Extech Instruments EX623 User Manual page 4

Description
Meter Description
1. Current clamp
2. Clamp opening trigger
3. IR thermometer and Laser Button
4. HOLD/BACKLIGHT button
5. MODE / ZERO button
6. Backlit LCD Display
7. Type K input jacks
8. Multimeter input jacks
9. IR thermometer sensor and Laser pointer (rear)
10. Function switch
11. PEAK button
12. MAX/MIN button
13. Range button
14. Thermocouple display button
15. Battery compartment (rear)
16. Non-Contact Voltage Detector
17. NCV LED indicator
18. Input shutter
Display icons Description
HOLD Data Hold
APO Auto Power Off
AUTO Autoranging
P Peak Hold
DC Direct Current
AC Alternating Current
MAX Max reading
MIN Min reading
Low battery
ZERO DCA or CAP zero
mV or V Milli-volts or Volts (Voltage)
Ω
Ohms (Resistance)
A Amperes (Current)
F Farad (Capacitance)
Hz Hertz (Frequency)
% Duty Ratio
o o
F and C Fahrenheit and Celsius units (Temperature)
T , T , T -T Therocouple 1, Thermocouple 2, Thermocouple difference
1 2 1 2
n, m, μ, M, k
Unit of measure prefixes: nano, milli, micro, mega, and kilo
• ) Continuity test
)
)
Diode test
Laser pointer
4 EX623 V2.2 07/08