Lambrecht rain[e]observer Operating Instructions Manual
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Lambrecht rain[e]observer Operating Instructions Manual

Precipitation measuring system
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Operating Instructions
rain[e]observer Precipitation Measuring System
rain[e]observer
Complete system for measuring
►
►
►
Features
•
High-end solution for your precise measurements of precipitation quantity, intensity and 16 differ-
ent types of precipitation (in accordance with WMO standard)
•
The radar module of the rain[e]observer operates without moving parts and is therefore wear and
tear-free
•
Save time and money with easy installation and maintenance
•
Plug & play upgrade set for the rain[e] series
rain[e]
is the weighing precipitation sensor with its unique, self-draining collection system
rain[e]
combines the highest resolution and precision in a very compact design
rain[e]observer
Amount of precipitation
Precipitation intensity
16 types of precipitation
Operating Instructions
1

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Summary of Contents for Lambrecht rain[e]observer

  • Page 1 High-end solution for your precise measurements of precipitation quantity, intensity and 16 differ- ent types of precipitation (in accordance with WMO standard) • The radar module of the rain[e]observer operates without moving parts and is therefore wear and tear-free •...

  • Page 2: Table Of Contents

    Operating principle Scope of delivery Choosing the installation site Connecting cables for rain[e] precipitation sensor and heating Initial operation General Wiring the rain[e] as rain[e]observer · Internal connection diagram 9.2.1 Opening the housing 9.2.2 Changing the wiring 9.2.3 Closing the housing 9.3...
  • Page 3 Operating Instructions rain[e]observer Precipitation Measuring System Changing the serial interface from SDI-12 (default) to RS485 13.1 Opening the housing 13.2 Change the device’s internal wiring 13.3 Change the output protocol 13.4 Closing the housing Checking and troubleshooting Observer module maintenance...

  • Page 4: General Safety Information

    Note the loss of warranty and exclusion of liability in the event of unauthorized access to the system. Changes to or interventions in system components may only be made with the explicit approval of LAMBRECHT meteo GmbH by qualified staff.

  • Page 5: Introduction

    Precipitation Measuring System Introduction With the extension set described here and the electric module, in addition to the amount and intensity of precipita- tion, the rain[e] can use radar measurements to differentiate between 16 types of precipitation and thus becomes a rain[e]observer. These instructions describe the installation and commissioning of the rain[e]observer and the extension set. Operating principle The rain[e]observer’s Doppler radar sends electromagnetic waves in the mW range upwards via a transmitting antenna array, i.e. towards the precipitation. The frequency used is internationally approved for measurements of this kind. The receiving antenna array of the sensor receives the signal reflected by the droplets or particles, from...

  • Page 6: Connecting Cables For Rain[E] Precipitation Sensor And Heating

    Operating Instructions rain[e]observer Precipitation Measuring System Connecting cables for rain[e] precipitation sensor and heating To connect the rain[e] to a data collection device such as the PreLOG data logger, you require a connection cable with an M12 plug (ID no. 32.15184.060000). To power the heating you need a power cable (ID no.

  • Page 7: Initial Operation

    Operating Instructions rain[e]observer Precipitation Measuring System Initial operation General There are different versions of the rain[e], which have already been prepared for the observer module upon delivery. With the rain[e] versions that are not prepared for the observer module, two additional installation steps have to be carried out first.

  • Page 8: Wiring The Rain[E] As Rain[E]Observer · Internal Connection Diagram

    Operating Instructions rain[e]observer Precipitation Measuring System Wiring the rain[e] as rain[e]observer · Internal connection diagram If the observer module is retrofitted to a rain[e] precipitation sensor or if it is not supplied with a rain[e] prepared for the rain[e]observer, the configuration of the 8-pin device plug in the precipitation sensor must be wired in ac- cordance with the following connection diagram. It is important that the configuration of wires with the thick lines (WH, BN, GY, PK) is strictly adhered to.

  • Page 9: Opening The Housing

    Configuration of the rain[e] as a rain[e]observer If this has not yet happened upon delivery, the rain[e] precipitation sensor must be reconfigured with the rain[e] commander in order to use the observer module. Depending on the version, the rain[e] commander can be downloaded from the Lambrecht website or is included with the sensor upon delivery. For the configuration, the rain[e] does not have to be supplied with electricity but is fed via the service USB interface.
  • Page 10 The precipitation type is only available in the SDI-12 extended protocol or the Modbus protocol. Other protocols can also be selected but these do not support the output of precipitation type. (For further details see the section on “Protocols of the rain[e]observer”.) 6. Send the new configuration to the rain[e] by pressing the button...

