Rosemount™ 975UF Ultra Fast Ultraviolet Infrared Flame Detector

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Product Description

The Rosemount 975UF Ultra Fast Ultraviolet Infrared Flame Detector can detect hydrocarbon-based fuel and gas fires, hydroxyl and hydrogen fires, as well as metal and inorganic fires. This UV/IR flame detector senses radiant energy in the short wave section of both the ultraviolet and infrared portions of the electromagnetic spectrum. The signals from both sensors are analyzed for frequency, intensity and duration. Simultaneous detection of radiant energy in both the UV and IR sensors triggers an alarm signal. The UV sensor incorporates a special logic circuit that helps prevent false alarms caused by solar radiation.

Dane techniczne

Communication Protocol: Optional HART™ communications on the 0-20 mA analog current (FSK) - used for maintenance, configuration changes and asset management, available in mA source output wiring options. RS-485 Modbus compatible communication link that can be used in computer controlled installations

Ambient Temperature: Operating & Storage: -76 °F to +185 °F (-60 °C to +85 °C)

Enclosure Rating: Stainless Steel 316L with electro polish finish
Heavy duty copper free aluminum (less than 1%), polyurethane painted

Mounting: Stainless Steel 316L with electro polish finish

Dimensions: Flame Detector 4"x 4.6"x 6.18"(101.6 x 117 x 157 mm)

Weight: Flame Detector (stainless steel 316L) 6.3 lb (2.9 kg)
Flame Detector (aluminum) 2.8 lb (1.3 kg)
Tilt mount 2.5 lb (1.1 kg)

Certifications/Approvals

ATEX and IECEx:

Ex II 2 G D
Ex db eb op is IIC T4 Gb
Ex tb op is IIIC T110 °C Db
(Ta -50°C to +85°C) IP66/68

FM/FMC

Class I, Division 1,Groups B, C, and D, T4A
Class II, III, Division 1, Groups E, F, and G, T4A
Class I, Division 2, Groups A, B, C, and D, T4
Ta = -50°C to +85°C
Type 6P, IP66/68 2 m for 45 minutes

CSA/US:

Class I, Division 1, Groups B, C, and D, T4
Class II, III, Division 1, Groups E, F, and G, T4
Class I, Division 2, Groups A, B, C, and D, T4
Ta = -50 °C to +85 °C
Type 6P; IP 66/68 2 m for 45 minutes

TR CU (EAC):

1 Ex db eb op is IIC T4 Gb X
Ex tb op is IIIC T110°C Db X
(–55°C Ta +85°C)

Performance:

EN 54-10 (VdS)
FM 3260

Reliability:

Designed to meet IEC 61508 - SIL 3 (TÜV)

Marine:

MED "Wheelmark" (DNV)

Charakterystyka

UV/IR Dual-Sensor
Three sensitivity levels, adapting to any application
High speed response time under 20 msec
Solar blind to help prevent false alarms
Automatic and manual non-radioactive UV built-in test (BIT) to assure continued reliable operation
Heated window for operation in harsh weather conditions (snow, ice, condensation)
Relays (3) for Alarm, Fault, and Auxiliary
0–20 mA (stepped)
HART™ Protocol for maintenance and asset management
High Reliability - MTBF - minimum 150,000 hours
5-Year Warranty
User programmable via HART® 7 or RS-485 Modbus®

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