HW Group WLD2 User manual

WLD2 – User manual

HW group
2Safety warning
Safety warning
The device meets the requirements of standards valid in the Czech Republic, has undergone live
testing and is delivered in operational condition. To maintain the device in this condition, it is
necessary to observe the safety and device maintenance requirements set forth below.
If the device is not used in the manner recommended by the manufacturer, the security offered
by the device may be breached!
The power socket or point of disconnecting the device from power supply must be freely accessible!
The device must not be used in particular if:
• It is visible damaged.
• It does not work properly.
• There are loose parts inside the device.
• It was exposed to long-term humidity or got wet.
• It underwent unqualified repair by unauthorised personnel.
• The power adapter or its supply cable are visible damaged.
• If the device is used in a manner other than the designated manner, the protection provided
by the device may be breached.
• The switch or fuse and other power surge protection resources must be part of the overall
construction unit.
The manufacturer is liable for the device only if it is powered by the supplied or approved power source.
Should you have any problems with installation and start-up, you can contact our technical support:
HW group s.r. o.
http://www.hw-group.com
email: [e-mail]
Rumunská 26/122
Prague, 120 00
Phone: [phone]
Before contacting technical support, prepare the precise model of your device (on the manufacturing label
and the firmware version (see below), if you know it.

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Contents
Contents
Safety warning 2
Contents 3
Features 4
Usage examples 4
Basic features 5
Scalability 5
Comparison of HWg-WLD and WLD2 5
Connectors and connections 6
First start-up 7
WWW interface 9
Home tab 9
General Setup tab 10
Security tab 11
WiFi tab 12
Sensors tab 15
Outputs tab 16
E-mail tab 17
SMS tab 18
Alarms tab 19
SNMP tab 20
Time tab 22
Portal tab 23
System tab 25
Technical parameters 27
Physical dimensions 28
WiFi Radio 29
WiFi signal strength 29
Connecting WLD2 to the SensDesk portal 30
Using the mobile phone app 35
Firmware upgrade in WLD2 units 36

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Features
WLD 2 – Quad water leak detector with WiFi and Ethernet
WLD2 is a WiFi / Ethernet water leak detector with support for WWW, SNMP and PoE. To detect
leaking liquids, it uses sensing cables. With braided liquid-absorbing cables, it is possible to
detect even the smallest volumes of liquids, such as condensation from A/C pipes or water
leaks in general – before a critical volume of water, ethylene glycol, or another conductive
liquid forms and damages become costly. In addition to flooding, the detector also detects
disconnected or damaged sensing cable for increased reliability.
Thanks to WiFi connectivity, the WLD2 WiFi water leak detector can be installed in hard-to-
access places and, in case of flooding, send an alert via e-mail, SNMP trap, or – with an external
SMS gateway by HW group – even send a text message or dial a phone number. Of course, in
critical applications, it can also communicate via wired Ethernet and can be powered with PoE.
WLD2 can be connected to the SensDesk portal using the HWg-Push protocol, as well as to
standard monitoring systems thanks to SNMP and SNMP Trap support. Flooding can be also
indicated by switching a remote output (e.g. a relay) over the network (Box-2-Box mode with
aPoseidon2 or Damocles2 unit), independently for each sensing cable.
Compared to HWg-WLD, up to 4 independent detecting cables can be connected to the WLD2
to help locate the leak more accurately.
RACK
1
RACK
2
RACK
3
RACK
4
RACK
5
FREEZER
3
FREEZER
1
AIRCONDITION
1
Terminator
Connection cable
Prolong cable
AIRCONDITION
2
AIRCONDITION
3
FREEZER
2
RACK
6
Detection cable
– max. 85 m
Usage examples
• Water detection under raised floors.
• Leaky pipe detection (cable wrapped along the pipe).
• Protection against floods from skylights – sensing cable routed along the walls.
• Detection of water leaks in drip trays.
• Detection of water leaks under air-conditioning outlets.
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Basic features
Basic features
• Simple installation, support for automatic network configuration via DHCP.
• Intuitive WWW interface for fast and easy installation.
• Ability to communicate over WiFi (external antenna for extended range, support for 2.4GHz,
2.11 b/g/n) and Ethernet at the same time.
• With support for up to 4 sensing cables (each max. 85m), detection capabilities can be scaled
and the source of the leak more easily identified.
• The sensing cable can be fixed using clips or adhesive tape.
• WLD2 signals the following states: OK / Flooded / Sensing cable fault.
• Flooding alerts can be send as a standard e-mail, or as a text message (SMS) through a SMS
gateway available from HW group.
• Detected leaks or WLD sensing cable disconnections can be signaled by activating a relay
output at a Poseidon2 or Damocles2 unit over the Ethernet.
• WLD2 can be easily mounted on a wall or in a 19" cabinet.
• Powered over PoE or from an external adapter.
Scalability
WLD2 supports up to 4 independent sensing cables. This makes it easier to locate the source
of the leak. Each detection circuit can consist of up to 85m of sensing cable + up to 100m of
connecting cable.
Total length max. 185 m
Sensing cable 85 m +connecting cable 100 m
50 m 10 m max. 98 m 2 m 2 m
T – Terminator
The circuit can be extended with
a2-wire connecting cable at any place.
Comparison of HWg-WLD and WLD2
Function HWg-WLD WLD2
WLD circuits 1 4
Ethernet
WiFi
HTTPs
External antenna
TLS
SensDesk support
PoE
Remote outputs 1 4

