EKHO EK-WL8-OV/AU User manual

EK-WL8-OV/AU
WIRELESS OPTICAL SMOKE
DETECTOR
WITH BUILD-IN VOICE ANNUNCIATOR
AND VISUAL ALARM DEVICE
STFV.425238.037-AU-UM rev. 23
20.08.2020
Page 1from 9
1
GENERAL DESCRIPTION
EK-WL8-OV/AU is a wireless 3-in-1 device
equipped with an optical smoke detector and a
voice annunciator and visual alarm device
(VAD).
The device analyzes physical factors
associated with fire and the way these factors
change through time. An alarm signal is
generated when the smoke level inside the
optical chamber exceeds a certain threshold.
The signal travels through repeaters to the
translator module, which then informs the main
control panel about the emergency.
The advanced design of the optical chamber guarantees a very high level of dust
protection, effectively increasing the time between maintenance procedures. The
device can also automatically connect to different repeaters which makes the
wireless connection robust and reliable.
The device is supplied with a mounting kit.
The product complies with the requirements of the AS ISO 7240.7, AS ISO
7240.23:2014 and AS ISO 7240.25 standards.
FEATURES
•Adjustable photo sensitivity –low, normal or high
•Bi-directional wireless communication
•Intelligent algorithms
•Sound synchronization with same devices in the system
•Tamper switch
•10-year battery life
•Self-optimizing wireless frequency and amplitude algorithms
•Patented design of the smoke chamber
•Ability to operate in a thread of similar devices
•5-year warranty

EK-WL8-OV/AU
WIRELESS OPTICAL SMOKE
DETECTOR
WITH BUILD-IN VOICE ANNUNCIATOR
AND VISUAL ALARM DEVICE
STFV.425238.037-AU-UM rev. 23
20.08.2020
Page 2from 9
2
GENERAL OVERVIEW
INSTALLATION
In order to install the device on the ceiling, you
need to place cover between ceiling and base and
then fix the sandwich by spax-screws.
Ideally, the device should be installed at a certain
distance from metallic objects, doors, and power
lines, as they can cause the communication
distance to drop. It is also important to avoid
installing the device near electronics and computer
equipment in order to protect it from potential
electromagnetic interference. When using VAD, the device should be installed so
that the visible areas are provided with flashes of the device.
If it is necessary that the device could not be detached from the base without special
tools, it is necessary to tighten the screw in the wireless base.
In order to remove the device from the base, release the screw in the wireless base.
Coverage volume of the device is C-3-2.6.

EK-WL8-OV/AU
WIRELESS OPTICAL SMOKE
DETECTOR
WITH BUILD-IN VOICE ANNUNCIATOR
AND VISUAL ALARM DEVICE
STFV.425238.037-AU-UM rev. 23
20.08.2020
Page 3from 9
3
TECHNICAL SPECIFICATIONS
Communication range with a translator or
expander
1200 m
Radio frequency
918-926 MHz
Modulation type
GFSK
Operating frequency channels
6
Radiated power
Not more than 25 mW
Receiver category (EN300-220-1)
1.5
Sound pressure level at 1m
> 91 dB(A) for all messages*
Frequency range
500…3500Hz
Number of messages
up to 3
VAD:
Ceiling mounted
C-3-2,6 (dia 2,6m, volume 16m3)
Flash color
White
Flash rate
0,5Hz
Light temporal pattern
200msON / 1800ms OFF
Battery life:
Primary battery (type CR123A, 2.75-3.2V)
> 10 years (No activation)
> 7 years (Activation 30 s / week)
Secondary battery (type CR123A, 2.75-3.2V)
> 2 months (after primary battery
low fault)
Dimensions (with the base)
(111x111x74) mm
Weight
215 g
IP rating
IP21С
Max tolerated humidity
95% RH
Operating temperature range
From –10 °C to +55 °C
Case material
FR ABS & Polycarbonate
*see full table at the end of the document

