U2-S Model Combination Viewing
Head and Signal Processor
USER MANUAL
WARNINGI
Read the instructions before use. This control shall be installed in accordance with the rules in force. Additional versions of this manual are available online at https://customer.honeywell.com/enUS/Pages/default.aspx in Canadian French, Portuguese, and German. Please enter 32-00015 in the search box and choose Technical Literature from the drop-down box.
AVERTISSEMENTNT
Lire les instructions avant l'utilisation. Cette commande doit être installée conformément aux lois en vigueur. Des versions supplémentaires de ce manuel sont disponibles enligne à https://customer.honeywell.com/enUS/Pages/default.aspx en français du Canada, en portugais et en allemand. Veuillez inscrire 32-00015 dans le casier de recherche et choisissez Documentation technique à partir du menu déroulant.
The Honeywell U2-101xS series model is a viewing head and signal processor in a single enclosure intended for use with a burner control system in Industrial Flame Monitoring applications. There are several options available (see Table 1 on page 2). Each model includes one, two, or all three sensors, and can be ordered with quick disconnect (non-PF Models DIV2,ZN2) or pigtail external connection method (PF Models DIV1,ZN1).
Each sensor operates independently from another, allowing adjustment of each sensor.
IMPORTANT
Flame monitoring systems are safety systems.
Please read this manual carefully and completely before installation and before attempting adjustments.
Only qualified personnel familiar with Flame Safety System should carry out installation and configuration.
U2 is certified to be used in prescribed manner.
Any modification or inappropriate installation or operation may result in unsafe operation and will void implied or expressed warranty.
WARNUNG
Lesen Sie vor der Verwendung die Anweisung. Diese Konsole muss entsprechend den geltenden Vorschriften installiert werden. Zusätzliche Versionen dieses Handbuchs sind online unter https://customer.honeywell.com/enUS/Pages/default.aspx in Frankokanadisch, Portugiesisch und Deutsch verfügbar. Bitte geben Sie im Suchfeld 32-00015 ein und wählen Sie Fachliteratur im Drop-Down Menü aus
ATENÇÃO
Leia as instruções antes de usar. Esse controle tem que ser instalado de acordo com as normas vigentes. Outras versões desse manual estão disponíveis online em https://customer.honeywell.com/enUS/Pages/default.aspx em francês do Canadá, português e alemão. Insira 32-00015 em cada caixa e selecione Literatura Técnica na caixa suspensa.
Disposal and Recycling
Waste electrical products should not be disposed of with general waste. Please recycle where these facilities exist. Check with your local authority for recycling advice.
The UV tube detector has a peak response at 210 nm.
The IR solid state sensor has a peak response at 1400 nm.
The UV solid state sensor has a peak response at 310 nm.
Cabling Options (Sold Separately)
ASYU2S - Quick Disconnect (non-PF) models molded connector cable assembly with 50 foot of C22S cable.
|
Contents |
GENERAL INFORMATION ............................................... |
1 |
SPECIFICATIONS ............................................................ |
2 |
INSTALLATION ................................................................. |
3 |
OPERATION ..................................................................... |
6 |
U2 MENU PARAMETER SETTINGS ................................ |
7 |
TROUBLESHOOTING ...................................................... |
10 |
SAFETY MANUAL ............................................................ |
13 |
Safety Function of the U2-S Model .............................. |
14 |
Proof Test Procedure ................................................... |
14 |
Proof Test Interval ........................................................ |
14 |
Product Decommissioning ........................................... |
15 |
32-00015-04
U2-S MODEL COMBINATION VIEWING HEAD AND SIGNAL PROCESSOR
ASYU2S-100 - Quick Disconnect (non-PF) models molded connector cable assembly with 100 foot of C22S cable.
ASYU2S-200 - Quick Disconnect (non-PF) models molded connector cable assembly with 200 foot of C22S cable.
ASYU2S-300 - Quick Disconnect (non-PF) models molded connector cable assembly with 300 foot of C22S cable.
C22S - Raw shielded 12 conductor, 22g, ITC, CIC approved. Order by the foot.
