Lambrecht meteo 15189 User manual

(15189 analog) Precipitation Sensor Operating Instructions
Operating Instructions
Precipitation Sensor (15189 analog)
Features
►Precipitation sensor for automatic weather stations
►Linearised pulse output, e. g. for connection to external data loggers
►Selectable analog output signals, e g. for easy connection to PLC
►Selectable measuring ranges as well as absolute or gliding sum for the analogue output signals
►Exchangeable, weighing tipping bucket system according to Joss-Tognini, overflow proof
►2 cm³ tipping bucket (2 g water) for precise precipitation measuring in regions with normal rain falls
►4 cm³ tipping bucket (4 g water) for precise precipitation measuring in regions with heavy rain falls / tropical rain
►Winter-fit model (15189 H analog) with electronically controlled 2-circuit heating
►Weatherproof materials (anodized aluminium, stainless steel) guarantee a long durability
►Funnel according to the WMO Standard No. 8
1

(15189 analog) Precipitation Sensor Operating Instructions
Operating Instructions
Precipitation Sensor (15189 analog)
Installation
Mounting of the sensor
The sensor must be mounted on a tube or pole with an outer
diameter of 60 mm. A metallic extension tube with a mini-
mum length of 100 mm is recommended, if a wooden pole
is used.
For easy adjustment place a spirit-level on the upper measur-
ing edge.
Attention! Do not damage the measuring edge!
Place the sensor on the end of the pole until it fits in. By us-
ing the allen key (4 mm) provided, tighten the screws in the
mounting pedestal evenly. Adjust the upper measuring edge to
an exact horizontal position. By doing this, the tipping bucket
will automatically be positioned vertically inside the device and
will work symmetrically to the collecting funnel.
Function
The weighing precipitation sensor (15189 analog) meas-
ures the rain quantity by a tipping bucket developed by Joss-
Tognini, the bearings of which have been arranged for low
friction. Errors that normally occur due to incomplete draining
because of surface tension are automatically compensated
by the specific form of the tipping bucket.
The tipping bucket can hold 2 cm³ (2 g) resp. 4 cm³ (4 g) of
water. The collecting surface of 200 cm² (WMO standard)
means that one bucket charge is equivalent to a precipitation
rate of 0.1 mm resp. 0.2 mm per square meter.
If the bucket is tipped, the reed contact that is integrated in
the sensor will be closed. This signal can be sent as pulse
or analog.
The bounce-free, linearised pulse output is permanently
available parallel to an analog current or voltage output.
Thus an unproblematic integration into a PLC can be carried
out.
The analog output can be deactivated for operation in
low power mode. In this case the precipitation sensor can
be supplied separately from the signal circuit (see fig. 13) or
direct via the signal voltage (see fig. 12).
For application in snowfall regions the heated variety (15189
analog) is available for all-year-round measurements. Two
separate controlled heating circuits with lowest hysteresis
are providing an optimal temperature at which snowing up of
the sensor will normally be prevented and evaporation from
the heated surfaces will be minimized.
The precipitation sensor (15189 analog) is mounted on a
pedestal that is equipped with a connection piece and are at-
tached to a tube with an outside diameter of 60 mm.
The precipitation sensor (15189 analog) is made of weather-
resistant aluminium and stainless steel. This assures a long
durability.
Dimensional drawing
Fig. 1
Fig. 0
Mounting of the protective covering
When mounting the protective covering, please make sure
that the sign "close <-- --> open" (close < - > to) is positioned
above the fixing screw. Especially when using the heated
version you have to pay attention to this step. This avoids
that the cable of the protective covering heating may block
the tipping bucket.
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2

(15189 analog) Precipitation Sensor Operating Instructions
Operating Instructions
Precipitation Sensor (15189 analog)
Dismounting of the protective covering
Loosening the screw (fig. 1) with the provided 3 mm allen key
until the protective covering can be turned right to the stop
position and take off upward then.
Attention! In order to protect the tipping bucket the
dirt spiral must be inserted in the collection funnel
(fig. 2).
Assembly of the tipping bucket
To avoid damage to the tipping bucket during trans-
port, it is separately packed and should be inserted
in the precipitation sensor on site only after mounting
the gauge on the mast.
For the assembly first you must remove the protec-
tive covering.
Attention! When fitting the tipping bucket, proceed
with utmost caution so that the sharp edges of the
tipping bucket are not damaged and the middle wall
is not bent!
During operation the tipping bucket lies on the precision buck-
et bearings. To reduce the friction, which is produced at one
tipping, the bearings are made of abrasion-resistant delrin.
The mounted tipping bucket is secured against eventual
changes of position by means of two plates.
To insert the tipping bucket, first the relocatable locking plate
C(fig. 3) must be pushed back.
Now insert the tipping bucket F. Make sure that the magnet E
attached at the middle wall of the tipping bucket rests under
the capsule with the embedded reed contact D.
Finally the tipping bucket must be secured by pushing back
the relocatable locking plate C.
A: Tipping bucket bearings
B: Fixed locking plate
C: Relocatable locking plate
D: Reed contact
E: Magnet (here shown through inclination of the bucket)
F: Tipping bucket
Fig. 2
Fig. 3
3
E
F
D
CAbb. 3

