Extech Instruments MG302 User Manual page 4

Controls and Jacks
1. 40,000 count LCD display
2. MAX/MIN ( - ) button
3. STORE (<RECALL) button
4. RANGE(SETUP) button
5. INSULATION TEST button
6. MODE button
7. Function switch
8. 10A input jack
9. mA, µA, Insulation (-) jack
10. HOLD (PEAKHOLD>) button
11. REL (+) button
12. EXIT (AC+DC) button
13. Backlight button
14. Positive and Insulation (+) input jack
15. COM input jack
Note: Tilt stand and battery compartment are on rear of unit.
Symbols and Annunciators
•))) Continuity
Diode test
Battery status
) (capacitance) 
-9
n nano (10
µ micro (10 -6 ) (amps, cap)
-3
m milli (10 ) (volts, amps)
A Amps
3
k kilo (10 ) (ohms)
F Farads (capacitance)
M mega (10 6 ) (ohms)

Ohms
Hz Hertz (frequency)
% Percent (duty ratio)
AC Alternating current
DC Direct current
ºF Degrees Fahrenheit
MAX Maximum
No. Serial number
SET Setup parameter
TRMS True RMS
RCL Recall
Auto Power off enabled
Auxiliary Displays
1
2
3
4
5
6
7
8
9
RF transmitter active
PEAK Peak Hold
V Volts
Relative
AUTO Autoranging
HOLD Display hold
ºC Degrees Celsius
MIN Minimum
S second
AC +DC Alternating current + Direct current
STO Store
AUTO Auto Range
Backlight
4
10
11
12
13
14
15
MG302-en-GB_v2.4 6/16