Campbell Wintersense User manual

Revision: 01/2021
Copyright © 2020 – 2021
Campbell Scientific
CSL I.D - 1365
Wintersense
An IoT Solution for
RWIS Network Densification

Please read first
About this manual
Please note that this manual was originally produced by Campbell Scientific Inc. primarily for the
North American market. Some spellings, weights and measures may reflect this origin.
Some useful conversion factors:
Area: 1 in² (square inch) = 645 mm²
Length: 1 in. (inch) = 25.4 mm
1 ft (foot) = 304.8 mm
1 yard = 0.914 m
1 mile = 1.609 km
Mass: 1 oz. (ounce) = 28.35 g
1 lb (pound weight) = 0.454 kg
Pressure: 1 psi (lb/in²) = 68.95 mb
Volume: 1 UK pint = 568.3 ml
1 UK gallon = 4.546 litres
1 US gallon = 3.785 litres
In addition, while most of the information in the manual is correct for all countries, certain
information is specific to the North American market and so may not be applicable to European
users.
Differences include the U.S standard external power supply details where some information (for
example the AC transformer input voltage) will not be applicable for British/European use. Please
note, however, that when a power supply adapter is ordered it will be suitable for use in your
country.
Reference to some radio transmitters, digital cell phones and aerials may also not be applicable
according to your locality. Some brackets, shields and enclosure options, including wiring, are
not sold as standard items in the European market; in some cases alternatives are offered. Details
of the alternatives will be covered in separate manuals.
Part numbers prefixed with a “#” symbol are special order parts for use with non-EU variants or
for special installations. Please quote the full part number with the # when ordering.
Recycling information
At the end of this product’s life it should not be put in commercial or
domestic refuse but sent for recycling. Any batteries contained within the
product or used during the products life should be removed from the
product and also be sent to an appropriate recycling facility.
Campbell Scientific Ltd can advise on the recycling of the equipment and
in some cases arrange collection and the correct disposal of it, although
charges may apply for some items or territories.
For further advice or support, please contact Campbell Scientific Ltd, or your local agent.

Table of contents
1. About Wintersense 1
1.1 Technical specifications 1
2. Software setup 3
2.1 Get started 3
2.2 Create a network 4
2.3 Add sites 5
2.4 Add sensors 6
2.5 Bind (link) sensors to sites 7
3. Sensor activation 7
3.1 Activate sensor 8
3.2 End-to-end data test 9
4. Site installation 9
4.1 Install bracket 9
4.2 Installation height 10
4.3 Installation angle 11
4.4 Sensor and location check 11
5. View data 17
6. Maintenance 18
6.1 Clean the sensor 19
6.2 Replace battery and desiccant 19
6.3 Replace the temperature and humidity element 22
6.4 Replace sensor element 23
Appendix A. Wintersense Datex2 support documentation 26
A.1 Introduction 26
A.2 Endpoints 26
A.3 Authentication 26
A.3.1 Example in Postman 27
A.3.2 Example in curl 27
A.3.3 Getting a Wintersense API Key 27
Table of Contents - ii

A.3.4 Alternative authentication approaches 27
A.4 Site data 28
A.5 Observation data 28
A.6 Getting a list of sites 29
Table of Contents - iii

