High Temperature UV
Unitised Flame Detector
Features Benefits
• Operates at high temperatures • Suitable for gas turbine applications
(125°C)
• Wide field of view • Greater coverage for detecting fires
(110° Horizontal) utilising fewer detectors
• Continuous Optical Path • Checks optical path integrity and
Monitoring (COPM) detector’s electronic circuitry once
every minute
• Stainless steel construction • High level of corrosion resistance for
marine environments
• Exe wiring compartment • Ease of field wiring connection
• Fast response • 100 milliseconds for critical
applications
Description Applications
General Monitors’ Model FL3111HT is a high temperature • Gas Turbines
rated UV-only flame detector designed to detect unwanted
fires while maintaining false alarm immunity. The FL3111HT
detects in only the ultraviolet (UV) spectral range for optimized • Compressor Stations
speed of response.
The detector can withstand ambient temperatures up to 125°C • Power Generation
maximum. This is achieved by the use of a specially selected
detector and electronic components and very low power
consumption to reduce self-heating. • Generator Sets
The detector’s electronics are integral within an explosion –
proof housing, allowing detector information to be processed • Solvent Extraction
at the point of detection. The electronics are fully separated
from the Exe wire compartment, offering protection during
installation and service. The FL3111HT is available with 4-20 • Drying Processes
mA stepped output.
The COPM (Continuous Optical Path Monitoring) self test • Paint Booths
feature checks the optical path integrity (window cleanliness)
and the detector’s electronic circuitry once every minute.
System Specifications Electrical Specifications General Monitors
Wave Lengths: 185 to 260 nm Input Power: 20-36 VDC Worldwide
24 VDC @ 60 mA typ / 85 mA max.
Field of View: 110° horizontal
115° vertical Analogue
Signal: 4-20 mA (350 Ohms max.)
Sensitivity: Approved performance Fault Signal: 0 mA
specifications – 15.2 m (50 ft) COPM Fault: 2.0 ± 0.4 mA
2
distance for a 1 sq. ft. (0.092 m ) Ready Signal: 4.0 ± 0.4 mA
N-heptane fire. WARN Signal: 16.0 ± 0.4 mA
ALARM Signal: 20.0 ± 0.4 mA
Typical Response
www.generalmonitors.com
Time: <1s @ 50 ft (FL3111HT)
Selectable Lake Forest, CA
Minimum Sensor Options: Sensitivity: 100%, 75%, 50% 26776 Simpatica Circle
Response Time: <100 ms Alarm Time Delay: 2, 4, 8 or 10 Lake Forest, California 92630
seconds Tel: +1-949-581-4464
Fax: +1-949-581-1151
Classification: II 2 GD Ex de IIC T3, IP66 RFI/EMI Email: info@generalmonitors.com
Protection: Complies with EN50270, Type 2
Warranty: Two years Houston, TX
2 9776 Whithorn Drive
Approvals: ATEX and CE Marking Exe Terminal: 0.75 – 2.5 mm (12-22 AWG)
Houston, Texas 77095
Tel: +1-281-855-6000
Cable Fax: +1-281-855-3290
Requirements: 3 wire shielded cable minimum Email: gmhou@generalmonitors.com
Environmental Specifications configuration. Maximum distance
between FL3111HT and power
source or remote sensor @ 24 VDC Ireland
Operating Temperature Ballybrit Business Park
Range: -40°C to +125°C nominal (20 Ohms loop):
Galway
(-40°F to +257°F) Republic of Ireland
14 AWG – 2,250 m (7,400 ft)
Tel: +353-91-751175
Storage Temperature Fax: +353-91-751317
Range: -40°C to +125°C Maximum distance for analog output
(250 Ohms termination max): Email: info@gmil.ie
(-40°F to +257°F)
Operating Humidity 14 AWG – 2,750 m (9,000 ft) Singapore
No. 2 Kallang Pudding Road
Range: 0% to 100% RH,
Status #09-16 Mactech Building
non-condensing
Indicators: Two LED’s with status and fault cues Singapore 349307
Tel: +65-6748-3488
Pressure Range: 80 kPa (0.8 bar) to
Fault Fax: +65-6748-1911
110 kPa (1.1 bar)
Monitoring: Optics failure/blockage and low Email: genmon@gmpacifica.com.sg
supply voltage
United Arab Emirates
Standard P.O. Box 61209
Mechanical Specifications Configuration: FL3111HT-1-3-1 Jebel Ali
100% sensitivity, 4 second time delay Dubai
Housing: Stainless steel
United Arab Emirates
Tel: +971-4-8815751
Diameter: 84 mm (3.3 in)
Fax: +971-4-8817927
Email: gmme@emirates.net.ae
Length: 136 mm (5.3 in)
Specifications subject to change without notice. United Kingdom
Weight: 2.27 kg (5 lbs)
Heather Close
Cable Entries: 2 x M20 Lyme Green Business Park
Represented by: Macclesfield, Cheshire
United Kingdom, SK11 0LR
Tel: +44-1625-619583
Fax: +44-1625-619098
Email: info@generalmonitors.co.uk
Publication #: DS-FL3111HT-D0308-EU