(15189 analog) Precipitation Sensor Operating Instructions
Operating Instructions
Precipitation Sensor (15189 analog)
Electrical connections
The sensor will be connected to the cable by leading the cable
through the conduit gland to the connector inside the sensor
housing. The recommended cable type is:
(2) (4) x AWG 2O CU L sw;
diameter approx. 5.1 mm
The cable should be not longer than 11 m.
When the cable is transferred inside the soil it is
recommended to protect the cable with a protecting
plastic tube.
(15189 H analog) Version with heating
The precipitation sensor (15189 H analog) comes with a
solid-state-thermostat controlled heating for collecting funnel
and drain pipe.
Electrical connections
For the connection of the heating a 2-core cable is required,
which has to apply and connected to the power supply unit
according to the connecting diagrams with heating.
The function of the heating elements can be tested also at
ambient temperatures above the control temperature of the
solid-state thermostat. For this simple test a regular magnet
has to be held close to the blue housing of the switching cir-
cuit. When reaching a surface temperature of approximately
50 °C the current will be switched off.
Both blue thermostat modules are fitted internally on the funnel
surface as well on the bottom of the housing.
The operational conditions will be indicated with colored light-
emitting diodes (LED) an the thermostatic module:
Initial operation
If the sensor system has been completely mounted and
electrically assembled, the sensor will be ready for operation
according to the sensor settings. The operational check has
to be performed.
Maintenance and operational check
The precipitation sensor (15189 analog) is nearly main-
tenance-free. The sensor should be checked and cleaned
periodically in order to guarantee its proper operation, since
dirt accumulation may cause errors of measurement. The time
interval of cleaning depends on the local conditions.
The operational check of the sensor may be performed by
the use of artificial precipitation. The contents of a 200 cm³
resp. 400 cm³ (by 4 cm³ buckets ) test container of water must
be conducted into the collecting funnel through a nozzle in
such a way that the drops fall into the funnel beside the outlet.
The nozzle of the test container (approx. diameter 0.6 mm)
should be adjusted to allow a complete water run out into the
funnel within 10 to 20 minutes.
After the artificial precipitation has gone through, 100 ± 2
bucket tippings should have been counted.
Rinse the sensor thoroughly for cleaning. Clinging particles
of dirt in the collecting funnel or outlet pipe may be removed
with a piece of wood.
If unsatisfying measurement results occur after this cleaning
procedure, the tipping bucket should be disassembled for
cleaning.
Please take care not to damage the tipping
bucket!
The dismounted tipping bucket can be cleaned by placing it
in warm water with some scouring material and by carefully
scraping off unwanted dirt using a small piece of wood.
Warranty
Please note the loss of warranty and non-liability by unau-
thorised manipulation of the system. You need a written
permission from LAMBRECHT meteo GmbH for changes
of system components. These activities must be operated
by a qualified technician.
The warranty does not cover:
1. Mechanical damages caused by external impacts (e. g.
icefall, rockfall, vandalism).
2. Impacts or damages caused by over-voltages or elec-
tromagnetic fields which are beyond the standards and
specifications in the technical data.
3. Damages caused by improper handling, e. g. by wrong
tools, incorrect installation, incorrect electrical installation
(false polarity) etc.
4. Damages which are caused by using the device beyond
the specified operation conditions.
green
red
green: supply voltage
red: heating on
Fig. 4
4
TIP

(15189 analog) Precipitation Sensor Operating Instructions
Operating Instructions
Precipitation Sensor (15189 analog)
Connecting diagram with heating Connecting diagram without heating
Basic settings (Fig. 5)
Unless otherwise agreed the precipitation sensor (15189
analog) will be delivered with following basic settings:
· Active pulse output: linearised • bounce-free signal
· Measuring range: 0...10 mm
· Active analog output: 0...20 mA
· Analog output of the absolute sum of precipitation
· Current consumption: ≤40 mA
· Supply voltage: 18...30 VDC • max. load 600 Ω
Fig. 5
Fig. 6 Fig. 7
5

