Gw-instek GDM-398 Manual do Utilizador

Handheld Digital Multimeter GDM-360, GDM-397, GDM-398, GDM-461 USER MANUAL GW INSTEK PART NO. 82DM-46100MA1 ISO-9001 CERTIFIED MANUFACTURER

OVERVIEW 8  Use the proper terminals, function, and range for your measurements.  Do not use or store the Meter in an environment with high temp

GDM-360/397/398/461 User Manual 9  A soft cloth and mild detergent should be used to clean the surface of the Meter when servicing. No abrasives

OVERVIEW 10 The Meter Structure (see figure 1) 1. LCD display 123456 2. Functional buttons 3. Yellow button 4. Blue button 5. Rotary switch 6.

GDM-360/397/398/461 User Manual 11 Rotary Switch The table below describes the relevant functions of each of the rotary switch positions. Rotary Sw

OVERVIEW 12 Functional Buttons The table below describes what operations are performed for each of the buttons. Button Operation Performed LIGHT (ex

GDM-360/397/398/461 User Manual 13 *Note: For the GDM-398, holding the REL key 2 seconds will also display the DATA OUTPUT symbol, however the

OVERVIEW 14 11 The continuity buzzer is on. 12 MAX/MIN Maximum and Minimum reading. 13 Data output is in progress. Note: This symbol has no funct

GDM-360/397/398/461 User Manual 15 mF: Milli-farad. 1 x 10-3 or 0.001 farads µF: Microfarad. 1 x 10-6 or 0.000001 farads. nF: Nanofarad. 1 x 10-9 o

MEASUREMENT OPERATION 16 MEASUREMENT OPERATION A. DC/AC Voltage Measurement (see figure 2) V GDM-360/397/398 AV GDM-461 figure 2 Note The GDM-360 d

GDM-360/397/398/461 User Manual 17 Warning To avoid injury to your person or damage to the Meter from electric shock, please do not attempt to meas

This manual contains proprietary information, which is protected by copyright. All rights are reserved. No part of this manual may be photocopied,

MEASUREMENT OPERATION 18 Note  In each range, the Meter has an input impedance of 10MΩ except for the mV range which has an input impedance of 300

GDM-360/397/398/461 User Manual 19 B. DC/AC Current Measurement (see figure 3) A GDM-360/397/398 A GDM-461 figure 3

MEASUREMENT OPERATION 20 Warning Before connecting the Meter to the return circuit to be tested, cut off the current of the return circuit. If the

GDM-360/397/398/461 User Manual 21 GDM-360/461: Displays the true rms value. 5. Press Hz% (GDM-360/397/398) or the yellow button (GDM-461) to obt

MEASUREMENT OPERATION 22 C. Resistance Measurement (see figure 4) mAuA COM VΩHz figure 4

GDM-360/397/398/461 User Manual 23 Warning To avoid damaging the Meter or the DUT, disconnect power from the circuit and discharge all high-voltage

MEASUREMENT OPERATION 24 Note  The test leads can add 0.2Ω to 0.5Ω of error to the resistance measurement. To obtain precise readings for low-resi

GDM-360/397/398/461 User Manual 25 D. Testing for Continuity (see figure 5) figure 5

MEASUREMENT OPERATION 26 Warning To avoid damage to the Meter or to the device under test, disconnect the circuit power and discharge all high-volta

GDM-360/397/398/461 User Manual 27 E. Testing Diodes (see figure 6) figure 6

Table of Contents 1 Table of Contents OVERVIEW...

