Reinhardt MWS 9-5 User manual

Manual
MWS 9-5
Microprocessor-Weather Station
(Version 1.4 and later)
REINHARDT System- und
Messelectronic GmbH
Bergstr. 33 D-86911 Dießen-Obermühlhausen
Tel. 0049 - (0) 8196/934100 Fax 0049 - (0)8196/7005 or 1414
E-Mail: [email protected]
http://www.reinhardt-wetterstationen.de

REINHARDT System- und Messelectronic GmbH
Bergstr. 33 86911 Diessen-Obermühlhausen Postfach 12 41 D-86908 Diessen Tel. [phone]
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MWS 9-5 Manual
Table of contents
1 Caution .......................................................................................................................................................5
1.1 Intended Use..................................................................................................................................5
1.2 Safety Regulations .........................................................................................................................5
1.3 Mounting.........................................................................................................................................5
2 Setting up the MWS 9-5 Weather Station ................................................................................................6
2.1 Installation of Hardware..................................................................................................................6
2.1.1 Warning!!................................................................................................................................6
2.1.2 Overvoltage protection ...........................................................................................................7
2.2 Software Installation.......................................................................................................................8
2.3 Start the Software...........................................................................................................................9
3 Technical details........................................................................................................................................10
3.1 In Case of Power Failure................................................................................................................10
3.2 Maintenance...................................................................................................................................10
3.3 The sensors....................................................................................................................................11
3.3.1 Temperature Sensor ..............................................................................................................11
3.3.2 Humidity Sensor.....................................................................................................................11
3.3.2 Pressure Sensor ....................................................................................................................11
3.3.4 Solar Sensor .........................................................................................................................12
3.3.5 Wind Speed Sensor ...............................................................................................................12
3.3.6 Wind Direction Sensor ...........................................................................................................12
3.3.7 Rain / Precipitation Sensor.....................................................................................................13
3.3.8 UV-Sensor (Option)................................................................................................................13
3.3.9 Light Intensity Sensor (Lux-Sensor) (Option).........................................................................13
3.3.10 Additional Sensor .................................................................................................................13
3.4 Accuracy Sensors ..........................................................................................................................14
3.4.1 Measuring Ranges .................................................................................................................14
3.5 Adjustment of Additional Sensors ..................................................................................................15
3.6 Power Supply .................................................................................................................................16
3.7 Data Format ...................................................................................................................................16
3.8 System requirements .....................................................................................................................17
3.8.1 System requirements (16bit-Versions)...................................................................................17
3.8.2 System requirements (32bit-Versions)...................................................................................17
3.8.3 System Requirements for DOS-Versions...............................................................................17
3.8.3.1 SMARTDRIVE................................................................................................................17

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4 Connections and pin assignments..........................................................................................................18
4.1 Cables ............................................................................................................................................18
4.1.1 Power / Data Cable ................................................................................................................18
4.1.1.1 Connection Diagram Standard Data Cable....................................................................18
4.1.2 Allocation of the Connection Cable for MWS9-5 Heating Device ..........................................19
4.1.2.1 Connection Diagram Cable with Heating Device ...........................................................19
4.1.3 Allocation of the Connection Cable for MWS9-5 with RS422 / 485 Interface: .......................20
4.1.3.1 Connection Diagram MWS 9-5 with RS422 / 485 Interface...........................................20
4.2 Pin assignments.............................................................................................................................21
4.2.1 Allocation of the Remaining MWS 9-5 Connections ..............................................................21
5 Excerpts from the Directions of DWD for Automatic Weather Stations...............................................22
6 Trouble Shooting.......................................................................................................................................23
6.1 Fault Protocol File (16 bit versions)................................................................................................23
6.2 Protocol-files (32 bit versions)........................................................................................................23
6.2.1 Log-file in case of error (ErrLog.txt) .......................................................................................23
6.2.2 Logfile when starting up (log.dat) ...........................................................................................23
6.3 RS422/RS485 port .........................................................................................................................24
7 Options.......................................................................................................................................................25
7.1 Option LCD-Display........................................................................................................................25
7.1.1 Ways of Displaying the Data ..................................................................................................25
7.1.2 Changing the Configuration ...................................................................................................25
7.1.3 Commands for Controlling the LCD-Display: .........................................................................26
7.1.3.1 Control Parameters........................................................................................................26
7.2 Other available displays .................................................................................................................27
7.2.1 Meteograph ............................................................................................................................27
7.2.2 DKA1......................................................................................................................................27
7.2.3 DMG.......................................................................................................................................27
7.2.4 DMMG....................................................................................................................................27
7.2.5 DMMK ....................................................................................................................................27
8 Technical appendix ...................................................................................................................................28
8.1 Control Parameters for calibrating an additional sensor ................................................................28
8.2 Controlling the Microprocessor.......................................................................................................29
8.2.1 Input parameters of the MWS9-5-microprocessor .................................................................29
8.2.2 Querying parameters of the Microprocessor..........................................................................32
8.2.3 Order of the MWS5M Sensors ....................................................................................................33
9 Packing MWS 9-5 properly .......................................................................................................................34
10 Exchange Connectors.............................................................................................................................34

