DR. ALFRED MULLER AE400 User manual
DR. ALFRED MÜLLER
METEOROLOGISCHE INSTRUMENTE KG
R. FUESS
1
Portable Anemometer AE400
(optional with telescopic mast)
The wind display AE402-D was designed to operate with the combined windsensor AE402
but can be used with the separate wind sensors W400-1 and W400-2 too. Together with its
power pack, a transport case and compass it forms the portable wind measuring equipment
AE400 with large applicability. All single components are designed for rough, external use.
Besides its use as portable reference wind equipment it can be used together with a portable
mast as wind measuring station as well as mounted on motor vehicles or on ships or used as a
permanent land station.
DR. ALFRED MÜLLER
METEOROLOGISCHE INSTRUMENTE KG
R. FUESS
2
Display AE402-D
The display is placed in a build-in housing 135 x 135 mm and contains the sensor interfaces,
the display-driver, the accumulators and the battery charger. The display can be supplied by
any direct voltage between 9 and 15 Volt. As long as the display is supplied with external
voltage, the accumulators will be charged. The display can also be operated with external
voltage, without containing accumulators. The operating time after recharging the
accumulators is 80 h with normal brightness of the direction LED’s, switching the LED’s to
bright reduces the operating time to 35 h.
When the LED's indicating m/s or kt
respectively inst. or avg. become dark, the
accumulators has to be recharged. The
display unit AE402-D shows wind direction
by a LED-ring with 36 LED's with a
resolution of 10 degrees. It shows wind
speed by a large LCD-display with 18 mm
high characters. Kt. or m/s are selectable by
a push button, instantaneous or 2 min
average can be selected by a second button.
With a third button the power can be
switched on or off. On the right side, there
is a small switch for showing the direction
LED's normal or bright.
Wind Speed Sensor W400-1 and the Wind Direction Sensor W400-2
The wind sensor W400-1 and W400-2 are
small, sensors for wind direction and wind
speed. It consists of anodised aluminium,
polyamide and stainless steel. As wind
speed sensor, it uses a tri-cup anemometer
and a reed contact output.
4 magnets give 4 impulses per revolution.
1 m/s = 4 Hz
As direction sensor, it uses a vane together
with a ring-potentiometer with 5 k-Ohms.
The sensor has a 11 m long connection
cable with plug; extension cables up to 20
m are available. To fix the sensor on the
tripod, it has an 8 mm female thread.
DR. ALFRED MÜLLER
METEOROLOGISCHE INSTRUMENTE KG
R. FUESS
3
Assambly
in case for transportation
1. Wind Display AE402 D
2. Speed sensor W400–1 with 6 m cable
3. Direction sensor W400-2 with 6 m cable
4. Compass
5. Three spare cups for speed sensor
6. Mains adapter
7. Cross arm for speed and direction sensors
1
2
3
4
5
6
7
DR. ALFRED MÜLLER
METEOROLOGISCHE INSTRUMENTE KG
R. FUESS
4
360
90
270
30
60
120240
300
WIND SPEED
N
S
W E
AE-402
Dr.A.Müller
ON/OFF
inst.
avg.
kn
m/s
NW NE
SW SE
330
150
180
210
Technical Data: Wind display AE402-D
Construction : Robust case from plastic and aluminium,
useable as switchboard instrument,
circular connectors for input and output
Direction Display : 36 luminescence diodes super red
Display Range : 10°...360°
Resolution : 10°
Speed display : 3 1/2 digit LCD display
character height: 18 mm
Display Range : 0...190 kn / 0...100 m/s
Resolution : 0.1 kn / 0.1 m/s
Indicators : 4 luminescence diodes for indicating
kt or m/s & inst. or avg.
If the diods become dark the battery
has to be recharched.
Switches : 3 press switches for power on or off,
speed in kn or m/s,
speed as instantaneous or 2 min average value
Inputs : One socket for voltage supply,
two 5 pin sockets for wind sensors
pin 1 : poti 3 / pin 2 : poti 2 / pin 3 : poti 1/
pin 4 : GND / pin 5 : input speed sensor
Output(optional) : One 5 pin socket for analogue outputs 0...20 mA
rsp. 4...20 mA (optional)
Voltage Supply : 9V...15V DC
Battery Supply : 4 x 1.2 V Ni-MH-accumulator 2.4 Ah
integrated accu charger
Ambient Temperature : -10°C...+60 °C
Ambient Humidity : 10%...90% RH
Storage Temperature : -55°C...+60°C
Build-in Dimensions : 136 mm x 136 mm
Front Panel Dimensions : 145 mm x 145 mm
Weigh : 0.5 kg
DR. ALFRED MÜLLER
METEOROLOGISCHE INSTRUMENTE KG
R. FUESS
5
Technical Data: Wind Speed Sensor W400-1
Sensor type : Cup wheel anemometer with dry-reed contact
and 4 Alpha magnets
Measuring Range : 0...50 m/s rsp. 0...100 kn
Accuracy : 3% of measuring value
Threshold point : 0.3 m/s
Distance per revolution : 1 m
Impulses per revolution : 4
Distance per impulse : 0.25 m
Frequency / speed : 4 Hz / m/s
Cup diameter : 45 mm
Cup wheel diameter : 160 mm
Connection : 6 m cable with 5 pin circular plug
dry – reed – contact between pin 4 and pin 5
Ambient temperature : -40°C...+60°C
Ambient humidity : 0...100 % RH
Fastening : female thread M8
body dimensions : 35 mm (D) x 142 mm (H)
Weight : 0.5 kg
Technical Data: Wind Direction Sensor W400-2
Sensor type : Wind vane with ring potentiometer
Range : 1°...359°
Accuracy : +/- 2°
Damping ratio : 0.3 m/s
Overswing : < 10°
Potentiometer linearity : 0.3 %
Potentiometer resistance : 5 k Ohm
Potentiometer supply : 50 V / 10 mA max.
