UTC Fire and Security FORNEY UniFlame User manual

UniFlame User Manual
Unitized Detector Head & Amplifier
Publication 372000-48 Rev. H

UniFlame User’s Manual
Unitized Flame Detector and Amplifier
Infrared, Ultraviolet, and Multi-spectral Models
Publication 372000-48 Rev H
NOTICE: The equipment described in this manual was manufactured and sold under a contract containing
limitations of manufacturer's liability for negligence and disclaimers of certain warranties. Installation or use of the
equipment described in this manual constitutes an acceptance by the installer and user of those limitations and
disclaimers. Copies of the contract may be obtained through any office of the manufacturer.
Copyright©2009 Forney Corporation

INTRODUCTION
This manual contains information for the UNIFLAME Flame Detector / Amplifier, provided by Forney
Corporation, 3405 Wiley Post Road, Carrollton, Texas.
All personnel should become thoroughly familiar with the contents of this manual before attempting to
operate or maintain the system. Because it is virtually impossible to cover every situation that might occur
during operation and maintenance of the equipment described in this publication, personnel are expected
to use good engineering judgement when confronted with situations that are not specifically mentioned
herein.
The user should review this manual whenever significant changes are made to the system. To be of value,
the manual must always reflect the latest configuration of the equipment. It should be noted, however,
that Forney Corporation will furnish updated pages only if a modification is authorized by Forney and
accomplished under Forney supervision.
PROPRIETARY NOTICE
The contents of this publication are proprietary data of Forney Corporation. Reproduction or use of any
part of the publication for purposes other than the support of the equipment for which it is published is
permissible only if expressly authorized in writing by Forney.
The original source of this publication is Forney Corporation. Forney Corporation can not accept
responsibility for the accuracy of any modifications made to this document subsequent to its issuance,
except in the case where such modifications were made with the express written approval of Forney
Corporation. All subsequent users of this publication should contact Forney Corporation to confirm the
original contents of this publication.
Additional copies of this publication may be obtained from Forney. When ordering or requesting cost
information, refer to the publication number appearing on the title page. Address to the attention of the
Sales Department, Forney Corporation, 3405 Wiley Post Road, Carrollton, Texas 75006-5185.
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Forney Corporation
UNIFLAME User’s Manual Publication 372000-48 Rev H
TABLE OF CONTENTS
SECTION 1 Description...............................................................................................................................1
1.1 Operation........................................................................................................................................1
1.2 Application.....................................................................................................................................2
1.3 Accessories.....................................................................................................................................2
1.4 Features ..........................................................................................................................................3
Table 1-1 Agency Approvals..........................................................................................................................4
1.5 Dimensions.....................................................................................................................................5
1.6 Specifications .................................................................................................................................5
SECTION 2 Installation Notes .....................................................................................................................6
SECTION 3 Detector Wiring........................................................................................................................8
3.1 Grounding and Shielding Techniques ............................................................................................9
3.2 Quick Disconnect Layout.............................................................................................................10
3.3 Wiring Harness Assembly Layout................................................................................................11
SECTION 4 Remote Communications.......................................................................................................12
4.1 Remote File Selection...................................................................................................................13
SECTION 5 Programming UNIFLAME Series Detectors.........................................................................14
5.1 Keypad/Display............................................................................................................................14
5.2 UNIFLAME Menu Structure .......................................................................................................15
5.2.1 STATUS LOOP...................................................................................................................................15
