Observator Instruments MET-LINK User manual

Manual | MET-LINK
Status: Final | Not confidential
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V20200225
Manual
MET-LINK
Version: 20200225
Status: Final
Confidentiality: Not confidential
Date: 25 February 2020
Author: Ludovic Grosjean
www.observator.com

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Status: Final | Not confidential
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Document history
The Observator range is in continuous development and so specifications may be subject to change
without prior notice. When in doubt about the accuracy of this document, contact the Observator Group.
Reference documents
Type of document / tool
Product type and name (incl. url)
Manual
MET-LINK
Revision history
Date
Amendments
Company, position
2017-04-30
Initial document creation
Observator Australia,
Document Controller
2017-10-24
Updated warranty conditions
Observator Australia,
Document Controller
2017-11-13
Updated product images, battery specification
Observator Australia,
Document Controller
2018-04-09
Introduced document control
Observator Australia,
Document Controller
2019-03-11
Replaced product images + compress document
images
Observator Australia,
Document Controller
2019-07-12
Quality review
Observator Australia,
Document Controller
2020-01-30
Updated document format
Observator Australia,
Document Controller
Procedure sign-off:
Date
Company, position
Status
2018-04-09
Observator Australia, Document Controller
Finished
2019-12-06
Observator Australia, Managing Director
Approved
2020-02-24
Observator Group, Communication Officer
Approved
Distribution list
Date
Company, position

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Summary
Thank you for purchasing the new wireless MET-LINK for the Gill Maximet line of weather sensors.
What is MET-LINK?
The MET-LINK handheld solution is comprised of a Gill Maximet sensor, a MET-LINK wireless interface
and a MET-LINK Android application for your Bluetooth-enabled Android device.
The new MET-LINK product allows the user to pair the Gill Maximet’s weather sensor parameters to a
useful and full featured tablet and phone application. The MET-LINK system can be ordered with any
combination of Gill Maximet weather parameters. Gill Maximet sensors are purpose built for accuracy and
use minimal power. The MET-LINK solution provides the most cost effective, portable and quick
deployment Automatic Weather Station (AWS).
Simple to operate, upgradeable and can be customized with a wide range of accessories, MET-LINK is a
compact field instrument. The sensor is connected to the wireless module for quick field or process
reading. Logged records can be exported directly from the Android application to email, Drobox or any
number of data destinations.
The MET-LINK interface module provides rechargeable power to the sensor and manages wireless
communication to a Bluetooth enabled Android device. The sensor can be powered for up to 5 hours. The
module is lightweight, compact and can be attached to a tripod.
The MET-LINK Android smartphone application has a large range of features that support data
visualization, data logging, and data management. Data can be viewed locally (on a device) or exported in
excel format via Bluetooth, email or General Packet Radio Services (GPRS) to external data servers.
Logged data is time/date stamped and the location is tagged for mapping.
MET-LINK can be customized and is upgradeable. The MET-LINK handheld solution offers un-paralleled
ease of use, accuracy and a very competitive price.
Download the application today and run in demo mode to become instantly familiar with intuitive
operations.

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Table of contents
1Applications .................................................................................................................... 5
2Safety............................................................................................................................... 6
3Specifications.................................................................................................................. 7
3.1 Commonly used parameter specifications..........................................................................................9
4Pinout & wiring diagram................................................................................................10
5What you will find in the box.........................................................................................11
6Accessories....................................................................................................................12
7Installation......................................................................................................................13
7.1 Installing the sensor for the first time ................................................................................................13
7.2 Charging the battery..........................................................................................................................15
8Android application interface........................................................................................16
8.1 Activate the GPS location & Bluetooth..............................................................................................16
8.2 Pair the sensor via Bluetooth ............................................................................................................17
8.3 Launch the app & connect to sensor.................................................................................................18
8.4 Record data.......................................................................................................................................19
8.5 Export data........................................................................................................................................20
8.6 View a record ....................................................................................................................................21
8.7 Comment on a record........................................................................................................................22
8.8 Turn off MET-LINK interface .............................................................................................................23
8.9 Quit the application............................................................................................................................23
8.10 Delete a record..................................................................................................................................24
8.11 Access additional information............................................................................................................25
8.12 Read the Bluetooth battery level.......................................................................................................25
8.13 Export in local folder..........................................................................................................................26
9Deployment ....................................................................................................................27
9.1 How to deploy sensors......................................................................................................................27
9.2 Retrieve the sensor ...........................................................................................................................28
10 Maintenance & calibration.............................................................................................29
10.1 Battery replacement ..........................................................................................................................29
10.2 Long term storage .............................................................................................................................30

