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OTT CTD Operating Instructions Manual

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Operating instructions
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OTT CTD

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Summary of Contents for OTT CTD

  • Page 1 Operating instructions Groundwater datalogger OTT CTD...
  • Page 2 OTT CTD firmware from V 1.00.0 OTT CTD operating program from V 1.50.0 The OTT CTD firmware version can be found in the "Advanced operation" mode, "OTT CTD" window of the operating program. The version of the operating program can be found via the "Info" function in the "Help" menu.

  • Page 3: Table Of Contents

    8 Determining and displaying instantaneous values (observer function) 9 Reading out data 10 Exporting data 11 Displaying data 12 Protecting the OTT CTD and OTT CTD operating program with a password 13 Date and time settings 14 Deleting the data memory 15 Installing new OTT CTD firmware 16 Maintenance work 16.1 Cleaning the pressure probe...

  • Page 4: Scope Of Supply

    55.440.450.4.1 for top caps starting at 2" without recess and for universal installation on request Cable suspension unit for OTT CTD system lengths of > 100 m CD-ROM „OTT CTD Software“ 56.571.000.9.7 OTT CTD operating program for PC Top cap with integrated fastening hook –...

  • Page 5: Safety Information

    Handle the pressure probe cable carefully: Do not kink the cable or pull it across sharp edges! Do not make any changes or retrofits to the OTT CTD. If changes or retrofits are made, all guarantee claims are voided. Have a faulty OTT CTD inspected and repaired by our repair center. On no account carry out repairs yourself! For further information ➝...

  • Page 6: Introduction

    SMS text messages or using the packet oriented mobile radio transmission service GPRS (general packet radio service). The OTT CTD is installed simply by hanging it in observation wells of 1" in diame- ter and larger. Various adapters/suspension brackets are available as accessories for this purpose.
  • Page 7 Fig. 1: Setting up a groundwater measure- ment station with the OTT CTD. The OTT CTD essentially consists of three com- Top cap ponents: Communication unit, pressure probe cable and pressure probe with datalogger. OTT CTD system length = length of communication unit + cable length + length of pressure probe with datalogger.

  • Page 8: Installing, Checking, And Exchanging Batteries

    The OTT CTD begins measurements within a few seconds of the batteries being inserted (there is no on/off switch). If the OTT CTD is to be shut off ➝ remove the batteries. This will prevent the batteries from draining prematurely and will stop any recording of unusable measurements.
  • Page 9 Close the top cap/observation well cover. Notes The OTT CTD stores the measured values in a non-volatile memory. This pre- vents any data loss when replacing the batteries. This also applies to storage over a long time period with the batteries removed.

  • Page 10: Installing The Ott Ctd

    6 Installing the OTT CTD System length up to 100 meters The installation of the OTT CTD is carried out by suspending it in the observation well. In the process, the necessary accessories and type of installation varies depending on the diameter of the observation well and the design of the top cap: 1"...
  • Page 11 Fig. 4: Installation accessory set – Part 2. Adapter ring 1" Suspension bracket Fig. 5: Adapter plate accessories 3" and 5". 1 = hole for OTT CTD Adapter plate 5" 2 = hole for contact gauge 3 = recess for screws on the top cap...

  • Page 12: Installing In 1" Observation Wells

    6.1 Installing in 1" observation wells Required accessories: Adapter ring for 1" observation wells. Install the OTT CTD as follows Preliminary work: If not already done, install batteries (see Chapter 5). Open the observation well cover. Determine the current depth with a contact gauge and make a note of it.

  • Page 13: Installing In 2", 3", 4", 5" Or 6" Observation Wells, Top Cap With Adapter Plate Recess

    6.2 Installing in 2", 3", 4", 5" or 6" observation wells, top cap with adapter plate recess Required accessories: OTT top cap with appropriate sized recess and the matching adapter plate. Install the OTT CTD as follows Preliminary work: If not already done, install batteries (see Chapter 5).
  • Page 14 Fig. 8: Installing the OTT CTD. O-ring Communication unit Recess Adapter plate Top cap...

