Emerson UVU-140A-AR user manual Applications, Response Time

Page 7

1A @ 30Vdc 0.5A @ 125Vac

<Response Time:

Response to a saturating (high intensity) UV source is typically 10 milliseconds Alarm response time is programmable

<Time Delay Settings:

DIP switch selectable 3, 4, 5 or 7 seconds

<Sensitivity Settings:

DIP switch selectable 8, 16, 24 or 32 counts per second

<Humidity Range:

0 to 100% relative humidity

Applications

The UVU-140-A & UVU-140-AR fire detectors respond instantly to ultraviolet radiation emitted by a flame. These devices are designed for use in hazardous locations and are suitable for use in outdoor applications.

Typical applications for UV detection systems

<around highly combustible materials

<when instantaneous response to flame is needed or where automated fire protection is required

<protection of large capital investments

Petroleum Products Handling

<petroleum loading terminals

<offshore platforms

<pipeline stations

<tank farms

<refineries

<engine rooms

Gaseous Fuel Handling

<butane and propane loading and storage

<pipeline compressor stations

<gas gathering facilities

<LNG loading, transfer and storage

<hydrogen

<gas turbines

Other Processes

<paint spray booths

<chemical and petrochemical production

<powder coating booths

Automated fire protection systems also have applications in any manufacturing or research facility where the potential of fire may be low to moderate, but the losses due to a fire would be high.

3

Image 7
Contents UVU-140A and UVU-140-AR Unitized Ultraviolet Fire Detector Page Table of Contents Page Spectral Sensitivity Range FeaturesTechnical Information IntroductionOperating Voltage Range 24Vdc nominal 10.5 to 32Vdc SpecificationsResponse Time ApplicationsWhat’s in the package InstallationMounting the Detector Position and Density of Detectors False AlarmsDetector with Swivel Mount Swivel Mount General Wiring Requirements Wiring Diagram for UVU-140-A If the 4-20 mA signal is Coil and Relay Settings Detector SettingsSystem Sensitivity Automatic vi Test Start up ProcedureCheck Out Procedure Start UP and TestManual vi Test Procedure Manual Check ProcedureTest Procedures Current & Relay Output Conditions Normal OperationNormal Operation Fire ConditionCleaning Viewing Window and Reflector MaintenanceRoutine Maintenance TroubleshootingDevice Repair and Return B lis h ed in Accordance with E1A standard Appendix B Common Ultra-Violet Absorbing Gases Appendix C Wire Resistance In Ohms