Forney D85 Flame Detector User Manual
D85 unitized flame detector
Product Overview
Features & Benefi ts
Th
e Forney D85 series is a microprocessor based fl ame detector
utilizing a solid state fl ame detection sensor. Th
e D85 incorporates an
internal fl ame relay with automatically set ON/OFF thresholds and
advanced programming features for fi ne tuning.
Forney’s D85 detects the modulation of the target fl ame’s amplitude
(fl ame “fl icker”) over a wide frequency. During the detector setup the
amplitudes of the target fl ame are automatically stored in the fl ame
detector along with optimum ON/OFF criteria. Th
e appropriate
sensor gain is also automatically selected and stored. Forney D85
detectors incorporate full self-diagnostic and electronic self-checking.
Forney D85 fl ame detectors are powered by 24Vdc with standard
analog 4-20mA fl ame signal strength output. Electrical connection
is via an 8-pin electrical quick-disconnect (QD) fi tting for standard
models. CEX models utilize internal terminal blocks.
Forney D85 fl ame detectors are available in multiple models based on
spectral range (UV or IR), hazardous area classifi cations and agency
approvals.
• Rapid installation and confi guration
with quick disconnects and fully
automated tuning.
• Advanced, programmable settings for
more demanding applications
• Expanded diagnostic analysis for
superior fl ame characterization and
troubleshooting.
• Multiple UV and IR fl ame detection
options support a wide range of
combustion processes including:
industrial burners, duct burners,
refi
nery applications, low NOx
burners, waste fuel units and
incinerators.
• Integrated sensor and electronics
eliminates need for external amplifi ers.
• Standard NEMA 4X, IP66 housing
for Class I, Div 2 environments
• Optional CEX models for ATEX Ex
II 2 G/D environments
D85 Unitized Flame Detector
Forney’s D85 series fl ame detectors
provide unparalleled ease of installation
and operation, with fully automatic
fl ame characterization and optimum
gain detection.
Forney Corporation • 3405 Wiley Post Road • Carrollton, TX 75006 • 800-356-7740 • Fax 972-458-6650 • www.forneycorp.com