Description

Model 475-1-FM-AV Air Velocity Kit, Includes Digital Manometer, Pitot Tube, Accessories

DWYER 475-1-FM-AV Air Velocity Kit Digital manometer reads from 0-20.00″ w.c. with ±0.5% F.S. accuracy and minor divisions to 0.01. Large 1/2″ LCD readout is easy to see in poorly lighted areas and has “low battery” warning. Included is a 6″ stainless steel Pitot tube with integral compression fitting to hold it securely when taking readings. Also, two static pressure tips with magnetic mounting measure pressure drop across filters, condenser coils, etc. DWYER 475-1-FM-AV Air Velocity Kit comes complete with rubber tubing, 9V battery, step drill, AV calculator slide rule, and custom fitted carrying case. An indispensable test kit for the plant engineer, industrial hygienist and HVAC technician.

Complete Kit Includes:

• Series 475 Handheld Digital Manometer (±0.5% FS accuracy and minor divisions to 0.01, large 1/2″ LCD readout is easy to see in poorly lighted areas and has “low battery” warning)
• Model 166-6-CF, 6″ SS pitot tube with integral compression fitting to hold it securely when taking readings
• Two No. A-303 Static Pressure Tips with Magnetic Mounting
• Two 4-1/2 Ft. Lengths 3/16″ I.D. Rubber Tubing
• No. A-397 Step Drill for 3/16″ – 1/2″ Holes in 1/16″ Increments
• No. A-532 AV Slide Chart
• 9 V Alkaline Battery
• Fitted Polyethylene Case

Models & Ordering

Accessories

	Model Number	Description
	A-303	Portable static pressure tip, for 3/16″ ID rubber or plastic tubing with 4″ insertion.
	A-532	Air velocity calculator slide chart.
	A-375	Compression fitting connections, 1/8″ tube to 1/8″ NPT male.
	166-6-CF	Pocket size Pitot tube, 1/8″ dia., 6″ insertion length, 3″ tip, with 1/8″ male NPT compression fitting.
	A-397	Step drill. For fast, convenient installation of pitot tubes in sheet metal ducts. No center punch needed; automatic de-burring. Drills six sizes from 3/16″-1/2″ in 1/16″ increments.
	A-463	Plastic carrying case with foam liner for 475-1-AV air velocity kit – 13-1/2″ x 10″ x 2-3/8″.
	A-402A	Carrying case for most manometers; tough, gray nylon pouch, double zippered with belt loop
	A-47X-BOOT	Rubber boot for manometers (manometer not included).
	A-472	AV Kit, less manometer