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OTT Parsivel2 Operating Instructions Manual

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Operating instructions
Present Weather Sensor
2
OTT Parsivel

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Summary of Contents for OTT Parsivel2

  • Page 1 Operating instructions Present Weather Sensor OTT Parsivel...
  • Page 2 We reserve the right to make technical changes and improvements without notice.

  • Page 3: Table Of Contents

    6.3 Installing the OTT Parsivel2 on a pedestal 7 Connecting the OTT Parsivel2 to a datalogger 7.1 Connecting the OTT Parsivel2 to an OTT netDL IP datalogger using the RS-485 interface 7.2 Connecting the OTT Parsivel2 to a datalogger via an SDI-12 interface 7.3 Connecting the OTT Parsivel2 to a datalogger with pulse input...
  • Page 4 15 Technical data Appendix A – CS command set Appendix B – SDI-12 commands and responses B.1 Basic commands B.2 Advanced SDI-12 commands Appendix C – Classification of precipitation types C.1 Class limit Appendix D – Categorization of precipitation type by precipitation codes D.1 Precipitation code according to SYNOP D.2 Precipitation code according to the NWS and METAR/SPECI w’w’, Table 4678 Appendix E –...

  • Page 5: Scope Of Supply

    2 x lock washers 1 x Allen key, 4 mm – 1 USB connection cable. USB connector type A to USB type B, 3 m – 1 OTT Parsivel PC software "ASDO", basic version – 1 set of operating instructions 2 Order numbers ▶...

  • Page 6: Ott Parsivel2 Factory Settings

    The parameters can be set with the OTT Parsivel software ASDO, or alternatively using a terminal software. Notes on setting these parameters can be found in Appendix A "CS command set" or in the "OTT Parsivel software ASDO" Oper - ating instructions.

  • Page 7: Basic Safety Information

    If person- nel do not have the required knowledge, it must be provided through training and instruction. If necessary, OTT HydroMet can provided this service on a contractual basis for the owner.
  • Page 8 Under reasonably foreseeable con- ditions, (i.e. when the device is used as intended), the accessible laser radiation is not dangerous for the eye (and for the skin). The OTT Parsivel complies with the standard IEC/EN 60825-1:2014.

  • Page 9: Introduction

    The OTT Parsivel issues one data telegram every 60 seconds. 5.1 Functional principle The theory behind the OTT Parsivel is a laser sensor that produces a horizontal strip of light. The emitter and the receiver are integrated into a single protective housing.

  • Page 10: Connection Options For The Ott Parsivel2

    Power supply OTT netDL 1000 SDI-12 Datalogger – ASDO Basic – ASDO full version OTT netDL 500 Datalogger with pulse input Storage without Storage with precipitation precipitation spectrograph spectrograph – OTT Hydras 3 Fig. 2: Connection options for the OTT Parsivel...

  • Page 11: Installing The Ott Parsivel2

    A total of two wires are available in the connection cable for the RS-485 and SDI-12 interfaces. The assignment of these wires with the RS-485 or SDI-12 inter- face is carried out by the OTT Parsivel user software ASDO or with a terminal program (factory setting: RS-485 interface).

  • Page 12: Connecting Ground To Ott Parsivel2 (Recommendation)

    CAUTION Risk of crushing when installing the OTT Parsivel The OTT Parsivel has a weight of approx. 6.5 kg! ▶ Wear protective gloves when installing the OTT Parsivel 6.2 Connecting ground to OTT Parsivel (recommendation) To ground the OTT Parsivel...

  • Page 13: Installing The Ott Parsivel2 On A Pedestal

    Feed the connection cable with the 8-pin plug from the power supply on the leg or from a control cabinet upwards through the pedestal. ■ Connect the plug to the socket in the base of the OTT Parsivel . Tighten the cap nut for the plug by hand.
  • Page 14 Evenly tighten the 6 M 8 x 16 grub screws, or M 8 x 25 depending on the diameter of the pedestal, using the 4 mm hex key provided (installation set) so that the sensor heads are horizontal as much as possible. Fig. 5: Installing the OTT Parsivel on the pedestal. Sensor head...

  • Page 15: Connecting The Ott Parsivel2 To A Datalogger

    The green and yellow cable is assigned either to the RS-485 or SDI-12 interface. The selection is carried out during setup via the OTT Parsivel user software ASDO or a terminal program. Both of these wires are assigned to the RS-485 interface at the factory.

  • Page 16: Connecting The Ott Parsivel2 To An Ott Netdl Ip Datalogger Using The Rs-485 Interface

    To call the data from the OTT Parsivel with the OTT netDL and to store them, a configuration must be set up in the OTT netDL. Figure 8 shows an OTT netDL example configuration for communication via the RS-485 interface. See also the operating instructions for the "OTT netDL IP datalogger".
  • Page 17 Fig. 8: Configuration example of an OTT netDL connected to an RS-485 interface.

