382275 - Uncategorized Extech - Free user manual and instructions
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| Product Type | AC/DC Clamp Meter |
| Model | 382275 |
| Brand | Extech |
| AC Voltage Range | 0.1 mV to 600 V |
| DC Voltage Range | 0.1 mV to 600 V |
| AC Current Range | 0.1 A to 400 A |
| DC Current Range | 0.1 A to 400 A |
| Resistance Range | 0.1 Ω to 40 MΩ |
| Capacitance Range | 1 nF to 4000 µF |
| Frequency Range | 1 Hz to 10 MHz |
| Temperature Range | -20°C to 1000°C |
| Display Counts | 4000 counts |
| True RMS | Yes |
| Auto-ranging | Yes |
| Continuity Test | Yes (buzzer) |
| Diode Test | Yes |
| Data Hold | Yes |
| Backlight | Yes |
| Auto Power Off | Yes (adjustable) |
| Safety Rating | CAT III 600V |
| Power Supply | 2 x AAA batteries (1.5V each) |
| Dimensions | 200 x 70 x 30 mm |
| Weight | 250 g (including batteries) |
| Jaw Opening | 30 mm |
Frequently Asked Questions - 382275 Extech
How do I measure AC voltage with the Extech 382275?
Turn the rotary switch to the AC voltage range (V~). Connect the black test lead to the COM jack and the red test lead to the V/Ω/Hz/temp jack. Touch the probes to the circuit and read the display. The meter features True RMS for accurate readings.
What is the maximum current the clamp can measure?
The Extech 382275 can measure up to 400 A AC/DC. Ensure the conductor is centered in the jaw for best accuracy.
How do I replace the batteries?
Turn off the meter and remove the screw from the battery compartment cover on the back. Replace the two AAA batteries observing polarity, then replace the cover and screw.
Can this meter measure capacitance?
Yes, it measures capacitance from 1 nF to 4000 µF. Select the capacitance range using the rotary switch and connect the capacitor (discharged) to the test leads.
What does the 'Data Hold' button do?
Pressing the Data Hold button freezes the current reading on the display. Press again to release and continue measurements.
Is the Extech 382275 rated for industrial use?
It has a safety rating of CAT III 600V, suitable for industrial and commercial electrical measurements up to 600V phase-to-ground.
How do I measure temperature?
Set the rotary switch to the temperature range (°C/°F). Insert the thermocouple probe (type K) into the COM and V/Ω/Hz/temp jacks. Touch the probe to the object and read the temperature.
What is the accuracy of the AC voltage measurement?
The accuracy for AC voltage is typically ±(1.0% + 5 digits) for the 400mV to 600V ranges at 50-60 Hz. Refer to the manual for full specifications.
Can I measure DC current with the clamp?
Yes, the meter measures DC current up to 400 A. Select the DC current range (A=) and ensure the arrow on the jaw points in the direction of current flow for correct polarity.
How do I reset the meter if it freezes?
Turn the meter off, remove the batteries for 30 seconds, then reinstall them. If the issue persists, check the fuse (if equipped) or contact support.
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