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Connectors and connections
WLD sensing cable
WLD1 WLD2 WLD3 WLD4
Antenna
Power
5V
Reset
Ethernet
WiFi
Connectors
• Ethernet – for a wired internet connection
in case of LAN operation, or for initial
configuration in case of WiFi operation. Can
be used to power the device via PoE (Power
over Ethernet).
• WLD1 – WLD4 – for connecting up to 4 liquid
sensing cables.
• Power – connector for a 5V power supply if the
device is powered from an external adapter.
LED indicators
• Link – green LED indicates an active network
connection.
• Activity – flashing yellow LED indicates
ongoing communication over the wired
network connection.
• WiFi – blue LED indicates an active connection
to a WiFi Access Point. While establishing
the connection, flashing LED indicates status.
• WLD LED – 4 red LEDs above the connectors
for the sensing cable. When lit, the respective
circuit is in Alarm – liquid is detected or the
cable is disconnected.
Button
• Reset – to reset the device to factory defaults.
1. Turn the device off.
2. Press and hold the button.
3. Turn the device on and hold the button
for another 5 seconds.
4. All LEDs light up in sequence.
5. Turn the device on again, factory defaults
are restored.
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First start-up
First step
Cable connection
• Connect the device to the Ethernet (direct cable to the switch, crossed to PC).
• Connect the power adapter to the grid and connect it to the device power supply connector.
• The green LED in the Power & Mode RJ45 connector will light up.
• If connection to the Ethernet, is functional, the LINK (yellow) LED should light up shortly afterwards
and switch off during data transfer to the Ethernet (Activity signalisation).
• A quickly flashing yellow LINK LED signalises communication with the DHCP server.
Setting of the IP address - HWg-Config
The HWg-Config program is located in the main director on the enclosed CD (version for Windows
and Linux).
The program can be downloaded at www.HW-group.com Software -> HWg-Config.
• Click on the icon to launch the HWg-Config program – the program automatically searches for
connected devices.
• Launch the search by clicking on the Find Devices icon.
• The program searches for devices in your local network. Click on the MAC address of the device
to open the dialogue window for device settings.
1
2
First start-up

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Set device network parameters:
• IP address/HTTP port (80 by standard)
• Your network ask
• IP address of your network gateway
• Device name (optional parameter)
Save the settings by clicking on Apply Changes.
Restore default settings:
• Right-click on the device MAC address. The default
values from the HWg-Config can be restored by
software mode during the first 60 settings after
start-up.
• Press the RESET button, hold it down and
connect the power source. Hold the button down
for another 5 seconds until all the LEDs light up.
Device website
Options of opening the website:
• Enter the device IP address in the browser window.
• Click on the IP address in the HWg-Config program.
• Click on the underlined IP address in the HWg-Config application.
First step
3
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WWW interface
Home tab
Base Information section
• Device Name – the device name serves to distinguish specific devices in larger installations. Can
be set in the General Setup tab.
• Time – current device time. The time can be set automatically from the internet or manually
in the Time tab. In the case of automatic setting, the correct value is the indicator of device
access to the internet.
• Date – current device date. The date can be set automatically from the internet or manually
in the Time tab. In the case of automatic setting, the correct value is the indicator of device
access to the internet.
Sensors
Lists the current values of sensors.
• State – input or sensor state.
• Normal – idle state, all normal.
• Disconnect – the sensing cable is disconnected or damaged.
• Flooded – liquid was detected.
• Name – sensor name for better identification in larger systems. The name can be set in the
Sensors or Digital Input tab.
• Current Value – current value including unit of measure.
WWW interface