  • Page 11: Installation Of The Rain[E] At The Installation Site

    Operating Instructions rain[e]observer Precipitation Measuring System Installation of the rain[e] at the installation site 9.4.1 Choosing the installation site To minimize possible spraying, it is recommended that you avoid locations with a hard floor surface such as concrete and to install the precipitation sensor instead on grass or another soft surface. In general, the sensor should not be placed on roofs or slopes. In accordance with DWD standards, we recommend installing the...

  • Page 12: Integrated Collection Container

    Operating Instructions rain[e]observer Precipitation Measuring System 9.4.3 Integrated collection container Illustrations using the rain[e] • Open the device ◦ Unscrew the knurled screw on the underside. ◦ Grasp the upper edge of the funnel and the mast shaft and turn the upper section counterclockwise (open).
  • Page 13 Operating Instructions rain[e]observer Precipitation Measuring System rain[e] inner workings without the collecting container • Unpack the collecting container. • Installing the collecting container ◦ Press the collecting container with the magnetic side towards the reed contact against the bearing spring.
  • Page 14 Operating Instructions rain[e]observer Precipitation Measuring System Use a spirit level to level the device by tightening the hexagonal screws evenly on the base. • Reassembly ◦ Carefully reinsert the inner protective cylinder. ◦ Connect the clamping plug for the heating.

  • Page 15: Installation Of The Observer Module

    Operating Instructions rain[e]observer Precipitation Measuring System Installation of the observer module Required tools • Combination spanners or socket wrenches o SW7 turnbuckle 5-pol. (Optional slot 6.5 x 1.2) o SW13 nut (mast) • Allen key o SW4 grub screw (traverse) rain[e] Observer-Modul rain[e] Observer-Modul Pos. Anzahl Bauteilnr. Benennung 32.15184.200000 Observer Modul 32.15184.301000...

  • Page 16: Installing The Mast Mount For The Traverse

    Operating Instructions Montage Observer Modul rain[e]observer Precipitation Measuring System Installing the mast mount for the traverse Mast bracket assembly Hold the mast bracket at the desired position of the mast in order to select the appropriate recess to guide the hose clamp, so that a good junction is created between the mast, 5-pol.

  • Page 17: Connecting The Rain[E]Observer - Connecting The System Cabling

    Operating Instructions rain[e]observer Precipitation Measuring System Connecting the rain[e]observer - Connecting the system cabling 9.7.1 Connecting cables to the observer module and the rain[e] rain[e] Observer-Modul rain[e] bserver-Modul Bauteilnr. Benennung 84.200000 Observer Modul 84.301000 rain[observer] Anschlussbox 001.072000 Typenschild WN1-72 627.001010 Alu-Profil 8 40x16 E 0,75 m 627.002000...

  • Page 18: Connection Diagram

    9.7.2 Connection diagram System start The entire rain[e]observer system starts automatically as soon as the sensor cable is connected. Once the system starts, an LED on the main circuit board of the precipitation sensor lights up for three seconds and then changes to rapid flashing during operation. The observer module shows a green light for about five minutes after the power...
  • Page 19 Operating Instructions rain[e]observer Precipitation Measuring System Implemented SDI-12 commands: Command Function Sensor response Activity confirmation a<CR><LF> Address query command a<CR><LF> Send identification allccccccccmmmmmmvvvxx...xx<CR><LF> aAb! Change address b<CR><LF> Start measurement atttn<CR><LF> aMC! Start measurement with CRC atttn<CR><LF> Start parallel measurements atttnn<CR><LF> aCC! Start parallel measurements with CRC atttnn<CR><LF> aD0! Send data (buffer 0) a<Werte<CR><LF>...
  • Page 20 Operating Instructions rain[e]observer Precipitation Measuring System Syntax Command Response a<CR><LF> a – Sensor address a – Sensor address ! – Command end <CR><LF> – End of response Example: Command Response 0<CR><LF> 1<CR><LF> Send identification - aI! The command aI! Requests the sensor to return its model number and firmware version. Syntax...
  • Page 21 Operating Instructions rain[e]observer Precipitation Measuring System Syntax Command Response aAb! b<CR><LF> a – Old sensor address b – New sensor address A – Command - Other address b – New sensor address ! – Command end <CR><LF> – End of responset...
  • Page 22 Operating Instructions rain[e]observer Precipitation Measuring System Start measurement with CRC - aMC! The same command as aM! but the sensor also sends a 3-digit CRC checksum in addition to the prepared measurement data. For further information on generating this CRC checksum, we refer you to SDI-12 Standard, version 1.3, 2012, section 4.4.12. Syntax Command Response aMC! a0036<CR><LF> a – Sensor address a – Sensor address M – Command - Start measurement 003 –...
  • Page 23 Operating Instructions rain[e]observer Precipitation Measuring System Start parallel measurement with CRC - aCC! The same command as aC! but the sensor also sends a 3-digit CRC checksum in addition to the prepared measurement data. For further information on generating this CRC checksum, we refer you to SDI-12 Standard, version 1.3, 2012, section 4.4.12. Syntax Command Response aCC! a00306<CR><LF> a – Sensor address a – Sensor address C – Command - Start parallel measurement 003 –...
  • Page 24 Operating Instructions rain[e]observer Precipitation Measuring System Send data - aD0! / aD1! / aD2! aD3! and D4! (SDI-12 extended) In the following section, only the output of the measurement values in the SDI-12 extended protocol is described. The order of measured values in the buffers D0 and D1 corresponds to the Rain[e]’s original SDI-12 output, while the SDI-12 extended protocol provides information and readings in the buffers D2 and D3. The type of precipitation code is output in buffer D4.
  • Page 25 Operating Instructions rain[e]observer Precipitation Measuring System Synop-based precipitation codes The following chart shows the keys of the recognizable types of precipitation based on the Synop table 4680, prohibitions and restrictions, volume D supplement 6 valid for automatic stations. SYNOP keys...
  • Page 26 Operating Instructions rain[e]observer Precipitation Measuring System Syntax for measurements with aCC! or aMC! Command Response aD0! a<values><CRC><CR><LF> a – Sensor address a – Sensor address D – Command - Send data <values> – Called up data separated by 0 – Request for data from corresponding prefix (“+” or “-”) Buffer 0 <CRC> – 3-digit CRC checksum...