MEASUREMENT OPERATION 28 Warning To avoid possible damage to the Meter and to the device under test, disconnect the circuit power and discharge all

GDM-360/397/398/461 User Manual 29  Connect the test leads to the proper terminals as said above to avoid errors. The LCD will display OL to ind

MEASUREMENT OPERATION 30 F. Capacitance Measurement (see figure 7) mAuA VΩHz figure 7

GDM-360/397/398/461 User Manual 31 Warning To avoid damage to the Meter or to the equipment under test, disconnect the circuit power and discharge

MEASUREMENT OPERATION 32 3. Connect the test leads to the DUT. The measured value shows on the display. Note  It takes a longer time to measure a

GDM-360/397/398/461 User Manual 33 G. Frequency Measurement (see figure 8) GDM-360/397/398 GDM-461 figure 8 Warning To avoid personal harm, do n

MEASUREMENT OPERATION 34 2. Set the rotary switch to Hz%; frequency measurement is set to (Hz) as default, otherwise press the Hz% button (GDM-360/

GDM-360/397/398/461 User Manual 35 H. Temperature Measurement (GDM-397 only) (see figure 9) figure 9

MEASUREMENT OPERATION 36 Warning To avoid harm to yourself, do not input higher than DC 60V or AC 30V voltages. To measure temperature, connect th

GDM-360/397/398/461 User Manual 37 I. Transistor hFE Measurement (GDM-398 only) (see figure 10) figure 10

GDM-360/397/398/461 User Manual 2 MAX MIN button (GDM-360/397/398 only) ...

MEASUREMENT OPERATION 38 1. Set the rotary switch to hFE. 2. Insert the multi-purpose socket into the input terminal as shown on figure 10. 3. In

GDM-360/397/398/461 User Manual 39 J. EF Function (GDM-398 only) (see figure 11) figure 11

MEASUREMENT OPERATION 40 To use the EF function, connect the Meter as follows: 1. Set the rotary switch to EF and remove the test lead from the inp

GDM-360/397/398/461 User Manual 41 Hold Mode Warning To avoid possibility of electric shock, do not use Hold mode to determine if circuits are with

MEASUREMENT OPERATION 42 RANGE button  Press RANGE to enter the manual ranging mode; the Meter beeps.  Press RANGE to step through the ranges av

GDM-360/397/398/461 User Manual 43  Press PEAK to step the display through Peak Max and Peak Min readings.  Press and hold PEAK for over 2 seco

MEASUREMENT OPERATION 44 The Use of Relative Value Mode The REL mode applies to all measurement functions except frequency/duty cycle measurement.

GDM-360/397/398/461 User Manual 45 The BLUE button It is used for selecting the required measurement function when there is more than one function

GENERAL SPECIFICATIONS 46 GENERAL SPECIFICATIONS  Maximum Voltage between any Terminals and Ground: Refer to the different input ranges for the

GDM-360/397/398/461 User Manual 47  Overload indication: Display OL  Battery Deficiency: Display  Temperature:  Operating: 0˚C to

Table of Contents 3 Replacing the Fuses ...

GENERAL SPECIFICATIONS 48 Accuracy Specifications Accuracy: ±(a% reading + b digits), guaranteed for 1 year. Operating temperature：18˚C ~28˚C. Relat

GDM-360/397/398/461 User Manual 49 GDM-360 Range Resolution Accuracy Input Impedance Fixed Value Input 60mV 0.01mV ±(0.8%+3) Around >3000MΩ 1000

GENERAL SPECIFICATIONS 50 AC Voltage GDM-397/398 Range Resolution Accuracy 45~400Hz Input Impedance Fixed Value Input GDM-398 GDM-397 40mV 0.01mV

GDM-360/397/398/461 User Manual 51 GDM-360 Range Resolution Accuracy Input Impedance Fixed Value Input 45~1kHz >1kHz~3kHz 60mV 0.01mV ±(1.2%+5)

GENERAL SPECIFICATIONS 52 GDM-461 Range Resolution Accuracy Input Impedance Fixed Value Input 45~1kHz >1kHz~10kHz 220mV 0.01mV ±(1.0%+10) ±(1.5%+

GDM-360/397/398/461 User Manual 53 DC Current GDM-397/398 Range Resolution Accuracy Overload Protection 400μA 0.1μA ±(1.0%+2) Fuse 1: F600mA H 1000

GENERAL SPECIFICATIONS 54 GDM-360 Range Resolution Accuracy Overload Protection 600μA 0.1μA ±(1.0%+3) Fuse 1: F600mA H 1000V,φ6.35 x 31.8mm 6000μA 1

GDM-360/397/398/461 User Manual 55 GDM-461 Range Resolution Accuracy Overload Protection 220μA 0.01μA ±(0.5%+10) Fuse 1: F600mA H 1000V,φ6.35 x 31.