1. About Wintersense
Wintersense is an easy-to-deploy, smart, non-invasive sensor for road temperature monitoring.
Using the latest generation, low-power wide-area network (LPWAN) communications,
Wintersense provides a fully integrated smart sensor. Power and communications are integrated
in the sensor. The sensor is compact and light enough to be easily mounted onto existing
roadside columns (such as street lighting columns), significantly reducing the costs of
installation.
Data from a Wintersense smart sensor is delivered wirelessly to a secure cloud data platform
(software) that provides the user with network management capabilities, data analysis tools, and
data export capabilities via FTP and email. For clients wanting to import Wintersense data into
their own software application, Wintersense provides a web API
https://docs.wintersense.com/api/v1/#introduction and supports data polling via Datex2 (see
Wintersense Datex2 support documentation (p. 26).
1.1 Technical specifications
Road surface temperature
Measurement range: –40 to 70°C
Accuracy1–40 to 60°C: ±1°C or better
Resolution: 0.01°C
Air temperature
Measurement range: –40 to 70°C
Accuracy –40 to 70°C: ±0.2°C
Resolution: 0.01°C
Relative humidity
Measurement range: 0 to 100%
Accuracy –40 to 60°C: <±3%
Resolution: 0.1%
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Dew point temperature (calculated)
Measurement range: –40 to 70°C
Accuracy2–35 to 50°C: ±0.2°C
Resolution: 0.1°C
Field of view (FOV): 10° (at 50% normalized signal)
Dimensions, excluding band clamp
(length x height x depth): 350 x 200 x 100 mm (13.8 x 7.9 x 4.0 in)
Weight: 1.4kg
Power
Replaceable internal battery: 3.6V 19Ahr non-rechargeable Lithium Thionyl Chloride
D-cell
Recommended replacement
battery: Tadiran SL-2780/TL-5930, available from Campbell
Scientific. Any alternative battery must comply with IEC
60086-4 to ensure safe operation.
Average power consumption: <1 mA typical
Data transmission frequency: 15 minutes
Radio communications
Network: Compatible with the Sigfox Network.
Works in Sigfox region: RC1. Covers operation in:
Austria, Belgium, Bulgaria, Croatia, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece,
Hungary, Ireland, Italy, Latvia, Liechtenstein, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Serbia, Slovakia, Slovenia, Spain,
Sweden, Switzerland, United Kingdom.
Transmission frequency: 868.130 MHz
Transmission power: 25 mW ERP
Antenna: The antenna supplied has a nominal gain of 4 dBi at
868MHz.
Contact Campbell Scientific for applications requiring
NB-IoT communications.
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Operating temperature: –40 to 70°C (–40 to 158°F)
Operating humidity: 0 to 100%
Internal enclosure sealing: IP65 (minimum)
EU declaration of compliance: Hereby, Campbell Scientific Ltd. declares that the radio
equipment type Wintersense-SF, is in compliance with
Directive 2014/53/EU. The full text of the EU declaration
of conformity is available at:
http://www.campbellsci.eu/wintersense.
1Temperature dependent – quoted accuracy is against a blackbody source within ambient temperature range of
–20 to 50°C and object temperature range of –40 to 60°C.
2Calculated dew point temperature found from Tetens’ equation solved for dew point with coefficients optimized
for the temperature range –35 to 50°C.
2. Software setup
In the Wintersense architecture, users create a network, and within a network they create
multiple sites, then one or more smart sensors are linked to a site. All data is stored to a site in
the software. When a sensor is unlinked from a site, the data remains with the site and the sensor
is then available to bind to another site within the network.
NOTE:
Once a sensor is linked (bind) to a site, it cannot be added to another site until it has been
unlinked (unbind) from the current site.
2.1 Get started
1. Enter user.wintersense.com into a web browser.
2. Click Log In.
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3. Click the Sign Up tab to set up an account. Enter your email address and create a password.
Click SIGN UP >.
4. Click LOG IN >.
2.2 Create a network
1. The home screen shows a list of options under What would you like to do? Click Create a
new Network.
2. Enter the Name of the Network to add.
3. (Optional) Enter a Description.
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4. Click Add.
5. The new network will appear at the bottom of the page. Click the network name to expand
for more details.
2.3 Add sites
1. Once in the network, click the Sites link or go to the Sites tab at the top of the page.
2. The first time to this page will automatically present Add a new site.
3. Enter the name of the site.
4. (Optional) Enter a description.
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5. Input the location of the site. Either click Use Current Location, enter the Latitude and
Longitude, or adjust the cursor on the map to the precise location.
6. Click Add.
7. Repeat the process to add as many sites as required.
2.4 Add sensors
1. Go to the Sensors tab.
2. Enter the key written on the sensor or scan the QR code on the unit.
NOTE:
The sensor key is case sensitive.
3. Click Add Sensor.
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4. A sensor will automatically be added to the network but not bound to a site; this is done
manually.
2.5 Bind (link) sensors to sites
Campbell Scientific recommends binding the sensor on site to verify the sensor is installed in the
correct location. However, this can be done in advance.
1. Expand the sensor.
2. In the Bind to Site field, start typing the name of the site to bind the sensor to.
3. Select the site from the drop-down menu; this will bind the sensor to the site.
3. Sensor activation
Each Wintersense smart sensor has two modes, Sleep Mode (off) and Active Mode (on). All
sensors are shipped in Sleep Mode and must be set to Active Mode to enable automated
measurement and data collection. These modes persist through power cycles and battery
replacement.
CAUTION:
Ensure the sensor is in Active Mode before leaving the site by following the activation
procedure (Sensor activation (p. 7)). If the sensor is installed and left in Sleep Mode, no
measurement or communications will occur.
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3.1 Activate sensor
1. Press and hold the Power button on the underside of the sensor for 5 seconds, until the red