  • Page 27: Modbus Protocol

    Operating Instructions rain[e]observer Precipitation Measuring System Start verification - aV! (Error string) The aV! command is used to carry out a system analysis for service purposes and to create an error string. It has the same format as the command aM! (see above). The rain[e] responds to it with a0039.

  • Page 28: Device Address

    9 u[sonic] 10 Pyranometer 2nd Class 11 Secondary standard pyranometer 12 PT100 to Modbus converter (temperature) 13 u[sonic]WS7 Byte frame in accordance with Modbus standard for RTU mode: 8E1 (1 start bit, 8 data bits, 1 parity bit (even parity), 1 stop bit) 11.4 Modbus command set The Lambrecht Modbus sensors support the following commands. • Read holding register command: 0x03 (descriptive sensor data register) • Read input register command: 0x04 (measurement value register, each measured value to be requested individually) • Write multiple register command: 0x10 (writing in configuration register) rain[e]observer...

  • Page 29: Measured Value And Parameter Register Lambrecht Sensors

    Precipitation Measuring System 11.5 Measured value and parameter register Lambrecht sensors The register range 30001 to 35000 is provided for measured values in the Lambrecht sensors. The following measured values are provided by the Rain[e] precipitation sensors. Register Parameter name...

  • Page 30: Special Case Of Precipitation Amount

    Operating Instructions rain[e]observer Precipitation Measuring System The following chart shows the keys of the recognizable types of precipitation based on the Synop table 4680, prohibitions and restrictions, volume D supplement 6 valid for automatic stations. Register addresses 30001 to 35000 apply to all Lambrecht Meteo Modbus sensors, but are only present or valid if the respective sensor supports the corresponding values (e.g a pure wind sensor does not provide any air humidity). Lambrecht sensors return 0xD8F1=-9999(16 bit) or 0xFF676981=-9999999 (32 bit) as an error code or invalid value.

  • Page 31: Descriptive Sensor Parameter Register (Holding Register)

    Operating Instructions rain[e]observer Precipitation Measuring System 11.8 Descriptive sensor parameter register (holding register) Register Parameter name Number of Note Access type registers 40050 Device identification number 8 (2 characters The returned data have the Read only in each register) form of a 16 byte string with (15 characters) zero termination.

  • Page 32: Autoconfiguration

    Precipitation Measuring System 11.10 Autoconfiguration All Lambrecht Modbus sensors provide the experienced user with the option of implementing auto-configuration in his Modbus master based on additional information stored in the sensor. The required information can be found in the document General Instructions for Lambrecht Meteo Modbus Sensors. 11.11 Total amount of precipitation To measure the amount of precipitation from dataset to dataset using the serial protocols (e.g. SDI 12, Talker, Modbus), the difference between the total amount of precipitation and the previous reading must be calculated.

  • Page 33: Changing The Serial Interface From Sdi-12 (Default) To Rs485

    Operating Instructions rain[e]observer Precipitation Measuring System 4. Select the desired protocol in the operating mode field in the serial interface RS485/SDI-12 group. The precipitation type is only available in the SDI-12 extended protocol or the Modbus protocol. Other protocols can also be selected but these do not support the output of precipitation type. 5. If necessary, you can change the operating mode in the pulse output isolated group. You can choose between pulses, rain yes/no and heating on/off.

