Ember Detection
FLADET IH-153E Infra-Red Ember Detector - NOW WITH SITE SENSITIVITY ADJUSTMENT
The IP67 rated model IH-153E Ember Detector employs Infra-red sensitive photoelectric sensors for the detection of glowing embers on applications such as COAL CONVEYORS. The unit has a narrow spectral sensitivity (3 to 5 um) making it impervious to visible light. The detector can reliably and rapidly detect weak Infra-Red radiation emissions from embers resulting from smouldering fragments of wood or coal. The sensitivity of the IH-153E, being designed and constructed specifically for the detection of glowing embers, is far superior to more "conventional" flame detectors. With Instrument air air purging at 3 to 7 bar used to keep the detector "eye" clean in polluted environments.
The IH-153E will detect 100 sq cms glowing ember at a distance of 1 to 3 metres in a 90 degree cone angle and straight line.
Connection of the IH-153E to any standard Fire Alarm Control Panel, annunciator, PLC, DCS is by way of the potential free NO/NC contacts provided. Operating Status indication of the detector is by LED's (flickering green = normal condition, static red = alarm).
Applications
- Highly recommended for use on coal conveyors to detect smouldering coal or glowing embers on a moving belt
- Any Material transportation system where glowing embers may present a risk of fires
- Environments that are unsuitable for other types of detectors to be installed and operate with a moving ember or small flame fire risk
Detector Sensitivity
- 100 sq cms at a distance of 1 to 3 metres in a 90 degree cone angle and straight line
Advantages
- Rugged construction for use in challenging environments
- High Sensitivity - even in Mist and Fog
- Easy to instal and operate
- High speed response
- Free from false alarms
- Visual operating status indication
- Low maintenance
Installation Considerations
The fladet IH-153E detector must be installed ensuring there is no obstruction in its "line of sight". Other IR radiation sources (sunlight or hot bodies) may adversely affect detector performance for conveyor applications, detector mounting should be on the hood or gantry of the conveyor structure with detector line of sight along (not across) the conveyor belt.
Note: Whilst the detector IS "Solar Blind", it should NOT be installed in locations where it is liable to direct high energy sunlight (6000C) exposure. The same considerations apply to IR / Ember detectors of any other manufacture!
Maintenance & Inspection
For maximum sensitivity, the surface of the detector tube should be kept free from dirt or other contaminants at all times. Periodic testing of the detector - using controlled embers - should be carried out. An additional provision exists for connection to a pneumatic air purging system to keep the detector surface clean.
Ordering Information
- IH-153E-FP, for direct connection to conventional fire alarm panel -1 x fire relay contact output
- IH-153E-AP, for Addressable panel/Annunciation panel/PLC/DCS connection. Detector includes 1 x NO-COM-NC FireRelay, 1x NO-COM-NC Fault Relay + 1 x NO-COM-NC Auxiliary fire relay.
Optional Accessories
- 1H-323 Air Purging Unit - stand alone version. 1 required per ember detector. 230VAC operation. Remote control operation type available
- MB-01 Tilting Mounting Base
Technical Specification
- Supply Voltage - 24VDC +/- 20%
- Sensor - IR 3000-5000 nm
- Output - 1x NO/NC potential free contacts for fire
- Quiescent Current- less than 15Ma (IH153-FP) less than 40Ma ( IH153-AP)
- Alarm Current- less than 80Ma (IH153-FP) less than 100Ma ( IH153-AP)
- Fire Indication - RED LED
- Normal Indication - Flickering GREEN LED
- Air Purging - 3 to 7 bar
- IP Rating - IP67
- External Earthing -2 nos
- Material - Cast Aluminium LM6
- Cable Entries - ET - 03
- Fasteners - SS304
- Operating Temperature - -40 to +60C
PRODUCT CONFORMS TO REQUIREMENTS OF NFPA72 AND IS-2189.
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