GST I-9105R Intelligent Reflective Beam Detector Installation Guide

: September 5, 2024
: GST

GST I-9105R Intelligent Reflective Beam Detector Installation Guide

I Overview

I-9105R Intelligent Reflective Beam detector (the detector) is an addressable reflective infrared beam smoke detector that has two signal output ways: loop output and contact output. When the detector is connected with GST fire alarm control panel directly, state information will be transmitted through loop between the detector and the control panel. The detector can be programmed by GST programmer. Code range is within 1~242. When the detector is not connected with the control panel, fire and fault information can be transmitted by contacts. The detector must be used together with a reflector. The number of reflector(s) to be used (one or four) depends on the distance from the detector.

With excellent built-in microprocessor, the detector has strong ability of analysis and judgment. The detector can carry out system adjustment, compensation of variation of ambient data, and judgment of fire and fault through fixed algorithm. With new and reasonable design, esthetical pleasing, flexible judgment and alignment method, it’s easy to install and adjust. The sensitivity of the detector can be set through hand held programmer in field, decreasing the demand for cleanliness of field conditions, and enlarging application areas.

The detector is applicable to historical buildings, warehouses, large storages, shopping malls, leisure centres, exhibition halls, hotel lobbies, printing houses, clothing factories, museums and prisons, as well as places where slight smoke particles.

II Features

Wide operating voltage range, big monitoring areas.
Combination of the emitting and receiving part makes mounting easy and optical pathway accurate.
Built-in microprocessor enables intelligent judgment about fire alarm and fault.
The detector can calibrate automatically, which ensures a single person complete adjustment in short time. It’s also convenient to operate.
Self-diagnosis function can monitor the inner fault.
Automatic compensation for factors weakening received signals, such as a certain of dust contamination, positional excursion and ageing transmitter.
Simple to control and operate by integrating digital bus protocol.
Electronically addressed. The address can be programmed in field.
Two sensitivity levels can be set in field.
The detector’s optical pathway is designed with strong anti-interference ability.
SMT processing technology.
Attractive and decent appearance.
Standard: EN 54-12:2015.

III Technical Specifications

Operating Voltage: 24VDC (18V~28V)
Loop Voltage: 24V(15V~28V)
Operating Current:
Power current: Commission current ≤ 20mA
Standby current ≤12mA
Alarm current ≤22mA
Fire, fault contact output Fire output contact: contact capacity is 28V/2A. Normally open in normal state, closed in fire condition. Fault output contact: contact capacity is 28V/2A. Closed in normal state, and open in fault condition.
Angle of Adjusting: -6°+6°
Maximum angular misalignment: ±0.5°
Sensitivity Level:
Level 1: 1.6dB Level 2: 2.3dB
Indication of Detector State: Commission: Green LED and yellow LED are lit or flashed in a certain way. Refer to details in Section VI Commission. Normal monitoring state: Red LED flashes periodically. Fire: Red LED illuminates when the detector reports fire alarm. Fire output contact is closed. The fire signal can be transmitted to the control panel through loop and has to be cleared by the control panel. Power on the detector again to clear the fire signal if GST control panel is not connected. Fault: Yellow LED illuminates. Fault output contact is open. The detector clears the fault signal automatically if the condition causing the fault disappears. Optical pathway obscured totally: If the optical pathway is obscured rapidly totally the detector will give a fault signal and turn on the yellow LED, meanwhile the fault relay is activated. When entering the fault condition, the detector continues to sample, if the beam attenuation of the optical pathway increases the detector will enter the alarm condition, otherwise the detector remains in the fault state. The detector will clear the fault signal and restore the fault relay automatically if the obstruction is removed.
Operating Environment:
Temperature: -10C～+50C
Relative Humidity≤95%, non condensing
Monitoring Area: Maximum monitoring area: 14×1001400m2 Maximum width: 14m
Length of Optical Pathway: 8m100m
Ingress Protection Rating:
It is IP20 in ordinary environment; it is IP66 through glue-seal treatment in special environment.
Dimensions:
Length: 206mm Width: 95mm Depth: 95mm
Material and Color of Enclosure: ABS, gray
Weight: 450g
Mounting Hole Spacing:
Spacing for embedding: 158mm Spacing for surface mounting: 79mm×96mm