5.2.1.1 Status Points Defined.......................................................................................................................16
5.2.2 SETPOINT LOOP...............................................................................................................................18
5.2.2.1 AUTOTUNE Mode .........................................................................................................................18
5.2.2.1.1 AUTOTUNE Setpoints Defined...............................................................................................19
5.2.2.2 EDIT Mode......................................................................................................................................20
5.2.2.2.1 EDIT Mode Setpoints Defined..................................................................................................21
SECTION 6 Self-Diagnostics.....................................................................................................................24
SECTION 7 Storage ...................................................................................................................................25
SECTION 8 Warranty.................................................................................................................................25
SECTION 9 Return or Repair Service........................................................................................................25
SECTION 10 Spare Parts............................................................................................................................26
Table 2. Recommended Spare Parts List.............................................................................................................26
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Forney Corporation
UNIFLAME User’s Manual Publication 372000-48 Rev H
SECTION 1 DESCRIPTION
Forney’s UNIFLAME Series flame detectors utilize micro-processor based technology combined with solid
state infrared (IR), ultraviolet (UV), or dual (IR and UV) sensors. An adjustable flame relay resides in the
body of the UNIFLAME Series flame detector, eliminating the need for a remote amplifier. The
UNIFLAME Series flame detectors work on an amplitude and frequency (flame flicker) principle. The
appropriate flicker frequency and amplitude gain is automatically configured in the AUTOTUNE mode or
can be manually selected via the EDIT mode. Other features of the UNIFLAME Series flame detectors
include automatic or manual adjustment of the flame relay ON and OFF Thresholds, 4-20 mA output, SPST
flame relay, SPST fault relay, four remotely selectable program files, plus remote RS485 communications
via Forney’s Windows 95/98/NT based user software. All UNIFLAME detector models are powered by 24
Vdc, have a 12 pin electrical quick disconnect, contain electronic self-checking (no mechanical shutter) and
are fully self diagnostic. The detectors contain an eight-character alpha-numeric LED display and a four (4)
push-button keypad to enable the user to view operating parameters and configure setpoints.
1.1 OPERATION
The UNIFLAME Series flame detectors measure the amplitude of the modulating radiation that occurs
within the targeted flame. During the detector set-up procedure, the modulation frequency that yields the
best on and off discrimination is selected. The appropriate modulation frequency and sensor gain is either
automatically selected or can be manually tuned. With the appropriate modulation frequency selected, the
flame relay’s ON and OFF Thresholds are automatically configured in the AUTOTUNE mode or can be
manually adjusted in the EDIT mode. The detector’s 4-20 mA Flame Quality output is at a minimum (4
mA) with a Flame Quality of “0”, and at a maximum (20 mA) at a Flame Quality of “100”.
The FLAME RELAY is energized (and its normally open contacts close) when the Signal Strength is at
or above the programmed ON Threshold after the On Time Delay expires (OTD). The flame relay is de-
energized when the Signal Strength is at or below the programmed OFF Threshold after the Flame Fail
Response Time (FFRT) expires. The flame relay contact circuit will also open upon a power interruption
or the detection of an internal fault.
The FAULT RELAY employs a de-energize to trip philosophy, in that the relay is energized when 24
Vdc is applied to the detector and when the detector successfully passed all internal self-checking
routines. The fault relay is de-energized if there is a power interruption to the detector or if the detector
has detected an internal fault (see Self Diagnostics Section 6). Internally, a normally open fault relay
contact is wired in series with the flame relay contact.
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Forney Corporation
UNIFLAME User’s Manual Publication 372000-48 Rev H
1.2 APPLICATION
The InfraRed Model (P/N 401111-01) contains an infrared flame sensor, responding to wavelengths in
the infrared range from 700 nm to 1700 nm. This sensor is best suited for all oil and coal fired
applications.
The UltraViolet Model (P/N 401112-01) contains an ultraviolet flame sensor, responding to wavelengths
in the ultraviolet range from 295 nm to 335 nm. This sensor is best suited for gas and light oil
applications.
The MultiSpectral Model (P/N 401113-01) contains an infrared sensor as well as an ultraviolet sensor.
Each respective sensor responds to wavelengths in the infrared range from 700 nm to 1700 nm and to
wavelengths in the ultraviolet range from 295 nm to 335 nm.
