EKHO EK-WL8-OV Operating and maintenance instructions

EK-WL8-OV/AU
WIRELESS OPTICAL SMOKE SENSOR
WITH INTEGRATED VOICE
ANNUNCIATOR AND VISUAL ALARM
DEVICE (VAD)
STFV.425238.037-AU-UM rev. 24
06.11.2020
Page 1from 8
1
GENERAL DESCRIPTION
EK-WL8-OV is a wireless 3-in-1 optical smoke
sensor with an integrated voice annunciator
and visual alarm device (VAD).
The device analyses the protected area for
traces of smoke. An alarm condition is
generated when the smoke level exceeds the
threshold. The alarm signal is relayed to the
Control Panel via the connected
translator/expander modules.
The advanced design of the optical chamber
guarantees a very high level of dust protection,
effectively increasing the time between
maintenance procedures.
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
•Bi-directional wireless communication
•Intelligent algorithms
•Tamper switch
•10-year battery life
•Self-optimizing wireless frequency and amplitude algorithms
•Patented smoke chamber design
•Integral VAD with white LED’s (C-3-2.6)

EK-WL8-OV/AU
WIRELESS OPTICAL SMOKE SENSOR
WITH INTEGRATED VOICE
ANNUNCIATOR AND VISUAL ALARM
DEVICE (VAD)
STFV.425238.037-AU-UM rev. 24
06.11.2020
Page 2from 8
2
GENERAL OVERVIEW
INSTALLATION
In order to install the device, the mounting base
should be fixed to the ceiling, the sensor can
then be inserted into the base by rotating the
sensor until it clips into the base.
Ideally, the device should be installed away 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 a VAD, the device should be installed to comply with the local installation
regulations.
VAD

EK-WL8-OV/AU
WIRELESS OPTICAL SMOKE SENSOR
WITH INTEGRATED VOICE
ANNUNCIATOR AND VISUAL ALARM
DEVICE (VAD)
STFV.425238.037-AU-UM rev. 24
06.11.2020
Page 3from 8
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 messages 2 and 3*
> 86 dB(A) for message 1
Frequency range
500…3500Hz
Number of messages
up to 3
VAD:
VAD rating
C-3-2.6
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
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
NOTE Check the latest version of the product specification document
STFV.425238.037-E-PS for further data, obtainable from the manufacturer.

EK-WL8-OV/AU
WIRELESS OPTICAL SMOKE SENSOR
WITH INTEGRATED VOICE
ANNUNCIATOR AND VISUAL ALARM
DEVICE (VAD)
STFV.425238.037-AU-UM rev. 24
06.11.2020
Page 4from 8
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
device to the system. The device can also be initialized using the “Ekho Configuration”
software.
INDICATION
The device has a three-color LED which indicates the state according to the following:
LED indication
Device’s state
No indication or green flashes
Standby mode
Yellow flashes every 4 seconds
Fault state –malfunctioning smoke sensor
Red flashes every 2 seconds
Fire alarm
When the device is powered up, an automatic calibration process will begin, this lasts
around one minute and is indicated with a red flashing LED.
SMOKE SENSITIVITY
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
3 sensitivity options are available, these can be selected only by using the translator
menu or the Ekho configurator software (setting via the control panel will have no
affect and sensor will remain in the selected mode).
NOTE When the device is powered up, an automatic calibration process will begin,
this lasts around one minute and is indicated with a red flashing LED.

EK-WL8-OV/AU
WIRELESS OPTICAL SMOKE SENSOR
WITH INTEGRATED VOICE
ANNUNCIATOR AND VISUAL ALARM
DEVICE (VAD)
STFV.425238.037-AU-UM rev. 24
06.11.2020
Page 5from 8
5
TESTING
An alarm test can be performed with a magnet by
placing it onto the outside of the sensor (opposite
side to the base alignment marks) the sensor
should take around 1 second to activate.
A suitable smoke test tool can also be used,
please follow the instructions to apply smoke to
the sensor in the correct way.
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 “Ekho Configuration” software.
By analyzing the voltage or dust levels, you can manage maintenance procedures
and predict when you will have to replace the batteries or clean the smoke sensors.
Please refer to the software manual for full instructions on how to use the program for
system maintenance.
SOUNDER
The EK-WL8-OV sounder can produce three messages (only 1 message can be
played at a time).
For successful operation it is necessary that the message number set in the translator.

EK-WL8-OV/AU
WIRELESS OPTICAL SMOKE SENSOR
WITH INTEGRATED VOICE
ANNUNCIATOR AND VISUAL ALARM
DEVICE (VAD)
STFV.425238.037-AU-UM rev. 24
06.11.2020
Page 6from 8
6
Mess.
Pattern
1*
925 Hz: 250 ms / 628 Hz: 250 ms
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
* - only messages 2 and 3 approved according to EN54-3
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 the special "OrpheyRLib"
utility from the "Ekho Configuration” software and special tool (Programmer-PRO
device, see STFV.425238.037-AU-D5 EK-WL8-OV/AU).
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.

EK-WL8-OV/AU
WIRELESS OPTICAL SMOKE SENSOR
WITH INTEGRATED VOICE
ANNUNCIATOR AND VISUAL ALARM
DEVICE (VAD)
STFV.425238.037-AU-UM rev. 24
06.11.2020
Page 7from 8
7
WARRANTY
All devices are covered by a 3 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 sensor 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 sensor into the base.
e. Test the sensor in accordance with the manufacturer’s instructions.
It is recommended to change both batteries after 10 years of operation regardless 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.
CAUTION
- Replacement of a batteries must be of the same type.
- 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 can result in
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 SENSOR
WITH INTEGRATED VOICE
ANNUNCIATOR AND VISUAL ALARM
DEVICE (VAD)
STFV.425238.037-AU-UM rev. 24
06.11.2020
Page 8from 8
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 for messages 2 and 3
Horizontal and vertical plane
15°
83
45°
88
75°
91
105°
91
135°
89
165°
90