Table Of Contents - Extech Instruments EX520A User Manual

Table of contents

1 Introduction........................................................................1
2 Safety ................................................................................2
2.1 International Safety Symbols ......................................... 3
2.2 Input Protection Limits ................................................. 3
2.3 FCC Compliance ........................................................ 4
3 Product Description ............................................................5
3.1 Meter Front ............................................................... 5
3.2 Meter Back ............................................................... 6
3.3 Button Descriptions..................................................... 7
3.4 Display Description ..................................................... 8
4 Meter Power .......................................................................9
4.1 Automatic Power Off (APO)........................................... 9
5 Operation ......................................................................... 10
5.1 Automatic and Manual Range ..................................... 10
5.2 MODE Button .......................................................... 10
5.3 LCD Backlight.......................................................... 11
5.4 Maximum and Minimum Readings................................ 11
5.5 Relative (REL) Mode ................................................. 11
5.6 Data Hold ............................................................... 12
5.7 Low Pass Filter (LPF) ................................................ 12
5.8 AC/DC Voltage (Frequency, Duty Cycle)
Measurements ......................................................... 13
5.8.1
5.9 Low Impedance (LoZ) Voltage Measurements ................ 15
5.10 10 A AC/DC Current Measurements ............................. 16
5.10.1 Frequency and Duty Cycle of 10 A AC Current
5.11 µA, mA AC/DC Current Measurements.......................... 17
5.11.1 Frequency and Duty Cycle of µA and mA AC
5.12 Resistance Measurements ......................................... 19
5.13 Continuity Test ......................................................... 20
5.14 Diode Test............................................................... 21
5.15 Capacitance Measurements ....................................... 23
5.16 Frequency and Duty Cycle Measurements
(Electronic) ............................................................. 24
#NAS100179; r. AA/97576/97580; en-US
Frequency and Duty Cycle of AC Voltage
Measurements .............................................. 14
Measurements .............................................. 16
Current Measurements.................................... 18
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