 220.00kΩ 10Ω 2.2000MΩ 100Ω ± (0.8+10) 22.000MΩ 1kΩ ± (1.5%+10) 220.00MΩ 10kΩ ± (3.0%+50) GDM-533 Range Resolution Accuracy 600.0Ω 0.1Ω ± (1.2%+2) 6.000kΩ 1Ω 60.00kΩ 10Ω...

  • Page 48: Continuity And Diode

    GDM-541/533 User Manual Continuity and Diode Range Resolution Remarks Broken circuit: Resistance ≥70Ω, no beep 0.1Ω Well-connected circuit: Resistance <50Ω, audio/visual alarm Open circuit voltage: About 3V For normal diodes, the buzzer will beep once. 0.001V For short circuit, the buzzer will beep for a long time.

  • Page 49: Capacitance

     Overload protection: 1000V  Measurement result = displayed value – capacitance of open- circuit test leads  For capacitance ≤1μF (GDM-533) and ≤22nF (GDM-541), it is recommended to use the REL mode to deduct the open circuit reading.  Accuracy guarantee: 1%~100% of range ...

  • Page 50: Temperature (Gdm-533)

    GDM-541/533 User Manual Temperature (GDM-533) Range Resolution Accuracy -40~0°C ± (1.0%+3°C) 0.1°C~1°C -40~1000°C 0~300°C ± (1.0%+2°C) 300~1000°C ± (1.0%+3°C) -40~32°F ± (1.0%+6°F) -40~1832°F 32~572°F 0.2°F~2°F ± (1.0%+4°F) 572~1832°F ± (1.0%+6°F)  The measured temperature should be less than 230°C/446°F. DC Current...

  • Page 51: Ac Current

    SPECIFICATIONS  Overload protection: mA/μA range: F1 Fuse 600mA 1000V Φ6x32mm A range: F2 Fuse 11A 1000V Φ10x38mm  Open circuit allows least significant digit ≤5 (GDM-533) and ≤10 (GDM-541).  Accuracy guarantee: 1%~100% of range AC Current GDM-541 Range...
  • Page 52  Accuracy guarantee (GDM-533): 5%~100% of 600.0μA range, 1%~100% of other ranges; open circuit allows least significant digit ≤5  Accuracy guarantee (GDM-541): 1%~100% of range at 40Hz~1kHz, 10%~100% of range at 1kHz~10kHz (the minimum measured current at μA ranges is 30μA); open circuit allows least significant digit ≤10...

  • Page 53: Frequency/Duty Ratio

    ≤100kHz: 200mVrms ≤ input amplitude ≤ 20Vrms >100kHz~1MHz: 600mVrms ≤ input amplitude ≤ 20Vrms >1MHz (GDM-533): 1Vrms ≤ input amplitude ≤ 20Vrms >1MHz~40MHz (GDM-541): 1Vrms ≤ input amplitude ≤ 20Vrms >40MHz (GDM-541): Not specified  Duty ratio measurement is only applicable to square waves.

  • Page 54: Indicator Light

    GDM-541/533 User Manual Indicator Light Function Status Description <36V 50V~1000V (the red indicator light On, red flashes from slow to fast) Continuity On, red No continuity (≥70Ω) On, green Continuity (<50Ω) >2V Diode On, red Breakdown (<0.12V) On, green Conduction (0.12V~2V) ≤1000V...

  • Page 55: Maintenance

    MAINTENANCE AINTENANCE  Before opening the rear cover or battery cover of the meter, switch off the power supply and Caution remove the test leads. General Maintenance Clean the meter casing with a damp cloth and mild detergent.  Do not use abrasives or solvents! If there is any malfunction, stop using the meter and send it for ...

  • Page 56: Battery/Fuse Replacement

    GDM-541/533 User Manual Battery/Fuse Replacement  Battery: 4×1.5V AAA batteries  Fuse: F1 Fuse 600mA 1000V Φ6x32mm (mA/μA input terminal) F2 Fuse 11A 1000V Φ10x38mm (A input terminal)  When “ ” is displayed, please replace the batteries in time to ensure measurement accuracy.

This manual is also suitable for:

Gdm-533

Table of Contents