(15189 analog) Precipitation Sensor Operating Instructions
Operating Instructions
Precipitation Sensor (15189 analog)
Further setting options
Changes of the basic settings are urgently allowed
in power-off mode. Only if necessary, changes of
the basic setting should be carried out by skilled
technician.
Changes of settings will be accepted only after recon-
necting the power supply. Changes of the jumpers
during operation are not allowed.
Please note, changes of the basic settings by users
will be carried out on own responsibility. The manu-
facturer is not liable for consequential damages.
Overview of the selectable operating modes
• 4 analog outputs selectable:
0...20 mA · 4...20 mA • 0...5 V · 0...10 V
• 4 final values of the measuring ranges* for the analog
outputs selectable: 10 / 20 / 25 / 50 [mm]
• 4 time-frames of the analog outputs for gliding summa-
tion selectable: 1 / 10 / 30 / 60 [minutes]
• 2 modi for low power operation regarding pulse output
and power supply selectable
Functions of the jumpers
See also tab. 1:
• J3 to select the required mode (Pos. 1-8)
• J4, J5 to switch on the respective analog output
• J6 to switch over the analog voltage output
• J12 to connect the switch output to the power supply for
2 wire circuit of the low power modi (not plugged = power
supply and pulse output are separated)
• J10 must be plugged always at the middle position,
see fig. 14!
Fig. 8: Positions of the jumpers, which are usable for changes
of modi
* These data refer to 2 cm3volume of tipping bucket.
Tab. 1: Setting options
"x" ... jumper plugged; "-" jumper unplugged
Services:
97.15180.000 000 User-specific configuration
of the precipitation sensor
Note: This service is required, if the basic settings of the
should be modified by factory.
In principle the changes of the configuration can be carried
out on-site by user themselves.
J3 J4 J5 J6 J12
Position
Mode
12345678
0...20 mA - - x x -
4...20 mA - x x x -
0...5 V x - x x x
0...10 V x x x x -
10 mm - - x x
20 mm - x x x
25 mm x - x x
50 mm x x x x
1 minute - - x x
10 minutes - x x x
30 minutes x - x x
60 minutes x x x x
Low Power, only
pulse output
separate
pulse output
--------- - -
Low Power, only
pulse output
2 wire circuit
-----------x
Analog output,
absolute sum
-x x x
Analog output,
gliding sum
x- x x
6
J12
J3
J4
J5
J6
J10

(15189 analog) Precipitation Sensor Operating Instructions
Operating Instructions
Precipitation Sensor (15189 analog)
Fig. 9
Fig. 10
Fig. 11
Example 1 (Fig. 9): Active analog output 4...20 mA, otherwise like basic setting
Example 2 (Fig. 10): Active analog output 0...5 V, otherwise like basic setting
Example 3 (Fig. 11): Active analog output 0...10 V, otherwise like basic setting
7

