Description

Model 471B Thermo-Anemometer Test Instrument

Measures Air Velocity or Air Volume and Temperature Simultaneously

 

DWYER 471B Thermo-Anemometer Test Instrument is a versatile dual function unit. The DWYER 471B Thermo-Anemometer Test Instrument quickly and easily measures air velocity or volumetric flow as well as air temperature in imperial or metric units. A stainless steel probe is included, which has a comfortable hand grip and etched insertion depth marks. The extruded aluminum housing fully protects electronics, yet is lightweight and comfortable to hold.

 

Product Applications

• Duct traverses
• HVAC inspections
• Testing and balancing

 

Features

• Compatible with Dwyer RP1 thermo-hygrometer and VP1 100 mm vane thermo-anemometer probes (sold separately)
• Visible in any condition due to high contrast and backlit LCD display
• Able to store up to 99 readings
• Probe sensors are protected by the integral sliding cover
• Built-in volumetric air flow calculations

 

Specifications

• Service: Air velocity and temperature of clean, dry air.
• Temperature Limits: Process Air Velocity: -20 to 212°F (-29 to 100°C); Process Temperature: -40 to 212°F (-40 to 100°C); Ambient: 5 to 125°F (-15 to 51°C).
• Display: 4.5 digit LCD.
• Resolution: 0.1%, 0.1°F/°C.
• Air Velocity Range: 45 to 6000 FPM (0.23 to 30 m/s).
• Air Velocity Accuracy: ±3% FS within temperature range of 40 to 90°F (4 to 32°C). -TAB option: ±5% of reading, not less than ±1.6 FPM (0.5 m).
• Volumetric Air Flow Range: 19,999 in selected flow units.
• Temperature Range: -40 to 212°F (-40 to 100°C).
• Temperature Accuracy: ±0.5°F (±0.28°C) from 32 to 122°F (0 to 50 °C); ±1.5°F (±0.83°C) from -40°F to 32°F (-40 to 0°C) & 122 to 212°F (50 to 100°C).
• Probe Length: 8″ (203 mm) insertion.
• Cable Length: 28″ (71 cm) retracted, 6 ft (183 cm) extended.
• Power Requirements: 9 V alkaline battery, installed non-functional, user replaceable.
• Weight: 16 oz (454 g).
• Agency Approvals: CE.

 

Models & Ordering

Model	Description
471B-1	Digital thermo-anemometer, includes 9V battery, sensing probe, wrist strap, hard carrying case & instructions

 

Accessories

	Model Number	Description
	AP1	Thermo anemometer air velocity & temperature probe with coiled cable, 8″ insertion length
	A-47X-BOOT	Rubber boot for manometers (manometer not included).
	AP1-18	Thermo anemometer air velocity & temperature probe with coiled cable, 18″ insertion length
	AP1-24	Thermo anemometer air velocity & temperature probe with coiled cable, 24″ insertion length
	AP1-36	Thermo anemometer air velocity & temperature probe with coiled cable, 36″ insertion length
	A-160-CASE	Hard plastic carrying case for pitot tubes up to 48″