Teletek electronics Natron WSS User manual

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ATTENTION: Read carefully this installation Instructions before installing the device!
This manual is subject to change without notice!
1. General Description
Natron WSS is a wireless addressable fire alarm sounder with strobe, designed for operation with Natron series
wireless expander modules*. The fire sounder is equipped with 360˚visible strobe LED indication and a built-in
sounder for signalization in case for announcing of events –fire alarm and finding the place of installation. The
operation of the strobe and sounder is programmed from the sounder’s menus (addressable panel or expander
module). Natron WSS is a VAD (Visual Alarm Device) compatible with a deep wireless fire base for wall
mounting. For prevention of unauthorized disassembling or removing, the sounder can be locked to the fire base.
The fire sounder is equipped also with a tamper switch for self-protection of the box. Natron WSS is designed for
indoor installation.
* Refer to the installation manuals of Natron WE-C, Natron WE-A and Natron WE-A/C wireless expander modules for detailed
information about the programming menus and other details.
2. Technical Specifications
Communication range with expander module ...................1500m
Battery power supply..........................................................4 x CR123A 3V
Battery life...........................................................................~8 years
Radio frequency .................................................................868MHz
Communication type...........................................................Bidirectional
Communication Protocol....................................................NATRON TTE
Radio signal modulation type.............................................GFSK
Number of frequency channels ..........................................6 pair channels
Radiated power ..................................................................≤ 20 mW
Receiver category (EN300-220-1) .....................................1.5
Trace attenuation (during the installation)..........................≥ -90dBm
Test transmission message period ....................................300s
Number of tone types (selectable from panel/module)......32
Power volume (main tone type 27):
- Low volume..............................................................~80dB (A) ±6dB@1m
- High volume .............................................................~92dB (A) ±5dB@1m
Power volume (other tone type):
- Low volume..............................................................~75-85dB ±3dB@1m
- High volume .............................................................~80-95dB ±3dB@1m
Operation temperature .......................................................-10°C to +55°C
Related humidity resistance (no condensation).................(93±3)% @ 40°С
Enclosure box type, color...................................................SAN, white transparent
Dimensions (including base)..............................................Ø116x90mm
Protection ...........................................................................IP31
Weight (including base and batteries)................................372g
Mounting.............................................................................Wall, VAD device, Indoor use
Standards ...........................................................................EN 54-3; EN 54-23; EN 54-25
Natron WSS
Wireless addressable
fire alarm sounder and
strobe
Teletek Electronics JSC
Address: 2 Iliyansko Shose Str,
1220 Sofia, Bulgaria
23
2918
DoP No: 223
EN 54-3:2001+A2:2006
EN 54-23:2010
EN 54-25:2008
Type A; Open class
A-weighted sound level
diagram

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3. Installation Place and Mounting
Attention:
For optimum operation,
plan to ensure at least
2m distance between two
Natron expander
modules and the same
minimal distance
between each device and
the expander module.
Wireless fire base –Dimensions and mounting
Dimensions of Natron WSS –
Wireless fire base and sounder
Disassembling
Locking the sounder to the base
Assembling
Unlocking the sounder
from the base

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4. PCB Elements
The PCB of Natron WSS is factory mounted and is accessible after disassembling the sounder from the wireless
fire base –see item 3.
1 –Enroll button. The button is used for the following
actions:
- Enrolling the sounder to the expander module.
- Checking the signal strength.
- Reset the sounder.
2 –Power Batteries CR123A 3V
Attention: Use only batteries from the same type!
3 –Bi-color operation LED (green/red). The LED is used
for following the actions during enrollment, reset and
checking the signal strength.
4 –Tamper switch
5. Description of Tone Types
Natron WSS supports 32 different alarm tone types. The tone type is set from the programming menus of the
expander module (conventional fire alarm systems) or programming the sounders mode in the menus of the
addressable fire alarm panel. The sound volume level varies with the tone type selected.
The main tone type of Natron WSS is 27.
Tone
Tone Type
Tone Description/Application
1
970Hz
2
800Hz/970Hz @ 2Hz
3
800Hz - 970Hz @ 1Hz
4
970Hz 1s OFF/1s ON
5
970Hz, 0.5s/ 630Hz, 0.5s
6
554Hz, 0.1s/ 440Hz, 0.4s (AFNOR NF S 32 001)
7
500 - 1200Hz, 3.5s/ 0.5s OFF (NEN 2575:2000)
8
420Hz 0.625s ON/0.625s OFF
(Australia AS1670 Alert tone)
9
500 - 1200Hz, 0.5s/ 0.5s OFF x 3/1.5s OFF
(AS1670 Evacuation)
10
550Hz/440Hz @ 0.5Hz
11
970Hz, 0.5s ON/0.5s OFF x 3/ 1.5s OFF (ISO 8201)
12
2850Hz, 0.5s ON/0.5s OFF x 3/1.5s OFF (ISO 8201)
13
1200Hz - 500Hz @ 1Hz (DIN 33 404)
14
400Hz
15
550Hz, 0.7s/1000Hz, 0.33s
6. Enrolling to Expander Module
1. Remove the wireless fire base to access the PCB with the batteries compartment. If the device is not new,
perform reset as described in item 7.
2. Enter in programming mode of the Natron expander module. Select ADD DEVICE menu and press ENTER
button. A list with already enrolled devices is shown on the screen with an order number and type of the device.
3. Scroll down to find a free address to enroll the sounder. Every free address is labeled as EMPTY.
4. Press ENTER button. Message SEARCHING >>> (arrows are blinking) appears on the screen showing that
the module is scanning for signals from a wireless device in its covering range.
Note: If there is no signal from the device in 2-minute period, the expander module will exit automatically the
programming mode.
5. Power on the sounder. If the device is new just remove the protective folio from the batteries –the
enrolling process starts automatically. If the device is powered and reset - single press the ENROLL
button. The operation LED (item 4, position 3) starts flashing in red.
6. In case of successful enrolment, the operation LED flashes 3 times in green and message DONE appears for a
while on the screen of the module. The sounder is added to the list as WSS type.
7. Test the signal strength between the sounder and the expander module. Single press the ENROLL button and
wait for the operation LED indication:
Tone
Tone Type
Tone Description/Application
17
750Hz
18
2400Hz
19
660Hz
20
660Hz 1.8s ON/1.8s OFF
21
660Hz 0.15s ON/0.15s OFF
22
510Hz, 0.25s/ 610Hz, 0.25s
23
800/1000Hz 0.5s each (1Hz)
24
250Hz - 1200Hz @ 12Hz
25
500Hz - 1200Hz @ 0.33Hz
26
2400Hz - 2900Hz @ 9Hz
27
2400Hz - 2900Hz @ 3Hz
2500Hz (main sound frequency)
28
800Hz - 970Hz @ 100Hz
29
800Hz - 970Hz @ 9Hz
30
800Hz - 970Hz @ 3Hz
31
800Hz, 0.25s ON/1s OFF
32
600Hz –1100Hz, 2.6s/0.4s OFF

