![EXTECH EX840 [4/12] Description](/img/pdf.png)
EXTECH EX840 [4/12] Description
![EXTECH EX840 [4/12] Description](/views2/1667623/page4/bg4.png)
EX840-EU-EN-V5.3-3/12
4
Description
Meter Description
1. Current clamp
2. Clamp opening trigger
3. Data Hold Button
4. Mode
5. Peak
6. Range
7. DCA Zero
8. MIN/MAX
9. Backlit LCD Display
10. Test lead input jacks
11. IR thermometer and laser pointer (rear)
12. Backlight Button
13. Laser pointer button
14. Function switch
Display icons Description
HOLD Data Hold
Minus sign Negative reading display
0 to 3999 Measurement display digits
ZERO Zero
P Peak value
AUTO Auto Range mode
DC/AC Direct Current / Alternating
Current
MAX Max reading
MIN Min reading
Low battery
mV or V Milli-volts or Volts (Voltage)
Ω Ohms (Resistance)
A Amperes (Current)
F Farad (Capacitance)
Hz Hertz (Frequency)
o
F and
o
C Fahrenheit and Celsius units (Temperature)
n, m, μ, M, k Unit of measure prefixes: nano, milli, micro, mega, and kilo
•
)
)
) Continuity test
Diode test
Laser pointer
1
2
3
5
6
9
10
11
12
13
14
8
4
7
Содержание
- Extech ex840 true rms 1000 amp extech ex840 true rms 1000 amp clamp meter with ir thermometer 1
- User s guide 1
- International safety symbols 2
- Introduction 2
- Safety 2
- Safety notes 2
- Warnings 2
- Cautions 3
- Description 4
- Display icons description 4
- Meter description 4
- Ac current measurements 5
- Ac dc voltage measurements 5
- Correct incorrect 5
- Operation 5
- Capacitance measurements 6
- Frequency measurements 6
- Resistance measurements 6
- Continuity measurements 7
- Diode test 7
- Type k temperature measurements 7
- Diameter of spot 8
- Distance to object 8
- Non contact infrared temperature measurements 8
- Automatic power off 9
- Data hold 9
- Lcd backlight button 9
- Max min 9
- Peak hold 9
- Temperature units f c 9
- Battery replacement 10
- Cleaning and storage 10
- Maintenance 10
- Ex840 eu en v5 3 12 11 11
- Specifications 11
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