  • Page 15: Top Cap Without Adapter Plate Recess

    Caution: There must be sufficient space in the top cap for the infrared interface to not be damaged when the top of the top cap is closed! Install the OTT CTD as follows Preliminary work: If not already done, install batteries (see Chapter 5).
  • Page 16 Fig. 10: Installing the OTT CTD in obser- vation wells beginning at 2" diameter with a top cap without a recess. Example: 2" observation well Top cap upper part Screw Communication Infrared unit interface Suspension O-ring bracket Caution: For top caps with installed suspension brackets, never completely...

  • Page 17: Installing In Observation Wells Beginning At 2" Diameter Without A Top Cap

    6.4 Installing in observation wells beginning at 2" diameter without a top cap For this installation case, an individual solution to fasten the OTT CTD must be found depending on the measurement station. Example: fix a suspension bracket with an M6 hex bolt/nut laterally at the upper end of the observation well.

  • Page 18: Setting Ott Ctd Operating Parameters

    7 Setting OTT CTD operating parameters To set the OTT CTD operating parameters you need the PC software "OTT CTD Operating program" (WBSPL0.exe). This software is contained on the "OTT CTD Software" CD-ROM (accessory). Hardware and software requirements: see CD insert.
  • Page 19 Caution: OTT CTD connected to OTT ITC: Establishing a communication connection can take up to a minute! (This is always the case if the OTT CTD attempts to communicate with the OTT ITC (e.g. SMS message) and the OTT ITC is open at the time.)

  • Page 20: Setting Ott Ctd Operating Parameters

    If necessary: „Set up cyclical data transfer with SMS text message in combi - nation with an OTT ITC intelligent top cap“ or „Set up cyclical data transfer using GPRS in combination with an OTT ITC intelligent top cap“ – see below.
  • Page 21 Sample interval 5 s … 24 h; time delay at which the OTT CTD records measured values and stores them (store only if sample interval = mean interval). The sample interval setting is at a fixed time raster (e.g. sample interval of 10 minutes, time raster …, 00:10, 00:20, 00:30, …).
  • Page 22 Measuring range of the pressure probe – see Fig. 1 System length Cable length including communication unit / pressure probe (see Fig. 1) Date/time Internal date/time of the OTT CTD Detailed information on the "Advanced operation" function can be found in the online help. Factory settings OTT CTD...

  • Page 23: Saving/Loading Ott Ctd Configuration

    Import/Export are available. Likewise, a configuration can be sent via Export as an XML file to the OTT Hydras 3 user software. In the process, the OTT Hydras 3 user software completely applies all of the measurement stations / sensor configu- rations to an OTT Hydras 3 operating range.
  • Page 24 To export a configuration (OTT Hydras 3) This export type is required to transfer an OTT CTD configuration to the OTT Hydras 3 user software. This " * .XML“ file is read in via the Hydras 3 function "File", "Import Station Configuration (XML)".

  • Page 25: Determining And Displaying Instantaneous Values (Observer Function)

    (observer registration). Various options can be set concerning the observer: Selection possibility in the start window of the OTT CTD operating program: – direct and sole call of the observer, or – calling a window to set the operating parameters Effect of an optionally entered observer registration (pressure sensor): –...
  • Page 26 Notes The OTT CTD stores each time the observer function is called in an info channel with the date and time of day. After reading in and accepting into the OTT Hydras 3 user software, this information can be displayed in the evaluation window of a sensor using the "Info Data | Station | Displays"...

  • Page 27: Reading Out Data

    Select the required read period or "All". Click the "Read out" button ➝ the operating program copies the measured values from the OTT CTD to the PC. The data are then available in the program directory of the operating program.

  • Page 28: Exporting Data

    CSV – structured text file in CSV format (Comma-Separated Values) Excel – Microsoft Excel spreadsheet program OTT Hydras 3 – raw data format for the OTT Hydras 3 user software OTT MIS – OTT-specific file format for automatically importing into the measurement database of the OTT Hydras 3 user software Using the "Export Options"...