Vane turning radius : 130 mm
Connection : 6 m cable with 5 pin circular plug
pin 1 : poti 3 / pin 2 : poti 2 / pin 3 : poti 1
Ambient temperature : -40°C...+60°C
Ambient humidity : 0...100 % RH
Fastening : female thread M8
body dimensions : 35 mm (D) x 142 mm (H)
Weight : 0.5 kg
DR. ALFRED MÜLLER
METEOROLOGISCHE INSTRUMENTE KG
R. FUESS
6
Instructions for
1. Putting into Operation and Adjusting of the Wind Direction Sensor
Bring the tripod of the mast in a proper position and fix the clamp screw. Mount the cross arm
and wind sensors on the not extended mast, insert the sensor cable plug (s) into the display
socket (s) and switch the display on. The adjusting of the direction sensor to the north can be
carried out as follows.
a. Look for a mark in north of your position by using the compass.
b. Unlock the clamp screw of the adjusting ring and the fixingscrew of the sensor.
c. Turn the wind vane in direction to the chosen mark
d. Turn the body of the sensor till the display shows 360°
e. Tighten the fixing screw of the sensor and the clamp screw of the adjusting ring.
Now the wind sensors can be brought to its measuring level by pulling out the tubes of the
mast one after the other and fix them with the clamp rings. If necessary the mast can be
stabilised by span rope’s.
2. Recharging the Ni MH accumulators
For recharging the accumulators you have to connect the power pack to the display. The
display can either be switched on or of during recharging of the accumulators. With display
switched off, the charging time will take approx. 14 h, with display switched on it will take
approx. 20 h.
3. Replacing of the accumulators
After some years the accumulators will be exhausted and have to be replaced. First switch off
the display and put it on the table with the rear side showing upwards, then remove the four
screws and the back carefully. Remove the plug connector from the accumulator holder and
remove the accumulators from the accumulator holder. Do not throw the accumulators into
the domestic waste. Replace the accumulators by new ones, connect the plug connector to the
battery holder and fix the back to the housing. Fix the back by means of the four screws.
Please be aware that new accumulators are not fully charged; their full capacity will only be
reached after a few charging and discharging cycles.
4. Re-adjusting of wind speed on the Display AE402-D
After many year’s operation it can become necessary to readjust the speed display. To do that,
you have to use an oscillator with an exact frequency of 200 Hz and a pulse duty factor of 0.5 and
an open collector output, which corresponds to a wind speed of 50 m/s = 97.2 kn. .
The adjusting has to be done as follows:
a. Remove the back of the display (as to replace the accumulators) and the two mantel
pieces.
b. Connect the oscillator output to pin 4 and 5 of the sensor connector.
c. Switch the display on and to “kn”. and “inst” and put the display in its typical position in
front of you on a table.
Now you can turn at the potentiometer (positioned between lamp 350° and lamp 360°) till the
display shows 97.2 kn.
DR. ALFRED MÜLLER
METEOROLOGISCHE INSTRUMENTE KG
R. FUESS
7
Telescopic Mast TKM10
The telescopic mast TKM10 is a portable mast made from aluminium with a tripod. It consists
of 7 tubes with diameters from 90 mm to 30 mm. To secure the mast against strong wind span
rope’s are included. To fix a Sensor or crossarm on the mast there is a threaded bolt (M8) on
the top of the mast.
It can be used to support meteoroligical sensors and antennas for wireless data transmission,
with confortable handling for installation of the mast and maintenence of sensors and
antennas. A detailed installation instruction for sensors and mast is included with the
equipment.
Specifications:
High over ground : from 2 to10 m
Radial range of the tripod : 1.1 m
Quantity of the segments : 7
Material : anodised aluminium and stainless steel
Rigging : 3 span ropes, made from 2.5 mm stainless steel
Load : up to 5 kg
Weight incl. accessories : 25 kg
Connection on the top : addapted to the requirements of sensors or crossarm
Telescopic Mast TKM6
The telescopic mast TKM6 is a portable mast made from aluminium with a tripod. It consists
of 5 aluminium tubes with diameters from 70 mm to 30 mm. The mast can be extended to a
high from 1.4 m to 6 m. To secure the mast against strong wind span rope’s are available. To
fix a Sensor on the mast there is a threaded bolt (M8) on the top of the mast. It can be used to
support meteoroligical sensors and antennas for wireless data transmission, with confortable
handling for installation of the mast and maintenence of sensors and antennas. A detailed
installation instruction for sensors and mast is included with the equipment.
Specifications:
High over ground : from 1.4 m to 6m
Radial range of the tripod : 1.1 m
Number of tubes : 5
Material : anodised aluminium and stainless steel
Transport dimensions : 120 mm x 120 mm x 1400 mm
Weight : 12 kg
Material : anodised aluminium and stainless steel
Connection on the top : addapted to the requirements of sensors or crossarm
DR. ALFRED MÜLLER
METEOROLOGISCHE INSTRUMENTE KG Tel.: +49 3375 9025-32
Fax: +49 3375 9025-36
Chausseestraße 39 / 42c
www.rfuess-mueller.de
