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Fluke 323 Review

This no-mess clamp meter-cum-multimeter has the basic functionality of both devices. A general tester, it can measure current and voltage, as well as resistance and continuity, and performs well in tight spaces.

Good for 400 AC amps, it also a True RMS responder, meaning sharper AC measurements. In short, in the Fluke 323 review we have a good tool for general commercial and residential electrical troubleshooting.

Fluke 323 Clamp Meter

Key Features

  • 400A AC
  • True RMS for AC accuracy
  • Measures to 600V AC/DC
  • Measures resistance
  • Performs continuity checks
  • Slim, ergonomic
  • CAT-IV safety rating to 300V
  • Size: 8.15″ (207mm) x 3″ (75mm) x 1.34″ (34mm)
  • Weight: 9.3oz (265g)

Included

  1. Meter and batteries (AAA x2)
  2. Test leads (with safety shrouds)
  3. Carry pouch
  4. Instructions (fluke 323 manual)

>>>See Here For Current Pricing

In-depth Review of the 323

This is not a top-end Fluke multimeter by any means, but it exhibits the reliability and accuracy people expect of this brand nonetheless. In fact, the Fluke 323 is without any fanciness or gimmicks, focusing on just the basics. It is very easy to use and will suit general electricians in normal maintenance situations.

The main purpose of the tool as with all clamp meters is to measure current indirectly. Just bear in mind that the 323 can only measure AC current and does not have a high a rating as many others on the market. It goes up to 400A AC, which is good enough for general purpose testing.

In addition are voltage ranges, with AC and DC on separate dial positions. It can measure to 600V and is also True RMS, so you’ll get fairly accurate readings when measuring AC variable drive outputs – which may often have distorted (or dirty) waveforms.

There is also a resistance range that is twinned with an audible continuity checker. Unfortunately resistance is only to 4kΩ. This is not ideal for troubleshooting much more than basic circuits; certainly not for complex circuitry with high value resistors.

There is no Min/Max mode or temperature input, though a display hold lets you freeze readings manually.

RANGE ACCURACY RESOLUTION
AC current (45-65Hz)400A±(2.0%+5)0.1A
AC current (65-400Hz)400A±(2.5%+5)0.1A
AC voltage600V±(1.5%+5) @ 45-400Hz0.1V
DC voltage600V±(1.0%+5)0.1V
Resistance400Ω / 4kΩ±(1.0%+5)0.1-10Ω
Input impedance10MΩ

Design

Build quality on the Fluke 323 is good, with a tough case and durable slimline jaw mechanism. One of the main attributes of this tester is its narrow design, which lets it get into tight spaces, such as in trunking and cable ducts. Jaw size allows for the passage of 30mm conductors. Changing the battery is straightforward, with an easily removed rear cover.

Display: The 4000-count screen can display 399.9V. Refresh rate is okay for a clamp meter, although is not as timely as a standard multimeter, not that it needs to be. Icons are shown on the display, such as A, DC V, Ω. There is no backlight as with others of the 320 series.

Safety

The Fluke 323 has electronic input protection, and voltage category ratings are CAT-III to 600V and CAT-IV to 300V. Being a clamp meter, there is no need to worry about blowing fuses, however, as amperage is measured by induction, with no direct amperage running through the meter.

Pros and Cons

PROS

  • Measures to 400A
  • Also measures AC/DC voltage
  • Okay accuracy
  • Slim design
  • Display hold

CONS

  • Doesn’t measure DC amps
  • No backlight
  • Carry case is a bit tight

Roundup

The Fluke 323 review details a great little grab-and-go clamp multimeter. If you need to measure high DC amps, look to the 325 which is also in this series. With the 325 you can measure frequency and capacitance as well, plus it has a temperature range, Min/Max mode and a backlit display.

Other alternatives: Amprobe also makes a range of dependable AC/DC amp clamp multimeters, while the iFlex current loop is an option if you have a compatible meter.

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