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MWS 9-5 Manual
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REINHARDT System- und Messelectronic GmbH
Fax: [phone] and 1414 email: [email protected] Web: www.reinhardt-wetterstationen.de
MWS 9-5 Microprocessor Weather Station

REINHARDT System- und Messelectronic GmbH
Bergstr. 33 86911 Diessen-Obermühlhausen Postfach 12 41 D-86908 Diessen Tel. [phone]
MWS 9-5e.p65 Page 5
erstellt am 30.05.2012 von DO
MWS 9-5 Manual
1 Caution
1.1 Intended Use
REINHARDT-Weather stations and sensors are exclusively built for stationary operation on a
fixed 1" pipe for automatically collecting climatic parameters outside.
Any use other than described above may cause damage of the product or or other danger.
Do not mount the weather station in reach of children and pets.
Carefully read the complete operating manual. It contains important information about the in-
stallation and operation.
1.2 Safety Regulations
The instruments are manufactured according to modern technical standards and can be operated
without danger when used as directed.
Damage caused by non-observance of this operating manual can lead to forfeiture of warranty.
We shall not assume any liability for subsequent damage.
We shall not assume any liability for damage of items or persons caused by improper handling
or non-observance of the safety instructions! In such cases any guarantee claims shall become
null and void.
Dear customer, the following safety and hazard notices not only serve the protection of your health
but also the protection of the appliance. Please read the following points carefully.
The supply voltage is converted by isolated transformers into voltages of maximum 24VDC.
Please do only use the supplied power supply units.
The weather station includes pointed and sharp-edged parts (i.e. windvane and edges of the
sensor's housing), which may cause injuries when handled without care.
Do not leave the packaging material lying around. These parts are dangerous toys in the hands
of children.
Handle the product with care. Blows or impact, or dropping it even from a small heigth will da-
mage it.
1.3 Mounting
The weather station is mounted on a 1" water-pipe. This pipe must be fixed very well to stand
high wind speeds above 150 km/h when the weather station is mounted.
The weather station is to be fixed well onto the 1" pipe with the pipe clip or the screws. The sta-
bility of the weather station on the pipe must be established. Really check this after mounting
the weather station!
Insects and dirt may jam the precipitation- and the windsensors! Due to this circum-
stances please mount the weather station on a place you easy can reach for maintenance
purposes for the station can not be guaranteed to be absolutely maintenance free!!
You also find advice for mounting the weather station on your weatherCD.

