Extech Instruments EX330 User Manual page 5

Controls and Jacks
1. AC Voltage Detector Sensor
2. AC Voltage Detector indicator
light
3. LCD
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
-9
n nano (10 ) (capacitance)
-3
m milli (10 ) (volts, amps)
3
k kilo (10 ) (ohms)
6
M mega (10 ) (ohms)
Hz Hertz (frequency)
% Percent (duty ratio)
AC Alternating current
DC Direct current
ºF Degrees Fahrenheit
•))) Continuity
Diode test
Battery status
1
2
3
4
5
6
7
8
9
-6
µ micro (10 ) (amps, cap)
A Amps
F Farads (capacitance)
Ω
Ohms
V Volts
REL Relative
AUTO Autoranging
HOLD Display hold
ºC Degrees Centigrade
EX330-EU-ENG – V4.2 1/08
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