Synetica enLink OAQ User manual
SYNETICA enLink OAQ Quick Start Guide Rev 1.5
Quick Start Guide
enLink OAQ
Wireless Outdoor Air Quality Monitor
•LoRa long range wireless
•Battery or externally powered
•Built in sensor options for:
•Temperature (°C)
•Humidity (%RH)
•Barometric Pressure (Pa)
•Volatile Organic Compounds (VOC’s)
•EPA Air Quality Index (AQI)
•Carbon Dioxide (CO2 )*
•Sound (dB)*
•Particles PM 1, 2.5, 4, 10*
•Ozone (O3)*
•One additional gas from CH2O (Formaldehyde), CO, NO2, H2S, SO2, O2. *
Temperature
Humidity
VOC’s
Pressure
CO2
Sound
Particles
Ozone
Additional Gases
The enLink OAQ wireless Air Quality Monitor is a precision instrument
which accurately measures up to 10 key environmental parameters
including Temperature, Humidity, VOC’s, Carbon Dioxide, Particulate
Matter (PM1, PM 2.5, PM4 & PM10), EPA AQI (based on O3 and NO2),
Sound Level, Barometric Pressure, Ozone, Formaldehyde, Carbon
Monoxide, Nitrogen Dioxide, Hydrogen Sulphide, Sulphur Dioxide and
Oxygen.
Readings are transmitted to the cloud using long range LoRa wireless,
where the data can be displayed and analysed.
A built in USB port allows all parameters including air quality data,
wireless signal strength and wireless network configuration to be
viewed and set using simple menus via any USB enabled host such as
a PC or Mac.
Features
•
Multiple sensor options*
•
LoRa long range wireless
•
Frequency Range 863-870MHz*
•
Frequency Range 902-928MHz*
•
Up to +18dBm Tx Power
•
Built in USB port for configuration
•
Battery or externally powered
•
CE / FCC compliant
•
RoHS compliant
•
Made in the UK
*Model dependent
SYNETICA enLink OAQ Quick Start Guide Rev 1.5
Introduction
LoRa devices can be configured using OTAA (Over-the-Air-Activation) or ABP (Activation-by-Personalisation).
OTAA is the most secure way to connect a device to the LoRa network. In OTAA, the device performs a Join-procedure with the
network, during which a dynamic DevAddr (device address) is assigned and security keys are negotiated with the device.
ABP allows you to set the DevAddr as well as the security keys in the module. This is simpler than OTAA as there is no Join
procedure, however, it is less secure than OTAA.
This guide will illustrate using OTAA as it is the most secure and flexible method.
The OTAA configuration requires the following parameters to be correctly set:
•DevEUI: End-device Identifier. It is unique for every device and is set at device manufacture.
•AppEUI / JoinEUI*: Application Identifier. Used to identify the end application.
•AppKey: Application key. Used to create the session keys.
*Note: In LoRaWAN 1.1, AppEUI was renamed to JoinEUI.
For many applications Synetica can supply enLink AQ units with the above parameters pre-configured, so providing the LoRa
gateway has the matching keys the join process will happen automatically once the enLink AQ unit is in wireless range and
switched on.
The DevEUI is always set at device manufacture and is unique. The device AppEUI and AppKey can easily be set via the USB
connection if required and the process is detailed later in this document.
SYNETICA enLink OAQ Quick Start Guide Rev 1.5
1. Join enLink devices to the LoRa network
enLink devices in wireless range and with the correct AppEUI and AppKey settings will automatically join the LoRa
network when they are first powered up.
enLink OAQ Unit Label
The unique DevEUI is printed on all enLink devices and is also present in the QR code. The DevEUI can be used to identify
the device once joined to the network.
To power the device ON, first remove the sensor cartridge from the housing by removing the three screws from the
bottom of the unit. Once the sensor cartridge is removed, install batteries and slide the power switch to BATT or apply
external power (12V-24V DC) to the unit and slide the power switch to EXT.
Model:
ENL-OAQ
Air Quality Monitor
Input 12-24Vdc
DevEUI:
00-04-A3-0B-00-04-27-DB
0010123
www.synetica.net
Made in the UK
Serial No:
SYNETICA enLink OAQ Quick Start Guide Rev 1.5
OAQ Sensor cartridge
Once powered ON, the enLink device will send a Join request message to the gateway. The Status LED will blink RED as
shown below whilst the Join process is taking place. Depending on factors such as signal strength, RF interference etc the
Join process may take several seconds to complete.
BATT
EXT
USB Connector
SYNETICA enLink OAQ Quick Start Guide Rev 1.5
Blinking Red LED –Attempting Join
When the device has successfully joined the network the Mode LED will blink GREEN for several seconds to show that the
Join has been completed. The LED’s will then switch off to conserve the batteries.
