Extech EX840 True RMS 1000 Amp Clamp Meter with IR Thermometer is a meter that measures AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency, Duty Cycle, Diode Test, Continuity, Type k thermocouple thermometer plus Non-Contact IR Temperature.
This manual provides instructions for the Extech EX840 CAT IV True RMS 1000A Clamp Meter, which measures AC/DC Voltage, Current, Resistance, Capacitance, Frequency, and temperature via Type K thermocouple or Non-Contact IR. It includes safety notes, descriptions of meter functions, and step-by-step operation procedures.
| Current Range | 1000A DC/AC |
|---|---|
| Voltage Range | 1000V DC/AC |
| Resistance Range | 250V DC/AC |
| Temperature Range (Type K) | -20 to 250°C |
| Temperature Range (Type K) | -4 to 482°F |
| Continuity Threshold | < 40 Ω |
| IR Spot to Distance Ratio | 8:1 |
The meter can measure up to 1000A DC/AC.
Select ADC, press the DC ZERO button with no conductor in the jaw, and hold the button until 'ZERO' disappears to exit.
The range is -20 to 250°C (-4 to 482°F).
A tone sounds if the resistance is less than 40 Ω.