Valve & Wye
P/N 354943-01 Mounting flange P/N 91147-23 Uniflame Detector
IR Model P/N 401111-01
UV Model P/N 401112-01
IR/UV Model P/N 401113-01
(
fiber o
p
tic not available
)
To BMS & 24VDC
Power Supply
RS 485/232
Converter
P/N 78195-84
DPD & UniFlame
Software, Windows based
P/N 404000-01
Wiring harness 12 conductor
10’ P/N 401110-02
20’ P/N 401110-04
30’ P/N 401110-05
Belden Communication
Wire
P/N 76097-00
To Next
Detector
- - OR - -
Prefab cable 12 conductor
10’ P/N 405842-01
20’ P/N 405842-02
40’ P/N 405842-04
Inner & Outer
Carrier Assembly
Front Mount
- - OR - -
Fiber O
p
tic
Swivel
P/N 91016-63
Figure 1 – Application Drawing
1.3 ACCESSORIES
Description Part Number
12 Cond. Detector cable with factory installed female connector 405842-XX
Wiring harness assembly 401110-XX
10 Cond. Detector cable 91042-59
Swivel Mount 91016-63
Valve and Wye Assembly 352750-01
Power Supply (100VA) 79508-51
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Forney Corporation
UNIFLAME User’s Manual Publication 372000-48 Rev H
1.4 FEATURES
Features InfraRed
Model
UltraViolet
Model
MultiSpectral
Model
Infrared Sensor √√
Ultraviolet Sensor √√
Flame Relay √√√
Fault Relay √√√
4-20 mA output √√√
Gain Adjust √√√
Frequency Selections √√√
Multiple Memory Files √√√
Remote Communications √√√
AUTOTUNE √√√
Manual Tune √√√
Local Display √√√
Local Flame Sighting Indicator √√√
Self Diagnostics √√√
Self Check (electronic) √√√
1 Sensor Signal Contribution √√√
2 Sensor Signal Contribution √
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Forney Corporation
UNIFLAME User’s Manual Publication 372000-48 Rev G
Table 1-1 Agency Approvals
PART SENSOR FEATURES FIBER 12-PIN 10 FT (3M) MAXIMUM HOUSING RATING AGENCY APPROVALS
NUMBER OPTIC
MOUNT
CONNECTOR CABLE &
GLAND
CONTACT
RATING
UL
C/US
FM DIN-
DVGW
CE
401101-01
401102-01
401103-01
--------------
401111-01
401112-01
401113-01
IR
UV
IR & UV
----------
IR
UV
IR & UV
Basic
-----------------
Expanded
No Yes No 240 VAC NEMA 4X IP66
CLASS I DIV 2
GROUPS A, B, C, & D
CLASS II DIV 2
GROUPS F & G
Yes Yes No No
401101-03
401102-03
401103-03
---------------
401111-03
401112-03
401113-03
IR
UV
IR & UV
----------
IR
UV
IR & UV
Basic
-----------------
Expanded
No No Yes 240 VAC NEMA 4X IP66
CLASS I DIV 2
GROUPS A, B, C, & D
CLASS II DIV 2
GROUPS F & G
Yes Yes No No
401101-02
401102-02
401103-02
---------------
401111-02
401112-02
401113-02
IR
UV
IR & UV
----------
IR
UV
IR & UV
Basic
-----------------
Expanded
No Yes No 50 VAC NEMA 4X IP66 No Yes Yes Yes
401101-04
401102-04
401103-04
--------------
401111-04
401112-04
401113-04
IR
UV
IR & UV
----------
IR
UV
IR & UV
Basic
-----------------
Expanded
No No Yes 240 VAC NEMA 4X IP66 Yes No Yes Yes
401105-01
401106-01
401107-01
----------------
401121-02
401122-02
401123-02
IR
UV
IR & UV
----------
IR
UV
IR & UV
Basic
-----------------
Expanded
No No (two
internal 8-pole
terminal
blocks)
No 240 VAC IP66
CENELEC
EEXD IIC T6
No No No
(see note) No
401115-01
401115-03 UV Expanded Yes Yes No No Yes 240 VAC NEMA 4X IP66 CLASS I DIV 2
GROUPS A, B, C, D
CLASS II DIV 2
GROUPS F&G
Yes Yes No No
401115-02
401115-04 UV Expanded Yes Yes No No Yes 50 VAC 240 VAC NEMA 4X IP66 No Yes Yes Yes
401123-04 IR & UV Expanded No No No 240 VAC NEMA 4X IP66
EEXD IIC T6 No No Yes Yes
NOTE: The housing into which the CEX UNIFLAME electronics are installed has been approved by CENELEC and ATEX for use in EExd IIC T6 hazardous
areas.