SYNETICA enLink OAQ Quick Start Guide Rev 1.5
2. Setting / changing the enLink LoRa keys
For many applications, Synetica can supply enLink OAQ units with the LoRa AppEUI and AppKey parameters pre-configured to
your requirements, whereby if the LoRa gateway has matching keys the join process will happen automatically once the enLink
OAQ unit is in wireless range and powered on.
The DevEUI is always set at device manufacture and is unique. The device AppEUI and AppKey can easily be set via the USB
connection as detailed below.
Once the sensor cartridge is removed, connect a micro USB cable to the enLink unit. There are two USB connectors on the enLink
OAQ, so be sure to connect to the correct USB port (USB2) as shown in the image below. The device will attach to a COM port on
your PC.
Configuration USB Port
USB Connector
SYNETICA enLink OAQ Quick Start Guide Rev 1.5
` Using a terminal program (e.g. Teraterm https://ttssh2.osdn.jp/) connect to the COM port used by the enLink device.
To verify which COM port is being used, check the Windows™ Device Manager (In Windows - Click the Start button, type
device manager into the search box and tap Device Manager on the menu.) Expand the Ports (Com & LPT) menu as
shown below.
In your terminal program press the Enter key. An enLink summary screen will appear as shown below. The default
password is the last four digits of the displayed DevEUI, in the screen below this is 1e51.
enLink logon screen
The screen below will show with the enLink Main Menu options. Enter Qto enter the Quick Start Menu.
enLink Main Menu
The Quick Start Menu contains only the parameters that normally need to be configured to setup the device and join the
LoRa network.
From the Quick Start Menu you can change the AppEUI and AppKey.
Quick Start Settings Menu
From the Quick Start Settings Menu, access the AppEUI setting by entering e. Enter the 16 character AppEUI using
numbers and letters a to f. Do not include spaces or any other characters. Pressing Swill enter the default AppEUI which
you can then edit. Press Enter when the key is correctly entered to return to the Quick Start Settings Menu.
SYNETICA enLink OAQ Quick Start Guide Rev 1.5
s
AppEUI setting
From the Quick Start Settings Menu access the AppKey setting by entering k. Enter the 32 character Appkey using
numbers and letters a to f. Do not include spaces or any other characters. Pressing Swill enter the default AppKey which
you can then edit. Press Enter when the key is correctly entered to return to the Quick Start Settings Menu.
AppKey setting
Press Xfrom the Quick Start Settings Menu to return to the enLink Main menu.
The header will show ** Reboot Required ** as shown below. The new key settings will not take effect until the enLink
device is restarted. Enter rto reboot followed by OK. The device will restart with the entered AppEUI and AppKey and
attempt to join the LoRa network.
Reboot Required notification
SYNETICA enLink OAQ Quick Start Guide Rev 1.5
Live Menu
enLink OAQ incorporates a live data screen which shows all readings and device status for easy data validation. To enter
the Live status screen, from the Main Menu enter c for Configure Device followed by dfor Live readings display. A screen
similar to the one below will show. The sensors will vary according to the enLink OAQ model and the installed sensors.
Live Display
Configuration Menu
The enLink OAQ configuration menu allows you to view current sensor readings and also to change various functions of
their behaviour such as calibration data. To enter the Configure Device menu press cfrom the main menu. A screen
similar to the one below will show. The exact parameters shown will vary according to the OAQ model and sensors fitted.
Page 1. Press the enter key to show page 2
SYNETICA enLink OAQ Quick Start Guide Rev 1.5
SYNETICA enLink OAQ Quick Start Guide Rev 1.5
CO2Sensor Auto Calibration Configuration
To view and set CO2sensor calibration information, enter c and the screen below will show.
Please see the table below for information on each menu item.
Menu Item
Description / details
Last/Minimum Reading
Shows the last CO2value read and the minimum CO2value read since the last auto calibration.
Next Auto-Cal due
Shows when the next autocalibration routine will occur
Last Auto-Cal result
Shows the value of the last auto calibration result. Used internally by the sensor.
Calibration Success
This shows the total number of successful auto calibrations since the device was powered up.
Out-of-bounds Ignored
Shows the number of times that auto calibration did not run due to the Out Of Bounds setting.
E - Enable/Disable Auto-Cal
Enables or disables the auto calibration routine.
T - Set Target CO2 Level
This is the known CO2corresponding to the minimum value the sensor has read since power-up or
last calibration. It is normally 'fresh air' or the lowest level when the building is unoccupied
overnight or at weekends. Typically this is 400 ~ 450 ppm.
K - Set to Known CO2 Level
This will re-calibrate the zero point of the sensor to a known gas concentration. The sensor should
be placed in this gas concentration and allowed to stabilise.
This command runs in the background and will take 8 to 10 seconds to complete.
As an example, fresh air is typically around 400 ~ 450 ppm.
O - Out-of-bounds check
The Out-of-bounds value is used to ignore the calibration if the minimum value the sensor has read
is not within a sensible range of the target concentration level.
So, if the target concentration level is 400, the Out-of-bounds value is ±50 and the minimum
reading is 451 (or more), the calibration routine is ignored.
