J.B.
Systems Ltd.
To Whom it May Concern
J.B. System Limited is a manufacturing company situated in England and established in 1986. Products and services are follows.
FLAME MONITORING
The IRIS Uniscan is a simpler version of the IRIS 500 and is for use on process heaters.
The IRIS 500 flame monitoring systems is a sophisticated solid state electronic unit for detecting the presence of flame in industrial gas, oil and coal fired boilers. Typical applications are found in the petro/chemical and power generation industries. This equipment has been successfully evaluated by BP at the Sunbury testing facility.
The IRIS 600 is a flame ionisation relay and is intended for use with a flame rod to detect gas pilot flames.
IGNITION SYSTEMS
Ignition/Detection
For interfacing between a central control systems and process burners we offer custom-built ignition/detection enclosures. These can be in safe area of hazardous area enclosures. Typically the system will comprise a high-tension ignition transformer and some form of flame detection as described in the above paragraph.
Control Systems
Although the capability exists to produce systems for most types of control application, the company has tended to specialise in the combustion/burner control market.
Panels and systems are produced either from customer designs or designs produced on the company's CAD facility in house.
Panels are either purchased from ATX, or in some cases, are specially manufactured.
Igniters
The company holds the sole UK rights for Salice igniters, which are manufactured in Milan. The company holds stocks of high energy ignition systems. Typical applications are in the industrial sector where reliable ignition of pilot flames is important. Hazardous area versions are also available.
Explosion Proof Enclosures
The company are stockists and authorised assemblers for ATX ATX EExd enclosures. The authorisation allows the machining of cable entries and the fitting and wiring of equipment in accordance with customer requirements. All finished enclosures carry an LCIE/CENELEC certificate.
Increased Safety Enclosures
The company are stockists and authorised assemblers for ATX ATX EExe enclosures. These consist of either terminal enclosures or control stations fitted lamps and pushbuttons.
The company exports to the following countries.
Italy, Holland, Luxembourg, Israel, South Africa, Australia, U.S.A., South Korea, U.A.E., Egypt, Ireland, Canada,
In respect of the flame monitoring, the company holds the following, U.K. patent. 2131585
COMPANY PROFILE
J.B. Systems Limited - Profile J.B. Systems is a privately owned company formed in 1986.
The ownership of the company is held equally between the two directors P. Jackson and J. Bulger.
The turnover for the year ending June 1998 was £1,069,852. Customers include many well known names namely British Gas, British Petroleum, Compair, Texaco, Mobil, Conoco, Hamworthy Combustion, John Zink, National Power as well as several clients overseas.
All products and systems are manufactured in the company's three freehold premises totalling 7000 sq. ft. in Aylesbury.
The company activities can be divided into five main areas.
Products
The Iris 500 flame monitoring system is sophisticated solid state electronic unit for detecting the presences for flames in industrial gas/oil/coal fired boilers. Typical applications are found in the petro-chemical and power generation industries..
The equipment has been successfully evaluated by BP at their Sunbury testing facility. ‘
The Iris Iniscan is simpler version of the above and is for use in process heaters.
The Iris 600 is a flame ionization relay and is intended for use with a flame rod to detect gas pilot flames.
The Iris trade name is registered in most European countries and other countries throughout the world.
High Energy Igniters
A range of fixed and portable high-energy (3000 Volt, 16 joule) igniters is available. These can be in safe or hazardous area enclosures. They are acpable of igniting a gas or light oil flame directly.
HAZARDOUS AREA ENCLOSURES
J. B. System Limited offer a custom design and build service for control system in EExe and EExd enclosures. All enclosures are fully certified LCLE/CENELEC. The contents ca range from a simple starter to a PLC, depending on the application.
We design form a customer specification, produce general arrangement and wiring diagrams and complete the system to the customers satisfaction.
LIGHTING
J.B. Systems Limited offer a range of increased safety (Eexe) and flame proof (EExd)
Light fittings. These range from bulkhead/wellglass fittings to 2 x 58 watt luminaries single and bi-pin. A range of emergency lighting with built in battery power for upto 1 hour are also available.
PLUGS & SOCKETS
A range of increased safety (Eexe) plugs and sockets form 16 amp to 63 amp in various pin format are available.
|
J.B. Systems
Ltd. is a manufacturing company situated in England and established in 1986.