Table 1. Models and Associated Features.
|
|
|
|
|
|
|
|
|
Quick |
Pipe Fit |
Sensor Type |
|
|
||
Model |
Connector |
Connection |
UVTron |
IR |
|
UVSS |
Typical Fuels |
U2-1010S |
X |
|
X |
X |
|
X |
All Fuels |
U2-1010S-PF |
|
X |
X |
X |
|
X |
All Fuels |
|
|
|
|
|
|
|
|
U2-1010S-PF-050* |
|
X |
X |
X |
|
X |
All Fuels |
|
|
|
|
|
|
|
|
U2-1010S-PF-100 |
|
X |
X |
X |
|
X |
All Fuels |
|
|
|
|
|
|
|
|
U2-1012S |
X |
|
|
X |
|
|
Oil and Coal |
|
|
|
|
|
|
|
|
U2-1012S-PF |
|
X |
|
X |
|
|
Oil and Coal |
|
|
|
|
|
|
|
|
U2-1016S |
X |
|
X |
|
|
|
Gas and Light Oils |
|
|
|
|
|
|
|
|
U2-1016S-PF |
|
X |
X |
|
|
|
Gas and Light Oils |
|
|
|
|
|
|
|
|
U2-1018S |
X |
|
X |
X |
|
|
All Fuels |
|
|
|
|
|
|
|
|
U2-1018S-PF |
|
X |
X |
X |
|
|
All Fuels |
|
|
|
|
|
|
|
|
* The U2-1010S-PF-050 has a 50-ft (15m) pigtail and the U2-1010S-PF-100 has a 100-ft (30m) pigtail.
Input Power Supply: 22-26 VDC, 120 mA max (approximately 3.5 watts)
Remote Communication: 2 wire RS485 compatible with Modbus RTU protocol.
Flame And Fault Relay Contact Ratings:
1 A, 30 VDC (Resistive).
Maximum load current of 1A must be de-rated at temperatures higher than 50C ambient according to 1%/C, or 10mA/C. For example, the maximum current at 70C = 1A – (20C x 10mA) = 0.8A.
WARNINGI
Do not apply more than 30VDC to flame relay or self check relay.
WARNINGI
The U2 requires the use of an isolated 24VDC SELV (Safety Extra Low Voltage) power supply.
User Selectable Analog Output: 0-20 mA and 4-20 mA; 500 Ohm Load Max
File Select Input logic high: 21VDC min
File Select Input logic low: 16VDC max
User Interface: Capacitive TouchWheel with LED Display
Ambient temperature: -40 to 70 ºC (-40 to 158 ºF)
Enclosure: IP66
Weight: 2.8 kg (6.1 lbs)
Physical Dimensions: Diameter: 11.7 cm (4.6 inches)
Length: 15.5 cm (6.1 inches)
Finish: Silicone free powder coated
Mounting/Process Connection: 1” NPT female
Pipe Fit Models (PF version): 3/4” NPT
Fuses: Automatically resettable for power source and Flame Relay.
Maximum furnace back pressure: 35 Kg/Cm2 (500 PSI)
Selectable Flame Failure Response Time (FFRT):
1, 2, 3 seconds, Error= +0.0sec, -0.5sec.
Internal Temperature Indication: Degrees C or F in display menu of U2, or available at Modbus register 40019.
Self-Checking
Internal electronic self checking is performed once per second, to verify that system is operating properly. If self check detects an error, the flame relay, and self check relays will open, and the device will display "lockout". This lockout may only be cleared by manual entry reset at the U2 Touchwheel interface.