and green LEDs flash.
2. To indicate Active Mode, the red and green LEDs will flash alternately 10 times, followed by
a solid green LED for approximately 10 more seconds. It is important to observe this red and
green LED sequence.
NOTE:
When the sensor is in Active Mode, pressing and holding the Power button for 5 seconds will
return the sensor to Sleep Mode. This is indicated by the red LED flashing 10 times. When the
sensor is in Sleep Mode, pressing and holding the Power button for 1 second will not trigger
a manual measurement and data upload.
NOTE:
When the sensor is in Sleep Mode, it will transmit a GPS signal once per day to indicate its
location (GPS signal required).
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3.2 End-to-end data test
With the sensor in Active Mode, a measurement and data upload can be manually triggered for
test purposes. This will perform an on-site end-to-end data test to the software. This test is
recommended to ensure signal coverage at the installation location.
To perform a manual data test: Press and hold the Power button for 1 second.
When a measurement has been successfully triggered, a solid green LED (approximately 3
seconds) will be followed by a flashing green LED for several more seconds. If the site has
network coverage, and the sensor and software platform are configured correctly, data should
appear in the software within 30 seconds.
NOTE:
A data test will only work when the sensor is in Active Mode and there is network coverage.
Once successful, do not repeat this test too often to avoid exceeding the limit of the number
of daily messages allowed under the Sigfox contract (nominally 140 per day).
4. Site installation
Tools required:
lBand clamp of suitable size for the vertical pole the sensor will be installed on (70 to
120 mm and 110 to 170mm band clamps are supplied with the sensor)
l8 mm hex tool or slotted screwdriver (not supplied) for adjusting band clamp
l13 mm spanner, wrench, or socket to allow sensor angle adjustment
Wintersense smart sensors are simple to install. Each sensor is supplied with an integrated
mounting bracket and two band clamps suitable for mounting the sensor to a vertical pole with
diameters between 70 and 170mm.
4.1 Install bracket
The included C-bracket, used for angle adjustment, attaches to the main sensor bracket.
1. Locate installation hardware which includes two bolts, spring (split) washers, and flat
washers.
2. Slide one spring (split) washer onto each bolt.
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3. Slide one flat washer, next to the spring washer, onto each bolt.
4. Insert one bolt through the main sensor bracket hole and screw into hole on C-bracket,
ensuring the C-bracket tabs that accept the band-strap are pointing away from the sensor
bracket.
5. Insert the other bolt through the slot on the main sensor bracket and screw into other hole
on the C-bracket.
6. Secure C-bracket to main sensor bracket using a 13 mm spanner, wrench, or socket.
4.2 Installation height
The recommended installation height for a Wintersense smart sensor is 3 to 5metres. Sensors can
be installed higher if required. However, the higher the sensor is installed, the larger the surface
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measurement area will be. This increases the risk of sensing the temperature of unwanted
objects. In addition, a large measuring distance may result in reduced accuracy under certain
atmospheric conditions.
4.3 Installation angle
The recommended installation angle of a Wintersense sensor is 0 to 45° (from vertical). The
following figure shows it at 45° from vertical.
Wintersense smart sensors contain a thermopile sensor which detects the presence of thermal
radiation emitted from the target surface. With non-contact infrared thermopile sensors, typically
the greater the installation angle of the sensor from vertical, the greater the risk of sensing
reflected radiation from other sources (such as long-wave infrared or reflected sunlight), which
can affect sensor accuracy. The Wintersense unit contains an integrated optical filter (long-wave
pass) that cuts off the visible and near-infrared radiant flux to provide optimum ambient and
sunlight immunity. The wavelength pass band of this optical filter is from 5.5 to 14 µm. Therefore,
if site restrictions dictate that an installation angle of greater than 45° is required, the
Wintersense sensor will be less prone to errors from reflected radiation than other non-invasive
sensors without these optical filters.
To adjust the sensor angle, slightly loosen both bolts in the bracket to allow rotation of the
sensor around the bolt that is fitted in the round hole towards the front of the sensor. Once at
the correct angle, tighten the bolts by hand until the spring washers are fully compressed.
Adjust the angle of the hood antenna so it is as close to vertical as possible.
4.4 Sensor and location check
The following assumes that the steps in Software setup (p. 3) have been completed prior to
visiting the sensor site.
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Before physically installing the sensor at the site, confirm that the location is accurately
represented on the site map in the software.
1. Arrive at the site with equipment.
2. Enter user.wintersense.com into a web browser.
3. Click Log In.
4. Enter your email address and password. Click LOG IN >.
5. Go to the Sites tab.
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6. Select the site where the sensor is to be installed.
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7. Click Show/Edit Location to confirm the location on the map. Adjust location if required.
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8. Confirm that the unique key of the sensor about to be installed matches the key of the
sensor linked to this site in the software.
a. Under Current Sensors select the sensor ID.
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b. Compare the Wintersense sensor key on the label to be installed to the key in the
software.
If the sensor needs to be bound (linked) to a site in the software, follow steps 9
through 11.
9. Expand the sensor.
10. In the Bind to Site field, start typing the name of the site to bind the sensor to.
11. Select the site from the drop-down menu; this will bind the sensor to the site.
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