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MWS 9-5 Weather Station has been designed for measuring the most important weather para-
meters such as temperature, humidity, barometric pressure, wind direction and wind speed, rain
(precipitation) and solar energy. All parameters can be displayed graphically, digitally or as an
„instrument“. There is also statistics and a history-function.
2 Setting up the MWS 9-5 Weather Station
2.1 Installation of Hardware
Setting up the weather station is easy:
Mount the weather station on a 1" pipe. Orient the North-marker to the North and clamp
MWS9-5 in place (Please use the wall clamp enclosed.). Take care that the pipe is mounted as
perpendicularly as possible, otherwise the windvane will not work properly and will perferably
rotate in one direction.
NOTE
Very Important !
The wind vanes of the MWS 9-5 weather station are very sensitive sensory equipment which can
easily be destroyed by mechanical influence.
Therefore do keep the packing of your weather station. Whenever you want to ship your weather
station later, this packing guarantees that the weather station is not damaged in transport !! Time
and again we have noticed that the units are damaged by wrong packing. This is very annoying
for the customer because he has to pay for all costs that may arise.
Please ask for a quotation of an original packing if it is no longer available to you (see last page).
The weather station must be set up at a place which is exposed to the weather (wind and sunshine),
because otherwise wind direction, wind speed and solar radiation cannot be measured correctly.
(Please see the "Directions of Deutscher Wetterdienst").
Connect the enclosed cable as follows:
Connect the 9pole connector to a free serial interface of your PC (COM1 or COM2 under the
Windows-version COM3 or COM4 as well), with 32-bit versions COM1..16).
Plug the power supply into a power outlet 230V / 50Hz.
2.1.1 Warning!!
Never leave the POWER-connector connected to the weather station, if you have not connected the
power supply, because then the internal backup batteries, which grant up to 15 minutes operation
in case of power failure, will be discharged.
If the POWER-connector is plugged in for a long time to the MWS 9-5 without input
voltage the internal accus will be damaged due to permanent discharge!!
Note on Security
Please note that you must in any case use the power supplies which we have provided or which are
technically identical with your MWS 9-5 weather station. Nominal value must be between 10 V
and 24 V DC voltage; it must be possible to apply at least 100 mA (with optional heating element
another 15 or 24 V DC 1.5 A). Please note also that all the power supplies we provide are only
made for use in dry rooms.
The (optional) GPS-receiver is connected next to the 8-way POWER / Data-connector.
The other two sockets are free for additional sensors and for an (optional) heating. The additio-
nal sensors can be voltage supplied by the weather station or they can have their own supply.
Output voltage of the additional sensors must not exceed +4V; with sensors with pulse output, a
TTL-signal is required which may have frequencies from 0..40 kHz (Please contact us if you need
other measuring ranges). (Also see "Additional-Sensor").
When you have set up the hardware, you install the software and start the unit.

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2.1.2 Overvoltage protection
The MWS 9-5 contains an integrated overvoltage protection (Suppressordiods) at it's supply- and
data wires.
The power linie is protected by a SMCJ26CA-diode. This diode breaks through at voltages above
31VDC and is able to carry up to 1500W for a few milli seconds.
CAUTION: If you connect voltages above 30VDC permanently to the power jack, this
diode will be destroyed within a few seconds!
The data lines are protected by SMBJ15CA-diodes able to carry transients up to 600W.
Also the housing made of high quality steel is connected to system ground.
This protection is suitable for protecting the station from damage due to overvoltage at close
lightning strikes.
For protection of the connected peripherals (computer, camera, i.e.) the customer has to take
further precautions (line protection, opto couplers, i.e.).
But please note that this protection is ineffective in case of direct lightning strike
due to extremely high energy of lightning!
Currents of up to 200.000A can cause voltages up to 20.000V on the housing which
leads to flashovers onto the internal electronic components and it's destruction.

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2.2 Software Installation
Insert the WeatherCD into your CD-drive.
You need an HTML-capable browser (Netscape, Internet-Explorer or else).
If Autostart is activated, the CD starts on its own, if not, you execute START.HTM in the CD root
directory. (If you want to install the software packages directly, you will find the paths for the
single installations in the install.html file.)
Now you follow the instructions of the WeatherCD.
NOTE
The software installations of the 16bit-versions neither change the registry nor any INI-files of your
WINDOWS-system. The 32-bit versions create the HKEY_CURRENT_USER\Software\Reinhardt
GmbH\Wetter\... key in the registry which is only created when running and is not deleted when
the software is de-installed.
Please note the instructions given on the CD for mounting the MWS 9-5.
Then the weather station can be used 20 seconds after it is plugged in.

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2.3 Start the Software
Start the software by double-clicking on the program icon (with the DOS-version, you enter
"START").
Select the interface (COM1..COM4), everything else should be left at default-settings. Then the
weather software starts.
An error message should appear on screen which tells you that the time of the MWS 9-5-clock is
not correct. After every start, the software checks the clock of MWS 9-5 and compares it to your
computer clock. If they differ more than 10 minutes, the programs asks if the MWS 9-5-clock is
to be set. Needless to say, the clock of the connected PC must give the correct time, as MWS 9-5
is set to the PC-clock.
Choose „YES“ for setting the clock of MWS 9-5.
If your MWS 9-5 holds a GPS-receiver, it provides MWS 9-5 with the correct time, the coordinates
and the number of available satellites.
The software should run for at least one memory interval so that at least one data file is stored
on the hard disk. This is important for reading out the datalogger later. (If there is no data file
on the hard disk, the datalogger cannot be read out as the software does not find a start date.)
If the software is not started, there might be a faulty data file on the hard disk or not enough free
memory. This causes an abort.
If the software finds a faulty data file, there is an error message. Abort with „j“ then and delete the
faulty file. Please avoid editing the data files of MWS9-5 (extension .MWS). Many editors cannot
handle files of this size. Even a little change of these files can result in that the data can no longer
be interpreted!
(For more details on the software components see the manuals for the respective software).
The manual for the latest software you'll find here.

