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ํด๋žจํ”„

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๋น„๋””์˜ค

์ฃผ๋ฌธํ˜• ์›จ๋น„๋‚˜

ํด๋žจํ”„ ๋ฏธํ„ฐ

๋ชจ๋“  ํด๋žจํ”„ ๋ฌธ์„œ

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Leading facility solutions firm upgrades popular instrument with Fluke Connect model

MacDonald-Miller standardized on the Fluke 902 Clamp Meter when it came out several years ago.

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ํƒœ์–‘์—ด PV ์„ค๋น„์—์„œ CAT III ์ •๊ฒฉ ๋ฏธํ„ฐ๋ฅผ ์‚ฌ์šฉํ•˜๋Š” ์ด์œ ๋Š” ๋ฌด์—‡์ž…๋‹ˆ๊นŒ?

ํƒœ์–‘๊ด‘ ์‹œ์Šคํ…œ์˜ ์„ค์น˜, ๋ชจ๋‹ˆํ„ฐ๋ง ๋ฐ ํ…Œ์ŠคํŠธ์— ํ•„์ˆ˜์ ์ธ ๋„๊ตฌ ์ค‘ ํ•˜๋‚˜๋Š” ํƒœ์–‘์—ด ์„ค๋น„๋ฅผ ํฌํ•จํ•œ CAT III ํ™˜๊ฒฝ์šฉ ์ •๊ฒฉ CAT III 1500 V/CAT IV 600 V์ธ Fluke 393 FC ํƒœ์–‘์—ด ํด๋žจํ”„ ๋ฏธํ„ฐ์ž…๋‹ˆ๋‹ค.

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HVAC ์ œ์–ด ์—…๊ณ„์— ์ƒˆ๋กœ์šด ์ง€ํ‰์„ ์—ฌ๋Š” ๋ฐ€๋ฆฌ์•”ํŽ˜์–ด ํด๋žจํ”„ ๋ฏธํ„ฐ

ํ˜„์žฅ์˜ ์ดˆ๊ธฐ ๋ณด๊ณ ์„œ์— ๋”ฐ๋ฅด๋ฉด ์ƒˆ๋กœ์šด Fluke 772 ๋ฐ 773 ๋ฐ€๋ฆฌ์•”ํŽ˜์–ด ํ”„๋กœ์„ธ์Šค ํด๋žจํ”„ ๋ฏธํ„ฐ๋Š” HVAC ์ œ์–ด ์—…๊ณ„์˜ ๊ธฐ์ˆ ์ž๋“ค์—๊ฒŒ ์ƒˆ๋กœ์šด ์ง€ํ‰์„ ์—ฌ๋Š” ๊ฒŒ์ž„ ์ฒด์ธ์ €๊ฐ€ ๋  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์ด๋Ÿฌํ•œ ๋ฏธํ„ฐ๊ฐ€ ์ œ๊ณตํ•˜๋Š” ๊ธฐ๋Šฅ ์„ธํŠธ๋ฅผ ์‚ฌ์šฉํ•˜๋ฉด ์ตœ์‹  ์ œ์–ด ์‹œ์Šคํ…œ์—์„œ ๊ฐ€์žฅ ์ผ๋ฐ˜์ ์ธ ๋ฌธ์ œ๋ฅผ ์‰ฝ๊ฒŒ ํ•ด๊ฒฐํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

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Clamp meter readings: problems and solutions

Since a small increase in current flow to a motor produces a proportionately larger amount of heat, motor amperage exceeding nameplate values should be carefully investigated as a possible cause. These overload trips, though often caused by motor loading issues, can also indicate bearing failure, insulation breakdown or voltage unbalance.

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Using accessory current clamps with Fluke Digital Multimeters

Accessory current clamps expand a multimeter's flexibility and measurement capabilities by allowing it to measure up to thousands of amps.

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Why is there an arrow on your current clamp?

Learn why on all current clamps and current clamp accessories, there is an arrow placed close to the beak or inside the beak opening.

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์‚ฌ๋ก€ ์—ฐ๊ตฌ ์ „๊ธฐ ์„ค๋น„์˜ ์•ˆ์ „ํ•œ ์ž‘๋™

์ „๊ธฐ ์„ค๋น„ ํ˜„์žฅ ์„œ๋น„์Šค ๋‹ด๋‹น์ž๊ฐ€ ์ „์›์„ ์ผœ๊ฑฐ๋‚˜ ๋Œ ๋•Œ ๋งŽ์€ ๊ฒƒ์ด ๊ฑธ๋ ค ์žˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋“ค์˜ ์•ˆ์ „๊ณผ ๊ณ ๊ฐ์˜ ์•ˆ์ „์ด ์ตœ์šฐ์„ ์ž…๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ 300,000 ๊ณ ๊ฐ ์ค‘ ํ•˜๋‚˜๋ฅผ ์œ„ํ•œ ์ „๊ธฐ ๊ณ„๋Ÿ‰๊ธฐ๋ฅผ ์ œ๊ฑฐํ•˜๊ฑฐ๋‚˜ ์„ค์น˜ํ•  ๋•Œ๋งˆ๋‹ค ์ด Electric Co.์˜ ํ˜„์žฅ ๋‹ด๋‹น์ž๊ฐ€ ๊ณ„๋Ÿ‰๊ธฐ ์†Œ์ผ“์—์„œ ์ „์••์„ ํ…Œ์ŠคํŠธํ•ฉ๋‹ˆ๋‹ค.