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Forney Corporation
UNIFLAME User’s Manual Publication 372000-48 Rev H
1.5 DIMENSIONS
Housing Material: Die Cast Aluminum.
Finish: Silver Polyester Powder Coat
Figure 2 – Dimensions
1.6 SPECIFICATIONS
Agency Approvals: See Table 1-1
MECHANICAL:
Housing Material: Die-cast Aluminum with Silver Polyester Powder Coat Finish
Housing Weight: 3.8 lbs (1.73 kg)
Environmental: NEMA 4X, IP66
Mounting: 1” NPT female pipe mount secured with locking collar
Cooling/Purge Air Requirements:
Source: Clean, dry, cool
Volume: Refer to submittal drawings.
Pressure: 6” w.c. (4.95 mbar) above furnace pressure
Temperature Rating: -40°F to +150°F (-40°C to +65°C)
Humidity: 0% to 95% relative humidity, non-condensing
ELECTRICAL:
Input Power: 24 Vdc, +10%, -15%
Supply current: 0.35 A
Electrical Connection: 12-pin, quarter-turn quick-disconnect
Relay Output: Flame Relay, SPST (N.O. contacts)
Fault Relay, SPST (N.C. contacts)
Contact Rating:
Minimum: 10 mA @ 5 Vdc
Maximum: 2 A @ 240 Vac (resistive)
2 A @ 30 Vdc (resistive)
Analog Output: 4-20 mA dc current, referenced to 24 Vdc, max. connected load
is 750 ohms.
Status Indication: Eight (8) character, alpha numeric LED
Display (scrolling capability)
Operator Interface: Four (4) pushbutton style keys
Cable Specification: Multi-core, 12 conductor (color coded), with overall braided
shield. Six #18 AWG and four #22 AWG conductors, plus one
#22 AWG twisted conductor pair.
Cable Jacket: Irradiated Modified Polyolefin outer jacket (flame
retardant, low smoke, zero halogen).
Nominal O.D.: 0.45” (11.4 mm); Max O.D.: 0.47” (11.9 mm)
Max cable length: 1000 feet (305 meters)
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Forney Corporation
UNIFLAME User’s Manual Publication 372000-48 Rev H
SECTION 2 INSTALLATION NOTES
The detector should be mounted so that the primary combustion zone is within the detector’s line of sight.
The primary combustion zone from a flame emits the majority of the frequency spectrum used by the
detector to determine the presence or absence of the flame. The location and procedure listed below are
general guidelines for the location of the detector if Forney’s Burner Redline Review service is not
utilized.
1. The best results are obtained when the detector is aimed so that the detector’s line of sight intersects
the burner center at a slight angle (e.g. 5 degrees) and sees a maximum of the primary combustion
zone as shown in Figure 3.
Figure 3 - Line of Sight Installation
2. The detector should have an unrestricted view of the flame as far as possible. Physical obstructions
such as air register blades, spin vanes, or other hardware should not fall within the detector’s line of
sight as shown in Figure 4.
Figure 4 – Flame View
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Forney Corporation
UNIFLAME User’s Manual Publication 372000-48 Rev H
3. Consideration must be given to burner secondary air rotation, some burners have clockwise (CW) air
rotation and others have counter clockwise (CCW) air rotation. If combustion air enters the furnace
with a rotational movement of sufficient velocity to deflect the igniter flame in the direction of
rotation, position the detector 10 to 30 degrees downstream of the igniter as shown in Figure 5 and
close to the periphery of the burner throat. On opposed fired burners, avoid sighting main flame
detector with igniter on opposite wall, i.e., 3 o’clock igniter with 9 o’clock main flame detector and
mirror-image burner on the opposite wall.
Figure 5 – Air Rotation
4. A minimum sight tube diameter of 2 inches is desired for optimal view of a flame through a 4-foot
windbox. Use no more than one foot of one-inch diameter sight pipe. Increase the sight pipe diameter
one inch for every additional 2 feet of sight pipe length used to avoid restricting the detector’s field of
view.
