FlameGard 5 UV/IR Flame Detector

The Benefits of HART on Installation and Maintenance of Flame Detectors

E

VERY

L

IFE

H

AS A

P

URPOSE…

Contents

1.

2.

3.

4.

5.

6.

7.

Product Overview Principle of Operation Spectral Range for Flame Detection Field of View Detector Placement Wiring Test Lamp Check 8.

9.

Fault Conditions HART 10.

Applications 11.

Conclusion

FlameGard 5 UV/IR Flame Detector Description

 HART enabled flame detector with ultraviolet and infrared sensors

Customer Benefits

 Features wide field of view, enhanced false alarm response, COPM, and broad temperature range  Stores time-stamped records of warnings, alarms, and maintenance events   Supports HART communication Compatible with Emerson Process Management’s AMS Intelligent Device Manager  Better protection against electromagnetic emissions

Principle of Operation

Measures the radiant intensity of light and fluctuations of radiant intensity to detect a flame  Monitors spectral range in ultraviolet (185 – 260 nm) and infrared (4.35 m m)  Provides warning when both UV and IR sensors respond to a flame 30 25

Analog

20

Output

15

(mA)

10 5 0 UV IR UV and IR

Spectral Range

Field of View

Detector Placement

As with other flame detectors, allocation of the FlameGard 5 UV/IR should be considered carefully:  Place detector so field of view covers areas where fires may occur 1  Locate detectors at the corners of an area or module 1  Employ CAD tools to optimize area coverage at the design stage 1  Install detectors on the perimeter of equipment under detection, with unobstructed lines of sight and on rigid mounting points 2  Determine maximum distance from detector to item or area to be covered after considering fire size, fuel type, and desensitizing effects from environmental conditions 3 1 2 3 HSE Hazardous Installations Directorate, Offshore Division, “Fire and Explosion Strategy, Issue 1.” “HSSE Fire Protection Design Philosophy,” British Petroleum, Document No. OCC-IPMT-PR-HSSE-00004, Rev 0.

“Guidance and Practice for Fire and Gas Detection,” British Petroleum, GP 30-85, 29 January 2003.

Wiring

5 6 7 8 9 10 No 1 2 3 4 TB1 Function DATA+ DATA RESET ALMTEST 0-20mA DATA2+ DATA2 +24VDC +24VDC COM COM TB2 Function CHAS GND ALM C ALM 1 ALM 2 WARN C WARN 1 WARN 2 FLT C FLT 1 FLT 2 Term #

1 2 3 4 5 6 7 8 9 10

Terminal Block 2 Terminal Block 1 Term #

10 9 8 7 6 5 4 3 2 1

Test Lamp Check

Test lamp check allows independent verification of detector’s operation

Model FlameGard 5 UV/IR FlameGard 5 UV/IR-H 2 Maximum Distance to Detector (ft) 20 40

Regardless of approach used to activate test mode, each time a FlameGard 5 UV/IR successfully detects the test lamp, it records a time stamp of the event

Fault Conditions

Self-diagnostics show specific device failures

Bit Position High 8 High 7 High 4 Low 8 Low 7 Low 6 Low 5 Low 4 Low 3 Low 1 Description Reset Line Shorted UV 10 Minute Output Current Fault Flash Checksum EEPROM Checksum RAM Test Low Line Voltage Check UV COPM IR COPM Internal Voltage

HART

Configuration available with HART protocol  Provides uniform and consistent communication for all field devices  Continuous, real time diagnostic, process, and maintenance data Function Startup Fault COPM Fault Ready Signal IR UV Warn Alarm Analog Output (Standard) 0 to 0.2

0 to 0.2

2.0 ± 0.1

4.05 ± 0.05

8.0 ± 0.1

12.0 ± 0.1

16.0 ± 0.1

20.0 ± 0.1

Analog Current (mA) Modbus 0 to 0.2

0 to 0.2

2.0 ± 0.1

4.05 ± 0.05

8.0 ± 0.1

12.0 ± 0.1

16.0 ± 0.1

20.0 ± 0.1

HART (Default) 3.5 ± 0.1

3.5 ± 0.1

3.5 ± 0.1

4.05 ± 0.05

8.0 ± 0.1

12.0 ± 0.1

16.0 ± 0.1

20.0 ± 0.1

HART-modified Analog Output 1.25 ± 0.1

1.25 ± 0.1

2.0 ± 0.1

4.05 ± 0.05

8.0 ± 0.1

12.0 ± 0.1

16.0 ± 0.1

20.0 ± 0.1

Uses of HART and Modbus

Asset management and process improvement

 Check compliance to maintenance schedule  Coordinate test lamp checks to reduce labor cost  Aggregate maintenance to a control room  Read fault conditions from control room before sending technician to the field

Applications

The FlameGard 5 UV/IR is suited for a wide range of applications:        Gas Compressor Stations Pipelines Gas Turbine Power Plants Oil and Gas Terminals Refineries Oil and Gas Storage Tanks Oil and Gas Platforms

Conclusion

FlameGard 5 UV/IR Flame Detector offers significant advantages over many detection instruments

 Long detection range and wide field of view  Event logging  Digital communication (HART and Modbus)

FlameGard 5 UV/IR reduces total cost of ownership

 Enhances management of maintenance, faults, and warning and alarm records through HART & Modbus  HART reduces need for new hardwiring

Conclusion

HART and Modbus communication allow users to get the full benefit from the FlameGard 5 UV/IR Flame Detector  Real time device diagnostics enable proactive action to avoid process disruptions and unplanned shutdowns  Digital communication ensures that device information can be linked remotely to other digital networks  Advanced diagnostics help increase safety integrity levels  When connected to plant asset management software, digital communication protocols enable greater operations efficiencies