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3 Technical details
The standard datalogger of MWS 9-5 can store data of about 26 days, 6 hours and 5 minutes (7561
data records). These specifications refer to a memory interval of 5 minutes and the 13 sensors set
by default. Shorter memory intervals and more sensors reduce the period of time which is covered
with the datalogger, larger intervals and less sensors extend it.
The small Excel-file \Software\MWS 5M - Speicherkapazität\Speicher MWS 5M.xls on the Wea-
therCD helps you to find out the exact memory which is required.
3.1 In Case of Power Failure
The datalogger of MWS 9-5 is made up of EEPROMS which preserve the data even after a power
failure. In case of power failure, MWS 9-5 keeps on running as usual for up to 15 minutes and
storing data in its datalogger because of the in-built backup batteries (3x NiMH). If additional
sensors are connected, they reduce this run time because more power is required. A connected
GPS-receiver and the heating do not run on if the power supply fails. For an operation in case of
power failure it is necessary that the POWER / Data connector of MWS 9-5 remains plugged-in.
NOTE
If the power failure takes too long and the backup batteries are discharged, MWS 9-5 loses the time
and data are only stored into the datalogger, after the clock is reset when power has returned or if
a GPS-receiver sets the clock automatically.
If you unplug the MWS 9-5 power connector, the clock is deleted.
When power returns, the internal backup batteries are recharged within a few hours.
NOTE
It the MWS 9-5 power connector is unplugged, the microprocessor interpretes this as an irregular
abortion!!
MWS 9-5 then loses the time and only stores data into the datalogger after the clock is reset.
If the Power Supply is unplugged and the POWER / Data connector is plugged-in, MWS 9-5 behaves
as if there were a power failure and, because of the backup batteries, keeps on running as usual for
up to 15 minutes. It is therefore possible to e.g. move or transport MWS 9-5 without losing data or
without interrupting the recording, if this takes only a short time.
Missing data are indicated by measure values of -99999 in the datafile. The software then reco-
gnizes in the values of -99999 that data are missing and creates a gap in the graphical displays.
You may also set MWS 9-5 in such a way that it writes into the datalogger in the set memory in-
terval as soon as operating voltage is applied. Then the datalogger contains data with the wrong
time and cannot be read out by the delivered software. You will need your own application then !
3.2 Maintenance
Because of its elaborated sensors, MWS 9-5 almost needs no maintenance. The dripping hole of
the rain collector may be clogged by insects, leaves etc. In this case, the display of rain remains
unchanged even if it is raining. You just have to carefully clean the rain collector.
The display of rain may also stop if the the rain bucket is stuck by insects below the funnel. Lo-
sen the three silicone drops that fix the funnel on the station and carefully remove the funnel.
Remove spider webs etc. from the rain bucket then. Check the mobility of the bucket and then
re-fix the funnel with three drops of silicone.
Also the windsensors may get jammed by insects or dirt.
So please mount the weather station easy to access in need of maintenance!
In any case do not open the housing. Otherwise, delicate components inside the weather station
might be destroyed.
NOTE
Our warranty ends if there is any intervention into hardware or software from your side.