5. For ease of use, the detector should be installed on a sight pipe, so the LED display can easily be read.
Please note that the operation of the LED display is independent of position.
6. The detector lens must be kept free of contaminants (oil, ash, soot, dirt) and the detector housing
temperature must not exceed its maximum rating of 150°F (65°C). Minimum cooling air requirements
for each detector are listed on the project submittal drawings. If cooling air is not available from the
plant, Forney’s dual blower assembly with automatic failover logic can be offered.
7. Please note, the real time internal detector temperature and maximum recorded temperature is
available via the LED display.
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Forney Corporation
UNIFLAME User’s Manual Publication 372000-48 Rev H
SECTION 3 DETECTOR WIRING
All wiring to the detector should be rated at 90°C. For runs less than 1000 feet, the use of Forney detector
cable P/N 405842-XX is recommended. For runs in excess of 1000 feet, please consult the factory. To
reduce the electrical noise interference, the detector cable should be installed in rigid or flexible conduit.
Take precautions to keep the detector cable away from any high inductive wiring associated with high
inductive loads or high voltage / high energy spark ignition systems.
Because the UNIFLAME Series flame detectors require 24 Vdc power for operation, connection of a 24
Vac, 120 Vac, or 220 Vac power source will damage the detector. Therefore, external 2.0 Amp fuses are
recommended to protect the processor flame relay and the fault relay contacts. See Figure 6.
Figure 6 - Cable Connection
Notes:
1. Flame relay contacts are shown in the de-energized (no flame) condition.
2. Fault relay contacts are shown in the de-energized (fault) condition.
3. Brown and orange wires are a twisted pair.
4. Cable shield not shown.
5. With Remote File Select programmed as “LINE”, external switches SW1/SW2 (not furnished) will
select between four internal memory files, when connected to 24 Vdc (-) supply (see Section 4.1).
6. External 2.0 Amp fuses recommended.
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Forney Corporation
UNIFLAME User’s Manual Publication 372000-48 Rev H
3.1 GROUNDING AND SHIELDING TECHNIQUES
FOR USE ON DETECTORS OR DETECTOR CABLE LOCATED WITHIN 12 INCHES OF A HIGH
ENERGY OR HIGH VOLTAGE SOURCE.
1. The detector and cable (preferably in flexible conduit) must be located at least 12 inches from the
ignition source.
2. Run a ground wire from the ignition transformer chassis to the igniter assembly.
3. Replace all frayed, cracked, or dirty/oily ignition wires. Ignition wire must be in good working
condition.
4. Electrically isolate the detector from the burner using the surface mounting flange provided.
5. Attach drain wire of the detector cable to earth ground of power supply.
6. For remote communications less than 200 feet, connect drain wire of the communication cable to
earth ground of power supply.
Figure 7 – Connection for Less Than 200 Feet
7. For remote communications greater than 200 feet, connect drain wire of the communication cable to
earth ground of the RS485 source (e.g. IBM compatible computer).
Figure 8 – Connection for Greater Than 200 Feet
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Forney Corporation
UNIFLAME User’s Manual Publication 372000-48 Rev H
3.2 QUICK DISCONNECT LAYOUT
Figure 9 – Quick Disconnect Layout
Wire Color Pin Designation Function
Black/Red A Power (+) 24 Vdc
White/Blue B Power (-) 24 Vdc
White/Black C Flame Relay (N.O. contacts)
White/Red D Flame Relay (N.O. contacts)
Red E Fault Relay (N.C. contacts)
Pink F Fault Relay (N.C. contacts)
Violet G 4-20 mA (+)
Grey/Red H 4-20 mA (-)
Blue/Red J Remote File Select 1 (RFS1)
Yellow K Remote File Select 2 (RFS2)
Brown L Communications A (COMM A)
Orange M Communications B (COMM B)
Note: Brown and orange wires are a twisted pair.
