Comet W0710 User manual

www.cometsystem.com
User’s Guide
W0710
W0711
W0741
W3710
W3711
W3721
W3745
W4710
W5714
W7710
Sensor with WiFi communication

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© Copyright: COMET SYSTEM, s.r.o.
Is prohibited to copy and make any changes in this manual, without explicit
agreement of company COMET SYSTEM, s.r.o. All rights reserved.
COMET SYSTEM, s.r.o. makes constant development and improvement of
their products. Manufacturer reserves the right to make technical changes to
the device without previous notice. Misprints reserved.
This is a User’s Guide for a series of products. Not all products support all
features like a different types of physical measurement values. Screenshots
and graphics may to differ according to differences at product and computer
operating system.
Contact the manufacturer of this device:
COMET SYSTEM, s.r.o.
Bezrucova 2901
756 61 Roznov pod Radhostem
Czech Republic
www.cometsystem.com

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Table of contents
INTRODUCTION.................................................................................................5
SAFETY PRECAUTIONS AND PROHIBITED HANDLING..................................8
INSTALLATION...................................................................................................9
Hardware installation..............................................................................9
Provisioning and first setup..................................................................11
FEATURES .......................................................................................................13
LCD display .........................................................................................13
Keyboard .............................................................................................15
WiFi Modes..........................................................................................16
Main page............................................................................................16
MODELS OF WIFI SENSORS...........................................................................18
DEVICE SETUP................................................................................................23
Conventions.........................................................................................23
General settings...................................................................................24
Measurements settings........................................................................27
Channels settings ................................................................................28
Alarms settings ....................................................................................31
Network settings ..................................................................................32
Protocols settings.................................................................................36
Cloud protocol settings.........................................................................41
COMMUNICATION PROTOCOLS ....................................................................44
Modbus TCP........................................................................................44
Cloud protocol –JSON ........................................................................47
JSON and XML via http server.............................................................51
TROUBLESHOOTING.......................................................................................54
Factory defaults ...................................................................................54
Forgotten administrator password........................................................55
How to determine device IP address....................................................55
How to use newly connected Digi probe...............................................55
Error codes at channels.......................................................................55
Warning exclamation mark on LCD......................................................57
Battery symbol at LCD or wrong device time........................................58
Unable to power on device...................................................................58
Device is restarting continuously..........................................................58
Measurement accuracy issue...............................................................58
WiFi network connection problems.......................................................59
WiFi signal strength issues...................................................................59
RECOMMENDATIONS FOR OPERATION AND MAINTENANCE....................61
Operation in application areas..............................................................61
Recommendations for calibration.........................................................62
Recommendations for regular checks..................................................62

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IT security advices ...............................................................................63
Firmware update..................................................................................64
Technical support and service..............................................................64
TECHNICAL SPECIFICATION..........................................................................65
Power supply .......................................................................................65
General parameters.............................................................................65
WiFi radio.............................................................................................65
Communication protocols.....................................................................66
Parameters of inputs............................................................................67
Operating and storage conditions.........................................................74
Mechanical properties..........................................................................75
End of operation...................................................................................75
Declaration of Conformity.....................................................................75
APPENDIX ........................................................................................................76
REVISION HISTORY.........................................................................................84

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Introduction
WiFi sensors are designed for autonomous measurements, processing, and
alarming of the physical quantities. Measurement of temperature, relative
humidity, barometric pressure, CO2 concentration are supported. Inputs and
measurement ranges depends on device model and cannot be changed by
end-user. Device communication is done via WiFi wireless network. Device
needs to be powered from external adapter which is part of shipment.
Key features:
Measurement from external and internal sensors temperature, relative
humidity, barometric pressure, CO2concentration. From relative humidity
values are calculated additional humidity quantities like a dew point.
Monitoring and alarming of the measured values to the pre-set limits. Two
alarm limits are supported for each measured quantity with selectable
direction.
Acoustics and optical LED signalisation of the alarms.
Measured values are shown on a large LCD display with backlight.
Holding of minimum and maximum values from device start-up for each
measured quantity. Minimum and maximum values can be reset by the
end-user manually.
Communication via 2.4 GHz WiFi network. Can be used with wireless
infrastructure which is already available at place of installation.
Device is equipped by USB-C connector which is used for powering of the
device. Same connector can be used for device configuration if needed.
Measured values can be shown on device web pages and can be
transferred into data acquisition system COMET Cloud or COMET
Database.
3rd party data acquisition systems are supported via JSON, XML and
Modbus TCP protocols.
Device has integrated internal non-volatile memory. Memory is used for
recording measured values in case WiFi or internet connection is lost.
Occurrence of alarm states can be reported by the email sent from the
device.
Device configuration via web pages from computer or cell phone. Initial
device provisioning is done via access point mode.
The device delivery includes traceable calibration certificate. Declaration
of metrological traceability of etalons is based on requirements of EN
ISO/IEC 17025 standard.

