System Sensor DH500ACDC specifications Accessories, RA400ZA

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Accessories

Part No.

Remote LED

RA400ZA

Piezo Alert Sounder

PA400

Replacement Filters

F36-05-00

Magnet

M02-04-00

End Plug For Sampling Tube

P48-21-00

Installation Kit (Parts bag)

A2650-01

Ionization Replacement Screen

RS14

Sensitivity Test Kit

MOD400R

Ionization Cover Removal Tool

CRT400

Remote Test Station

RTS451/RTS451KEY

Programming Specifications/Requirements For Intelligent System Control Panels

CAUTION

Models 1551 and 2551 can be used with the DH500ACDC if the following constraints are observed.

1.There may be a limit to the number of devices per zone that can have their LEDs latched on. The number of devices is determined by the control panel and its abil- ity to supply LED current. If more than the maximum number of devices is on the same loop, do NOT use the DH500ACDC for control purposes. Control for duct applications would need to come directly from the con- trol panel or by using control modules.

2.The duct control circuitry (auxiliary relay contacts and auxiliary alarm output) may change states if the sensor is tested and the LED is turned on for more than 4 sec- onds. If the LED is latched on for less than 4 seconds, the control circuitry of the DH500ACDC will NOT oper- ate.

3.The panel must not poll the same unit for more than 4 seconds continuously or the auxiliary relay and aux- iliary alarm output may switch states. After 4 seconds of continual polling of a device, the panel must wait a minimum of 100ms before polling or communicating to that same device.

4.Communications must not cease for more than 3 sec- onds without an additional clock pulse (after Pulse Width 5) to turn off the LED on the sensor.

5.To allow the auxiliary relay and auxiliary alarm output to return to a standby condition, (after being in alarm) the panel must wait a minimum of 100ms after turning off the sensor LED before communicating to that device again.

D500-07-00

10

I56-432-11R

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Contents Before Installing Power Supply Electrical Ratings For DH500ACDCGeneral Description Installation Sequence Contents Of The Duct Detector Housing KitDrill The Mounting Holes Mount Duct Housing Install The Inlet TubeInstallation for Ducts Less Than 8 Feet Wide Installation for Ducts More Than 8 Feet WideInstall the Filters Field Wiring Wiring Installation GuidelinesWiring Instructions Modification Of Inlet Sampling TubesD500-07-00 I56-432-11R MOD400R Sensitivity Test Alarm TestsPerform Detector Check Air Flow Trouble TestPeriodic Maintenance Requirements Install the CoverPerform the Final System Check Photo Units Ion UnitsAccessories RA400ZAThree-Year Limited Warranty Detector Test LOG

DH500ACDC specifications

The System Sensor DH500ACDC is a versatile and reliable heat detector that has gained a reputation for its advanced technology and robust features, making it an ideal choice for both commercial and residential fire safety applications. This heat detector is designed to enhance fire detection systems by providing accurate temperature monitoring and fast response times, thereby ensuring optimal safety for buildings and their occupants.

One of the standout features of the DH500ACDC is its dual power source capability, allowing it to operate seamlessly on both AC and DC power. This flexibility ensures that the detector continues to function efficiently even during power outages, making it an essential component of any comprehensive fire safety system. The ability to work with varied power sources maximizes its usability across different environments.

Equipped with a sophisticated thermal sensing element, the DH500ACDC is capable of detecting high temperatures or rapid rises in temperature. Its fixed temperature setting, combined with its rate of rise detection feature, enables it to quickly identify potential fire hazards. This dual mechanism significantly reduces the likelihood of false alarms while maintaining sensitivity to genuine threats.

The device is built for durability and reliability. Featuring a rugged construction, it is designed to withstand harsh environmental conditions, making it suitable for industrial settings, warehouses, and other challenging environments. Additionally, the detector's low-profile design allows for easy installation and minimal aesthetic disruption in any setting.

Another noteworthy characteristic of the DH500ACDC is its compatibility with various fire alarm control panels. This interoperability facilitates seamless integration into existing systems, enhancing overall functionality without the need for extensive modifications. This feature is particularly beneficial for organizations looking to upgrade their fire safety infrastructure.

Moreover, the DH500ACDC has undergone rigorous testing and complies with international standards, ensuring quality and performance that fire safety professionals can trust. Its comprehensive range of features, alongside its advanced technologies, make it a top choice for those seeking to enhance their fire detection capabilities.

In conclusion, the System Sensor DH500ACDC represents a significant advancement in heat detection technology. Its dual power source capability, sophisticated sensing mechanisms, rugged construction, and compatibility with fire alarm systems make it an indispensable tool in safeguarding lives and property against the dangers of fire. This detector embodies the commitment to safety that System Sensor is known for, providing peace of mind to users in various applications.
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