Extech Instruments EX330, User Manual

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Model EX330 - Version 4.0 – 05/06 3
Controls and Jacks
1. AC Voltage Detector Sensor
2. AC Voltage Detector indicator light
3. LCD
display
4. RELATIVE push-button
5. MODE button
6. Non-contact AC Voltage Detector test
button
7. Rotary function dial
8. 10 ampere test lead jack
9. COM test lead jack
10. Test lead jack for voltage, milli-amp,
micro-amp, resistance, capacitance,
frequency, and temperature functions
11. RANGE button
12. HOLD button
13. Protective rubber holster (must be
removed to access the rear battery
compartment)
Display Symbols and Annunciators
•))) Continuity
Diode test
Battery status
n nano (10
-9
) (capacitance)
µ micro (10
-6
) (amps, cap)
m milli (10
-3
) (volts, amps) A Amps
k kilo (10
3
) (ohms) F Farads (capacitance)
M mega (10
6
) (ohms)
Ω
Ohms
Hz Hertz (frequency) V Volts
% Percent (duty ratio) REL Relative
AC Alternating current AUTO Autoranging
DC Direct current HOLD Display hold
ºF Degrees Fahrenheit ºC Degrees Centigrade
1
2
3
4
5
6
7
8
12
13
11
10
9