GENERAL SPECIFICATIONS 56 AC Current GDM-397/398 Range Resolution Accuracy 45Hz~400Hz Overload Protection 400μA 0.1μA ±(1.2%+5) Fuse 1: F600mA H 10

GDM-360/397/398/461 User Manual 57 GDM-360 Range Resolution Accuracy Overload Protection 45~1kHz 1kHz~3kHz 600μA 0.1μA ±(1.2%+5) ±(1.5%+5) Fuse 1:

OVERVIEW 4 OVERVIEW This User Manual covers information on safety and cautions. Please read the relevant information carefully and observe all the W

GENERAL SPECIFICATIONS 58 GDM-461 Range Resolution Accuracy Overload Protection 45~1kHz >1kHz~10kHz 220μA 0.01μA ±(0.8%+10) ±(1.2%+50) Fuse 1: F6

GDM-360/397/398/461 User Manual 59 Resistance GDM-397/398 Range Resolution Accuracy Overload Protection Remark 400Ω 0.1Ω ±(1.2%+2) 1000V dc / ac

GENERAL SPECIFICATIONS 60 GDM-360 Range Resolution Accuracy Overload Protection Remark 600Ω 0.1Ω ±(1.2%+2) 1000V dc / ac (Vpp) When measuring below

GDM-360/397/398/461 User Manual 61 GDM-461 Range Resolution Accuracy Overload Protection Remark 220Ω 0.01Ω ±(0.5%+10) 1000V dc / ac (Vpp) When mea

GENERAL SPECIFICATIONS 62 Capacitance GDM-397/398 Range Resolution Accuracy Overload Protection Remark 40nF 0.01nF ±(3.0%+5) 1000V dc / ac (Vpp) T

GDM-360/397/398/461 User Manual 63 GDM-360 Range Resolution Accuracy Overload Protection Remark 40nF 0.01nF ±(3.0%+5) 1000V dc / ac (Vpp) There is

GENERAL SPECIFICATIONS 64 GDM-461 Range Resolution Accuracy Overload Protection Remark 22nF 0.001nF ±(3.0%+5) 1000V dc / ac (Vpp) There is around 5

GDM-360/397/398/461 User Manual 65 Frequency Model Range Accuracy Maximum Resolution GDM-397/398/360 10Hz~10MHz ±(0.1%+4) 0.01Hz GDM-461 10Hz~220MH

GENERAL SPECIFICATIONS 66 Diode Test Model Resolution Remarks Overload Protection GDM-360/397/398 0.001V Open circuit voltage around 2.8V 1000Vdc /

GDM-360/397/398/461 User Manual 67 Temperature Measurement (GDM-397 only) Range Resolution Accuracy Overload Protection ˚C 1˚C (-40~-20˚C): -(8%+5)

GDM-360/397/398/461 User Manual 5 Unpacking Inspection Open the package case and take out the Meter. Check the following items carefully to see if

MAINTENANCE 68 MAINTENANCE This section provides basic maintenance information including battery and fuse replacement instructions. Warning Do not

GDM-360/397/398/461 User Manual 69  Do not use or store the Meter in a place of humidity, high temperature or in the presence of explosives, infl

MAINTENANCE 70 Warning To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the

GDM-360/397/398/461 User Manual 71 Replacing the Fuses figure 13

MAINTENANCE 72 Warning To avoid electrical shock or arc blast, or personal injury or damage to the Meter, use specified fuses ONLY in accordance wit

GDM-360/397/398/461 User Manual 73 10A range: F2, 10A H 1000V,φ10.3x38.1mm. (CE) 6. Rejoin the case bottom and case top, and reinstall the scre

OVERVIEW 6 Safety Information This Meter complies with the EN61010-1 and EN61010-2-030 standards: in pollution degree 2, overvoltage category (CAT.

GDM-360/397/398/461 User Manual 7 Rules for Safe Operation Warning To avoid possible electric shock or personal injury, and to avoid possible damag