MA640 Datasheet, PDF (4/12 Pages) Extech Instruments Corporation. – 600Amp AC/DC True RMS Clamp Meter

Description
Meter Description
1. Current clamp
2. Clamp opening trigger
3. Hx % Button
4. MODE Button
5. LCD Display
6. Common Input jack
7. NCV sensor
8. NCV LED indicator
9. HOLD/BACKLIGHT Button and FUNCTION switch
10. RANGE Button
11. MAX-MIN Button
12. RELATIVE Button
13. Battery compartment (rear)
14. Positive Input jack
Display icons Description
HOLD
Data Hold
AUTO
Autoranging
DC
Direct Current
AC
Alternating Current
MAX
Max reading
MIN
Min reading
Low battery
REL
Relative
V
Volts (Voltage)
Ω
Ohms (Resistance)
A
Amperes (Current)
F
Farad (Capacitance)
Hz
Hertz (Frequency)
%
o_{F and} o_C
Duty Ratio
Fahrenheit and Celsius units (Temperature)
n, m, μ, M, k Unit of measure prefixes: nano, milli, micro, mega, and kilo
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Continuity test
Diode test
4
MA640 V2.1 07/08