  • Page 29: Displaying Data

    11 Displaying data After reading out into the OTT CTD operating program, the measurement and information data can be found in the the "RAWDATA" sub-directory of the pro- gram directory (standard setting: "C:\Program files\OTT\OrpheusMini_CTD\RAWDATA"). For an initial check, you can display the data graphically and numerically and print them out if necessary.

  • Page 30: Protecting The Ott Ctd And Ott Ctd Operating Program With A Password

    Select the "Options" function in the "File" menu. Enter a maximum eight-digit password in the "Password" input field. Permitted characters 0 … 9, A … Z. (This password is independent of the OTT CTD password.) Activate check box "Only observer mode".
  • Page 31 In the tree view, select "Communication Interface". Enter a maximum eight-digit password in the "Password" input field. Permitted characters 0 … 9, A … Z. (This password is independent of the OTT CTD operating program password.) Click on the "Program" button.

  • Page 32: Date And Time Settings

    13 Date and time settings The internal clock of the OTT CTD is a high-accuracy, realtime clock. It runs as soon as batteries are installed in the OTT CTD. After the batteries are removed, the clock will continue to run for approximately 10 more minutes. For longer periods of power interruption, the OTT CTD loses the date and time.

  • Page 33: Deleting The Data Memory

    Caution: During the update, avoid breaking the communication link (e.g by accidentally removing the OTT DuoLink from the infrared interface of the OTT CTD.) If the communication link is broken, the firmware will no longer run! In the same way, no other programs should be started or files opened during...

  • Page 34: Maintenance Work

    How to clean the pressure probe Open the top cap/observation well cover. Completely remove the OTT CTD from the observation well. Remove the black protective cap. Clean the pressure sensor carefully using a brush and water.

  • Page 35: Replacing The Desiccant Capsules

    16.2 Replacing the desiccant capsules Recommended interval: Depending on the level of air humidity at the station every 12 to 24 months and when replacing the batteries. How to replace the desiccant capsules Open the top cap/observation well cover. Pull the communication unit approximately 80 cm out of the observation well and hold (a second person would be useful).
  • Page 36 Avoid water entering the calibration solution! Always dry the calibration con- tainer carefully after calibration. Calibration solution can be disposed of in the normal public sewer system! The OTT CTD saves the last three cell constants in a history (see "Advanced operation ...", channel "Conductivity").

  • Page 37: Error Messages

    ➝ check configuration* (for advanced operation, see online help). ➝ check the pressure compensation capillary in the communication unit (blocked?). If necessary, clean. ➝ check pressure sensor for contamination. Clean if necessary. * The standard factory configuration is located on the "OTT CTD software" CD-ROM .
  • Page 38 No measured values in database Configuration incorrect? ➝ check configuration* (for advanced operation, see online help). Battery voltage lower than about 3.6 V? ➝ insert new batteries. * The standard factory configuration is located on the "OTT CTD software" CD-ROM .

  • Page 39: Repair

    Telephone +49 831 5617-433 +49 831 5617-439 repair@ott.com Caution: Only have a defective OTT CTD checked and repaired by the OTT repair center. Under no circumstances carry out any repairs yourself. Any repairs or attempted repairs carried out by the customer will result in the loss of any guarantee rights.

  • Page 40: Technical Data

    21 Technical data Water level Measuring range 0 … 4 m water column (0 ... 0.4 bar) 0 … 10 m water column (0 ... 1 bar) 0 … 20 m water column (0 ... 2 bar) 0 … 40 m water column (0 ... 4 bar) 0 …...
  • Page 41 – Measured value processing: Calculation of mean; delta storage; scal- ing function; extreme value storage; limit control of the sample interval – Virtual sensor/virtual terminal – Together with OTT ITC: alarm management; remote data transfer Mechanical Data Can be installed in observation wells –...

  • Page 42: Appendix A - Declaration Of Conformity For Ott Ctd

    Appendix A – Declaration of conformity for OTT CTD...
  • Page 44 OTT Hydromet GmbH Ludwigstrasse 16 87437 Kempten · Germany Tel. +49 831 5617- 0 +49 831 5617- 2 09 Document number 55.445.001.B.E 02-0411 info@ott.com · www.ott.com...

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