Nordic Propeye OY1500 LoRaWAN Radon Gas Sensor User Manual
- June 9, 2024
- Nordic Propeye
Table of Contents
Propeye OY1500 LoRaWAN Radon Gas Sensor
User Manual
OY1500 LoRaWAN Radon Gas Sensor
version 1.0 January 24, 2023
support@propeye.se
Disclaimer
This document represents information on products at the time of publication
and is subject to change without prior notice due to product improvements or
other reasons. Nordic Propeye makes no warranties based on the accuracy or
completeness of the contents of this document and reserves the right to make
changes to specifications and product descriptions at any time without notice.
Nordic Propeye reserves all rights to this document and the information
contained herein.
1.1 Technical support
Please visit www.nordicpropeye.com for
additional information, or contact
support@propeye.se
Warnings
The following safety precautions must be observed during all phases of the
operation, usage, service or repair of this Nordic Propeye product.
- Read the product manual.
- Do not modify the product.
- The product should not be exposed to extreme heat or open flame.
- The device must not be exposed to harsh chemical agents or solvents.
- The labelling of the product may not be changed, removed or made unrecognizable.
Environmental
**** This symbol on the product or on its packaging indicates that this product must not be disposed of with your other household waste. Instead, it is your responsibility to dispose of your waste by taking it to a collection point designated for the recycling of electrical and electronic appliances. Separate collection and recycling of your waste at the time of disposal will contribute to conserving natural resources and guarantee recycling that respects the environment and human health. For further information concerning your nearest recycling center, please contact your nearest local authority/town hall offices, your household waste collection company or the shop where you bought the product.
Product Description
The OY1500 LoRaWAN Radon gas sensor is designed to measure radon gas,
temperature, humidity and pressure. It also has an accelerometer to detect
movement of the device. The device is designed to operate indoors powered by
cable or with a battery life length of 60 days, with rechargeable batteries.
It reports every 10 minutes, allowing for quick adjustments of ventilation
systems when radon levels get too high.
The device uses a semiconductor detector to detect energy from alpha particle
which decays from radon particles. The detector is capsulated in a high
voltage chamber which forces the charged radon daughter particles upon the
semiconductor area in the bottom of the decay chamber. The decay energy is
measured when an alpha particle hits the detector surface. The number of
detected decayed particles for a set time period is stored internally in the
device as an energy spectrum. This makes it possible to distinguish between
different decay types, since all alpha particles have a different decay
energy. SPIRIT detects alpha decay from Rn-222, Po-214, Po-218 and Po-210.
Instrument operation
5.1 LoRaWAN Configuration
Configuration on the network server is done with AppEUI:
70-B3-D5-D7-2F-F8-18-00 (a.k.a. JoinEUI)
It is possible to order a batch of devices configured with a customer unique
AppEUI from the Nordic Propeye OUI range.
The device is configured with device unique DevEUI and AppKey. The DevEUI is
printed on device box and the AppKey is distributed by the sales team. The
device is default configured for OTAA provisioning. Contact the Nordic Propeye
team for ABP configuration.
The device follows the LoRaWAN standard related Join configuration parameters,
such as RX1 and RX2 windows, RX2 downlink frequency etc.
The default setting is ADR enabled.
If you are not experienced with LoRaWAN, contact
support@propeye.se to get started.
5.2 Start and stop of measurement
The instrument is started and stopped using the power-button on the device.
The button must be pressed for three seconds until the measuring LED lights up
in blue, then release. The instrument starts measuring immediately when the it
is started.
5.3 Measure series
Each time the device is started with the power button, a new measure series is
started. This can be used to distinguish between different measurement
locations. When retrieving and analyzing the data, it will be grouped by
measurement series.
5.4 LED indicators
The device has three status-leds which will light upp each time the status
button is pressed.
5.4.1 Battery indicator
Indicates battery level. The LED is flashing when the battery of the device is
charging.
5.4.2 Network indicator
Indicates network status. It usually takes a few seconds for the device to
connect to LoRanetwork if it is available.
Note: once the device is connected, a network connection check is only
performed every few hours. This means that if the device is losing connection
after it has been successfully connected, it might still indicate as connected
until a network check is performed by the device.
If the device is moved to a new location and you are unsure about the network
status, we recommend to reconnect to the LoRa network by pressing and holding
down power and status button. By doing so, you will get an immediate up-to-
date indication on the device LED if it is connected or not.
5.4.3 Measurement indicator
Indicates if a radon measurement is active or not.
5.5 Buttons
5.5.1 Power button
Requires to be pressed for three seconds. Turns on and off the device.
5.5.2 Status button
A simple press turns on the status led indicators
5.5.3 Combinations
By holding both status- and power button for three seconds when turning off
the device, the device will also disconnect from the LoRa network. Can be used
to save power when storing the device, or to force a reconnect to the LoRa
network.
5.6 Battery and charging
The battery can be charged using micro usb. It is recommended to charge the
battery when the battery indicator is red.
If required, the device can also be supplied with 10-28V AC/DC. See section
6.3.3.