  • Page 34: Change The Device's Internal Wiring

    Operating Instructions rain[e]observer Precipitation Measuring System • Pull out the clamping plug for the upper heating section and put the housing in a safe place. When putting the housing upper section aside, avoid placing it on the cutting edge of the receiver opening, in order not to damage it. 13.2 Change the device’s internal wiring The following internal wiring is recommended.

  • Page 35: Closing The Housing

    Parity: even Stop bits: Other protocols can also be selected but these do not support the output of precipitation type. For further details see the section Protocols of the rain[e]observer. The changes to the output protocol are in accordance with the section Changing the communication protocol. 13.4 Closing the housing 1. Connect the clamping plug of the heating and position the upper housing section in such a way that the open/ close sticker sits over the knurled screw.

  • Page 36: Observer Module Maintenance

    The cover surface should not be touched with the palms of hands or fingers, in order to avoid contamination with sebaceous matter. Attention: Do NOT clean the housing cover with a microfiber cloth. If you need help with solving any problems that may occur, please contact Lambrecht meteo service at Tel +49-(0)551-4958-0 E-mail support@lambrecht.net...

  • Page 37: Storage And Handling

    Precipitation Measuring System Storage and handling The rain[e]observer should be stored in its original packaging in a dry place (relative humidity < 60 %) and at moderate temperatures (5...25 °C). The storage temperature range specified in the technical data should not fall below or exceed this. The rain[e]observer must be transported in its original packaging. Accessories and spare parts General accessories 32.15184.060 000 Connection cable with M12 plug (sensor data logger);...

  • Page 38: Dimensions Rain[E]Observer

    Operating Instructions rain[e]observer Precipitation Measuring System Dimensions rain[e]observer Datum Name Benennung Revision Bearb. 26.07.2021 kreitz rain[e] Observer Bemaßung Gepr. Norm. Artikelnummer Blatt 32.15184.300000 1 / 1 Zust. Änderungen Datum Name Dateiname Ersatz für: raine_observer_bemaßung.idw rain[e]observer Operating Instructions...

  • Page 39: Connection Cable (Sensor / Data Logger)

    Operating Instructions rain[e]observer Precipitation Measuring System Connection cable (sensor / data logger) 19.1 Technical data connection cable Connection cable ID no. 32.15184.060000 General data Rated current at 40°C Rated voltage 30 V AC Number of terminals Contact resistance ≤ 5 mΩ Insulation resistance ≥ 100 MΩ Cable length...

  • Page 40: Connection Cable Drawings

    Operating Instructions rain[e]observer Precipitation Measuring System 19.2 Connection cable drawings Schematic representation Circuit diagram Pin assignment M 12 socket, 8-pin, A-coded, socket side view Contact assignment of the M12 socket Dimensional drawing 44,5 M12 x 1 socket straight, shielded rain[e]observer...

  • Page 41: Heating Cable

    Operating Instructions rain[e]observer Precipitation Measuring System Heating cable 20.1 Technical data heating cable Heating cable ID no. 32.15184.061010 (length = 10 m) ID no. 32.15184.061000 (length = 1 m) Environmental conditions Protection type IP65/IP67 General Rated current at 40°C 12 A Rated voltage 63 V DC Rated impulse voltage 1.5 kV...

  • Page 42: Heating Cable Drawings

    Operating Instructions rain[e]observer Precipitation Measuring System 20.2 Heating cable drawings Schematic representation Circuit diagram Dimensional drawing 53,2 rain[e]observer Operating Instructions...

  • Page 43: Technical Data, Rain[E] Precipitation Sensors

    Operating Instructions rain[e]observer Precipitation Measuring System Technical data, rain[e] precipitation sensors rain[e] rain[e]314 rain[e]400 rain[e]H3 heated, preconfigured heated, preconfigured heated, preconfigured heated, preconfigured ID no. 00.15184.400900 00.15184.403900 00.15184.404900 00.15184.540920 Measurable precipitation Liquid, solid, mixed types Measuring principle Weighing, with automatic self-draining Operating temperature -40…+70°C *)

  • Page 44: Technical Data Observer Installation Set

    Operating Instructions rain[e]observer Precipitation Measuring System Technical data observer installation set ID no. 32.15184.300000 Measurement range See Synop code table Power current characteristics In addition to the rain[e] 14 mA at 24 V; max. 25 W in heating mode Area of application -40...70 °C (heated, no icing, no snow drifting) Storage conditions -55...+80 °C Protection type IP65 / IP67 Materials • V4A tab • Cover made of PC (polycarbonate – UV stabilized)

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