IV Structure and Operation Principle

Appearance of the detector is shown in Fig. 1.
Internal devices of the detector and positions to be glued are shown in Fig. 2.
Operation Principle The detector and reflector are placed oppositely. The detector includes emitting part and receiving part. Infrared beam of certain intensity sent out from the emitting part is reflected by the right-angle prisms of the reflector, and then received by the receiving part of the detector. The receiving part simultaneously collects and amplifies the returned infrared beam, analyze and judge the collected signals through its microprocessor. When the detector is in normal monitoring state, the intensity of infrared beam received by the receiving part is steady at a certain level. When smoke particles enter the detecting area, the intensity of infrared light received by the receiving part falls owing to light scattering. When the smoke particles reach a certain density, and the intensity of infrared light received by the receiving part is reduced below the preset threshold value, the detector alarms fire, illuminates red LED. And fire output contact is closed. If connected with GST control panel, the fire signal will be passed to the panel through loop. Operation principle is shown in Fig. 3.

V Mounting and Wiring

1. Ambient Conditions for Installation

The detector works on light obscuration principle. Avoid any fixed or moving obscuration in its optical pathway when installing.
The wall for mounting either the detector or the reflector should be firm and smooth. The detector is mounted vertical to the wall. The wall may seem to be smooth, but corrugated or uneven, or may be changed by the environment (in rainy season or in winter) and the installer should ensure the detector not affected by these factors. If the detector is installed on sustaining rack similar to metal tube, make sure the sustaining rack fixed firmly.

Not Fit For Locations where:
▶ Space height is over 40m.
▶ It is not roofed.
▶ Space height is less than 1.5m.
▶ There are a lot of dust, powder or vapor.
▶ It is clean normally, but can be dusty in some special cases.
▶ Temperature is high. Note: Temperature at top part of a workshop with transparent roof may be over 50 when there is sunshine.
▶ There is no access for maintenance.
▶ The Mounting wall or fitting is greatly affected by mechanical vibration.
▶ There are fixed or moving objects within 1m from the detector’s optical pathway.
▶ There is strong magnetic field.

2. Mounting Height and Position

The mounting height of the detector and reflector should be most accessible by smoke into beam zone. The following recommendations are for reference: a) When space height is not over 5m, the detector and reflector should be mounted on the two facing walls 0.5m from the ceiling, as shown in Fig. 4.

b) When space height is between 5m and 8m, the detector and reflector should be mounted on the two facing walls 0.5m to 1m from the ceiling, as shown in Fig. 5.

c) When space height is more than 8m, the roof is normally gabled without ceiling, the detector and reflector should be mounted on the two facing walls about 8m from the floor, ensuring that the vertical distance between the detector/reflector and top of the building is not less than 0.5m, as shown in Fig. 6. The distance should be 7m from the detector to the floor.

d) For gable structure with space height about 8m, the detector and reflector should be mounted on the two facing walls 1.5m from the gabled girder, as shown in Fig. 7.

e) If the surroundings are glass or transparent plastic, please place the detector on the south wall in a building. If the detector
cannot be mounted northward, then place the detector on the west wall. For applications where sunlight can reach the detector after reflected, please consider mounting a sunshade over the detector’s optical pathway or contact our field application engineer for a solution.

3. Mounting

Setting Length of Optical Pathway Before installation, you need to set the length of optical pathway first by setting device type of the detector according to application environment. The detector can work at four levels of length. Refer to the table below.

Refer to Section VIII Operation for detailed setting device type of a detector.