I - Initial Interval
It is possible for the first auto-calibration to take place more quickly than the regular auto-
calibration events. This can be useful to stabilise the readings quickly after installation.
R - Regular Interval
This is the standard calibration interval, it is set to 8 days by default to accommodate a week long
period where the minimum sensed CO2level should have fallen to background levels.
The CO2sensor needs to be exposed to fresh, clean air periodically for the auto calibration to be successful. Most
occupied areas are unoccupied for some time during a week-long period, typically at night, or at the weekend and
therefore the auto calibration runs every 8 days by default. Background CO2levels are typically around 400-450 ppm, if
the background CO2level is known to be a different value then this can be set in the “Set Target CO2Level”parameter
If a unit is placed in an area where the CO2level may not fall below a certain level, e.g. 450ppm, during the calibration
interval then the “Out-of-bounds check” parameter can be set so that the auto calibration routine does not run. As an
example, if an area is continuously occupied for a long period and the minimum CO2reading does not fall below, say
450ppm, then it is undesirable to run the autocalibration routine based on a target of 400ppm. In this case, if the “Set
Target CO2 Level”is set to 400ppm and the “Out-of-bounds check” value is set to +/-50 ppm then the autocalibration
routine will not run unless the minimum read value falls below 451ppm in the interval.
SYNETICA enLink OAQ Quick Start Guide Rev 1.5
Particulate Sensor Configuration
To view and set Particulate sensor information, enter p and the screen below will show.
Menu item fsets the particulate sensor fan run time. The default is 8 seconds and is the recommended setting for most
applications. The fan run time may be extended for certain applications, however this will have an impact on the battery
life of the unit.
The particulate sensor has a self-cleaning function which runs the fan at high speed to clean away any dust build up in the
measurement chamber. By default, this cleaning cycle operates every 7 days but may be changed if required. Reducing
the cleaning interval will have a detrimental effect on battery life.
SYNETICA enLink OAQ Quick Start Guide Rev 1.5
Battery Installation / Replacement
enLink OAQ devices use 4 x SAFT LS14500 AA size 3.6 Volt Lithium Thionyl Chloride (Li-SOCl2) batteries (non-rechargeable) or
direct equivalent.
No other batteries are approved for use in the device.
Lithium Thionyl Chloride batteries have very high energy capacity and must be used and handled with care observing the guidance
below.
WARNING
Risk of death or serious injury from explosion or fire.
•Keep out of sight and reach of children.
•Fire, explosion and burn hazard - do not recharge, short circuit, crush, disassemble, incinerate.
•Due to the high terminal voltage (3.6V), they are not suitable as direct replacements for other battery technologies in the same can sizes.
•When not in use the Batteries must be stored in a non-Hazardous Area.
•Do not change batteries in an explosive gas atmosphere.
•When installing batteries, do not snag the battery terminal on the clip or the battery may be damaged. Do not apply excessive force.
•Do not drop. Dropping the battery may cause damage. If a battery is dropped, do not install the dropped battery into the unit. Dispose of dropped
battery promptly per local regulations or per the battery manufacturer’s recommendations.
Guidance
•Always install the batteries correctly as per instructions taking great care to observe the battery polarity.
•Ensure that the contact points are clean and conductive.
•All batteries must be the same model from the same manufacturer.
•Do not mix old and new batteries or batteries from different manufacturers.
•Do not heat or attempt to recharge the battery.
•Do not dispose of in a fire.
•Only install approved batteries: SAFT LS14500 Lithium Thionyl Chloride AA Battery 3.6 Volt, or direct equivalent.
Safe disposal
•Please recycle responsibly, a wide range of schemes are available.
•Do not dispose of in normal waste or in a fire.
SYNETICA enLink OAQ Quick Start Guide Rev 1.5
OAQ Mounting Details
The OAQ should be fixed to a building wall that faces away from the sun, which is normally on the north side. They should not be
exposed to sunlight. The units are best placed in the middle of the building at least 3 m above the ground and away from any
exhaust ducts or flues.
Mounting guidelines for OAQ Units:
•Do not expose to direct sunlight.
•Do not mount on facades with a lot of ascending heat.
•Do not attach to walls in front of a chimney.
•Do not mount on eaves or a balcony.
•Do not place over windows.
•Do no mount over ventilation shafts.
•Do not paint over sensors.
•Mount sensors in an accessible location to allow easy inspection and maintenance.
The OAQ should be fixed to a wall or bracket using number 8 pan head screws. (4.2mm thread and 8.2mm pan head).
SYNETICA enLink OAQ Quick Start Guide Rev 1.5
Fix the screws to the wall or bracket using suitable pan head screws and then slide the OAQ onto the screws.
Weight (without batteries):.............. 180g
Weight (with batteries): .................. 250g
Technical Support
For technical assistance, please visit the downloads section of our web site at www.synetica.net or email us at
support@synetica.net
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