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General Setup tab
General section
• Device Name – device name (WLD2), allow you to distinguish individual the device in the network.
• WWW Info Text – text at the foot of the website.
• Temperature Unit – unit for displaying temperature. You can choose between Celsius / Fahrenheit/
Kelvin. The Safe Range values will automatically be converted based on this option.
• Periodic Restart – function to improve device stability in exposed networks allowing regular
automatic restart of the device.
Network section
Only the cable connection parameters (RJ-45) are set here. Wireless connection parameters
are set in the WiFi tab.
• DHCP – permits the function of IP address setting by the DHCP server, if available. Enabling or
disabling DHCP depends on the needs of the user and network administrator.
• IP Address – IP address of the device, allocated by the network administrator.
• Network Mask – network mask, allocated by the network administrator.
• Gateway – IP address of the default gateway, allocated by the network administrator.
• DNS Primary / DNS Secondary – IP address of the DNS server, allocated by the network administrator.
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• HTTP Port – port number on which the built-in WWW server tunes in. A change of the port
number is suitable e.g. for multiple devices accessible from the external network via a router.
Consult the network administrator about potential changes. The default port is 80. You can turn
off HTTP support by setting the port value to 0.
• HTTPS Port – the port number on which the embedded Web server listens for the secure HTTPS
connection. Changing the port number is appropriate, for example, for multiple devices accesses
from the external network via the router. Contact your network administrator for any change. The
default port is 443. You can turn off HTTPS support by setting the port value to 0.
Device Admin section
• Username / Password – username and password to secure access to the device.
Security tab
HTTPS Server Certificate files
Used to manage certificates needed for the HTTPS server. Allows you to upload or delete
apublic key, a private key, or a certificate of the certificate authority (CA) that has issued the
public key certificate.
Generate the SSL key and certificate
Generate a private SSL key and self-signed certificate for closed networks or testing purposes. The
generated certificate is self-signed and will be displayed as untrusted. Please add the certificate
WWW interface

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WiFi tab
When WiFi is off, only the enable option is shown:
All the options are available after enabling:
to the list of exceptions or use a certificate signed by a trusted certification authority. Please
note that the generated data will replace the SSLCertificateFile and the SSLCertificateKeyFile.
Generating the key can take up to 10 minutes. Do not restart the device and do not search for
sensors. Otherwise the key generation will be interrupted.
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WiFi modem state
• Disable – WiFi is disabled.
• Wait for power on – waits for WiFi module when power on.
• Init – initializing of WiFi module.
• Connecting – connecting.
• SSID check – SSID check.
• Connected – connected to selected WiFi network.
• Network WiFi scan – scan of available WiFi networks.
• Wait for scan – waits for Network wifi scan.
Information section
• Current SSID – current name of the network to which the device is connected. If the parameter
is missing, the device is not connected to any WiFi network.
• Current BSSID – current identifier of the WiFi network connection point. If the parameter is missing,
the device is not connected to any WiFi network.
• Current RSSI – relative strength of signal input. The higher the RSSI, the stronger the signal.
• Signal Quality – strength of WiFi signal in % with graphic indicator.
• Current Channel – WiFi channel on which the device communicates. If the parameter is missing,
the device is not connected to any WiFi network.
WiFi Setup section
• WiFi Enable – enable or disable WiFi. By standard, the wireless interface is disabled. Device
restart follows enabling.
• SSID – name of the WiFi network to which should be the device connected. If you do not know
your network name, use the Scan AP function at the bottom of the page.
• Password – secured network password. If you do not know it, contact your network administrator.
• BSSID – identifier of the WiFi network connection point (MAC address of the connection point).
Optional data.
Network section
WiFi network parameters. Only the wireless interface is set here. Cable Ethernet (RJ-45) is set
in the General Setup tab.
• DHCP – permits the function of IP address setting by the DHCP server, if available. Enabling or
disabling DHCP depends on the needs of the user and network administrator.
• IP Address – IP address of the device, allocated by the network administrator.
• Network Mask – network mask, allocated by the network administrator.
• Gateway – IP address of default gateway, allocated by the network administrator.
• DNS Primary / DNS Secondary – IP address of the DNS server, allocated by the network administrator.
WiFi Scan List
• SSID – name of found WiFi network.
• BSSID – connection point identifier (MAC address).
• Channel – WiFi channel on which the connection point operates.
• Security – type of secured WiFi communication.
• Signal – signal level in DB. The higher the value, the better. WARNING, -60 is more than -90! The
highlighted row indicates the currently connected AP.
WWW interface