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๋ฃจํ”„ํƒ‘ ํƒœ์–‘๊ด‘ ๊ณ„์•ฝ์ž๊ฐ€ ๋งค๋ฒˆ ์–‘์งˆ์˜ ํŒจ๋„ ์„ค์น˜๋ฅผ ๋ณด์žฅํ•˜๋Š” ๋ฐฉ๋ฒ•

๋ฃจํ”„ํƒ‘ ํƒœ์–‘๊ด‘ ๊ณ„์•ฝ์ž๋Š” Fluke 376 True RMS ํด๋žจํ”„ ๋ฏธํ„ฐ๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ์„ค์น˜ ํ”„๋กœ์„ธ์Šค ์ „๋ฐ˜์— ๊ฑธ์ณ ํ…Œ์ŠคํŠธ๋ฅผ ์ˆ˜ํ–‰ํ•จ์œผ๋กœ์จ ์‹œ๊ฐ„์„ ์ ˆ์•ฝํ•˜๊ณ  ๊ณ ํ’ˆ์งˆ ํŒจ๋„ ์„ค์น˜๋ฅผ ๋ณด์žฅํ•ฉ๋‹ˆ๋‹ค.

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ํด๋žจํ”„ ๋ฏธํ„ฐ์™€ ๋””์ง€ํ„ธ ๋ฉ€ํ‹ฐ๋ฏธํ„ฐ ๋น„๊ต

๋””์ง€ํ„ธ ๋ฉ€ํ‹ฐ๋ฏธํ„ฐ๋Š” ๊ธฐ๋ณธ์ ์œผ๋กœ ์ „์•• ์ธก์ • ๋„๊ตฌ๋กœ์„œ ์ผ๋ถ€ ์ „๋ฅ˜ ์ธก์ • ๊ธฐ๋Šฅ์ด ์žˆ์Šต๋‹ˆ๋‹ค. ํด๋žจํ”„๋ฏธํ„ฐ๋Š” ๊ธฐ๋ณธ์ ์œผ๋กœ ์ „๋ฅ˜ ์ธก์ • ๋„๊ตฌ๋กœ์„œ ์ผ๋ถ€ ์ „์•• ์ธก์ • ๊ธฐ๋Šฅ์ด ์žˆ์Šต๋‹ˆ๋‹ค. ์ด๋“ค์€ ๋ช…๋ฐฑํžˆ ๋‹ค๋ฅธ ๊ธฐ๊ตฌ์ด๋ฉฐ, ๊ฐ๊ฐ ๊ณ ์œ ํ•œ ์žฅ์ ์„ ๊ฐ€์ง€๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.

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ํด๋žจํ”„๋ฏธํ„ฐ๋ž€?

ํด๋žจํ”„๋Š” ์ „๋ฅ˜๋ฅผ ์ธก์ •ํ•ฉ๋‹ˆ๋‹ค. ํ”„๋กœ๋ธŒ๋Š” ์ „์••์„ ์ธก์ •ํ•ฉ๋‹ˆ๋‹ค. ํžŒ์ง€ํ˜• ํด๋žจํ”„ ์ฃ ๊ฐ€ ์ „๊ธฐ ๋ฏธํ„ฐ์— ํ†ตํ•ฉ๋˜์–ด ์žˆ์–ด ๊ธฐ์ˆ ์ž๋Š” ์ „๊ธฐ ์‹œ์Šคํ…œ์˜ ์–ด๋Š ์ง€์ ์—์„œ๋“  ์™€์ด์–ด, ์ผ€์ด๋ธ” ๋˜๋Š” ๊ธฐํƒ€ ๋„์ฒด ์ฃผ์œ„์— ์ฃ (Jaw)๋ฅผ ๋ผ์šด ๋‹ค์Œ ์ „์› ๋ถ„๋ฆฌ ๋ฐ ์ฐจ๋‹จ ์—†์ด ํ•ด๋‹น ํšŒ๋กœ์˜ ์ „๋ฅ˜๋ฅผ ์ธก์ •ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

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How to measure current with a clamp accessory

How to measure current with a digital multimeter plus clamp accessory.