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- 3 flashes in green –excellent signal strength;
- 3 flashes in orange –good signal strength, but, if possible, change the place of installation;
- 3 flashes in red –poor signal strength and it is obligatory to change the place of installation.
You can also check the signal quality for the device in DEVICE RSSI menu of the module - item 8.
8. If the signal quality and strength are excellent or good, you can proceed with mounting.
9. Use appropriate fixing elements to mount the wireless fire base to the place of installation. Follow the
instructions in item 3 to lock the sounder to the fire base if this is needed.
10. Place the sounder in the base as observe the two short marks to coincide. Move the sounder’s body up to
hide the marks. Rotate the sounder on clock side until a click is heard.
7. Reset of the Sounder
If the sounder is not new, you have to reset it before enrolment to the expander module. Check the batteries
condition. It is recommended to change all of them with a brand new.
To reset the Natron WSS, power it on with the batteries and after that press and hold ENROLL button for 5-7
seconds. The reset is complete when the operation LED flashes 3 times in green, followed from 1 long flash in
red and 1 long flash in green. Next pressing of ENROLL button will start the enrolment procedure to expander
module.
8. Checking the Signal Quality (RSSI)
The quality of the signal between the sounder and the expander module is checked at DEVICE RSSI menu of the
module. The signal quality is assessed in [dB].
1. Enter in programming mode of the module. Scroll to menu DEVICE RSSI and press ENTER button. A list with
present enrolled devices is shown on the screen with an order number and type of the device.
2. Find in the list the sounder number.
3. Press ENTER button. Refer to the table below to read the signal quality on the screen:
Signal quality
Level RSSI
Description
< -90 dB
Loss
Bad signal or no connection.
-90 ÷ -70 dB
Good
The signal is satisfactory but needs improvement. It is recommended to change the
installation place of the device.
> -70 dB
Excellent
Excellent signal.
4. You can exit the menu at any time with pressing CANCEL button.
9. Finding the Sounder Installation Place and Test
This is a procedure that helps the engineer to find the exact location of every wireless device in the fire
installation and test the connection with module.
1. Enter in programming mode of the module. Scroll to menu FIND DEVICE and press ENTER button. A list with
present enrolled devices is shown on the screen with an order number and type of the device.
2. Find in the list the sounder number which you want to locate in the fire installation.
3. Press ENTER button. Message FINDING >>> (arrows are blinking) appears on the screen showing that the
module is scanning for signals from the selected wireless device. The message will change for a while to
FINDING DONE in case of success.
4. The sounder will respond with active strobe and short sound signals.
5. The module will exit automatically the finding procedure after 70-80 seconds. You can also stop the procedure
at any time with pressing CANCEL button.
10. Replacing Batteries
It is recommended to change the batteries after 8 years of operation regardless of their indicated discharge level.
Always use only batteries approved by the manufacturer - Panasonic CR123A 3V or other with similar
characteristics. Attention: After indication from the panel/expander module for low battery of a device, the user/
installer must replace the discharged batteries with new within one month. The remaining shelf time of the new
batteries must not be less than 6 years.
1. Disable the sounder operation to avoid fault messages.
2. Disassemble the sounder as described in item 3.
3. Remove the old batteries and place the new as observe the +/- polarity.
4. Assemble the sounder back in place.
5. Enable the sounder operation.
6. Check the signal quality in DEVICE RSSI menu of the expander module.
7. Test the sounder operability.
CAUTION: Do not expose used batteries to fire, hot ovens, or mechanical crushing/cutting as this can result in an explosion.
Exposing batteries to extremely high environmental temperatures or low air pressure can result in explosion or the leakage of
flammable liquid or gas.
DISPOSAL: Follow local regulations regarding disposal of the batteries.
18021226, RevB, 07/2023