Datasheet > DH500A

DH500A

更新时间： 2024-01-19 10:25:41

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描述
500 Series Intelligent Sensors with Integral Communications

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DH500A 数据手册

500 Series^™

Intelligent Sensors with

Integral Communications

A Division of Pittway

3825 Ohio Avenue, St. Charles, IL 60174

1-800-SENSOR2 (736-7672), Fax 630-377-6495

http://www.systemsensor.com

Models Available

1551B Ionization Sensor

2551HR Photoelectronic Sensor

5551B Fixed Temperature Thermal Sensor

2551THR High Resolution Photo Sensor with Thermal

5551R Rate-of-Rise/Fixed Temperature Thermal Sensor

Features

• Low standby current

• Built-in tamper-resist feature

• Sealed against dirt, insects, and back pressure

• SEMS screws for easy wiring

• Easy to use decade address switches

• Built-in type ID

• Shielded electronics

• Noise immunity provides stable communications

• Compact, stylish design

• Sensor plugs easily into base

System Sensor Intelligent Sensors offer features and

performance that surpass conventional sensors. The

sensitivity of models 1551B, 2551HR, and 2551THR can be

“set” individually in the panel software. The sensors may

be continuously monitored for changes in sensitivity and

compensate for dirt, temperature, or humidity to maintain

the set sensitivity. Model 5551R offers a rate-of-rise

temperature response while the 5551B offers a fixed

temperature response.

Specifications – 2551HR, 2551THR

Dimensions

Sensor (2551HR):

Photoelectronic

(scattering principle)

Height:

3.2″ (8.1 cm), detector in base

(add .5″ [1.27 cm] for thermal)

4.0″ (10.2 cm) installed in

B501 base

6.1″ (15.5 cm) installed in

B501B base

Thermal Sensor

(2551THR):

Smoke Detector Spacing:

Diameter:

135°F fixed temperature alarm

On smooth ceilings (as defined in NFPA 72) spacing of

30 feet (900 sq. ft.) may be used as a guide. See NFPA

72 for more details on spacing requirements.

Shipping Weight:

Temperature Range

2551HR:

9.6 ounces (272 g)

32° to 120°F (0° to 49°C)

32° to 100°F (0° to 38°C)

10% to 93% RH noncondensing

3,000 fpm

15–32 VDC peak, 6.5 mA

current for visible LEDs

latched on

2551THR:

Humidity Range:

Air Velocity Rating:

Operating Voltage:

APPROVED

MSFM

Standby Current:

230 µA

This document is not intended to be used for installation purposes.

A05-228-01

12 3 4

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