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3.3 The sensors
MWS 9-5 weather station has been developed for statio-
nary use under normal climatic conditions (temperate
zone). Use under extreme conditions such as e.g. on board
of a ship, mobile use on a measuring vehicle etc. has not
been tested. It is therefore not recommended to set up
the MWS 9-5 weather station where it is exposed to salt
or salt water ( e.g. directly at the coast etc.).
3.3.1 Temperature Sensor
Temperature measurement is based on a PT100.
The resulting measured value is further linearised by
the software. By standard, the temperature sensor is
mounted on the lower side of the weather station and is ventilated so that it reacts very fast to
temperature changes and avoids a buildup of heat.
Range: from -40 °C to + 50 °C, measuring accuracy ± 0.3 °C, (display also possible in °Fahrenheit
or Kelvin)
CAUTION: Compared to temperature measurements in big shielded cabins the values can be
higher when the sun is shining. If the temperature measurements must correlate with the measu-
rements in big shielded cabins you should measure temperature with an additional temperature
sensor placed in the shadow or in a big shielded cabin!
3.3.2 Humidity Sensor
is a fast responding capacitive sensor (monolithic) which is based on a dielectric with variable
humidity (capacitance). In proportion to humidity the electronics create a signal with changing
frequency which is evaluated by the microprocessor. The sensor is also mounted on the lower side
of the weather station. There is a protective cover of Gore-Tex above the sensor so that it does not
become polluted or destroyed by dust or insects.
Our humidity sensor can be used in a temperature range between -40 °C to + 50 °C. It is linea-
rized to an accuracy of 2 %. The humidity sensor is fully immersible.
Range: from 10 to 100 %, accuracy ±2 %, display also as dewpoint measurement in °C or °F.
NOTE
This sensor is very responsive to static charge and air pollution (dust, aggressive gases, but also salt).
Please note that under unfavourable conditions (i.e. microbic stress caused by moulds, bacteria)
this sensor ages faster than under normal conditions.
The producer of this sensor specifies a typical drift of +1.5%RF..2%RF per annum under normal
conditions. It should therefore be calibrated or checked every 2 years.
3.3.2 Pressure Sensor
is a monolithic, laser-trimmed sensor for absolute pressure which is linearized to 5 hPa for the
whole temperature range, i.e., the barometer is temperature compensated. Another tempera-
ture linearisation reduces the deviation to less than 2 hPa over the whole temperature range.
The measuring signal is elaborated by an instrumental amplifier. The sensor can be used in the
temperature range of -40 °C to + 60 °C.
Measuring range: from 600 hPa to 1100 hPa with ± 0.8 hPa accuracy; display can be reduced to 0
m above sea level (input of the local altitude in [m], display also in mm mercury column or Inch
mercury column).
This sensor can be used at altitudes from 50m below zero up to altitudes of 3000m. Other altitudes
are possible on request.
This sensor can be transported by air cargo!

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3.3.4 Solar Sensor
This is a pyranometer which absorbs radiation between 305 and 2800 nm. The temperature of a
black and a reflecting element is subtracted and linearised by the software. The measuring sensors
are two semi-conductor sensors.
The values are edited in W/m2.
The measured value reaches 90 % of its final value after about 90 seconds.
Range: from 0 to 1300 W/m2with ±40 W/m2accuracy.
3.3.5 Wind Speed Sensor
is an anemometer with magnetic scanning. Wind speed is measured contactless using a Hall
sensor (V1.2 and later) or a Reed-contact. A peak detector holds every gust and hands it on to the
measuring software. An average value for the respective memory interval is determined.
Range: in km/h from 0 to 150 km/h with ± 2 km/h measuring accuracy, (display also in m/s, miles/h,
Knot or Beaufort), breakaway speed ca 0.5 m/s.
As we have a very comfortable, 3-fold way of measuring wind speed with current wind speed (WG),
average wind speed (WD) and gust (WS), you can adapt your wind measurement to your very needs.
Please note that dependent on the current winds, the 3 different methods of measuring wind
speed can result in very differing graphs: When measuring WG, only a current value is written
in the selected measuring interval, when measuring WD and WS, there is continuous evaluation
and the whole measuring period is monitored.
3.3.6 Wind Direction Sensor
Versions up to 1.1:
There is a weather vane with an endless precision potentiometer of 10 kOhms and a rotation angle
of 360 ° for measuring wind direction. Wind direction is given in °, with 90° being East, 180° being
South, 270° being West and 0 ° being North.
Range: in 360 °, measuring accuracy 5 ° with a dead angle of app. 10° in the North, breakaway
speed ca. 0.6m/s, < 0.6 m/s, hysteresis < 8°.
Please note, that in North direction (changing from 360° to 0°) wrong values may occur! This is
caused by switching from maximum to minimum value of winddirection. To get highly accurate
winddirection measurement, you should use the sensor with the identifier WV (main winddirec-
tion). This sensor is averaged over a storage interval so that these rare faulty values don't lead
to wrong measurement.
Output is performed as WR (current winddirection) and WV (main wind direction within a storage
interval). The value WR always has got a value between 0 and 359.9°. WV only has got values
between 0 and 359.9° if WG > 0. If WG = 0, WV has got a value of -99997, which means, that no
valid value for the main winddirection is available. This is clear for when windspeed = 0 no main
winddirection can be calculated.
With Version 1.2 the potentiometer will be replaced by a precision magnetical encoder without
dead angle in the north direction. (since 2009)

