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Dwyer Series PAFS-1000 Averaging Flow Sensor

$ 7.25–$ 52.00

SKU: N/A Categories: Air Flow Sensors, Air Velocity

Description
Models
Specifications
Literature
Drawings
FAQ

Product Description

Ideal for Sensing Fan Flow Rates

The Series PAFS-1000 Averaging Flow Sensor is ideal for sensing differential pressure in the inlet section of variable air volume terminal units and fan terminal units. Units can also be used to sense differential pressure at other locations in the main or branch duct systems.

The “H” port senses total pressure and the “L” port senses static pressure. The difference between these signals is the differential, or velocity pressure. For models PAFS-1002 to PAFS-1005, up to four sensing points and lengths of 3-5/32″ to 9-29/32″ (8.02 to 25.26 cm) to accommodate box size diameters of 4″ to 16″ (10.16 to 40.64 cm) are available. For models PAFS-1006 to PAFS -1011, up to 10 sensing points and lengths from 12-1/2″ to 23-29/32″ (31.75 to 60.72 cm) are available to accommodate appropriately sized duct dimensions.

Product Applications

Zone control in HVAC systems

Models

Model	Description
PAFS-1002	Averaging flow sensor, 3-5/32″ (8.02 cm) insertion length.
PAFS-1003	Averaging flow sensor, 5-13/32″ (13.73 cm) insertion length.
PAFS-1004	Averaging flow sensor, 7-21/32″ (19.55 cm) insertion length.
PAFS-1005	Averaging flow sensor, 9-29/32″ (25.26 cm) insertion length.
PAFS-1006	Averaging flow sensor, 12-1/2″ (31.75 cm) insertion length.
PAFS-1007	Averaging flow sensor, 14-3/4″ (37.47 cm) insertion length.
PAFS-1008	Averaging flow sensor, 17-1/8″ (43.50 cm) insertion length.
PAFS-1009	Averaging flow sensor, 19-13/32″ (49.29 cm) insertion length.
PAFS-1010	Averaging flow sensor, 21-21/32″ (55.01 cm) insertion length.
PAFS-1011	Averaging flow sensor, 23-29/32″ (60.72 cm) insertion length.

Specifications

Service:: Air and compatible gases.
Wetted Materials:: ABS/polycarbonate (UL94-5V).
Temperature Limits:: Operating: 40 to 120°F (4 to 49°C); Storage: -40 to 140°F (-40 to 60°C).
Process Connection:: 1/4″ (6 mm) ID, 3/8″ (10 mm) OD tubing.
Mounting Orientation:: Integral flange with gasket.
Weight:: 1 oz (28 g).

Literature

Manuals

Instruction Manual

Catalog Pages

Series PAFS-1000 Catalog Page

Drawings

CAD Drawing in format .DWG
Adobe Reader in format .PDF

FAQ

Question

My quesiton is regarding PAFS-1000 series averaging flow sensor. Is the K factor provided in the instruction manual a direct multiplier to the velocity measured? i.e. v_actual = v_measured * K.

Answer

You are correct. V_actual = V_measured * K.

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