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IDD-II Series Flame Detector
A UTC Fire & Security Company
Forney’s IDD-II Series Flame Detector
meets the operational flexibility
requirements of utilities through multiple
flame detecting and discriminating
capabilities.
Features & Benefits
Lead SuLfide SenSor
•
Sensitive to infrared and visible light
radiation prevalent in fuel oil, coal and
lignite flames.
dynami c fLame Sen Sing circui try
•
Senses only a dynamic flame signal,
discriminates flame from hot refractory
and other background conditions.
compac t, durabLe aSSembLy
•
e printed circuit board and sensor
are potted within a cast steel housing
providing a maintenance free product.
SimpLi fied SySte m maintenan ce
•
Quick disconnect, electrical and
mechanical connections are used for easy
replacement.
fiber opticS
•
Optional fixtures are available for fiber
optic applications.
Product Overview
Forney’s Intelligent Dynamic Detector (IDD) II Series is designed to
accurately detect and discriminate the luminous flames produced by burning oil,
coal, and lignite fuels.
e IDD-II (Filtered) flame detector is typically used for sensing heavy fuel
oil and coal flames. e IDD-IIU (Unfiltered) flame detector is typically used for
sensing light fuel oil flames. e IDD-IIL (Lignite) flame detector is specifically
designed to sense low flame frequency produced by lignite and high ash coal
flames.
e IDD-II Series is used in conjunction with Forney’s supporting amplifiers
IDD-9000, DR-6101E, RM-IDD and IDD-IIIA.
e IDD-II’s solid state circuitry amplifies a continuously changing voltage
signal transmitted from the lead sulfide sensor when flame is sensed. e signal is
then sent to the amplifier by way of a four conductor cable. e amplifier processes
the signal and provides outputs to the burner management system.
For trouble-free operation, the detector electronics are potted within the cast
factor y mutuaL ap provaL
•
Factory Mutual (FM) approval means safe
operation and lower insurance rates.
Forney Corporation • 3405 Wiley Post Road • Carrollton, TX 75006 • 800-356-7740 • Fax 972-458-6650 • www.forneycorp.com
steel housing. In addition, the amplifier also initiates a periodic, electronic self-
check of the sensor and printed circuit board to verify proper operation of the
detector assembly.
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IDD-II Series Flame Detector
Pub # 404005-05
Rev 01/2011
Products and Accessories:
IDD-II Infrared Detector Filtered (#6 Oil & Coal ) Part #38321-21
IDD-IIU Infrared Detector Unltered (#2 Oil, #6 Oil & Coal) Part #38321-22
IDD-IIL, Infrared Detector Lignite Fuel Part #38321-23
Cooling Chamber (optional) Part #381071-01
Specications:
Mounting: 1” NPT sight pipe tting
Materials: Cast Steel Housing, Potted Electronics
Electrical: Supplied by Amplier, 50 VDC and 12 VDC
Electrical Connections: MS Bayonet connector supplied with cable, 1/2” exible conduit required
Cooling Air Requirements: Front mount applications - minimum cooling air ow of 10 scfm (17 m3/hr) at a
maximum temperature of 120°F (48°C)
Fiber optic applications - minimum cooling air ow of 15 scfm (25 m3/hr) at a
maximum temperature of 120°F (48°C)
Temperature Ratings: 32°F to 140°F (0°C to 60°C)
With Cooling Chamber: For ambient temperatures of 140°F to 200°F (60°C to 93°C) the Forney Cooling
Chamber must be used.
Humidity: 0-95% relative humidity, non-condensing
Shipping Weight: 21 oz
Approvals: Factory Mutual (FM)
Sensor / Wavelength: IDD-IIU 400 - 3300nm
IDD-II 700 - 3300nm
IDD-IIL 700 - 3300nm
(The IDD-IIL detector has better ame icker frequency response at lower icker
frequency ranges of >5 to 18 Hz)
Forney Corporation • 3405 Wiley Post Road • Carrollton, TX 75006 • 800-356-7740 • Fax 972-458-6650 • www.forneycorp.com
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