EDS RK 90 R User Manual
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EDS - RK90R - OPTICAL BEAM SMOKE DETECTOR - USER GUIDE
REFLECTIVE TYPE
OPTICAL BEAM SMOKE
DETECTOR
RK 90 R
USER GUIDE
TECHNICAL INSTRUCTIONS FOR
INSTALLATION, SETUP AND
MAINTENANCE
EDS - RK90R - OPTICAL BEAM SMOKE DETECTOR - USER GUIDE
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CHAPTER INDEX
1 - Qualified Personnel
2 - Relevant Standards
3 - Installation
4 - Cable Connections
5 - Electrical Connections and Initial Setup
6 - Operation
7 - Optical Allignment
8 - Set Up of Obscuration circuit
9 - Setting of Turbulence (Heat) Circuit
10 - Detector’s Activation
1 1 - Autocompensation
12 - OPerational Test
13 - Fault Output
14 - Alarm Memory
15 - Frontal Leds Operation
16 - Maintenance
17 - Sensitivity Selection
18 - Technical Data
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EDS - RK90R - OPTICAL BEAM SMOKE DETECTOR - USER GUIDE
STANDARD STARTING CONDITION
• SW1 - position 1 (minimum threshold level)
• SW2 - position 1 (minimum threshold level )
• SW3 - position 4 (maximum Trasmitter power )
• JP1 - position 2-3 (ottic allignment insert)
• JP2-JP3 - position 2-3 (alarm and turbulence relays NC)
• JP4 - position 1-2 (fault relay) NC)
• JP5 - position 1-2 (memory OFF)
• JP7 - not insert (alarm relais NC)
• P1 - regutator trimmer at half scale
EDS - RK90R - OPTICAL BEAM SMOKE DETECTOR - USER GUIDE
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QUICK INSTALLATION
The procedure below is intended for trained personell with previous experience in installing EDS
Beam Smoke Detectors RK90R. If you don’t have the needed experience please refer to the standard
installation procedure of this manual.
1 - Fix the RK90R detector
2 - Connect the cables
3 - Set the JP2-JP3-JP4-JP5-JP7 jumpers (see pag.10)
4 - Make the optical allignment with the lamp
5 - Set the JP7 jumper in accord with the detector/riflector distance (tab.pag.9)
6 - Set JP1 in ON position (Allignment) (pag.10)
7 - Optimize the device signal using:
• the P1 trimmer
•
the adjustment screws V1-V2-V3 on the optical block
• a multimeter (or the STS01 instrument)
• Blue/Red Led signal level indication (fig.8 board)
8 - with the P1 trimmer regulate the signal between 4,7V and 5V.
9 - Verify the operational obcuring the reflector
10 - select the desired sensibility of the Obscuration circuit with the SW2 selector (40-50-60-
70%)
1 1 - select the desired sensibility of the Turbulence (Heat) circuit with the SW1 selector (if used)
12 - set JP1 in the OFF position to activate the device
1 1 - close the cover within 5 minutes
12 - wait at least 5 minutes for the device to become operational
13 - perform operational tests
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EDS - RK90R - OPTICAL BEAM SMOKE DETECTOR - USER GUIDE
GENERAL
The RK90R detector is a newly-conceived microprocessor linear smoke detector, that bases its
working concept on the interaction between the smoke present in a in a room and an infrared beam
emitted by a transmitter and reflected by an optical reflector (fig.1).
The normal installation consists in mounting the detector on a wall of the room to be protected and in
fixing the FX reflector (FX01, FX02, FX03 depending on the distance) on the opposite wall.
For a correct installation, we recommend to read and follow our instructions carefully .
The excellent working results of the device will widely compensate the time spent reading these
instructions.
1 - QUALIFIED PERSONNEL
All the operations of installation, setup, startup, maintenance and verifications of operation of the
RK90R detector must only be performed by qualified personnell.
These people are qualified for their experience, specialization courses, knowledge of the current
standards and of the technical specifications, features and usage method of the product.
These people therefore are able to avoid errors or damages and assure an optimal functioning of the
product.
2 - RELEVANT STANDARDS
2.1 - For the installation in European Community countries you must follow the EC standard EN54-
14 (Fire detection and fire alarm systems).
In extraeuropean countries you must respect the relevant international and national standards.
EDS - RK90R - OPTICAL BEAM SMOKE DETECTOR - USER GUIDE
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3 - INSTALLATION
3.1 - For the installation of the RK90R detector, we advise to use besides the normal tools (drill,
expansion plugs , etc) also the following elements:
• 1 - 7mm “C” Key
• 1 - alignment lamp (we recommend to use LAL02 lamp) or an electric torch with powerful and
narrow beam)
• 1 - tester (we recommend an analogical hand Tester or ours analogical STS01 meter (optional) to be
plugged on the special connector positioned on detector’s circuit).
3.2 - Unscrew the two fixing screws (fig. 2) and remove the cover
3.3 - Install the device at a distance from the ceiling within the 10% of the height of the room to
protect.
This distance can be varied by the system designer if particular environmental conditions exist.
Wall fixing must be done with care using the holes provided inside the container.
If the wall is a solid masonry one, expansion plugs are enough.
It’s extremely important that the fixing wall or surface is rigid and not subject to deformations.
3.4 - Get the cables inside through the holes obtained breaking the suitable zones marked on the sides
of the detector’s base.
