Symbols And Annunciators - Extech Instruments Extech 470 User Manual

Controls and Jacks
1. IR Thermometer and laser pointer
2. 4000 count LCD display
3. HOLD and Backlight button
4. SELECT button
5. Function switch
6. mA, uA and A input jacks
7. COM input jack
8. Positive input jack
9. RANGE hold button
10. RELATIVE button
11. Laser pointer button
12. Protective holster
Note: Tilt stand and battery compartment are on rear of unit.

Symbols and Annunciators

•))) Continuity
Diode test
Laser pointer
Battery status
Test lead connection
error
n nano (10
µ micro (10
-3
m milli (10
3
k kilo (10 ) (ohms)
M mega (10
Hz Hertz (frequency)
% Percent (duty ratio)
AC Alternating current
DC Direct current
ºF Degrees Fahrenheit
-9
) (capacitance)
-6
) (amps, cap)
) (volts, amps)
6
) (ohms)
4
A Amps
F Farads (capacitance)
Ω
Ohms
V Volts
REL Relative
AUTO Autoranging
HOLD Display hold
ºC Degrees Centigrade
V5.0 5/04