Mounting the detector

Align the detector and the reflector horizontally on the two facing walls in monitoring area, as shown in Fig. 8

The detector can be surface-mounted in two ways: with conduit embedded surface-mounted.

Embedding conduit
a. Remove the detector’s top cover.
b. Align the base of the detector over the back box and mark the positions of mounting holes on the wall.
c. Drill two holes at the marked positions, and push two 6 plastic expansion bolts in.
d. Thread the wires through the cable entry, ensuring the length of wires inside convenient for connection.
e. Fix the detector base on the wall with two plastic expansion bolts and flat washers. Mounting method is shown in Fig. 9.
Conduit surface mounting
a. Put the mounting bracket at position intended to install the detector; mark the locations of the four holes of mounting bracket on the wall.
b. Drill the holes on marked positions, and push 6 plastic expansion bolts in.
c. Fix the mounting bracket on the wall with four 6 plastic expansion bolts and flat washers.
d. Remove the detector’s top cover; thread the wires through the cable entry, ensuring the length of wires inside convenient for connection.
e. Fix the detector base onto the bracket with two M4× 10 bolts and flat washers.
f. The mounting bracket should be earthed through the mounting hole.
Mounting method is shown in Fig. 10.
Mounting the Reflector: The reflector is mounted opposite the detector but in line with it. When the distance between the detector and the reflector is more than 8m (less than or equal to 40m), one reflector is enough. When the distance is more than 40m (less or equal to 100m), four reflectors are needed. Two 6 plastic expansion bolts are needed to fix a single reflector. Mounting size is shown in Fig.11a. If four reflectors are needed, place them seamlessly as shown in Fig. 11b.

4. Wiring

Connect 24VDC power wire (without polarity) to terminal D1 and D2 of the detector in field. Connect the control panel loop (polarity insensitive) to terminal Z1 and Z2. The reflectors need not to connect with wires. K11, K12 are fire output contacts. K21 and K22 are fault output contacts. Terminals are shown in Fig. 12.

Fig. 12 Wiring: 1.5mm2 above fire cable connecting with D1 and D2. 1.0mm2 or above twisted pair connecting with Z1, Z2, K11, K12, K21, and K22. Cross section for earth cable should not be less than 1.0 mm2.
Note: If the detector is mounted in special environment where there are slight dust or where it’s damp, seal the three positions shown in Fig. 2 (two mounting holes and one cable entry) with glass glue or 703 silica gel after the detector is fixed and wiring is finished to ensure the detector work stably.

VI Commissioning

The red LED keeps flashing during commissioning while the yellow and green LED shows various states to indicate the status for each step.

Steps
a Take off the protective membrane carefully on the surface of the reflector and the detector. Do not scratch or contaminate their surfaces.
b Remove the detector’s top cover, and connect to 24VDC power. Two minutes later, put the magnet of commission tool close to the reed switch (around the red LED) of detector’s interface board. There may be two cases with the LEDs:
1 Green LED flashes.
2 Green LED illuminates continuously. Take away the commission tool.
c If green LED flashes, it means the received light is quite weak. Tune the adjusting wheel and rotary rack on the detector to align the light beam until green LED is lit continuously, showing that the light received by the detector is strong. Then stop regulating and enter step d).
If green LED illuminates continuously, it means the received light is quite strong, you can go straight to step d). Note: Observe the detector’s optical pathway carefully to ensure that the received light signal is reflected by the reflector rather than by obscuration’s like wall, ceiling, or pillar. If uncertain, verify by covering the reflector with opaque objects.
d Put on the top cover gently, and screw the two bolts on the cover.
e As the green LED flashes, adjust the position of the detector until it lights green steadily. Then put the magnet of commission tool close to the zone where marked M until yellow LED illuminates constantly, then remove the commission tool quickly and make sure there is no obscuration on the optical pathway. After about 10 seconds, if yellow LED and green LED don’t illuminate any longer, and red LED flashes periodically, this means the detector is at the best position and has entered normal monitoring state. The commission is finished. In very rare case, both the yellow and the green LED illuminate continuously, that means the detector failed to calibrate automatically. Power on reset the detector and go to step b) again.
Fire alarm test Having been monitoring state for 20 seconds, the detector shall give fire alarm and illuminate red LED within 30 seconds as IR Light Filter (please use the part for fire alarm test) is close to the detector while receiving transmitting windows are blocked. Note: IR Light Filter-1 and IR Light Filter-2 are respectively used to undertake alarm tests when sensitivity is level 1 and level 2. The protective membrane of IR Light Filter should be removed for the first use.
Fault test Closing to transmitting or receiving window, an IR Light Filter is used to block the optical path. After that, fault LED of the detector illuminates yellow. Then the LED turns off if the IR Lighter Filter is removed.
Failed Detector During testing, repair failing detectors according to directions in Section IX Troubleshooting and X Maintenance, and test again, if they fail again, return them to factory for repair.