  • Page 18: Connecting The Ott Parsivel2 To A Datalogger Via An Sdi-12 Interface

    Parsivel user software ASDO or using a terminal program and the command "CS/S/E/1<CR>" (see operating instructions for OTT Parsivel user software ASDO and Chapter 11 "Operating the OTT Parsivel with a terminal software").
  • Page 19 To call the data from the OTT Parsivel with the OTT netDL and to store them, a configuration must be set up in the OTT netDL. Figure 11 shows an OTT netDL example configuration for communication via the SDI-12 interface. See also the operating instructions for the "OTT netDL IP datalogger …".
  • Page 20 Fig. 11: Configuration example of an OTT netDL connected to an SDI-12 interface.

  • Page 21: Connecting The Ott Parsivel2 To A Datalogger With Pulse Input

    0.1 mm/pulse, output frequency 2 Hz 0.01 mm/pulse, output frequency 20 Hz You can set the resolution with the OTT Parsivel software ASDO or alternatively using a terminal software. Notes on setting these parameters can be found in Appendix A "CS command set" or in the "OTT Parsivel software ASDO"...

  • Page 22: Connecting The Ott Parsivel2 To A Pc

    If you want to use the RS-232-interface of a PC, you have to buy a suitable RS-485/RS-232 interface converter from a specialist dealer. (As RS-232-interfaces are not common anymore for new PCs, OTT HydroMet does not offer RS-485/ RS-232 interface converters as accessories anymore).

  • Page 23: Connecting The Ott Parsivel2 To The Rs-485/Usb Interface Converter

    RS-485 interface converter When using an interface converter that can not be purchased as an accessory from OTT HydroMet, the following must absolutely be adhered to: ▶ Interface converters must be configured in the "automatic send/receive control" mode for 2-wire connections through software commands without hardware handshake cables and "Echo-Off"!

  • Page 24: Connecting The Ott Parsivel2 To A Pc For Configuring Using A Usb Interface

    PC for configuring using a USB interface If you do not want to work with the factory settings of the OTT Parsivel and read out the data only with a datalogger, it is necessary to configure the OTT Parsivel...
  • Page 25 Select "Install from a list or specific location (Advanced)". ■ Select "Next". ■ Connect the USB stick (supplied) with the OTT USB interface drivers to another USB port on the PC ■ Select "Search for the best driver in these locations" and "Search removable media (CD-ROM, …)".

  • Page 26: Connecting The Ott Parsivel2 To A Power Supply

    9 Connecting the OTT Parsivel to a power supply OTT HydroMet offers two power supplies (accessory) for the power source: ▶ Power supply 24 V DC/100 W; protective housing version ▶ Power supply 24 V DC/100 W; control cabinet version The connection of the power supply is made with an 8-core, prepared connection cable (accessory).
  • Page 27 Fig. 16: Connecting power supply protective housing version to the OTT Parsivel Install the power supply onto the pedestal of the OTT Parsivel using the bolts and nuts Ports for connection to a datalogger supplied. In this case, the connection cable Connection has a length of one meter.

  • Page 28: Heating The Ott Parsivel2

    4 A). You can set the sensor head heating performance (operating mode, minimum temperature) with the OTT Parsivel software ASDO or alternatively using a ter - minal software. Notes on setting these parameters can be found in Appendix A "CS command set"...

  • Page 29: Operating The Ott Parsivel2 With A Terminal Software

    11.2 Measured value numbers The measurements and status values are output from the OTT Parsivel in the form of a telegram. To this end, each value that can be output was assigned a mea- surement number.
  • Page 30 S = Separator Notes: ▶ Other values in the telegram that are not listed here are for service purposes only. Please ignore them. ▶ The OTT Parsivel outputs all numerical values with a decimal point as decimal speparator!

  • Page 31: Defining The Formatting String

    %90; Output data field no. 90 with ";" as a separator Other signs can be used as well as a separator. 11.4 OTT telegram The following telegram configuration has been preset at the factory: %13;%01;%02;%03;%07;%08;%34;%12;%10;%11;%18;/r/n According to this configuration, the measurement values are displayed as in the following example: 200248;000.000;0000.00;00;–9.999;9999;025;15759;00000;0;...

  • Page 32: Updating Ott Parsivel2 Firmware

    11.5 Updating OTT Parsivel firmware OTT HydroMet provides the latest update versions to OTT software on its internet site at www.ott.com under the rubric "Software updates". The following file is needed to update the OTT Parsivel firmware: ▶ *IOP.BIN where * represents the respective version number.
  • Page 33 The data transfer runs and the window closes automatically after the data transfer has finished. ■ After the window has closed, input the command RUN <CR> to start OTT Parsivel . The firmware was successfully updated.

  • Page 34: Maintenance/Verification

    2 = Screens are dirty, partially covered. No further usable measurements are possible. 3 = Laser damaged It is a good idea to clean the laser optics beginning at Status 1. OTT HydroMet recommends that the screens be cleaned at least semiannually, regardless of the messages.

  • Page 35: Verifying Particle Size Measurements

    (centre of the laser strip). In addition, a collecting device must be used below the sensor heads to prevent damage to the struts and base of the OTT Parsivel ▶ This method of verification permits only an approximate statement.