Approvals:
Quick disconnect type
General
FM, CSA, CE (EN298), and EAC
Hazardous Location
CSA
CLASS I, DIVISION 2, GROUPS A, B, C, D
CLASS II, DIVISION 1, GROUPS E, F, G
CLASS III DIVISION 1 T5
Ex nA nC IIC T5 Gc Ex tb IIIC T85°C Db
CLASS I, ZONE 2, AEx nA nC IIC T5 Gc
ZONE 21 AEx tb IIIC T85°C Db
IECEx SIR 15.0068X Ex nA nC IIC T5 Gc
Ex tb IIIC T85°C Db IP66
SIRA 15ATEX4193X Ex nA nC IIC T5 Gc
Ex tb IIIC T85°C Dc IP66
32-00015—04 |
2 |
U2-S MODEL COMBINATION VIEWING HEAD AND SIGNAL PROCESSOR
PF version
General
FM, CSA, CE (EN298), and EAC
Hazardous Location
CSA
CLASS I, DIVISION 1, GROUPS A, B, C, D
CLASS II, DIVISION 1, GROUPS E, F, G
CLASS III DIVISION 1 T6
Ex d IIC T6 Gb Ex tb IIIC T85°C Db
CLASS I, ZONE 1, AEx d IIC T5 Gb
ZONE 21 AEx tb IIIC T85°C Db
IECEx SIR 15.0068X Ex db IIC T6 Gb
Ex tb IIIC T85°C Db IP66
SIRA 15ATEX1192X Ex db IIC T6 Gb
Ex tb IIIC T85°C Db IP66
! CAUTION
Possible Equipment Damage
The aluminum surface of the U2 may store an electrostatic charge and become a source of ignition in applications with a low (<30%) relative humidity. Cleaning the surface should only be done with a damp cloth.
! CAUTION
Do not expose to acetone, gasoline, hexane, or ethyl acetate. label is not approved for these chemicals.
Non-PF/ |
|
|
Color |
Function |
Connection |
9-Tan |
File Select Output, 0 or +24V |
To burner control |
|
output. Feedback for system |
system. 0V = File |
|
controlling file input select. |
Select Input is low, or |
|
|
+24V if FileSelect |
|
|
Input is high. |
|
|
|
10-White |
+RS485 Modbus |
To Modbus + |
|
|
|
11-Drain |
Cable Overall Shield |
To Earth Ground |
|
|
|
12-Brown |
-RS485 Modbus |
To Modbus - |
*Note - pink wire unused, leave unconnected.
! CAUTION
Check wiring before applying power to the system to make sure it is in accordance with the wiring chart. Incorrect wiring may result in unsafe operation or damage to U2.
NOTES:
1.For remote configuration and monitoring, refer to Honeywell manuals for FlameTool for PC (32-00001-01) and HMI S7999 Panel (32- 00003-01).
2.A total of eight parameter files are available. Files 2 through 7 may be accessed using Flametools, and configured using Modbus register 40093.
See “Typical Installation Diagram.” on page 12.
|
|
|
Non-PF/ |
|
|
Color |
Function |
Connection |
|
|
|
1-Red |
Power Supply +24 VDC |
To power supply |
|
Connect to 22-26 VDC |
positive terminal |
|
|
|
2-Purple |
File Select Input, 0 or 1 |
To control output. |
|
|
>21V input = file 1, |
|
|
<16V = active file |
|
|
defined at Modbus |
|
|
register |
|
|
40093(default 0). |
|
|
|
3-Orange |
mA output (+) |
To current meter |
|
|
positive |
|
|
|
4-Blue |
mA output (-) |
To current meter |
|
|
negative |
|
|
|
5-Black |
Power Supply Return (-) or 0 |
To Power Supply |
|
VDC |
negative terminal. |
|
|
|
6-Yellow |
Flame Relay (NO) |
To flame/fault relay |
|
(power in) |
power source |
7-Green |
Fault Relay (NO) (fault output) |
To fault monitoring of |
|
|
burner control system |
8-Grey |
Flame Relay (NO) (safety |
To burner control |
|
output) |
system |
|
|
|
See “Typical Installation Diagram.” on page 12.
Installation should be carried out by a qualified engineer and should meet all local standards and safety requirements.
Hazardous location installations require the use of ITC/CIC approved cable installed in cable tray for non-PF models, and in metal conduit for -PF models. The cable installation must conform to the latest revision of the National Electrical Code, or Canadian Electrical Code for Class I, Division 2 (non-PF models), or for Class I, Division 1 (-PF models).