EK-WL8-OV/AU
WIRELESS OPTICAL SMOKE
DETECTOR
WITH BUILD-IN VOICE ANNUNCIATOR
AND VISUAL ALARM DEVICE
STFV.425238.037-AU-UM rev. 23
20.08.2020
Page 4from 9
4
PROGRAMMING
The “Prog." (or "P") button on the device is used for initializing the device in the
system. Please refer to the translator manual for full instructions on how to add a
child device to the system. The device can also be initialized using the “Streletz-
Wizard” software.
INDICATION
The device has a three-color LED which indicates the state according to the
following rules.
LED indication
Device’s state
No indication or rare green flashes
Standby mode
Yellow flashes every 4 seconds
Fault state –malfunctioning smoke sensor
Red flashes every 2 seconds
Fire alarm
When the device power on, it begins an automatic calibration process, which lasts
about a minute or less. This state is indicated with rare flashes of red LED.
SMOKE SENSITIVITY
In order to set smoke sensitivity level, you should do it in translator menu.
Configuration
WL8-TRH
vXX/RFYY
Maintenance
Radio
Start Addr
Signal line
001 wl8-trh
002 wl8-ov
003 wl8-oh
Delete
Init
Info
Edit
Photo
sensitivity
Normal
High
Low
Password
There are three sensitivity levels (High, Normal, Low) in depend on transparent air
inside of room (e.g. dust, vapor). It may help to reduce probability of false alarm.

EK-WL8-OV/AU
WIRELESS OPTICAL SMOKE
DETECTOR
WITH BUILD-IN VOICE ANNUNCIATOR
AND VISUAL ALARM DEVICE
STFV.425238.037-AU-UM rev. 23
20.08.2020
Page 5from 9
5
SYNCHRONIZATION
To indicate the direction of evacuation in the corridors the devices can be combined
into a dynamic evacuation system. In this mode devices are installed one after
another (maximum 16 pcs.). When system gets an activation command from control
panel, the devices start reproducing speech (sound) information, and then, one after
another, sequentially reproduce a short multi-frequency signal together with a light
flash. The traveling light-sound "wave", created in this way, indicates the direction to
a safe escape route.
NOTE After programming or power on the devices or translator it takes about 10
minutes to finish the synchronization.
Sound synchronization with other devices in the system is not worse than 50ms.
TESTING
A test alarm can be activated with a magnet by
holding it for 1 second near the area on the
opposite side of the marks on the detector’s
base.
ANALOG DATA
The device provides the translator module with
analog data about the current smoke level, air
temperature, dust in the chamber as well as voltage levels on its batteries. This
information can be viewed in the “Streletz-Wizard” software.
By analyzing the voltage or dust levels, you can manage your maintenance
procedures and predict when you will have to replace the batteries or clean the
smoke detectors. Please refer to the software manual for full instructions on how to
use the program for system maintenance.

EK-WL8-OV/AU
WIRELESS OPTICAL SMOKE
DETECTOR
WITH BUILD-IN VOICE ANNUNCIATOR
AND VISUAL ALARM DEVICE
STFV.425238.037-AU-UM rev. 23
20.08.2020
Page 6from 9
6
SOUNDER
The EK-WL8-OV/AU sounder may generate three messages.
For normal operation it is necessary that the message number set in the translator
and in the device match.
Mess.
Pattern
1
Pulse signal 2500 Hz (pattern ISO 8201 Evacuate signal)
Phase a: = Sine for 0.5±0.05s
Phase b: = Silence for 0.5±0.05s
Phase c: = Silence for 1.5±0.15s
Total cycle to last 4.0±0.4s
2
Voice message 2 (Fire! Fire! Please leave the building by the nearest exit)
3
Voice message 3 (Fire! Fire! Please leave the building by the central exit)
Total duration of all messages up to 20 sec
Voice sounders sequence and timing:
Sequence step
Duration
a) attention-drawing signal
2,5 s
b) silence
0,75 s
c) voice message (for message 2 and 3)
3,9 s
d) silence
0,85 s
NOTE All voice messages may be rerecorded by using "OrpheyRLib" special utility
from "Streletz-Wizard" software and special tool (Programmer-PRO device, see
STFV.425238.037-D5 EK-WL8-OV).