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3.3.7 Rain / Precipitation Sensor
A self-emptying bucket is tilted by the collected rain. All the water that has been collected on
the normed area of 200 cm2is led through a funnel to the bucket. The bucket tilts whenever a
certain quantity of water has been collected. The tilting creates pulses which are counted. Out of
the pulses, the software calculates the rain that has fallen per m2 since the last reset. The current
intensity of rain is also found and displayed.
Range: from 0 to 5000 ltr/m2,
measuring accuracy ± 0.2 ltr/m2
CAUTION: High windspeeds can cause a display of rainvalues also when it is not raining! This
is caused by swirls penetrating into the plugholes of the rainsensor and tipping over the bucket.
Another reason for unexplainably rain values can be a vibration of the mast caused by storm,
which leads to tipping over of the bucket too.
3.3.8 UV-Sensor (Option)
measures ultraviolet radiation in the range of 210-380 nm. Maximum sensitivity is about 275nm
(UV-B).
(S = S * 0.1)
3.3.9 Light Intensity Sensor (Lux-Sensor) (Option)
measures light intensity in Lux. Measuring range is from 370nm..680nm.
3.3.10 Additional Sensor
Sensors of any kind can be integrated as additional sensors. The information signal must be applied
as voltage in the range between 0 V and + 4.095 V or it has to be adapted toMWS 9-5. Negative
or higher voltages must be avoided in any case.
The sensor signal is then linearized by software.
As an option the additional inputs can also deal with frequencies with TTL-level in the range
from 0…40kHz. In case of need please contact us for further information.
We offer an additional sensor for measuring soil or water temperature.
Pin 8 of the connector for additional sensor leads the output voltage of the PSU which supplies
the weather station and can power the additional sensor.
NOTE
If current consumption of the additional sensors plus current consumption of the weather station
exceeding the maximum current of the PSU, we cannot grant that MWS 9-5 weather station works
properly !!!
If they need higher currents, the sensors must have an external power supply and its ground has
to be connected to the MWS 9-5-ground (Pin 1 of the connector socket). You can call for adjustment
instructions of the additional inputs at any time.

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3.4 Accuracy Sensors
Temperature: ± 0,3 °C
Humidity: ± 2.0 % (at 10°C..35°C)
Solar energy: ± 40 W/m2
Pressure: ± 0.8 hPa (at 0°C..50°C), otherwise ±2 hPa
Rain/precipitation:± 0.2 mm
Wind direction: ± 5° (at -10°C..50°C), Hysteresis < 8°
Breakaway speed: ca. 0.6 m/s (at -10°C..50°C)
Wind speed: ±2 km/h (at -10°C..50°C)
Breakaway speed: ca. 0.5 m/s (at -10°C..50°C)
UV-sensor ±10% of final value
Light sensor: ±8% of final value
Additional sensor: ± 1 % of final value (at 0°C..50°C)
3.4.1 Measuring Ranges
Temperature: from -40 ° to + 50 °, 0.1 ° resolution
Relative humidity: from 10 to 100 %, 0.1 % resolution
Dewpoint: from -40 ° to + 50 °, 0.1 ° resolution
(calculated from temperature and humidity)
Barometric pressure: from 950 hPa to 1050 hPa in 0.1 hPa resolution
Absolute pressure : from 600 hPa to 1100hPa in 0.1 hPa resolution
Solar energy: from 0 to 1300 W/m2with 1 W/m2resolution
(Spectral range 305..2800nm)
Precipitation: from 0 to 5000 mm with 0.1mm resolution
Wind direction: 0 to 359,9 °, resolution 0.1 °
Wind speed: in km/h from 0 to 150 km/h with 0.1 km/h resolution
Additional inputs: 0- 4.095 V analog or 0..40kHz digital
UV : from 0 to 15000 mW/m2(Spectral range 210..380nm)
Light intensity: from 0 to 150000 Lux (Spectral range 370..680nm)

