D85 series unitized flame detector, Mechanical specifi cations, Optical – Forney D85 Flame Detector User Manual
Page 2: Electrical specifi cations
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3.59 [91.28]
3.72 [94.49]
GROUNDING
SCREW
MOUNTING
FLANGE
(ORDERED
SEPARATELY)
DIMENSIONS IN INCHES (mm)
PURGE AIR
CONNECTION
SIGHT PIPE
CONNECTION
1.46 [36.97]
1.84 [46.79]
VIEWING
WINDOW
4.41
[112]
4.13
[105]
THREADED
1” BSP
3/4” NPT THREADED OPENING
FOR CABEL ENTRY
5.28
[134]
MOUNTING FLANGE
1” BSP
3/8” THREADED OPENING
FOR COOLING AIR
8.94 (227)
3.56 (90)
D85 Series Unitized Flame Detector
Pub # 404005-26
Rev 11/2012
Mechanical Specifi cations:
Housing Material:
Standard Models: Engineered material - GE Valox
CEX Models: Aluminum, painted fi nish
Standard Models: NEMA 4X, IP66 / Class I Div II
CEX Models: Ex II 2 G/D, ATEX certifi ed
Detector Weight:
Standard Models: 3.30 lbs (1.5kg)
CEX Models: 9.5 lbs (4.3kg)
Cooling / Purge Air
Requirements:
Source:
Clean, dry, cool
Volume: 10 SCFM (113 l/min) at 3/8” threaded mounting fl ange, or 1 inch “Y” fi tting, mounted on scanner sight pipe. Temperature near
the upper limit of the operating range and/or dirty fuels may require up to 15 SCFM (425 l/min).
Pressure: Adequate to overcome furnace or windbox pressure
Environmental:
-40° F to + 150°F (-40°C to +65°C), 0-95% relative humidity, non-condensing
Mounting
(Ordered Separately):
Standard Models: P/N 35-318-1, Standard, non-metallic, 1” NPT female pipe mount fl ange with 3/8” NPT female cooling air connection
P/N 35-318-2, Standard, non-metallic, 1” BSP female pipe mount fl ange with 3/8” BSP female cooling air connection
P/N 129-182-1, Optional, aluminum 1” NPT kit for standard models with 3/8” NPT female cooling air connection
P/N 129-182-2, Optional, aluminum 1” BSP kit for standard models with 3/8” BSP female cooling air connection
CEX Models:
P/N 129-168-1, 1” NPT female pipe mount fl ange with 3/8” NPT female cooling air connection
P/N 129-168-2, 1” BSP female pipe mount fl ange with 3/8” BSP female cooling air connection
Optical:
UV Models: 295 to 340 nanometers (K3 option 310-500 nanometers); IR Models: 830 to 1100 nanometers
Electrical Specifi cations:
Input Power:
24 Vdc, +20%, -15% supply current 200mA
Electrical Connection:
Standard Models: 8-pin quick disconnect
CEX Models: internal terminal blocks
Relay Output:
FLAME RELAY, SPST (N.O.)
FAULT RELAY, SPST (N.C.)
Contact Rating:
Minimum: 10mA @ 5 Vdc
Maximum: 2A@30 Vdc, 2A@230 Vac Resistive load
Analog Output:
Optically isolated 4-20mA dc current referenced to 24
Vdc common, maximum connected load: 750 Ohms.
Forney recommends the 60-2685-X 24 Vdc power
supply for best performance and for a SELV rating of
the 4-20mA analog output leads.
Status Indication:
Multiple LED indication for fl ame signal strength,
fl ame relay, ready, target, background select and fault
codes
Cable Specifi cation:
Quick Connect P/N 401119-xx, Bulk Cable
P/N 401119-00 Multi-core, 8 (color coded) Eight
#18 AWG with foil wrap and overall braided shield.
PLTC-ER rating.
Temperature Rating: -40°F to 221°F (-40°C to 105°C)
Cable Jacket: PVC (fl ame-retardant, low smoke, zero
halogen)
Nominal O.D. 0.44” (11.2 mm); Maximum O.D.
0.48” (12.2 mm)
__ __
Optional Filter
K3 = K3 Filter
(for UV only)
D85
Base Model
__ __
Sensor
UV
IR
__ __
Mount
FM = Front Mount
FO = Fiber Optic
__ __ __
Electrical Connection
QD = Quick Disconnect
CEX = CEX compliant
Sample Part Number: D85 UV FM QD = D85 Model with UV sensor, Front Mount and Quick Disconnect Connection.
Part Number for D85 Detector Heads
Standard Models
CEX Models
Forney Corporation • 3405 Wiley Post Road • Carrollton, TX 75006 • 800-356-7740 • Fax 972-458-6650 • www.forneycorp.com