WARNINGI
Approved CLI, DIV1 conduit seal must be installed at PF model enclosure fitting for CLI, DIV1 hazardous location use.
Non-PF models must be secured as follows: hand-tighten the connector at viewing head until it can be turned no more. Continue tightening the connector an additional 180 degrees using pliers, or similar tool. Verify that connector cannot be loosened by hand.
WARNINGI
Over-tightening the connector can damage the connector or housing.
Damage will void warranty and hazardous location approvals. Do not exceed 180 degrees of further rotation after hand tightening!
3 |
32-00015—04 |
U2-S MODEL COMBINATION VIEWING HEAD AND SIGNAL PROCESSOR
WARNINGI
EXPLOSION HAZARD
DO NOT DISCONNECT WHILE CIRCUIT IS LIVE UNLESS AREA IS KNOWN TO BE NONHAZARDOUS.
Substitution of components may impair suitability for class i, division 2.
The U2-S model viewing port is designed for interface to a 1" NPT (M) fitting. The viewing head can be mounted in any orientation, any angle, upward or downwards.
It is recommended that earth ground is applied at the labeled earth ground screw connection on the housing. It is recommended the drain wire be connected to earth at power supply.
To reduce noise interference from ignition transformer or other high voltage sources, make sure all high voltage cables are in good condition and are at least 300 mm (12") away from U2 wiring.
Honeywell can provide mounting accessories such as a swivel mount, heat/electrical insulator, quick mechanical disconnect, high pressure isolation unit, etc. Check with your sales representative for your application.
1.Ensure location provides clear view of the flame under all operating conditions.
2.If the burner is provided with a pipe mount, use a bell type reducer to 1" NPT (M).
3.When using purge/cooling air, make sure hoses are electrically isolated from the Earth to prevent multiple ground loops.
4.Depending upon the application, purge/cooling air pressure and flow will be different. As it is easier to measure pressure than flow, ensure that the entrance to air connection is a minimum of 25 mm WC (1" wc) above back pressure at all the time, from minimum to maximum load.
5.IMPORTANT!
FLAME DISCRIMINATION
In multi-burner applications, it is important to sight for high frequency, high radiation intensity zone of the target flame, while sighting the low frequency, low radiation intensity zone of the background flame see Fig. 3 for IR, or Fig. 4 for UV for an example. This allows for filter, gain, and threshold settings to properly discriminate or recognize the target flame while rejecting background flame.
6.Where practical, use a swivel mount to allow for adjustments to optimize the flame viewing location.
1 (25) NPT |
1(25) |
|
|
5-3/32 (130) |
||
CONNECTION |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4-19/32
(118)
|
|
|
|
|
|
|
3/4 (19) NPT |
2-29/32 (73) |
|
|
|
|
|
||
|
|
|
|
|
CONNECTION |
||
|
|
|
|
|
M34431
Fig. 1. Dimensional drawings.
BURNER FRONT PLATE |
|
OR WINDOWBOX |
|
|
R-518-CL12-PG |
1 (25) |
PURGE AIR COUPLER |
NPTF PIPE |
AND R-518-PT12 |
|
INSULATING LOCKING |
|
COUPLER ADAPTER |
FLANGE |
|
(OPTIONAL) |
|
|
M33628 |
Fig. 2. Typical mounting example.
32-00015—04 |
4 |
U2-S MODEL COMBINATION VIEWING HEAD AND SIGNAL PROCESSOR
HIGH FREQUENCY
FLICKER ZONE
DETECTOR IN GOOD SIGHTING POSITION (PARALLEL SIGHTING)
BURNER NOZZLE
CENTERLINE
DETECTOR IN POOR
SIGHTING POSITION
LOW FREQUENCY
FLICKER ZONE
M33285B
Fig. 3. IR viewing head location.
UV VIEWING
HEAD SIGHTED
ON UV ZONE
UV RADIATION
ZONE
BURNER NOZZLE
CENTERLINE
M33286B
Fig. 4. UV viewing head location.
5 |
32-00015—04 |