WFDE [SYSTEMSENSOR]

Waterfl ow Detector; Waterfl流检测器


型号：	WFDE
厂家：	SYSTEMSENSOR ADVANCED IDEAS.
描述：	Waterfl ow Detector Waterfl流检测器
文件：	总2页 (文件大小：171K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

WFDE Series

Waterﬂow Detector

System Sensor’s WFDE series is compatible with pipe

diameters ranging from 50mm through 200mm and

can be mounted in a vertical or horizontal position.

Robust Construction. The WFDE series consists of a rugged, IP54

rated enclosure. Designed for both indoor and outdoor use, the

WFDE series operates across a wide temperature range, from 0°C to

68°C (32°F to 155°F).

Features

• Compliant with Construction Products Directive

• EC Certiﬁcate Number 0786-CPD-40151

• WFD30-2E models install in 50.8mm (2”) hole sizes

• IP54 rated enclosure

Reliable Performance. WFDE models are equipped with tamper-

resistant cover screws to prevent unauthorized entry. Inside, two sets

of SPDT (Form C) synchronized switches are enclosed in a durable

terminal block to ensure reliable performance.

• Sealed retard mechanism assures that the retard is not

contaminated by dust and dirt when the cover is removed

False Alarm Immunity. The WFDE series incorporates a

mechanical retard feature, which minimizes the risk of false alarm

due to pressure surges or air trapped in the sprinkler system. In

addition, the mechanical retard’s unique sealed design is immune

to dust and other contaminants.

• Visual switch activation permits installer to accurately set the retard

even under extremely noisy conditions

• Rugged, dual SPDT switches are enclosed in a durable terminal

block for added strength

• 100% synchronization activates both alarm panel and local bell

simultaneously

Simpliﬁed Operation. The WFDE series is designed to simplify

installation. Two conduit openings permit easy attachment to the

local alarm system. The retard mechanism and dual SPDT switches

are ﬁeld-replaceable.

Agency Listings

Scientific Services

Laboratory

VdS

TE83724

G4940006

1Z0A7.AH

afp-836

0786

Waterflow Detector Specifications

Engineering Speciﬁcations

Vane-type System Sensor WFDE series waterﬂow detectors shall be installed on system piping as designated on the drawings and/or as speciﬁed herein.

Detectors shall mount on any clear pipe span of the appropriate nominal size, either a vertical upﬂow or horizontal run, at least 15 cm (6 in.) from any

ﬁttings, which may change water direction, ﬂow rate or pipe diameter, or no closer than 61 cm (24 in.) from a valve or drain. The detector shall respond

to waterﬂow in the speciﬁed direction after a preset time delay, which is ﬁeld adjustable. The delay mechanism shall be a sealed mechanical pneumatic

unit with visual indication of actuation. The actuation mechanism shall include a polyethylene vane inserted through a hole in the pipe and connected

by a mechanical linkage to the delay mechanism. Outputs shall consist of dual SPDT switches (Form C contacts). Two conduit entrances (one of which is

a knockout type) for standard ﬁttings of commonly used electrical conduit shall be provided on the detectors. A grounding provision is provided. WFDE

waterﬂow detectors shall be approved by Factory Mutual, LPC, VdS and SSL.

Standard Speciﬁcations

Static Pressure Rating

LPC: 17.25 BAR (250 PSI)

VdS: PN16 (16 BAR, 232 PSI)

Triggering Threshold Bandwidth (Flow Rate)

Contact Ratings; Two sets of SPDT (Form C)

30–57 liters/minute

10.0 A @ 125/250 VAC

2.5 A @ 24 VDC

Conduit Entrances

Two openings 22.2mm (.875 in.) diameter. One open, one knock-out type

Operating Temperature Range

Enclosure Rating

0°C to 68°C (32°F to 155°F)

IP54

Shipping Weight

WFD20E: 1.85 kg (4.08 lb.); WFD25E: 1.85 kg (4.08 lb.); WFD30-2E: 2.05 kg (4.53 lb.);

WFD40E: 2.36 kg (5.20 lb.); WFD60E: 3.03 kg (6.68 lb.); WFD80E: 3.45 kg (7.70 lb.)

U.S. Patent Numbers

Warranty

5,213,205; 4,782,333; 3,845,259

3 Years

Compatible Pipe

WFDE Field Wiring Diagram

Nominal Pipe O.D.

(mm)

Wall Thickness

(mm)

Ref. Pipe

Size mm

(in.)

Model

LPC

VdS

LPC

3.6

4.0

4.5

5.0

6.3

VdS

NOTE: Common and B connections will

close when vane is deflected, i.e.,

when water is flowing. Dual switches

permit applications to be combined

on a single detector.

SWITCH 1

SWITCH 2

WFD20E

WFD25E

50 (2)

60.3

2.3/2.9

2.6/2.9

2.9/3.2

3.2/3.6

4.0/4.5

4.5/5.9

SWITCH SCHEMATIC

“READY” STATE

–CAUTION–

65 (2½)

76.0

76.1

ROUTE WIRING

AWAY FROM

SHARP EDGES

COM

COMPONENTS

WFD30-2E 80 (3)

88.8

88.9

T16-0010-XXX

CONTACT RATINGS

WFD40E

WFD60E

WFD80E

100 (4)

150 (6)

200 (8)

114.1

165.1

219.1

114.3

168.3

219.1

125/250 VAC

24 VDC

10 AMPS

2.5 AMPS

WFDE

Shipping Weight

To nonsilenceable

initiating zone of

listed FACP

end-of-line resistor

COM

WFD20E

WFD30-2E WFD40E

WFD60E

WFD80E

Model

WFD25E

Typical FACP Connection

1.85 kg

2.05 kg

2.36 kg

3.03 kg

3.45 kg

(4.08 lbs.)

(4.53 lbs.)

(5.20 lbs.)

(6.68 lbs.)

(7.70 lbs.)

To power source

compatible

with bell

local

bell

COM

Break wire as shown for

supervision of connection.

DO NOT allow stripped wire

leads to extend beyond

switch housing. DO NOT

loop wires.

Delay Adjustment Dial

WFDE

switch assembly

Typical Local Bell Connection

Delay

adjustment

dial

Ordering Information

Model

Pipe Size

Hole Size

WFD20E

WFD25E

WFD30-2E

WFD40E

WFD60E

WFD80E

50mm (2”)

65mm (2½”)

80mm (3”)

100mm (4”)

150mm (6”)

200mm (8”)

31.8mm (1¼”)

50.8mm (2”)

1 5

Dial setting

Dial setting equals delay in seconds. Reference only.

3825 Ohio Avenue • St. Charles, IL 60174

Phone: 800-SENSOR2 • Fax: 630-377-6495

Product speciﬁcations subject to change without notice. Visit systemsensor.com for

current product information, including the latest version of this data sheet.

A05-0243-007 • 7/06 • #1679

WFDE [SYSTEMSENSOR]

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