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3.5 Adjustment of Additional Sensors
You will find the adjustment value pairs of your weather station in the MWS9_M.XXX, with XXX
a three-digit number.
Additional sensor A has got identification ZA, additional sensor B identification ZB. The pairs of
values of ZA start with !L5, those of ZB with !L7 and those of ZC with !L9.
By default we have adjusted the additional inputs ZA and ZB in mV and ZC in kHz.
Now you connect the additional sensor to the resp. socket.
Start a terminal-programm (e.g. Windows-Terminal) and configure as follows: 9600 Baud, 8bit,
no parity, 1 Stopbit.
Under Windows-terminal, menu "Settings" - "Terminal-Settings" you turn on CR->CR/LF when
transmitting (This creates a #13#10 by pressing the Enter-key.).
You now change into the adjustment mode of the weather station. All sensors will be output with
your raw values.
Here you can find out which raw value is created by your additional sensor at a respective analog
value. Expose a temperature sensor to 0°C, wait until the sensor has adapted to this temperature
and then you see the respective voltage of the sensor. You proceed with e.g. 25°C etc.
Note these pairs of values and replace the resprective lines in the adjustment file. It is most
important that the first pair of values (e.g. !L5,1,F...) must contain the lowest raw value and the
last pair of values must contain the highest raw value.
At least 3 pairs of values must be determined per sensor (e.g. !L5,1F,.... to L5,3,W..).
All pairs of values which are not needed must contain raw value 65535!!
After you have determined the necessary adjustment values and entered them in the adjustment
file, you can transmit the changed file to MWS 9-5 as follows:
Start program WS_CFG.EXE, set the interface parameters and select the name of your adjustment
file. Now the new adjustment data are transmitted.
Do never change the pairs of values of the other sensors as this would lead to wrong measurements
of your weather station.
You will find the necessary parameters for controlling the weather station via Terminal-Program
in the technical appendix under Control Parameters.

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3.6 Power Supply
8-28 VDC, ca. 150 mA, standard equipment
A voltage supply is also possible with voltages from 4.0..8.0 VDC.
CAUTION: The internal backup batteries are not charged in this case!!
Dimensions
Size: Outer diameter 260 mm, height 240 mm
Weight: ca. 1.5 kg
The housing must be mounted centrally on a 1" pipe. Standard cabling is 10 m - longer cabling
on request.
3.7 Data Format
The data format of the transmitted data looks like this:
15:24:32, 15.09.03, TE22.09, SO233.32, DR952.25, WR78.91, FE35.58, RE2.01, WG0.00, WS4.11,
WD494.29, WC22.09, WV80.79,
Every 2 seconds, MWS 9-5 transmits a data record which starts with time and date. Separated
by comma, the single measured values with sensor identification come in the following order:
Temperature (TE), solar energy (SO), barometer (DR), wind direction (WR), humidity (FE), rain/
precipitation (RE), wind speed (WG), gust (WS), wind average value (WD), windchill (WC), pre-
valent wind direction (WV).
The datastring ends with <CR><LF>, since firmware 2.16 each datastring which is written in the
internal logger includes an additional ASCII #31 in front of <CR><LF> for data-synchronisation
with the software.
The order of the sensors may be changed by changing the positions of the sensors in the datastring
(!Kxx), see appendix.
By default, the data are transmitted with 9600BAUD, 8bit, no parity and 1 stopbit.
(For evaluation with your own software, you can set several output modi - see appendix).
On harddisk, a data file is created every month with a format which is similar to that of the
transmitted data. The data files receive the extension .MWS
Example :
The filename of the November file 2005 is 11_05.MWS (16bit software versions) and 11_2005.
MWS (32bit software versions).
In case of missing data (cause by power fail, etc.) the software writes data with measuring values
of -99999 to ensure integrity of the time axis. The software construes these values (-99999) as
missing data and creates measurement gaps in the graphical displays.
NOTE
The 32bit versions can read the 16bit-files, but not vice versa!!

