Dwyer Instruments SERIES WD3 Catalog Page

[50.66]

3-5/8

SERIES WD3

WATER LEAK DETECTORS

LEVEL

Battery or External Powered, SPST or DPDT Relays

WD3-BP WD3-LP Bracket

The Series WD3 Water Leak Detectors protect equipment from water damage by detecting the presence of water. Model WD3-BP-D1-A is battery powered, all others require AC or DC supply voltages.

FEATURES/BENEFITS

• Audible and visual alerts provide local indication of the alarm condition and internal switch will give remote indication or control to prevent further buildup of water

• Sensing height can be adjusted as low as 1/32˝ (0.79 mm) using the included

adjustable mounting bracket

• Mounting bracket can attach to any at surface by either using the attached adhesive

strips or mounting screws for easy installation

APPLICATIONS

• AHU drip pans

• Radiant oors

• Data centers

• Sump pumps

• Drains

MODEL CHART Model Output Power Audible Alarm WD3-BP-D1-A

WD3-LP-D2 WD3-LP-D2-A

SPST NO SSR DPDT relay DPDT relay

Battery

24 VAC (±10%) or 11 to 27 VDC 24 VAC (±10%) or 11 to 27 VDC

Yes No Yes

1-3/16 [30.12]

1-5/16

[33.15]

5/8

4-1/8

[105.23]

[16.58]

1/8

[2.50]

[91.70]

[76.68]

5/8

[16.18]

5/16

[7.52]

YEAR LIMITED

WARRANTY

BracketWD3

SPECIFICATIONS Service: Water or conductive uids.

Minimum Sensing Gap: 1/32˝. Switch Type: Battery powered model: SPST NO SSR; External powered models:

DPDT relay. Electrical Ratings: Battery powered model: Pilot duty rating 250 mA @ 24 VDC; External powered models: 1 A @ 24 VAC/DC.

Audible Alarm: At least 85 dB @ 1´ distance (depends on model). Visual Alarm: Red LED for water level; Yellow LED for low battery (battery powered

model only); Green LED for power condition (external powered models only).

Temperature Limits: 32 to 122°F (0 to 50°C). Power Requirements: Battery powered model: 3V CR2450 lithium metal battery,

installed functional, user replaceable; External powered models: 24 VAC (±10%) or 11-27 VDC. Power Consumption: Battery powered model: 0.9 mA steady state / 3.0 mA during

alarm condition; External powered models: 30 mA steady state / 85 mA during alarm condition.

Battery Life: 5 years steady state / 48 hours during alarm condition. Electrical Connections: 4.9´ (1.5 m), 22 AWG, PVC, UL plenum rated cable. Enclosure Material: ABS and polycarbonate with ammability classication UL 94

V-0. Enclosure Rating: Audible alarm models: Watertight up to 3/4 of the body height;

Non-audible alarm models: NEMA 6P (IP 68) submersible.

Weight: 4.85 oz (137.5 g). Agency Approvals: CE.

ACCESSORIES Model Description A-WD3-BRK Replacement mounting bracket