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Forney Corporation
UNIFLAME User’s Manual Publication 372000-48 Rev H
3.3 WIRING HARNESS ASSEMBLY LAYOUT
To provide a service point at the burner front or an easy method to wire the UNIFLAME Series flame
detectors in a “multi-drop” configuration for remote communications, Forney offers a wiring harness in
four different lengths (10, 15, 20, 30 Ft.). The harness has a pre-wired female quick disconnect to plug
into the male quick disconnect on the detector. The other end of the wiring harness has a NEMA 4
conduit box with a 16 point terminal strip. Twelve (12) wires are pre-wired to the female quick
disconnect. The remaining four (4) terminals are used to “daisy-chain” the remote communication wires
from one detector to another.
Figure 10 – Wiring Harness Assembly Layout
Cable Wire Color Terminal Function Termination
Black/Red 1 Power (+) 24 Vdc
White/Blue 2 Power (-) 24 Vdc
Detector White/Black 3 Flame Relay (N.O. contacts) Back to
Cable White/Red 4 Flame Relay (N.O. contacts) the Control
Red 5 Fault Relay (N.C. contacts) Room
Pink 6 Fault Relay (N.C. contacts) (To BMS)
Violet 7 4-20 mA (+)
Grey/Red 8 4-20 mA (-)
Blue/Red 9 Remote File Select 1 (RFS1)
Yellow 10 Remote File Select 2 (RFS2)
Brown 11 Communications A (COMM A)
Orange 12 Communications B (COMM B)
Belden Black 11 Communications A (COMM A) To next
Cable Clear 12 Communications B (COMM B) Detector
Belden Black 11 Communications A (COMM A) To next
Cable Clear 12 Communications B (COMM B) Detector
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Forney Corporation
UNIFLAME User’s Manual Publication 372000-48 Rev H
SECTION 4 REMOTE COMMUNICATIONS
Remote Communications with the UNIFLAME Series flame detector uses an RS485 Interface to carry
out communications with an IBM compatible PC running Forney’s SMARTDisplay Software. The wiring
configuration for remote communications is dependent on the distance between the detector and the PC.
For distances less than 200 feet, Figure 11, run the cable directly back to the burner management system.
For wiring distances greater than 200 feet, Figure 12, wire the twisted shielded pair of wires in a “multi-
drop” wiring configuration, and then use a terminating resistor at the detector located farthest from the
communication source.
The maximum distance for the communication wiring for all associated UNIFLAME Series detectors is
4,000 feet. The maximum number of detectors connected to the communication link is 32 detectors.
Exceeding this total wiring length or number of detectors may require the installation of bi-directional
repeaters or amplifiers. Consult the factory for additional details.
Figure 11 – Remote at less than 200 feet
Figure 12 – Remote at greater than 200 feet
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Forney Corporation
UNIFLAME User’s Manual Publication 372000-48 Rev H
4.1 REMOTE FILE SELECTION
The UNIFLAME Series flame detectors have more than one internal memory file. The user has the option
of storing different detector setpoints for different operating conditions (e.g. gas/oil, pilot/main, low
load/high load, etc.) in these files. Each detector has four (A, B, C, and D) programmable files. With RFS
selected as “LINE”, one or two external switches (user supplied) will select between the files when RFS1
or RFS2 wires are connected to 24 Vdc (-).
RFS1 (Blue Wire – Pin J) RFS2 (Yellow Wire – Pin K) File Selected
Open Open A
Closed Open B
Open Closed C
Closed Closed D
The user may also select RFS as “KEY” which will allow manual file selection at the detector keypad, or
select “COMM” which will allow manual selection at a remote computer running the Forney
SMARTDisplay Software.
Forney recommends the use of a shielded cable for the two Remote File Select switches or relays. The
contacts should be rated for low current operation at 3 mA dc. Relays for file switching are supplied by
others, unless specified under a Forney Corporation system’s project.
Figure 13 – Remote File Selection
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Forney Corporation
UNIFLAME User’s Manual Publication 372000-48 Rev H
SECTION 5 PROGRAMMING UNIFLAME DETECTORS
5.1 KEYPAD/DISPLAY
Figure 14 – Keypad/Display
The UNIFLAME Series detectors use an eight (8) character alphanumeric LED display and four (4) push
buttons (Figure 14) to review and program various setpoints and operating parameters. The functions of
the push buttons are:
Up
Down keys ▲▼ Use UP and DOWN keys to scroll through the
detector’s menus. When in the EDIT mode use the
UP and DOWN keys to change the selected setpoint.