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3.8 System requirements
3.8.1 System requirements (16bit-Versions)
The MWS 9-5-software needs a computer with at least 486 processor and 4MB RAM (2MB of
which must be free (XMS)).
Runs with WIN3x.
You need a free COM-Port (COM1 or COM2, with Windows-versions COM3 or COM4 as well).
If you use COM3 or COM4, please note that it is only possible to switch interrupts for COM3 and
COM4 with special interface boards! If you do not have such a board, there will be problems if you
use devices at the same time on COM2 and COM4 or COM1 and COM3, because the interfaces
use the same interrupts by default.
COM3 and COM4 are only available with the WINDOWS-version!
We recommend a mouse (MS-compatible).
If you use a computer without serial port a RS23 to USB converter, TCP/IP Converter or WLAN
modules are available to connect your weather station.
3.8.2 System requirements (32bit-Versions)
At least a computer mit Pentium1 / 200 processor and 32MB RAM.
Runs with WIN98 SE and later.
3.8.3 System Requirements for DOS-Versions
- MS-DOS Vers. 4.0 and later
- HIMEM.SYS Driver in CONFIG.SYS
- FILES = 30 Entry in CONFIG.SYS (at least 30)
- if possible, noEMM386.EXE; if absolutely necessary with extension call
RAM (DEVICE = EMM386.EXE RAM in CONFIG.SYS)
- Minimum 1.6MB free XMS-memory
3.8.3.1 SMARTDRIVE
If you have installed SMARTDRIVE, you must limit its memory demand by changing the respec-
tive line in AUTOEXEC.BAT:
C:\DOS\SMARTDRV.EXE /X... change into
C:\DOS\SMARTDRV.EXE 1500 /X...
Limitation to 1500kB is recommended with 4MB main memory; if there are 8MB and more, a
limitation to 4 MB will be sufficient.
If the memory for SMARTDRV is not limited MWS 9-5-software may abort under certain circum-
stances with the error message RAM full and the computer may crash.

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4 Connections and pin assignments
4.1 Cables
4.1.1 Power / Data Cable
Allocation of the Connection Cable for MWS 9-5 (for version 1.4 and later).
8 way connector (MWS 9-5-connection) 9-way interface connector
Pin 1 (GND) < > Pin 5 (GND)
Pin 2 (GND), connects to GND when plug is inserted (for batterie buffer)
Pin 3 (RXD-MWS9-5) < > Pin 3 (TXD-PC)
Pin 4 (TXD-MWS9-5) < > Pin 2 (RXD-PC)
Pin 5 (VCC 18VDC)
Pin 6
Pin 7
Connect Pin 1 and 2 Connect Pin 4 and 6
Connect Pin 7 and 8
The data cable can be lengthened to up to 50 m under optimum conditions and with suited cable
(not in industrial environment!!)
In case you lengthen the data cable, please take care that the bridges in the connector at the com-
puter must be wired.
(Connect Pin 4 to Pin6 and Pin7 to Pin8).
4.1.1.1 Connection Diagram Standard Data Cable
Caution: If you want to use the station for data recording without connected computer, you
should disable the COM-port and then connect pin 2 (RXD) and pin3 (TXD) of the 9-pole plug.
You may build a connector with these 2 pins shorted and plug it onto the 9-pole female of your
RS232 datacable. Don't let the RS-232 female unconnected, for disturbances on the cable may
lead to malfunction of the weatherstation then! To connect a PC again, remove the shorting plug,
connect the standard cable to the PC and enable the COM-port with again.

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4.1.2 Allocation of the Connection Cable for MWS9-5 Heating Device
5 way connector (MWS 9-5-connection) Power Supply for Heating Element (24V / 1A)
Pin 1
Pin 2 (GND Heating) < > GND
Pin 3 (VCC Heating) < > VCC
Pin 4
Pin 5
The cable (10m) must not be lengthened as it may happen that there is not enough power for the
heating device when it device is working.
4.1.2.1 Connection Diagram Cable with Heating Device

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4.1.3 Allocation of the Connection Cable for MWS9-5 with RS422 / 485 Interface:
8-way connector (MWS9-5-connection) Output RS422 (free wire endings)
and Power Supply (power supply unit)
Pin 1 (GND) < > to GND power supply unit (grey wire)
Pin 2 (GND) < > connect to Pin1
Pin 3 (R+-MWS9-5) < > yellow wire (T+ PC)
Pin 4 (T+-MWS9-5) < > white wire (R+ PC)
Pin 5 (VCC 18VDC) < > (to Power supply unit VCC - pink wire)
Pin 6 (R--MWS9-5) < > green wire (T- PC)
Pin 7 (T--MWS9-5) < > brown wire (R- PC)
Pin 8 free
connect Pin 1 and 2 !
The data cable can be lengthened to up to 1,000 m, the cable of the power supply to up to 50m.
4.1.3.1 Connection Diagram MWS 9-5 with RS422 / 485 Interface