Products
and services are as follows:
FLAME
MONITORING
Iris
Unican
This Unit has all the electronic in the viewing head,
there is no separate amplifier. It is intended for use on oil or gas fired process
heaters for pilot or main flame monitoring. It is a simple low cost system that
is easy to maintain.
Iris
500
This comprises and amplifier and separate viewing head. It
is intended for use on larger utility boilers normally found in power stations.
Iris
600
This
is a flame ionisation relay, to be used with a flame rod for pilot flame monitoring.
IGNITION
SYSTEM
Ignition/Detection
For interfacing
between a central control systems and process burners, we offer custom built ignition/detection
enclosures. These can be in safe area or hazardous are enclosures. Typically,
the system will comprise a high tension ignition transformer and some form of
flame detection as described in the above pragraph.
High
Energy Igniters
A range of fixed and portable high energy (3000 volt, 16 joule) igniters
is available. These can be in safe or hazardous area enclosures. They
are capable of igniting a gas or light oil flame directly.
HAZARDOUS
AREA ENCLOSURES
J.B. Systems ltd. offer a custom design and build service for control
systems in EExe and Eexd enclosures. All enclosures are fully certified
LCIE/CENELEC. The contents can range from a simple starter to a PLC,
depending on the application.
We
design from a customer specification, produce general arrangement and wiring diagrams
and complete the system to the customers satisfaction.
Company
Profile
J.B. Systems is a privately owned company formed in 1986.
The
ownership of the company is held between the two directors: P.Jackson
and J.Bulger.
The turnover for the year ending June 1998 was £1,069.852.
Customers include British Gas, British Petroleum, Compair, Texaco, Mobil, Conoco,
Hamworthy Combustion, John Zink, National Powers as well as clients overseas.
All products and systems are manufactured in the company's three freehold
premises totaling 7000 sq. ft in Aylesbury.
The company activities can
be divided into five main areas.
Products
The Iris 500 flame monitoring systems is a sophisticated
solid state electronic unit for detecting the presence of flame in
industrial gas/oil/coal fired boilers. Typical applications are found
in the petrochemical and power generation industries.
This equipments has been successfully evaluated by B.P. at the Sunbury
testing facility.
The Iris Uniscan is a simpler version of the above and
is for use on process heaters.
The Iris 600 is flame ionisation relay and is intended
for use with a flame rod to dectet gas pilot flames.
The Iris trade name is registered in most European countries and other
countries throughout the world.
Control
Systrems
Although the capability exists to produce systems for most types of
control application, the company has tended to specialise in the combustion
/ burner control market.
Panels and systems are produced either from customers designs or designs
produced on the company's CAD facility in house.
Panels are either purchased from Legrand, or in some cases, are specially
manufactured.
Igniters
The company holds the sole U.K. rights for Elter igniters, which are
manufactured in Milan. The company holds stocks of high energy ignition
systems. Typical applications are in the industrial sector where reliable
ignition of piolt flames is important. Hazardous area versions are
available.
Explosion
proof Enclosures
The company are stockists and authorised assemblers for Legrand ATX
EExd enclosures. The authorisation allows the machining of cable entries
and the fitting and wiring of equipment in accordance with customer
requirements. All finished enclosures carry an LCI/CENELEC certificate.
Increased
Safety Enclosures
The company are stockists and authorised assemblers for Legrand ATX
EExe enclosures. These consist of either terminal enclosures or control
stations fitted with lamps and pushbuttons.
The company exports to the following countries:
Itally, Holland, Luxembourg, Israel, South Africa, Australia, U.S.A.,
South Korea, U.A.E, Egypt, Ireland, Canada.
In respect of the flame monitoring, the company holds the following,
U.K. patent. 2131585.
The IRIS
UNISCAN is a fail-safe flame monitor and amplifier, mounted completely
into one enclosure. Its purpose is to monitor gas or oil flames in
process heaters, or smaller utility boilers.
The operating voltage range is 18 to 27 VDC, so that losses or fluctuations
in the line voltage have no effect within these parameters.
The flame on output is a 24 VDC signal. There is also a 4 to 20 mA
analogue signal output, suitable for driving a flame signal meter,
or chart recorder.
