KEW 4300 - Measuring equipment Kyoritsu - Free user manual and instructions
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| Type | Digital Clamp Meter |
| Brand | Kyoritsu |
| Model | KEW 4300 |
| Measurement Functions | AC/DC Voltage, AC/DC Current, Resistance, Continuity, Diode Test, Capacitance, Frequency |
| Display | 4000 counts LCD with backlight |
| AC Current Range | 0-400A / 0-600A (auto-ranging) |
| DC Current Range | 0-400A / 0-600A |
| AC Voltage Range | 0-600V |
| DC Voltage Range | 0-600V |
| Resistance Range | 0-40MΩ |
| Jaw Opening | 30 mm |
| Safety Rating | CAT III 600V |
| Power Supply | 2 x AAA batteries (1.5V) |
| Auto Power Off | Yes, after 30 minutes of inactivity |
| True RMS | Yes |
| Data Hold | Yes |
| Peak Hold | Yes |
| Dimensions | 200 x 70 x 38 mm |
| Weight | Approx. 200 g (including batteries) |
| Accessories Included | Test leads, carrying case, batteries, user manual |
| Warranty | 1 year limited |
Frequently Asked Questions - KEW 4300 Kyoritsu
How to measure AC current with the KEW 4300?
Set the rotary switch to the ACA range, open the clamp jaws, and clamp around one conductor. Read the value on the display. Ensure the conductor is centered for accuracy.
How to measure DC voltage?
Select the DCV range, connect the black test lead to COM and red to V/Ω. Touch probes to the circuit (red to positive, black to negative). The display shows the voltage.
What is the accuracy of the KEW 4300?
Accuracy varies by range: typically ±1.5% for AC voltage, ±1.0% for DC voltage, ±2.0% for AC current, ±1.5% for DC current. Refer to the manual for full specifications.
How to replace the batteries?
Turn off the meter and disconnect test leads. Remove the battery cover screw on the back, open the cover, replace the two AAA batteries (observing polarity), and close the cover.
Does the KEW 4300 have auto-ranging?
Yes, the KEW 4300 features auto-ranging for voltage, current, and resistance measurements. Manual ranging is also available via the RANGE button.
What does CAT III 600V mean?
CAT III 600V indicates the meter is rated for measurements on distribution circuits (e.g., fixed installation) up to 600V phase-to-ground, with transient overvoltage protection.
How to test continuity?
Set the rotary switch to the continuity/ diode position. Connect test leads across the circuit. A continuous beep sounds if the resistance is less than about 50Ω.
Can the KEW 4300 measure inrush current?
Yes, it has a peak hold function to capture inrush currents. Press the PEAK button before applying the load, then read the peak value.
How to use the Data Hold function?
Press the HOLD button to freeze the current reading on the display. Press again to release. The HOLD icon appears when active.
What should I do if the display shows 'OL'?
'OL' means overload (over range). Select a higher measurement range if possible, or the measured value exceeds the meter's capability. Disconnect and ensure correct setup.
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USER MANUAL KEW 4300 Kyoritsu
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Product information
Brand : Kyoritsu
Model : KEW 4300
Category : Measuring equipment