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Scan AP
Connecting to found WiFi
• Click on the SSID of the found network to prefill WiFi setting and just enter the Password. The
BSSID remains empty. Standard setting. Reconnects automatically if AP is changed.
• Clicking on BSSID will prefill not only the network name (SSID), but also the MAC address of
the specific AP (BSSID). The device then connects to this AP and will not try to reconnect in the
case of aggregated networks.
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Sensor List section *
• State – input or sensor state.
• Normal – idle state, all normal.
• Disconnect – the sensing cable is disconnected or damaged.
• Flooded – liquid was detected.
• ID – sensor ID identical to ID in Poseidon2 and WLD2 units.
• Name – sensor name for better identification in larger systems. The name can be set in the
Sensors tab.
• Current Value – current value including unit of measure.
• Alarm Target – specifies the targets for alarm alerts (SMS + E-mail). Target recipients are defined
at the Alarms tab. The drop-down menu allows selecting an existing set of targets or creating
a new one.
• Alarm Trigger Delay [s] – delays the alarm start alert by a specified time.
• Virtual Outputs – remote output that is switched (closed) whenever a liquid is detected or the
sensing cable is disconnected. Configured at the Outputs tab.
* Sensors in Alarm state are highlighted.
Sensors tab
WWW interface

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Virtual Output List
• Name – name of the output. Shown at the Sensors page in the Virtual Outputs column.
• Value – current state of the output.
• Target address – IP address of the device with the controlled output.
• Port – TCP port where the device with the controlled output listens (usually 80).
• Remote ID – ID of the controlled output at the remote device.
• Authentication – username and passphrase for controlling the outputs, if set at the device.
• Test On a Test off – for testing the settings.
Outputs tab
Defines the parameters of up to 4 remote outputs, usually relays (on Damocles or Poseidon units).
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E-mail Settings
• SMTP Server – IP address or domain address of the SMTP server.
• SMTP Port – port number on which the e-mail server tunes in – 25 by standard.
• Authentication – enable authentication; check if the SMTP server requires authentication.
• Secure TLS mode – check if the SMTP server requires secure communication via SSL/TLS.
• Username – username for SMTP server authentication. If the Authentication field is not checked,
the content of this field is irrelevant.
• Password – password for SMTP server authentication. If the Authentication field is not checked,
the content of this field is irrelevant.
• Importance – sets priority of the e-mail message. Important for filtering and further processing
of alarm messages.
• FROM – sender’s e-mail address, i.e. of the device. The address may be required by the SMTP
servers and can be used to identify the device or to filter and further process alarm messages.
• Subject of e-mail – the field content can be used to identify the device, or for filtering and further
processing of alarm messages.
Email Test Log section
In this section, the SMTP server settings can be tested. Click Test Email to send a test e-mail to the
specified Email address. The Debug log window shows the communication with the SMTP server.
E-mail tab
WWW interface

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SMS tab
With the Wifi turned off, only the power-on option is shown:
Remote SMS gateway
• Enable – turns on the SMS sending function. For sending, the SMS alarm action must be set
at the sensor or input.
• SMS Gateway Address – IP address where “HWg-SMS-GW3” is located through which the device
will send SMS. It can be set including service - typically /service.xml
• Port – the TCP port on which the gateway listens.
• Username – user name for authorization in SMS GW.
• Password – password for authorization in SMS GW.
• SMS + Ring When Alarm – enables sending a SMS and then dialing the number.
SMS Test Log
In this section, the SMS gateway settings can be tested.
• Test SMS – sends a test text message to the specified Phone number.
• Test Call – dials the specified Phone number.
• Debug log window – shows the communication with the SMS gateway.
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Alarms tab
Alarm targets are defined at this tab. Up to 2 sets of targets can be created; each set can contain
up to 2 addresses for e-mail alerts and 2 phone numbers for text message alerts andcalls. These
sets are then assigned to individual sensors and digital inputs. To create aset, click the + button
at the Alarms tab, or select Add new... when editing a sensor oradigital input.
Alarm Target
Set of targets. For clarity, the set can be given a custom name.
• Email list – e-mail addresses of alarm alert recipients. To send e-mails, the SMTP server must
be properly configured at the Email tab.
• Email address – each field may contain only one e-mail address.
• SMS list – phone numbers for text message alarm alerts. To send a message, the SMS gateway
must be properly configured at the SMS tab.
• Phone number – each field may contain only one phone number.
• Call – when checked, the phone number is dialed after the text message is sent (anincoming
text alone can be easy to overlook).
WWW interface

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General SNMP Settings section
• System Name –device name within SNMP.
• System Location – device location within SNMP.
• System Contact – contact of the device administrator within SNMP.
• SNMP port – port number on which communication via SNMP is possible – 161 by standard.
SNMP Access section
• Community – name of SNMP community for access to the device via SNMP. 2 communities can
be defined. For each Community you can define whether it has rights for:
• Read
• Write
SNMP tab
The SNMP tab sets the parameters for communication via SNMP protocol.
WLD2 – User Manual