Fluke 373 True-RMS AC Clamp Meter Fluke 373
FLUKE 373 - spec sheet
Includes
- Five AA Alkaline batteries
- Safety information sheet
- TL75 test leads
- Coated instruction card
- Soft carrying case
Key Features
- Measures resistance to 6000 Ω with continuity detection
- Measures AC and DC voltage to 600 V
- Offers state of the art signal processing to provide stable readings even in noisy electrical environments
- A top performing True-RMS current clamp for AC-only current measurements to 600 A
Product Overview
- To make it even easier to use, the large, easy-to-read backlit display provides better visibility in dimly lit conditions. And the 373 automatically sets the correct measurement range based on the voltage present when you power up, so you do not need to move the switch while taking a measurement. When you put it all together, you’ll find the Fluke 373 offers everything you need, plus a little more.
- Other useful capabilities:
- Fluke 373 True RMS AC Clamp Meter does the job for any AC-only current measurement application
- Fluke 373 True-RMS AC Clamp Meter is a great choice for AC-only current measurement situations. Featuring True RMS AC voltage and current measurements you can measure AC current to 600 A and AC voltage to 600V. The 373 also measures DC voltage to 600 V and resistance to 6000 Ω.
Other Useful Features
- Presents readings on a large, easy-to-read backlit display
- Runs on two AA alkaline batteries
- Provides True-RMS voltage and current measurements to accurately measure non-linear signals
- Automatically selects a measurement range based on voltage present so you don’t need to change the switch positions while taking a measurement
- Comes with a soft carrying case and three-year warranty
- Features CAT IV 300 V, CAT III 600 V safety ratings
FLUKE 373 - spec sheet
Manufacturer Resources
Product Specs
- Accuracy:
- 2 % ± 5 digits (48 – 62 Hz)
- Batteries:
- 2 AA, NEDA 15A, IEC LR6
- Continuity Beeper:
- 30 Ω
- Crest Factor 50 60 Hz :
- 2.5 @ 600 A
- Emi Emc:
- Meets all applicable requirements in EN61326-1:2006
- Operating Altitude:
- 3000 meters
- Operating Temperature:
- -10 °C to +50 °C
- Product Weight:
- 370 g
- Range:
- 600.0 Ω/6000 Ω
- Resolution:
- 0.1 μF/1 μF
- Size L X W X H :
- 232 mm x 85 mm x 45 mm
- Storage Altitude:
- 12,000 meters
- Storage Temp:
- -40 °C to +60 °C
- Temperature Coefficients:
- Add 0.1 x specified accuracy for each degree C above 28 °C or below 18 °C
Fluke FLUKE 373 – Frequently Asked Questions
1) Can the Fluke 373 clamp meter measure DC current?
No. The 373 is an AC-only current clamp, rated to 600 A AC. It does read DC voltage to 600 V and AC voltage to 600 V, but if you need DC amps on a battery bank, solar string, or DC drive, this is the wrong tool and you want a clamp with DC current capability.
2) Is the Fluke 373 rated for panel work at 480 V three phase?
Yes. It carries CAT IV 300 V and CAT III 600 V safety ratings, which covers distribution panel and branch circuit work at 480 V, and its AC voltage range runs to 600 V. Working at the service entrance above 300 V is outside the CAT IV rating.
3) Will a Fluke 373 give accurate readings on VFD and other non-linear loads?
That is what the True-RMS measurement is for. Distorted waveforms from drives, electronic ballasts, and switching supplies read high or low on an averaging meter; the 373 measures true RMS on both current and voltage, with signal processing meant to hold a stable reading in electrically noisy environments. Current accuracy is 2 percent plus 5 digits from 48 to 62 Hz, and crest factor handling is 2.5 at 600 A.
4) Can I use the Fluke 373 to ring out circuits and check for continuity?
Yes. It measures resistance to 6000 ohms across 600.0 and 6000 ohm ranges, and the continuity beeper sounds at 30 ohms, so it will chirp on a good conductor and stay quiet on an open. Useful for tracing conductors, checking contactor coils, and confirming a connection before energizing.
5) What comes in the box with the Fluke 373 clamp meter?
The 373 ships with TL75 test leads, a soft carrying case, AA alkaline batteries, a coated instruction card, and a safety information sheet. No separate current probe is needed for AC amps, the jaw does that. If you need temperature or a flexible jaw for tight busbar work, those are separate accessories.
6) Will the Fluke 373 hold up on a rooftop unit in summer or an unheated plant in winter?
Operating range is -10 C to +50 C (14 F to 122 F), so rooftop HVAC work and cold mechanical rooms are within spec. Above 28 C or below 18 C, add 0.1 times the specified accuracy per degree C. Storage runs -40 C to +60 C, fine for a van overnight. Operating altitude is 3000 meters, storage to 12,000 meters.
7) Do I have to switch ranges while taking a reading with the Fluke 373?
No. The 373 sets the correct measurement range automatically based on the voltage present when you power it up, so you are not fumbling at the dial with one hand in a live panel. The backlit display handles dim mechanical rooms and crawl spaces.
8) What batteries does the Fluke 373 take?
Two AA cells, NEDA 15A / IEC LR6, so standard alkaline AAs off the shelf. Worth stocking a spare pair in the truck since there is no rechargeable pack to manage.
9) What is the manufacturer part number for the Fluke 373 clamp meter?
Fluke catalogs it as FLUKE 373, the True-RMS AC Clamp Meter. That single designation covers the meter as supplied with TL75 leads and soft case.
10) Is the Fluke 373 okay to use around sensitive electronics and control panels?
It meets all applicable requirements in EN61326-1:2006 for electromagnetic compatibility, so it is built to work near, and without upsetting, other equipment in a control environment.
How fast can I get the Fluke FLUKE 373 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Fluke FLUKE 373 come with a warranty?
Absolutely. The Fluke FLUKE 373 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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