As well as gain and drop out time adjustments, a high band pass filter
with four positions is provided for better discrimination.
A separate DIN rail mounting power supply module, to provide a 24
Vdc output from a 115/230 Vac input is available if required.
Features
100% FAIL SAFE
NO SEPARATE
FLAME AMPLIFIER
- ALL THE ELECTRONICS ARE SITUATED INSIDE THE VIEWING HEAD
OPERATES ON
24 VDC(115/230 VAC USING THE SEPARATE POWER SUPPLY MODULE)
FLAME ON SIGNAL
TRANSMISSION
DISTANCE - NO UPPER LIMIT IF CABLE SIZED CORRECTLY
4 POSITION
HIGHPASS FILTER SWITCH FOR IMPROVED DISCRIMINATION
General
Description
The
IRIS 500 is a sophisticated flame monitoring system having a variety of applications,
but is particularly successful in the more difficult situations, where discrimination
proves to be a problem.
The flame amplifier comprises a mother board, an analogue
signal processor. The analogue board contains the circuitry required to produce
a flame on/off output, an analogue flame signal intensity meter, hysteresis ration
selection switch and flame out delay timing, adjustable 1 to 6 seconds.
The
digital board is composed of a 4 digit LED display, and two 4 digit set point
switches - one for flame on threshold and one for flame off.
The function
of the analogue board is to provide the flame on / off safety channel. The digital
board, which is not required for the basic operation of the system, can be used
in conjunction with, or separate to, the analogue board to provide diagnostic
or additional control function.
VIEWING
HEADS
Four viewing heads are available.
The UV head in which self
checking is accomplished by a mechanical shutter, is suitable for use on gas and
light oil flames. Its spectral response is 185 to 300 nm.
In the IR, IRGS
and IRX2 viewing heads, the self checking is achieved by using an electronic switch
- hence there are no moving parts. Failure of a component in any mode, will cause
the output realy to de-energise.
All 3 respond to the high flicker frequency
of the flame. It is this AC flicker which generates the signal which is essential
if good discrimination is to be achieved. The IR viewing head employs a silicon
photodiode, and has a spectral response of 200 to 1080 nm. Its primary function
is for use on large multi burner boilers firing heavy oil and P.F.
The IRGS viewing head employs a germanium photodiode with a spectral response
of 750 to 1900 nm. It has been specially designed for operation on applications
where gas and oil are fired individually of together.
The IRX2 twin channel viewing head uses a sillcon/lead sulphide two
colour detector, having a wide spectral response of 350 to 3000 nm.
It is particularly successful in detecting difficult fuels, such as
H2S, where masking of the lower frequencies can cause nuisance shutdowns.
FEATURES
100& FAIL SAFE (CHECKED ONCE A SECOND)
ULTRA VIOLET, INFRARED & TWIN CHANNEL VIEWING HEADS
OPERATES ON 115/230 VAC OR 24 VDC
4 POSITION HIGHPASS FILTER SWITCH FOR IMPROVED DISCRIMINATION
SEPARATE SENSITIVITY SETTINGS FOR DUAL FUEL APPLICATIONS
APPLICATIONS
GAS, OIL
& PULVERISED COAL
LIME KILNS
BLACK
LIQUOR RECOVERY BOILERS
SOUR GAS (H2S) BURNER
The
IRIS 600 flame ionisation relay is used in conjuction with a flame rod to detect
the presence of a flame. It incorporates the following features:
Ten segment bargraph display to indicate flame strength. The flame relay will
energies when the fourth bargraph segemnt from the bottom illuminates.
Plug-in, for easy maintenance.
Voltage selector switch 110/230 vac. This is accessible by removing the relay
from its base.
Power on indication
(bottom segment of bargraph)
| Power Supply: |
110
volts 50/60 Hz. or
230 volts 50/60 Hz. |
| Voltage
tolerance: |
+10%
to -15% |
| Power
consumption: |
8VA |
| Ambient temperature: |
-20
to +70°C |
| Degree
of Protection: |
IP40 |
| Contact Rating: |
1
amp @ 24 vdc,
0.5 amp @ 110/230 vac |
Flame
Failure:
Response
Time |
Less than 1 second |