Instrument installations
6.1 Wall mount
The instrument comes with a wall mount. The device can easily be installed
with a snap on mount to the wall. Use the supplied snap on bracket and mount
it to the wall using four screws.
6.2 Lock the device
The device can be locked using a standard locking cable.
6.3 Powering the device
6.3.1 Battery
The device has a-built-in battery (3.7V Li-ion) which is used to power the
device. When the battery status indicator is red, it is time to charge the
device.
6.3.2 Micro-USB
The device can be charged using the supplied micro usb cable. The device is
fully charged when the battery status led is green and is no longer flashing.
6.3.3 10-28V AC/DC
If a more permanent solution is required, the device can be supplied with
10-28V AC/DC. To do installation, the encapsulation lid first needs to be
removed. Remove the four screws on the back of device and install the power
cable in the socket on circuit board. See figure to the right.
Instrument technical details
7.1.1 Technical specification
| Measurement principle | Semiconductor detector with alpha spectroscopy |
|---|---|
| Measurement range | 0 – 100.000 Bq/m3 |
| Measurement uncertainty | <15% after 6h at 200Bq/m3 |
| Minimum Detectable activity | 25Bq/m3at 1 hour integration time |
| Connectivity | Wireless data transfer LoRaWAN |
| Temperature range | -10ºC – 60ºC |
| Humidity range | 0-95% |
| Usage height above sea level | 0 – 2000m |
| Power connection | 5V Micro USB or 10-28V AC/DC |
| Battery time | >60 days |
| Weight | 360g |
7.1.2 Transfer of data
The OY1500 LoRaWAN Radon gas sensor transfers data wirelessly using the IoT
protocol LoRaWAN. This is the only way to transfer data from the device. When
the device is connected to a LoRaWAN network, the device will transfer data
every 10-minutes.
7.1.3 Resending of lost data packages
Data packages sent from the device can be lost in the transmission. This can
be due to multiple reasons, but the most common one is that the device is too
far away from a gateway, or that the device has been moved to a new location
and the network signal strength modulation has not adjusted the signal
strength yet.
For data packages that are lost, the OY1500 features automatic resending of
them. Each time a data packet is successfully received to the server, a check
is performed to see if all previous data packages have been received correctly
(each data packet has a sequence number). If not, a request queue is
initiated. The request queue will prioritize the most “important and recent”
packages first. It is important to retrieve the lost data packages in order to
correctly calculate the radon values.
Note: Resending of packages might take some time. Approximately 8 data
packages can be resent for every 10 minutes. Second note: Not all packages are
resent. The network will only request data packages with a minimum time
distance between packages of 1 hour. This means that the time resolution of
each data point will be 1 hour for resent packages, instead of 10 minutes as
for “real-time” streamed data packages.
Important! In order for the device to be able to transfer “lost” data
packages, the device needs to be in measuring mode and not turned off.
7.2 Processing of data
Post-processing of the raw sensor data is done by Radonova, via Nordic
Propeye’s application server. It converts the raw sensor data to an actual
radon level value presented in Bq/m3. The unique ‘smart’-algorithm switches
between different integration periods by analyzing the energy decay spectra.
For example, if the radon level is analyzed as stable, a longer integration
period is used in order to get a more accurate radon value with lower error.
If rapid changes in the radon level are detected (for example due to the start
of a ventilation system), a shorter integration period is used. The
integration period varies from 1h-3h.
Factory calibration is always carried out for each device. The calibration
data is stored on the server and is compensated for in the post-processing of
the data. Compensation for climate data from the sensors on the device is also
done in the post-processing. Postprocessing is always done in real time. As
soon as new sensor data is sent from the device, post processing is carried
out.
7.2.1 Connection to Nordic Propeye’s application server
Connection to Nordic Propeye’s application server is done with an API by MQTT.
In order to set up your connection to Nordic Propeye’s application server,
please contact support@propeye.se.
7.3 Calibration
It is recommended to let the device be calibrated every year. However,
requirements of calibrations might differ between authorities in different
countries. To learn more about how you can let your device get calibrated,
reach out to support@propeye.se.
EC DECLARATION OF CONFORMITY
certify that the design and manufacturing of this product
WIRELESS TEMPERATURE SENSOR / FUNK-TEMPERATURSENSOR /
TRÅDLÖS TEMPERATUR SENSOR / TRÅDØS TEMPERATUR SENSOR /
DRAADLOZE TEMPERATUURSENSOR
OY1110 EU868
conforms to the following directives and standards
The Radio Equipment Directive (2014/53/EU),
EN 300 220-1 V2.4.1, EN 300220-2 V2.4.1,
EN 301 489-1 V1.9.2, EN 301 489-3 V2.1.1,
EN 60950-1:2006+A11+A1+A12+A2
EN 62479:2010
RoHS Directive 2011/65/EU
This product was CE marked in year -18
2018-12-01
Managing Director
Product manual, version 1.0, January 25, 2023, www.nordicpropeye.com
References
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