  • Page 36: Functional Disruptions And Remedies

    (see Ch. 6 and 7). ■ If this does not work, start any terminal software program on your PC (e.g. Hyper Terminal) and try to make a connection to OTT Parsivel (see Ch. 11 "Operating the OTT Parsivel with a terminal software").

  • Page 37: Technical Data

    Size (H x W x D) 670 x 600 x 114 mm under laboratory conditions and statistically correlated by OTT calibration system with reference particle calibration of 0.5; 1.0; 2.0 and 4.0 mm power output ≥ 100 W necessary not recommended...
  • Page 38 Product certifications CE (EU) This device fulfills the essential requirements of the EMC Directive 2014/30/EU FCC (US) FCC Part 15, Class "B" limits. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including inter- ference that may cause undesired operation.

  • Page 39: Appendix A - Cs Command Set

    If the value "0" is entered for the sample interval, the Polling mode is enabled. CS/P<CR> Enabling polling mode OTT Parsivel2 issues a data telegram no later than 500 ms after receiving the command. This command disables the interval-controlled telegram. CS/PA<CR>...
  • Page 40 Value range: 0 … 9 Factory setting: CS/T/12:00:00<CR> Adjust time of day The time of day of the OTT Parsivel is set to the time of day of the PC. CS/D/01.01.2000<CR> Adjust date The date of the OTT Parsivel is set to the calendar of the PC.
  • Page 41 CS/H/U/<parameter><CR> Set threshold temperature for screen heating. If the temperature of the OTT Parsivel housing falls below the adjusted value, the the screen heating works with maximum heating power; if the temperature of the housing is higher than the adjusted value, it works with minimum heating power.
  • Page 42 Set real time clock This command sets the real time clock of the OTT Parsivel CS/U<CR> Read out real time clock With this command the current date and time of the OTT Parsivel is read out. Response: 01.01.2011 10:55:11 (example) CS/*/D/<parameter><CR>...

  • Page 43: Appendix B - Sdi-12 Commands And Responses

    Appendix B – SDI-12 commands and responses B.1 Basic commands All SDI-12 basic commands are implemented in the OTT Parsivel . The following SDI-12 basic commands are relevant for the operation of the OTT Parsivel Command Response Description Acknowledgement active a<CR><LF>...
  • Page 44 – Sensor address and after 9 seconds – Time in seconds until the sensor has a<CR><LF> determined the measurement result Response OTT Parsivel = 009 – Number of measured values Response OTT Parsivel a<CR><LF> – Service request Send data – Part 1 (after aM1!, aMC1!, aC1!, aCC1!) aD0! a<value1><value2><value3>...
  • Page 45 Comand Response Description <value5> – Temperature in the right sensorhead [°C] Measured value format: pbbb Range: –99 … +100 °C – Temperature in the left sensorhead [°C] <value6> Measured value format: pbbb Range: –99 … +100 °C – Sign (+,–) –...

  • Page 46: Advanced Sdi-12 Commands

    Microprocessor-Based Sensors; Version 1.4" (refer to website "www.sdi-12.org"). B.2 Advanced SDI-12 commands All advanced SDI-12 commands are preceded by " " which stands for OTT. Using these commands, the OTT Parsivel be configured from the Trans parent Mode of a datalogger. Command...

  • Page 47: Appendix C - Classification Of Precipitation Types

    17.000 2.000 19.000 2.000 21.500 3.000 24.500 3.000 Note: Class 1 and class 2 are limits and are not evaluated at the current time in measurements using the OTT Parsivel since they are outside the measurement range of the device.
  • Page 48 Classification according to particle speed Class number Mid-value of class [m/s] Class spread [m/s] 0.050 0.100 0.150 0.100 0.250 0.100 0.350 0.100 0.450 0.100 0.550 0.100 0.650 0.100 0.750 0.100 0.850 0.100 0.950 0.100 1.100 0.200 1.300 0.200 1.500 0.200 1.700 0.200 1.900...

  • Page 49: Appendix D - Categorization Of Precipitation Type By Precipitation Codes

    Appendix D – Categorization of precipitation type by precipitation codes From the classification of precipitation particles, the OTT Parsivel calculates the rain rate. The type of precipitation is based on the number of particles within the measurement range, and the precipitation code is determined from the precipita- tion intensity R (in mm/h of an equivalent amount of water).

  • Page 50: Precipitation Code According To The Nws And Metar/Speci W'w', Table 4678

    D.2 Precipitation code according to the NWS and METAR/SPECI w’w’, Table 4678 The definitions of the precipitation codes below are listed according to the following tables: ▶ ▶ METAR/SPECI w’w’ Table 4678 No precipitation Tab. 4678 Drizzle Intensity Rain rate [mm/h] Tab.

  • Page 51: Appendix E - Note On The Declaration Of Conformity

    Appendix E – Note on the declaration of conformity If required, you can download the current version of the declaration of conformity for the OTT Parsivel from our website as a PDF file: "www.ott.com/resources".
  • Page 52 OTT HydroMet GmbH Ludwigstrasse 16 87437 Kempten · Germany Tel. +49 831 5617-0 Fax +49 831 5617-209 Document number euinfo@otthydromet.com 70.210.002.B.E 05-0224 www.otthydromet.com...

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