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ํด๋žจํ”„ ๋ฏธํ„ฐ๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ๋น ๋ฅด๊ฒŒ 3์ƒ ์ „๋ ฅ ์ธก์ •ํ•˜๋Š” ๋ฐฉ๋ฒ•

FieldSense ํด๋žจํ”„ ๋ฏธํ„ฐ๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ 3์ƒ ์ „๋ ฅ ์ธก์ • ์†๋„๋ฅผ 50% ๋†’์ผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. 3์ƒ ์ „์•• ๋ฐ ์ „๋ฅ˜๋ฅผ ๋™์‹œ์— ์ธก์ •ํ•˜๋Š” ๋ฐฉ๋ฒ•

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๋ฃจํ”„๋ฅผ ์ฐจ๋‹จํ•˜์ง€ ์•Š๊ณ  4 ~ 20mA ํ”„๋กœ์„ธ์Šค ์ œ์–ด ์‹œ์Šคํ…œ ๋ฌธ์ œ ํ•ด๊ฒฐ

Fluke 773 ๋ฐ€๋ฆฌ์•”ํŽ˜์–ด ๊ณต์ • ํด๋žจํ”„ ๋ฏธํ„ฐ๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ๋ฃจํ”„๋ฅผ ์ฐจ๋‹จํ•˜์ง€ ์•Š๊ณ  4~20mA(๋ฐ€๋ฆฌ์•”ํŽ˜์–ด) ๊ณต์ • ์ œ์–ด ์‹œ์Šคํ…œ ๋ฌธ์ œ ํ•ด๊ฒฐ

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Leakage current measurement basics

On circuits protected by GFCIs (Ground Fault Current Interrupters), leakage current can cause unnecessary and intermittent tripping. In extreme cases, it can cause a rise in voltage on accessible conductive parts.

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Fluke Connectโ„ข ์†Œํ”„ํŠธ์›จ์–ด๋ฅผ Fluke 377 FC ๋ฐ Fluke 378 FC FieldSenseโ„ข ํด๋žจํ”„ ๋ฏธํ„ฐ์™€ ํ•จ๊ป˜ ์‚ฌ์šฉํ•˜๋Š” ๋ฐฉ๋ฒ•

377 FC ๋ฐ 378 FC ํด๋žจํ”„ ๋ฏธํ„ฐ์— Fluke Connect ์†Œํ”„ํŠธ์›จ์–ด๋ฅผ ์‚ฌ์šฉํ•˜๋ฉด ๊ฒฐ๊ณผ๋ฅผ ๊ธฐ๋ก, ๋ถ„์„ ๋ฐ ๋‹ค๋ฅธ ์‚ฌ๋žŒ๊ณผ ๊ณต์œ ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์˜ˆ๋ฐฉ์  ์œ ์ง€๋ณด์ˆ˜๋ฅผ ์œ„ํ•œ ๋™ํ–ฅ ๋ฐ์ดํ„ฐ.

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378 FC ํด๋žจํ”„ ๋ฏธํ„ฐ์˜ ์ „๋ ฅ ํ’ˆ์งˆ ํ‘œ์‹œ๋“ฑ ์‚ฌ์šฉ ๋ฐฉ๋ฒ•

์‚ฐ์—… ์ „๊ธฐ ๊ธฐ์‚ฌ์šฉ ๋‹ค์šฉ๋„ Fluke 378 FC ํด๋žจํ”„ ๋ฏธํ„ฐ๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ๊ธฐ๋ณธ์ ์ธ 3์ƒ ์ „๋ ฅ ํ’ˆ์งˆ ๋ฌธ์ œ๋ฅผ ๊ฐ์ง€ํ•ฉ๋‹ˆ๋‹ค. ํ…Œ์ŠคํŠธ ๋ฆฌ๋“œ ์—†์ด ์ƒ์‚ฐ์„ฑ ๋ฐ ์•ˆ์ „์„ฑ ํ–ฅ์ƒ

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377 FC ๋ฐ 378 FC ํด๋žจํ”„ ๋ฏธํ„ฐ์˜ FieldSense ์‚ฌ์šฉ ๊ฐ€์ด๋“œ

377 FC ๋ฐ 378 FC ํด๋žจํ”„ ๋ฏธํ„ฐ๋ฅผ ์‚ฌ์šฉํ•˜๋Š” ๊ฐ€์žฅ ์ข‹์€ ๋ฐฉ๋ฒ•, FieldSense ๊ธฐ์ˆ ์˜ ์ž‘๋™ ๋ฐฉ์‹ ๋ฐ ์ผ์„  ๊ธฐ์ˆ ์ž์™€ ์ „๊ธฐ ๊ธฐ์‚ฌ์—๊ฒŒ ์ด์ƒ์ ์ธ ์‘์šฉ ๋ถ„์•ผ.