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1 Applications
Typical use of the MET-LINK device includes applications such as:
1. Quick & remote deployments.
2. Portable accurate weather readings.
3. Firefighting.
4. Tactical/defence.
5. Civil works and safety.
6. Wind related sports (paragliding).
7. Military –Unmanned Aerial Vehicle (UAV) launching.
8. Boat applications.
9. Police deployment.
10.Pollution & chemical hazard.
The MET-LINK system is a great reference tool for instant wind and weather checking. The freedom to
port data directly to a phone, tablet or laptop offers the end user, work efficiencies and an ordered means
of managing data.

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2 Safety
For correct functioning of the Observator MET-LINK, the sensor must be set up
according to the installation instructions.
Always read and follow the Maximet instructions.
Always make sure to securely attach the MET-LINK interface module.
After end of life, please dispose this product according to your local regulations or return
it to the manufacturer.

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3 Specifications
MET-LINK dimensions
Length
424.3mm
Diameter
142.72mm
Connectivity
MET-LINK interface (Bluetooth module)
Scalable Parallel Processor (SPP) profile (up to
one hundred meters)

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Power supply
Rechargeable Lithium-Ion
battery
6.8Wh
(battery life ~4-5 hours of
operation depending on usage)
Power supply, charges using 12V/2A power pack.
Maximet GMX-500 (Gill sensor)
Temperature, humidity & pressure
Air pressure / temperature
Humidity
Naturally aspirated Ultraviolet (UV) stable
radiation shield
Protection against wind-blown
precipitation/dust
Wind
Wind speed & direction
Apparent and true wind - with Global
Positioning System (GPS)
World Meteorological Organization (WMO)
wind averages and gust
Compass
GPS (optional) gives height above sea level,
latitude and longitude
GPS (option)
Height above sea level (m)
Mean Sea Level (MSL) pressure
Parameters
Temperature (°C, °F, °K)
Relative humidity (% RH, g/m3, g/kg)
Barometric pressure (hPa, bar, mm Hg)
Absolute humidity (g/m3)
Wind speed (m/s, km/hr, mph, kts, ft/min)
Wind direction (°)
True/apparent wind
Android application features
Adjustable parameter visualization, wind rose, graphs
Log files have embedded location, time, date, comments and photos
Logging of comma delimited data sentence
Smart graph viewer tool
Fast data export
Battery status and charge indicator
Sensor status
Map location from device
True wind direction corrected by sensor GPS
Compatibility
Android application for smartphone & tablet
Version 4.4 & above

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3.1 Commonly used parameter specifications
Wind speed
Range
0.1m/s to 60m/s
Accuracy
±3% to 40m/s
±5% to 60m/s
Resolution
0.01m/s
Starting speed
0.1m/s
Sampling rate
1Hz
Units
(m/s, km/hr, mph, kts. Ft/min)
Wind direction
Range
0-359°
Accuracy
±3°to 40m/s
±5°to 60m/s
Resolution
1°
Sampling rate
1Hz
Units
(degrees)
Temperature & dew point
Range
-40°C to +70°C
Accuracy
±0.3°C @ 20°C
Resolution
0.1°C
Sampling rate
1Hz
Units
(°C, °F, °K)
Humidity
Range
0-100%0-100%
Accuracy
±2% @ 20°C (10%-90% RH)
Resolution
1%
Sampling rate
1Hz
Units
(% RH, g/m3, g/kg)
Humidity
Range
300 to 1100
Accuracy
±0.5hPa @ 25°C
Resolution
0.1hPa
Sampling rate
1Hz
Units
(hPa, bar, mm Hg, inHg)

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4 Pinout & wiring diagram
Used pinout for MET-LINK are:
Pin number
Meaning
#1
Not used
#2
Supply (+Ve)
#3
Supply (+Ve)
#4
RS422/485 (TxD+)
#5
Not used
#6
RS422/RS485 (RxD+)
#7
Not used
#8
Not used
#9
Not used
Charging connector configuration:
Output
12.0V
1.0A

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5 What you will find in the box
When the product is delivered, this is what you will find in the box:
Items found in the box
Maximet sensor
GMX-550
MET-LINK interface module
Charging cable
MET-LINK-CHARGE
Hex key
Standard Li-Ion battery
MET-LINK-BATT