EK-WL8-OV/AU
WIRELESS OPTICAL SMOKE
DETECTOR
WITH BUILD-IN VOICE ANNUNCIATOR
AND VISUAL ALARM DEVICE
STFV.425238.037-AU-UM rev. 23
20.08.2020
Page 7from 9
7
WARNINGS & LIMITATIONS
Devices use high quality electronic components and plastic materials that are highly
resistant to environmental deterioration. However, after 10 years continuous
operation it is advisable to replace them to reduce the risk of reduced performance
caused by external factors. Ensure the devices are only used with compatible
control panels. Detection systems must be checked, serviced and maintained on a
regular basis to confirm correct operation.
Refer to and follow National Codes of Practice and other internationally recognized
fire engineering standards. Appropriate Risk Assessment should be carried out
initially to determine correct design criteria and updated periodically.
WARRANTY
All devices are covered by a 5-year limited warranty (does not apply to batteries).
The warranty is voided by mechanical or electrical damage caused by incorrect
handling or usage. Product should be returned via an authorized supplier for repair
or replacement along with full information on the identified problem.
BATTERY REPLACEMENT
When a battery requires replacement, both batteries must be changed
together.
a. Remove the detector from the base.
b. Clip off the battery cover and remove the batteries.
c. Insert the new batteries as detailed in the installation manual above –take
care to observe + / - polarity.
d. Re-fit the battery cover and re-insert the detector into the base.
e. Test the detector in accordance with the manufacturer’s instructions.
It is recommended to change both batteries after 10 years of operation despite of
their indicated discharge level.
To replace the batteries, use Panasonic CR123A (primary and secondary batteries)
or other with similar characteristics. The batteries must meet the following
standards: UL 1642 lithium batteries, UL certified at www.ul.com or IEC 60086-4
Primary batteries, Part 4: Safety of lithium batteries.
The remaining shelf time of the new batteries must be not less than 8 years.
Failure to observe these instructions will void the device warranty and any liabilities.

EK-WL8-OV/AU
WIRELESS OPTICAL SMOKE
DETECTOR
WITH BUILD-IN VOICE ANNUNCIATOR
AND VISUAL ALARM DEVICE
STFV.425238.037-AU-UM rev. 23
20.08.2020
Page 8from 9
8
CAUTION
- Replacement of a battery with an incorrect type can defeat a safeguard (for
example, in the case of some lithium battery types).
- Disposal of a battery into fire or a hot oven, or mechanically crushing or cutting
of a battery can result in an explosion.
- Leaving a battery in an extremely high temperature surrounding environment
can result in an explosion or the leakage of flammable liquid or gas.
- A battery subjected to extremely low air pressure may result in an explosion or
the leakage of flammable liquid or gas.
DISPOSAL
- Follow local regulations regarding disposal of the batteries.

EK-WL8-OV/AU
WIRELESS OPTICAL SMOKE
DETECTOR
WITH BUILD-IN VOICE ANNUNCIATOR
AND VISUAL ALARM DEVICE
STFV.425238.037-AU-UM rev. 23
20.08.2020
Page 9from 9
SAI Global ABN No
Lic SMK 41078 67 153 750 648
Hochiki Australia Pty Ltd
Block Y, Unit 1 Regents Park Estate
391 Park Rd, Regents Park
NSW 2143, Australia
Telephone: [phone]
Web: www.hochikiaustralia.com
Email: [e-mail]
Angle
Minimal Sound pressure level, dB(A) for all
supply voltages at 1 m
Horizontal and vertical plane
15°
83
45°
88
75°
91
105°
91
135°
89
165°
90