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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