Select key When in the EDIT mode, press the SELECT key to
display the stored value of the setpoint. Use the
UP/DOWN keys to change the value.
Press the SELECT key a second time, although a
setpoint has been changed, to return to the menu
without saving the setpoint (except for parameters
described in Section 5.2.2)
Program key
The PROGRAM key saves a change made to a
setpoint. Use the PROGRAM key to execute the
AUTOTUNE mode.
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Forney Corporation
UNIFLAME User’s Manual Publication 372000-48 Rev H
5.2 UNIFLAME MENU STRUCTURE
For ease of operation, the UNIFLAME Series detectors contain 2 menu loops, STATUS LOOP and
SETPOINT LOOP, that can be viewed and/or accessed via the keypad/display.
5.2.1 STATUS LOOP
The STATUS LOOP menu loop is the default loop and appears as soon as power is applied to the
detector. Use the UP and DOWN keys to scroll through the menu and view the current operating status.
No operating parameters can be changed from the STATUS LOOP. To change any setpoint, a four-digit
password must be entered prior to entering the EDIT or AUTOTUNE modes. A summary of the text
displayed in the STATUS LOOP is provided below and shown in Figure 15.
TEXT DISPLAYED DESCRIPTION POSSIBLE VALUES
FQ 0 Flame Quality (detector output) 0-100
FLAME ON Flame relay status ON, OFF
T=46C Present detector temperature -40°F to 185°F
(-40°C to 85°C)
File A Detector file in operation A, B, C, D
i0 u0 Signal Strength, IR and/or UV i = 0-999, u = 0-999
COMM 0 Communication address 0-127
SOFTWARE REV Detector software revision
MAX 56C Max stored detector temperature -40°F to 185°F
(-40°C to 85°C)
PASSWORD Entryway of password (see password defined)
EDIT* Entryway for EDIT mode (see setpoint loop)
AUTOTUNE* Entryway for AUTOTUNE mode (see setpoint loop)
Figure 15 – Status Loop
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Forney Corporation
UNIFLAME User’s Manual Publication 372000-48 Rev H
5.2.1.1 STATUS POINTS DEFINED
Flame Quality
The Flame Quality number can range from 0 to 100. The number represents the detector’s 4-20 mA
analog flame Signal Strength output in percent. The Flame Quality is the scale by which the internal
flame relay’s ON and OFF Thresholds are configured.
The Flame Quality number is determined by the input of the IR or UV sensor. In the MultiSpectral model,
the Flame Quality can also be configured to be the sum of the UV and IR sensors.
Flame ON/OFF
This item refers to the energized or de-energized status of the flame relay. “Flame ON” is displayed when
the Flame Quality rises to or above the relay “ON Threshold” configured under the EDIT mode. When
the Flame Quality drops to or below the relay “OFF Threshold”, “Flame OFF” will be displayed.
Temperature
The detector’s current internal temperature is expressed in either Fahrenheit or Centigrade depending on
how the scale was configured in the EDIT mode.
File Selected
The current running file is displayed. Choices are A, B, C, or D.
Signal Strength
The Signal Strength number represents the intensity of the “Bandpass”, as sensed by the IR and/or UV
sensor(s). The number is a function of the individual sensor’s “Gain” and “Bandpass” settings.
Comm Address
This number refers to the remote communications address of the flame detector. The address can range
from 0 to 127, as configured in the EDIT mode. No two detectors in a communication loop should have
the same address.
Software revision
This value identifies the internal software revision used.
Maximum Temperature
This value indicates the highest detector temperature recorded.
Password
A four-digit password is required to enter the EDIT and AUTOTUNE modes. If a password is not
entered, pressing the UP key will advance directly to the “Flame Quality” status point.
The entry of a valid password will cause the EDIT mode to appear the next time the UP key is pressed
and the AUTOTUNE mode to appear the second time the UP key is pressed.
The factory-installed password is 0205.
The following is a programming example using the factory password (example will not work if factory
password was previously changed):
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