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Schematic drawing of WiFi sensor:
Dimensions:

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Drawing of WiFi sensor with SMA antenna connector (option Wx7xxQ):
Please see Technical specification for detail information about suitable
antenna for devices with option Wx7xxQ. This antenna is not part of
shipment.
Dimensions for device with option Wx7xxQ:

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Safety precautions and prohibited handling
Please read the following safety precautions carefully before using the
device and keep it in mind during use!
Installation, commissioning, and maintenance must only be carried out by a
qualified person in accordance with applicable regulations and standards.
Legislative conditions. The device includes aradio transmitter operating
in the non-license WiFi band. Used frequency and the transmit power are
specified in the Technical specification. This band and transmit power are
used in the European Union countries. If you are in another location,
please make sure that usage of device is allowed before turning it on.
Electromagnetic interference. Do not use the device in places where
the usage ofWiFi devices is prohibited. Such as near to sensitive medical
devices, on the aircraft or in localities where explosive materials are used.
Operating and storage conditions. Follow the recommended operating
and storage condition as stated in the Technical specification. Do not
expose the device to direct radiation of heat sources and sun. Do not
install the device more than 2 m above the floor to avoid the risk of injury
in case of device fall from high.
Fire and explosion hazard. It is not allowed to use this device within
hazardous areas, especially those endangered by a potential explosion of
combustible gases, vapours, or dust.
Device cover. Never operate the device without the cover.
Aggressive environment. Do not expose this device to aggressive
environment any kind, chemicals, or mechanical shocks. Use soft tissue
for cleaning only. Do not apply solvents or similar aggressive agents.
Failures and servicing. Do not try to repair the device by yourself. Any
repairs may be carried out by suitably instructed service personnel only.
If the device shows signs of unusual behaviour, power off the device
instantly. Contact the distributor from which was device purchased.
Ingress protection. The device has not a protection against the ingress
of water and dust. Do not operate it in unsatisfied conditions.
Serviceability. This device operates a wireless communication in the
unlicensed radio spectrum of the WiFi network. From this reason the
connection cannot be guaranteed under all circumstances. Never rely
merely on the wireless equipment onlyfor a critical communication system
like a rescue systems or safety systems. Bear in mind that redundancy is
essential for systems with high level of the functional safety. See e.g. IEC
61508 for more information.
Recommended accessories. Use accessories recommended by the
manufacturer only.

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Installation
Hardware installation
Select proper location for the device –bear in mind that the
environmental conditions should meet requirement according to
Operating conditions. Do not place device next to sources of
electromagnetic interferences. Thedevice has not a protection againstthe
ingress of water and dust. Do not use device at places where such
conditions can be expected.
Recommended working position –device should be used at
recommended working position. This position is with antenna up.
Test WiFi signal strength at device location –proper signal strength is
essential for device function. Signal strength can be examined by another
WiFi device like a cell phone places at device location. Another way to
determine signal strength is using procedure described at chapter WiFi
connection issues.
Fasten the device –device can be screwed directly to wall or another
solid surface. Do not fasten device to metal object directly. Installation
material like a wall dowels and screws are not part of shipment. Use
appropriate fasten material to mounting device securely. Avoid dropping
of device and potential injury.

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Device can be mounted onto wall by optional holder LP100 –holder
is available as optional accessory. LP100 package contains holder itself,
installation material (wall dowels and screws), lock and keys. For security
reason do not install device to higher position than 2 m above floor.
Mounting cables and probes –connect probes to the device. Please
follow recommended working positions for probes. Do not place probes
together with electric-power distribution cables or devices.
Power on device –connect power supply via USB-C cable (5V DC).
Cable and adapter are part of shipment.