VII Cautions

Power up only after all devices are well connected.
Adjust the detector after installation and maintenance.
Under adjusting condition, both the detector loop and fault output contact transmit fault signal.
The detector base should be fixed directly on solid wall or frame that will not be deformed by vibration. Any deformable material such as paperboard, plastic board, foam board or thin wood board should not be placed between the base and the wall or the bracket.

VIII Operation

The detector can be simply programmed by a hand held programmer. Address, device type and sensitivity level of the detector can be set with a programmer. Open the detector’s top cover, connect I2C cable of hand held programmer (PS/2 cable) with XT3 of the detector. Turn on the power of hand held programmer, input 2, 5, 9 and Function to enter I2C programming mode, the screen shows a “0”. After carrying out operation needed, input 2, 5, 9 and Function again to exit I2C programming mode and return to power-on state

1. Reading Information

The hand held programmer can conveniently get original information like address code, sensitivity level and device type. Refer to details below:

Enter I2C programming mode, the screen shows a “0”.
Press Test, the screen shows the address code of the detector.
Press Up, the screen shows sensitivity level and device type in sequence.
Press Down, the screen shows above contents in opposite way

2. Setting Address Code

The detector offers address code programming for field application. Refer to operation below:

Enter I2C programming code, and the screen is a “0”.
Input address code for programming1242.
Press Program to start programming. “P” will be shown when successful, otherwise an “E” will be shown.
If programming is successful, press Clear, the screen will show a “0”, and you can go on with further operations.
If programming fails, press Clear, the screen will show a “0”, input address code once more.

3. Setting Sensitivity Level

The hand held programmer can set two sensitivity levels to the detector. 2 is sensitivity one, and 3 is sensitivity two, referring to detailed operations below:

Enter I2C programming mode of hand held programmer, and the screen shows a “0”.
Input unlock password, press Clear, and open the lock.
Press Function then the figure “3”, the screen shows a “－”.
Input sensitivity level to be set, and press Program to begin programming. The screen will show a “P” when if programming is successful, otherwise it will show an “E”.
Clear pressed, the screen shows “0”, and you can go on with further operations.

4. Setting the Device Type

You can also set the device type of the detector through a programmer, referring detailed operations below:

Enter I2C mode of the programmer, and the screen shows “0”.
Input unlock password, press Clear, and open the lock.
Press Function and then figure “4”, the screen shows “__”.
Input the device type to be set, press Program to begin programming. “P” will be shown when successful, otherwise “E” will be shown.
Pressing Clear shows “0” on the screen, and you can go on with further operations.

Note: The hand held programmer has lock password to prevent non-special personnel from modifying some important data. “456” is unlocking password; “789” is locking password.

