475-FM Series

Dwyer Handheld Digital Manometer

The Dwyer 475-FM Series Mark III handheld digital manometer is ideal for field-calibrating, monitoring, or troubleshooting HVAC systems, clean rooms, and a wide range of other low-pressure applications. This handy instrument measures positive, negative, or differential pressures of air and natural gases. The 475-FM Series is approved and intrinsically safe for hazardous locations, Class 1, Division 1, Groups A, B, C, D, and T4.

Products

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Qty	Model	Description	In Stock	List Price	Internet Price
	475-0-FM	HANDHELD DIGITAL MANOMETER 0-10.0IN WC RANGE		590.00	330.40
	475-0-FM-AV	AIR VELOCITY KIT INCLUDING 475-0-FM		1,053.00	589.68
	475-00-FM	HANDHELD DIGITAL MANOMETER 0-4.0IN WC RANGE		590.00	330.40
	475-000-FM	HANDHELD DIGITAL MANOMETER 0-1.0IN WC RANGE	INFO	786.00	440.16
	475-000-FM-AV	AIR VELOCITY KIT INCLUDING 475-000-FM		1,249.00	699.44
	475-1-FM	HANDHELD DIGITAL MANOMETER 0-19.99IN WC RANGE	INFO	590.00	330.40
	475-1-FM-AV	DIGITAL MANOMETER HANDHELD	INFO	1,053.00	589.68
	475-3-FM	DIGITAL MANOMETER HANDHELD 200 INWC	INFO	425.00	238.00
	477A-1	DIGITAL MANOMETER HANDHELD 20 INWC	INFO	918.00	514.08

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Accessories

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Features

Measures positive, negative or differential pressure

Intrinsically safe for hazardous locations

Kit includes static pressure tips, 3/16" tubing,166-6-CF pitot tube, A-397 drill bit, velocity slide chart, and case.

Specifications

Supply Voltage:9V alkaline battery

Battery: Life Up to 100 hours

Accuracy: ±0.5% FS, 60° to 78°F (15.6° to 25.6°C); ±1.5% FS from 32° to 60°F (0° to 15.6°C) and 78° to 104°F (25.6° to 40°C)

Pressure Range:

475-000-FM: 0-1.00" W.C. (0-0.249 kPa)/ 5 psig (35 kPa) maximum

475-0-FM-AV:0-10.00" W.C. (0-2.49 kPa)/5 psig (35 kPa) maximum

475-00-FM-AV:0-4.00" W.C. (0-0.995 kPa)/5 psig (35 kPa) maximum

475-0-FM:0-10.00" W.C. (0-2.49 kPa)/5 psig (35 kPa) maximum

475-1-FM:0-19.99" W.C. (0-4.97 kPa)/10 psig (69 kPa) maximum

Device Type: Service of Air and some combustible gases

Connection Type:Two barbed for use with 1/8" (3.18 mm) or 3/16" (4.76 mm) ID tubing

Display: 0.5" liquid crystal, 3-1/2 digits

Air Velocity kit:Air velocity kit includes the 475-FM Manometer, (2) A303 Static Pressure tips, (2) 9' lengths of 3/16" ID rubber tubing, (1) 166-6-CF Pitot Tube, (1) A-397 Step Drill bit, A532 Air Velocity slide chart, Instructions, and a molded plastic Carrying Case, Air velocity kit includes the 475-FM manometer, (2) static pressure tips, (2) 9' lengths of 3/16" ID rubber tubing, (1) 166-6-CF pitot tube, (1) A-397 step drill bit, air velocity slide chart, instructions, and a molded plastic carrying case

Operating Temperature:32° to 104°F (0° to 40°C)

Dimensions: 6.6″ x 2.8″ x 0.9″ (16.8 x 7.1 x 2.3 cm)

Weight:

: Unit 0.3 lb (0.14 kg)

Kit 0.6 lb (0.27 kg): Unit 0.3 lb (0.14 kg)

Kit 0.6 lb (0.27 kg):

Approvals: FM, CE

Warranty: 1 year

Certifications