(15189 analog) Precipitation Sensor Operating Instructions
Operating Instructions
Precipitation Sensor (15189 analog)
Example 4 (Fig. 12): Low Power Mode - 2 wire circuit
· Deactivated analog output
· Active pulse output: linearised • bounce-free signal
· Current consumpt.: max. 100 μA · typical 50 μm
· Supply voltage: 5...30 VDC
Example 5 (Fig. 13): Low Power Mode - PLC Interface
· Deactivated analog output
· Active pulse output: linearised • bounce-free signal
· Current consumpt.: max. 100 μA · typical 50 μm
· Supply voltage: 5...30 VDC
Fig. 12
Fig. 13
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(15189 analog) Precipitation Sensor Operating Instructions
Operating Instructions
Precipitation Sensor (15189 analog)
Explanations of the operating modes
1. Pulse output
The pulse output is permanent activated. The linearised pulses
are emitted with a pulse duration of 125 ms. The maximum of
output pulses are 100 output signals per minute.
Attention! To avoid damages an additional, current
limited resistor of 2...10 kOhm is necessary in that
case, when the pulse output is connected to the
power supply via jumper J12 (see fig. 12).
The operating mode „2 wire“ is not allowed in
combination with analogue output signals.
2. Absolute sum of precipitation
At this operating mode the accumulated amount of precipita-
tion is emitted as analog signal up to the final value of the
selected range. At exceeding of this final value a new sum-
mation starts, i. e. the analog signal starts again on the low
level (sawtooth diagram).
3. Gliding sum of precipitation
At this operating mode the accumulated amount of precipita-
tion, which is updated each minute, is emitted within the se-
lected time-frame. At exceeding the final value of the selected
range the analog signal remains on the highest level up to the
gliding sum over the adjusted time-frame will be lower than
the final value again. This means that the signal is limited and
will not reset like the absolute sum.
4. Reset of the analog output signal
By an external switch at the pins "RESET ANALOG OUTPUT"
(see fig. 9 to 11) the analog output can be reset to the starting
value of the output range.
This means e. g. that at the range of 4...20 mA the output will
be reset at 4 mA. The summation starts at zero again.
Blank board (Fig. 14):
Here you can register your specific jumper setting, e. g. for service purposes.
Fig. 14
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(15189 analog) Precipitation Sensor Operating Instructions
Operating Instructions
Precipitation Sensor (15189 analog)
Technical data
(15189 analog) Version with 2 cm3 bucket, unheated
Id-No. 00.15189.002 050
Measuring principle: Weighing tipping bucket designed acc.
to Joss-Tognini
Range of application: 0...+70 °C - measuring
Measuring range: 2 cm³ (2 g water) - volume of bucket
0...8 mm/min
Resolution: 0.1 mm
Accuracy: ± 2 %
Dimensions: See dimensional drawing
Suitable for mounting: Ø 60 mm
Weight: Approx. 4 kg
Standards: WMO-No. 8 • VDI 3786 Bl. 7
EN 50081/82 • VDE 0100
Analog outputs: 0...20 mA = basic setting
4...20 mA • 0...5/10 V - selectable
Current consump.: ≤40 mA
Supply voltage: 18...30 VDC • max. load 600 Ω
Pulse output for linearised, bounce-free output signal
At deactivated analog output:
Current consump.: Max. 100 μA · typical 50 μA
Supply voltage: 5...30 VDC
Switch load: Max. 30 VDC/ max. 0.5 A - at pure ohm
load
(15189 W4 analog) Version with 4 cm3 bucket, unheated
Data like (15189 analog), but for very high precipitation intensity
Id-No. 00.15189.004 050
Measuring range: 4 cm³ (4 g water) - volume of bucket
0...16 mm/ min
Resolution: 0.2 mm
(15189 H analog) Version with 2 cm3bucket, heated
Data like (15189 analog) 00.15189.002 050, but in addition
with controlled 2-circuit-heating:
Id-No. 00.15189.402 050
Heating data: Electronic controlled, dual-circuit
Accuracy: 4 °C ± 2 °C, controlled temperature
within a range of -20...+4 °C
Heating power: 80 W (funnel)
70 W (outlet/ tipping bucket)
Supply voltage: 24 VDC / 150 W
Range of application: -20...+70 °C (no icing, no snowdrift)
(15189 H W4 analog) Version with 4 cm3bucket, heated
Date like (15189 W4 analog) 00.15189.004 050, but in addi-
tion with controlled 2-circuit-heating, like (15189 H analog)
Id-No. 00.15189.404 050
General accessories:
32.15188.061 090 (15188 U61i) Connecting cable (4-core)
sensor/ data logger, L = 7 m
00.15180.400 000 (1518 S4) Stainless steel mast for con-
crete foundation
00.15180.800 000 (1518 S8) Stainless steel mast for con-
crete foundation with base plate
32.15180.021 010 (1518 U21a) Bird protection ring
33.15180.049 000 (1518-49) Dirt spiral (spare part)
For heated versions:
00.14966.200 000 (1496 S62) Power supply unit
32.15188.061 020 (15188 U61b) Connecting cable
sensor/ power supply unit for mounting
at the mast; L≈1 m (4-core)
32.14622.220 000 (14622 S22) Holder for power supply
unit on the mast
Services (see page 6):
97.15180.000 000 User-specific configuration of the pre-
cipitation sensor
Safety instructions
This system is designed according to the state-of-the-art
accepted safety regulations. However, please note the fol-
lowing rules:
1. Before setting into operation, please read all appropriate
manuals!
2. Please take notice of internal and state-specific guidelines
and/or rules for the prevention of accidents (e.g. the pro-
fessional association). If necessary ask your responsible
safety representative.
3. Use the system according to the manual’s regulations
only.
4. Always leave the manual at hand at the place of work of
the system.
5. Use the system in technically correct conditions only! You
have to eliminate influences immediately, which impair the
security .
6. Please note the loss of warranty and non-liability by unau-
thorized manipulation of the system. You need a written
permission of the LAMBRECHT meteo GmbH for changes
of system components. These activities must be operated
by a qualified technician.
7. Prevent the ingress of liquids into the devices without
permission.
Subject to change without notice.
10
LAMBRECHT meteo GmbH Tel [phone]
Friedländer Weg 65-67 Fax [phone]
37085 Göttingen E-Mail [email protected]
Germany Internet www.lambrecht.net
15189_Analog_b-de.indd 30.16
Quality System certified by DQS according to
DIN EN ISO 9001:2008 Reg. No. 003748 QM08