5. Other Functions

Automatic Compensation of Light When dust exists in the working environment of the detector, the emitting window, receiving window and reflector will be covered with dust, which will affect normal operation. In order to solve the problem, we designed the function of automatic compensation of light. When there is dust on windows, the detector can judge the amount of dust, and compensate the received signal through internal program and circuit to ensure the detector can continue to work normally. The detector gives fault signal when dust on the lens and reflector surface reaches a certain level and light compensation reaches the limit for the detector to work normally.
Self-diagnosis on Optical Signal The detector has functions of checking emitting, receiving and amplifying circuit. When there is fault with these three parts of circuit during operation, the detector will generate fault information.

IX Troubleshooting

Common problems and repair methods are as shown in Table 1.

X Maintenance

If the detector gives fault signal after working for a long time, first check whether the detector is damaged or not, and make sure that it is fixed to the wall or other fittings. Then check whether it is the accumulating dust and positional excursion, causing compensation fault, then consider other types of fault.
If emitting window, receiving window and reflector surface are found contaminated, clean them with soft cloth and alcohol (avoid scraping). Never use water or other chemicals. Commission the detector again after cleaning and make it in monitoring state.
The detector is fire protection product, whose operation must be well recorded by the personnel on duty and shift.
Personnel on duty should be familiar with the functions and operation process of the device to avoid mis-operation.
Test alarm function once half a year.

XI Accessories

Accessories provided with the detector are as follows:
Four plastic expansion bolts.
One bracket.
Two M4×10 cross recessed pan head screws.
Two IR Light Filter.
Six 4 flat washers.
One commission tool.

XII WEEE Information

2012/19/EU (WEEE directive): Products marked with this symbol cannot be disposed of as unsorted municipal waste in the European Union. For proper recycling, return this product to your local supplier upon the purchase of equivalent new equipment, or dispose of it at designated collection points.

Appendix 1 Warnings

Limitations of Smoke Detector
The smoke detector is designed for triggering and initiating emergency fire equipment’s, but it only functions when matching with other equipment’s. Installation of this smoke detector must conform to electrical codes and standards in your country.
The smoke detector cannot work without power. It cannot work if power is cut off for any reason.

The smoke detector may not sense fire that where smoke cannot reach it, such as in chimneys, in walls, on roofs, or on the other side of closed doors.

The detector also may not sense a fire on another level of a building. Therefore, detectors should be placed on every level of a building.

All types of smoke detector have limitations. Because fires develop in different ways and are often unpredictable in their growth, it is impossible to predict which type of detector will provide the earliest warning. No types of smoke detector can sense every kind of fire every time. Generally speaking, detectors may not warn you about fires caused by insufficient safety measures, violent explosions, leaking gas, improper storage of flammable materials like diluents and other safety hazards, arson or children playing with fire. The alarm of a smoke detector used in high velocity environment will be delayed due to dilution of smoke by frequent and fast airflow. What’s more, the smoke detector has to be maintained frequently because there will be more dust contamination.
The smoke detector cannot last forever. In order to keep the detector working in good condition, please maintain the equipment continuously according to recommendations from manufacturers and relative nation codes and laws. Take specific maintenance measures on the basis of different environments. The smoke detector contains electronic parts. Even though it’s made to last for a long period of time, any of these parts could fail at any time. Therefore, test your smoke detector at least every half-year according to national codes or laws. Any smoke detectors, fire alarm devices or any other components of the system must be repaired or replaced as long as they fail.

Appendix 2 Warranty

GST warrants that the product will be free from defects in design, materials and workmanship during the warranty period. This warranty shall not apply to any product that is found to have been improperly installed or used in any way not in accordance with the instructions supplied with the product. Anybody, including the agents, distributors or employees, is not in the position to amend the contents of this warranty. Please contact your local distributor for products not covered by this warranty.

Gulf Security Technology Co., Ltd.
No. 80, Changjiang East Road, QETDZ, Qinhuangdao, Hebei, P. R. China 066004
Tel: +86 (0) 335 8502434
Fax: +86 (0) 335 8502532
service.gst@fs.utc.com
www.gst.com.cn