It is important to use a suitable chock with a connecting pipe to avoid that the dust penetrates inside
the device, possibly causing failure to its correct functioning.
3.5 - Install the reflector FX.. on the opposite wall and at the same height of the detector .
It is not necessary that the FX is perfectly in front of and perpendicular to the detector (angle mistake
up to 5 degrees is possible in all directions).
We recommends, for the cables economy, to install the detectorr in the nearest position to the alarm
control unit.
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EDS - RK90R - OPTICAL BEAM SMOKE DETECTOR - USER GUIDE
4 - CABLE CONNECTIONS
4.1 - The low detector’s power consumption (14 mA with normally open alarm relay contact (NO)
and 28 mA with normally closed alarm relay contact (NC)), allows to use small size sections cables.
W e suggest to use a shielded cable with 10 conductors + shield ( 2x0,75 mmq for power conductors +
8x0,22 mmq for the signal conductors) for a distance up to 1 Km.
In such way it is possible to get a remote connection of the following signals:
• alarm relay contact (terminals C1-N1 )
• turbulence (heat) alarm relay contact (terminals C2-N2)
• fault relay contact (terminals C3-N3 )
• analog 0-5V output (for signal level measure from distance)
The shield of the cable must be connected as in fig.11.
EDS - RK90R - OPTICAL BEAM SMOKE DETECTOR - USER GUIDE
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5 - ELECTRICAL CONNECTIONS AND INITIAL SETUP
5.1 - Connect the device cables as shows on the labels facing the terminal board. The given symbols
indicate what follows:
• (V+) - (V -) - supply’s terminals 11 - 30 Vdc.
• (C1) - (N1) - normally closed alarm relay contact. The connection is valid when the detector is not in
an alarm state and the JP2 is in 2 - 3 position. If JP2 is positioned on 1-2 the contact results normally
open. C1-N1 terminals are voltage free
• (C2) - (N2) - turbulence alarm normally closed contact relay. The connection is valid when the
detector is not in an alarm state and the JP3 is in 2 - 3 position. If JP3 is positioned among 1-2 the
contact it results normally open. C2-N2 terminals are voltage free
• (C3) - (N3) - normally closed fault relay contact. Connection is valid when the detector is not in fault
state and JP4 jumper is in 1 - 2 position. If JP4 is in 2-3 position the contact is normally open. C3N3 terminals are voltage free. Fault relay is normally powered (intrinsic safety)
• (SIG) - 0-5V analog output terminal. To use only during allignment.
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EDS - RK90R - OPTICAL BEAM SMOKE DETECTOR - USER GUIDE
5.2 - JUMPER SETTINGS
JP1- to enter/exit the optical alignment procedure. T o activate the procedure of optical alignment, JP1
must be in 2-3 (ON) position.
T o deactivate the procedure of optical alignment JP1 must be in 1-2 (OFF) position.
• JP1 position 2-3 (ON).......alignment procedure on
• JP1 posizione1-2 (OFF)... procedure alignment off
JP2 - JP3 - JP4 to set the output contacts respectively of Alarm relay, Turbulence relay and Fault
relay to normally closed NC or normally open NO (cap. 5.1). The RK90R detector is normally factory
preset with normally closed NC contacts. For the alarm relay the indication of JP2 is valid if JP7 is in
OFF position.
JP5 - activate the alarm memory function or to deactivate that function (detector automatically resets
alarm output)
• position 1-2 alarm memory off. When the detector gets out of alarm condition it automatically resets
alarm output
• position 2-3 alarm memory on. In case of alarm, the detector’s alarm output persists until power
supply is switched off for at least 5 seconds
JP6 - microprocessor reset (SW reset)
JP7 - jumper for set the power of the transmitter according to the distance between detector and his
reflector.
The maximum distance admitted among RK90R and reflector it depends from the type of select reflector:
25m with FX01 - 40m with FX02 - 50m with FX03 - etc.
• disconnected (OFF) JP7 maximum power for max. distance (50m)
• inserted (ON) JP7 power reduced for short distance (25m)
JP8 - selection of alarm relay operational mode : normally powered or not powered
• JP8 OFF - relay of alarm normally not powered (in case of alarm the relay gets powered). In this case
the indication is according to figure 10 (diagrams of the terminal block and the classical scheme of
connection to a control system to terminated lines)
• JP8 ON - relay of alarm normally powered (in case of alarm the relay gets not powered).
In this case the indication of 10 figure is inverted
EDS - RK90R - OPTICAL BEAM SMOKE DETECTOR - USER GUIDE
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6 - OPERATION
6.1 - the RK90R detector is equipped with 2 circuits of detection of the smoke produced by a fire:
• Obscuration - circuit sensitive to obscuration.
This circuit bases its operation on the attenuation of the infrared beam intensity , along the optical path
between the transmitter and the receiver, caused by smoke presence.
• Turbulence - circuit sensitive to turbulence.
During the beginning phase of a fire, generally there are some clouds of smoke and warm air that rise
up to the ceiling.
When these clouds and warm air intercept the infrared beam produced by the detector, they cause a
perturbation of it, because they generate changes of optical and physics characteristics in the transmission
mean of the infrared beam.
This variations are obviously time related.
An suitable circuit has been designed to detect these variations and, when these reach the programmed
amplitude and the duration in time, an alarm signals is generated.
The sensitivity is independently adjustable to fully satisfy the specific application needs.
The advantage offered by this circuit is a great speed of fire detection, because it is detected in dynamic
way in its initial phase.
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