BRAHMA RE3 User manual

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44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
website: https://www.add-furnace.com/ โทร: 02-888-3472
Line ID: @add11 e-mail: [email protected]
FLAME DETECTOR FOR GAS
TYPE RE3
DESCRIPTION
The RE3 control is suitable to verify the presence of flame
on gas burners. In fact it can use either a UV phototube or
an electrode to exploit the flame rectification effect
(ionization).
FEATURES
 in accordance with EN 60730;
 electrical service life at max. declared loading >
250.000 operations;
 compact and easyinstallation;
 connecting socket with screws or fast-on terminals
(types A, B, N and T);
 signalization with LEDs of different colour: green
(POWER) and red (FLAME).
MAIN APPLICATIONS
The RE3 flame detector is mainly used for industrial
applications and for the installation of semiautomatic
ignition and control systems, when it is necessary to control
simultaneously and sequentially several burners.
The presence of LEDs to signalise the operation also
permits the use of RE3 control simply as flame detector.
OPERATION
Supply is signalled by the turning on of the green coloured
LED (POWER) fitted on the front of the plastic enclosure. A
second LED, red coloured, placed next to the first one,
turns on when the flame detection has occurred. This event
corresponds to the switching on of the independent
contacts available in output.

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4071_r02
44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
website: https://www.add-furnace.com/ โทร: 02-888-3472
Line ID: @add11 e-mail: [email protected]
OVERALL DIMENSIONS
(*) It depends on the socket type:
59.5 socket A
63.5 socket B
62.8 socket N and T
socket AandB socketT
(*) It depends on the socket type: 5 socket A
9 socket B
Fig.2
Fig.3
socket N
Fig.1
The phototube UV2/N has an intermediate sensitivity between standard and
selected UV1.
As regards the phototube life, we suggest to replace it after
10.000 hours to avoid the danger of a “flame on” signal also after the
flame has been extinguished, which is likely to happen when the tube gets
tooold.
DETECTION ELECTRODE
The detection electrode we produce can be supplied in different shapes and
dimensions (see Fig.4).
This control can use the connecting sockets with screw terminals mod. A, B,
N or socket mod. T. for fast - on terminals, which couples with lateral bolted
enclosure.
Please note that socket type B is higher than type A and its terminals can
hold a greater number of
cables.
TECHNICAL DATA
Fig.4
ACCESSORIES
The users’ different requirements regarding flame detection for gas systems,
can be met by using the following probes of our production:
- UV1 standard phototube(Fig.2);
- UV1/A selectedphototube;
- UV1/H high sensitivityphototube:
Case: nylon
Case diameter: mm 22
Case length: mm 85
Cable length: mm 600 (standard)
- UV2/N (Fig.3):
Case: nylon
Case diameter: mm 17
Case length: mm 76
Cable length: mm 600 (standard)
- Supply: 220V-50/60Hz
on request: 240V-50/60Hz
110V-50/60Hz
120V-50/60Hz
- Operating temperature: 0 ÷60°C
- Humidity: 95% max. at 40°C
- Case Protection Degree: IP40
- Power consumption in running: 3 VA
- Contact rating: 5A 250 V AC ( cos= 1.0) 3A
250 V AC ( cos= 0.4)
5A 30 V DC
- External Fuse (F): 50 mA T
- Minimum ionization current: 0,5A
- Recommended ionizationcurrent:
with UV tube: 15A
with electrode: 5A
- Reaction time: 1s

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44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
website: https://www.add-furnace.com/ โทร: 02-888-3472
Line ID: @add11 e-mail: [email protected]
Weight:
with A socket
280 g
with B socket
300 g
with T socket
250 g
with N socket
290 g
CONSTRUCTION
The plastic material made enclosure protects the control from
possible damages depending on crashes, openings, dust deposit,
contact with outside ambient.
Two LEDs of different colour, GREEN for power on and RED
for flame on, fitted on the upper side of the enclosure, permit an
immediate identification of the state of burner and control; a
version without signalling LEDs is also available.
DIRECTIONS FOR INSTALLATION
 Connect and disconnect the control only with supplyoff.
 The control can be assembled in everyposition.
 Avoid exposure to dripping water.
 Ventilation with the lowest temperature ensures the longest life
of thecontrol.
 Make sure that you are using the correct type and code before
installing or replacing the control.
ELECTRICAL INSTALLATION
 Every contact must be protected with a fuse of the fast blow
type suitable to the loadsconnected;
 Before starting the control, check cables and connections
carefully (see Fig.5). Wrong connections can damage the
control and compromise the safety of theapplication;
 A suitable degree of protection must beguaranteed;
 The relevant electrical safety standards must be respected.
Fig.6
Fig.7 shows the diagram suitable to the installation of a
semiautomatic system for gas burners. For the flame detection,
both an ionization electrode or a phototube can be used.
Acting on the manual start button PM (with two contacts normally
open) supply is given to the TR ignition transformer and the EV 1
gas valve; the manual pressure on the button must be kept until
the flame is built and stable.
APPLICATION EXAMPLES
BRAHMA TYPE RE3
NOTE1:WIREMARKEDWITHNUMBER8
MADE IN ITALY
Fig.7
BRAHMA TYPE RE3
MADE IN ITALY
Fig.5
By releasing the button PM, the ignition transformer is turned off
and the operation continues until one of the following situations
occurs:
- action on the manual stop button PA;
- intervention of the thermostatT;
- flame failure.
In any situation, the operation can be reset only by manual
intervention on start button PM.
In the same picture is also represented a duty example of the
second available contact, to detect the flame in distance.
Fig.8 represents two connection diagrams for using the RE3 flame
detector with the control box for automatic gas burners, model
CM391 belonging to the EUROBOX series
CHECKING AT START
lways check the control before the first start and also after a long
period of system off. Before any ignition attempt make sure that
the combustion chamber is free from gas. Then check that the
level of the flame signal is sufficient (see Fig.6a and 6b for the
measuring).
(see the relevant leaflet).
DETECTION
PROBE
UV
NC
NC
5A
COM
5A
COM
NA
NA
NA
NA
5A
5A
COM
COM
NC
NC
BLUE
NOTE1
DET.
PROBE

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4071_r02
44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
website: https://www.add-furnace.com/ โทร: 02-888-3472
Line ID: @add11 e-mail: [email protected]
BURNER 1
BURNER 2
LIVE
NEUTRAL
(a)
The diagram in Fig.8a differs from the one in Fig.8b for the
presence of fan control and air pressure switch. This
connection permits the ignition of two burners in sequence,
with cross checking of the “flame on” state. A contact of the
internal relay of RE3 is used to check the efficiency of the
detector to prevent the beginning of the ignition cycle if the
detector doesn’t operate correctly.
The ignition of burner 2 occurs only after the ignition of
burner 1 and, as the flame detection is cross - checked
between CM391 and RE3, the turning off of one burner
causes also the immediate turning off of the other one.
(b)
Fig.8
ATTENTION-> Company Brahma S.p.A. declines any responsibility for any damage resulting from the Customer's interfering with the device.
LIVE
NEUTRAL