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6 Accessories
Observator Instruments offers a wide range of accessories for the
MET-LINK range of products. These are directly available from the
website also.
Accessories
Spare Maximet sensor
GMX-550
Spare charging adapter
MET-LINK-CHARGE
Spare Li-Ion batteries
MET-LINK-BATT
Case
MET-LINK-CASE
Spare Bluetooth MET-LINK interface module

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7 Installation
7.1 Installing the sensor for the first time
To install the Android application on your smartphone, use the following link, download and install the
“.Apk file” (for smartphones):
Download & install MET-LINK application
1. Unscrew the back cover of the MET-LINK interface module using the hex-key provided. Switch on the
“long term storage switch” using a small screw driver/pin.
Connect the Li-Ion battery to the MET-LINK interface module (normally installed when provided). If not,
please follow the instructions described in the chapter 10:“Maintenance & calibration”section 10.1:
“Battery replacement”.
Note: If storing the wireless interface for more than six months, please power off the device.
Long-term storage
switch is on

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2. Connect the MET-LINK sensor to the Maximet module by matching the pin.
3. Press on the MET-LINK interface module button and notice the blue Light-Emitting Diode (LED)
indicator is flashing. If you cannot see the blue flashing indicator light, it means the MET-LINK interface
module is not powered.
LED status
Colour
Meaning
Flashing blue
Bluetooth available for pairing
Flashing green
Device is paired
Flashing red, blue, green
Battery is charging or charged
No LED
MET-LINK interface module off
Flashing green, red, blue, off
MET-LINK is being powered off
4. Run the application go to the chapter 8: “Android application interface” of this document.
Note: In the event where the indicator is not lighting up, ensure that the MET-LINK interface module
has enough battery (refer to the “Charging the battery” section 7.2 of this manual) and ensure that
the long term storage switch inside the Bluetooth module is on.
Blue LED is on

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7.2 Charging the battery
1. Connect the provided charging adapter to the MET-LINK interface module and apply power.
2. At any time, you can monitor the charging status of the module by pressing on the MET-LINK
interface button. The LED indicator is flashing blue, green and red to indicate that the battery is
charging.
3. We highly recommend to use the application to monitor the battery level, please refer to section
8.12: “Read the Bluetooth battery level” in the chapter 8: “Android application interface”.
4. When the battery is fully charged, disconnect the charging cable.
Note: The best way to verify if the battery is fully charged is to use the Android application to monitor
the battery level. The user should expect that the charge will take ninety minutes and up to three
hours of charging if the battery is fully flat.

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8 Android application interface
8.1 Activate the GPS location & Bluetooth
1. Go to your phone options
2. Activate the GPS location of your phone
3. Activate Bluetooth

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8.2 Pair the sensor via Bluetooth
After having activated the Bluetooth on
your phone:
1. Turn on the MET-LINK interface by
pressing on the blue button. Make sure
that the blue LED indicator turns on.
2. Go to the Bluetooth settings, scan to find the new device. Select
the new sensor to pair and press pair.
3. Wait while pairing the sensor.
4. Allow pairing by pressing “OK”.
5. The sensor is now shown as paired. You can now run the MET-
LINK application.
Note: Step 2 to 5 are to be completed only at the first time when you connect a new sensor.
Blue indicator is
flashing

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8.3 Launch the app & connect to sensor
1. Search for “MET-LINK” application in Google Play store or
alternatively scan the QR code below. Download and open
the software.
2. Wait for the app to load.
3. Search for the device to connect to by pressing on “Find
Device”. If you cannot see the device, make sure that the
MET-LINK interface module is available and the blue LED is
on.
4. Select device from the available list. You will notice the
LED indicator turns green when the app is successfully
connected to the module
Note: If you want to turn off the module, make sure you disconnect the wireless module from the
application.
Green indicator is
flashing

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8.4 Record data
1. When connecting to the sensor for the first time, wait for few seconds in order to load the data and
select “Logging” menu.
2. Press on “Start Logging” to start the record.
3. A record message will be displayed while recording. Press “Stop Logging” when required.
4. If the user did not take a picture, the application will offer the user to record a picture on the database,
press “OK”.
5. Take a picture.
6. Press “SAVE” to save the picture in the database. Alternatively press “DISCARD” to take another
picture.

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8.5 Export data
1. Go to the menu page by clicking on the left-hand side icon.
2. Select “View records” menu.
3. “View records” menu will display the records available from the most recent to the oldest. Click on the
icon of the selected record to display options.
4. Select “Export” option.
5. Select your export method.
6. Compose your email including the recipient and click on the send button to send the log file and the
pictures attached.