Omega DAFA User guide

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MODEL DAFA | AIR FLOW INDICATOR AND ALARM

BENEFITS/FEATURES

• Simple and quick installation

•Fieldtrimmablevaneincludedtoallowunittobeusedin3˝and4˝pipes

• Audible and visual alarms

• Battery-operated with up to 5 year battery life and low battery warning

APPLICATIONS

• Radon mitigation systems

• Air-ow monitoring in 3˝ and 4˝ pipes

SPECIFICATIONS

Service Clean air.

Actuation Point 15 CFM (4˝ Pipe) / 10 CFM (3˝ Pipe) on decrease in ow.

Audible Alarm At least 85 dB @ 1´ distance.

Visual Alarm Red LED for no ow alarm; Yellow LED for low battery.

Wetted Materials ABS, polycarbonate, rare earth magnet.

Power Requirements 3 V CR2450 lithium battery, included, user replaceable.

Battery Life 5 years steady state; 48 hours during alarm state.

Temperature Limits 32 to 122°F (0 to 50°C).

Mounting Orientation Vertical.

Weight 4 oz (113.4 g).

Compliance CE.

DESCRIPTION

The Model DAFA Air Flow Indicator and Alarm alerts users of low or no

air ow conditions in pipes utilizing a thin, eld trimmable vane to sense the air ow rate. An 85 dB audible buzzer alternates with a bright red LED to alert users when the air ow rate drops, indicating low or no ow in the pipe. The DAFA is battery powered to provide versatility for where it can be installed, and offers a yellow LED to indicate a low battery. This device is ideal for monitoring radon mitigation systems by detecting a loss of air ow in the pipe and providing a signal to homeowners if the fan has stopped operating.

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DIMENSIONS

5-1/8 [130.00]

1-15/32

[37.47]

3/4 [19.05]

HOW TO ORDER

Use the bold characters from the chart below to construct a product code.

3-33/64

[89.32]

2-3/32 [53.00]

DAFA-1

MODEL

DAFA-1 - Air ow alarm and indicator

ACCESSORIES

Model Description A-DAFA-VANE Replacement trimmable vane

DWYER INSTRUMENTS, LLC

Important Notice: Dwyer Instruments, LLC reserves the right to make changes to or discontinue any product or service identied in this publication without notice. Dwyer advises its customers to obtain the latest version of the relevant information to verify, before placing any orders, that the information being relied upon is current.