Delta OHM HD3409.2 Manual
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Delta OHM HD3409.2 Manual

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REV. 1.2
22/10/2013
HD3409.2
ENGLISH
Our instruments' quality level is the results of the product continuous development. This
can bring about differences between the information written in this manual and the
instrument that you have purchased. We cannot entirely exclude errors in the manual, for
which we apologize.
The data, figures and descriptions contained in this manual cannot be legally asserted. We
reserve the right to make changes and correction without prior notice.

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Summary of Contents for Delta OHM HD3409.2

  • Page 1 REV. 1.2 22/10/2013 HD3409.2 ENGLISH Our instruments' quality level is the results of the product continuous development. This can bring about differences between the information written in this manual and the instrument that you have purchased. We cannot entirely exclude errors in the manual, for which we apologize.
  • Page 2 Dissolved Oxygen – Temperature HD3409.2...
  • Page 3 HD3409.2 1. Connectors 2. Battery symbol: displays the battery charge level. It does not appear when the external power supply is connected. 3. CAL key: it starts the dissolved Oxygen probe calibration. 4. REL key: enables the relative measurement (displays the difference between the current value and the logged value when the key is pressed).

  • Page 4: Introduction

    The HD34… family is composed of four desktop instruments for electrochemical measurements: pH, conductivity, dissolved Oxygen and temperature. The HD3409.2 measures the concentration (in mg/l) of dissolved Oxygen in liquids, the saturation index (in %) and the temperature using SICRAM combined probes of polarographic, with two or three electrodes, and galvanic type with integrated temperature sensor.

  • Page 5: Keyboard And Menu Description

    KEYBOARD AND MENU DESCRIPTION Foreword The instrument keyboard is composed of single-function keys, like the MENU key, and double- function keys such as the LOG/DUMP LOG key. In the double-keys, the function in the upper part is the "main function", while the one in the bottom part is the "secondary function".
  • Page 6 The automatic turning off function is disabled when external power is used. On the other hand, it cannot be disabled when the batteries are discharged. ENTER key In the menu, the ENTER key confirms the current parameter and then goes to the next one. Pressed together with the ON/OFF key, disables the automatic turn off.
  • Page 7 Ο 2 digit 3) SAL mg/l (Setting the salinity): the message "SAL mg/l – UNT=RSET" is scrolled in the comment line. The display central line shows the current salinity value, and the secondary line the corresponding dissolved Oxygen concentration value. Use the arrows to enter this value, and confirm using ENTER.
  • Page 8 played using FUNC refer to saturation: the remaining indicated parameters are those meas- ured at the maximum and minimum saturation index and not their maximum and minimum values. The same is true for the other items: "Conc" refers to dissolved Oxygen concentration, "tp" to temperature, "Press"...
  • Page 9 menu item, the maximum, minimum and average indications have different meanings: please see the description of this MENU key below. Attention: the data captured using the Record function cannot be transferred to the PC. ESC key In the menu, the key clears or cancels the active function (ESC). CAL key It starts the dissolved Oxygen probe calibration (please see the chapter dedicated to calibration on page 13).
  • Page 10 If the Auto-HOLD function is enabled (please see the menu), the data logging is disabled. The HD3409.2 can turn off during logging between one capture and the next: the function is controlled by the Sleep_Mode_LOG parameter. When the logging interval is less than one minute, the logging instrument remains on;...
  • Page 11 °C/°F key The temperature value measured by the sensor present in the dissolved Oxygen probe is used to cal- culate the saturation index and the dissolved Oxygen concentration in the liquid being measured. The key changes the unit of measurement between Centigrade or Fahrenheit. If the probe is not present, the compensation temperature must be entered manually: to manually change the value shown in the display lower line, press °C/°F once.

  • Page 12: Measurement Of The Dissolved Oxygen

    EASUREMENT OF THE ISSOLVED XYGEN The instruments work with combined probes of polarographic, with two or three electrodes, and galvanic type with integrated temperature sensor, or with temperature probes with Pt100 sensor. The dissolved Oxygen probe is fitted with SICRAM module; the temperature probe can be a SI- CRAM type or direct 4 wires with TP47 module.

  • Page 13: Measurement Of The Concentration Of Dissolved Oxygen

    Measurement of the concentration of dissolved Oxygen The probe must be calibrated periodically using the DO9709/20 (for polarographic probe) or DO9709/21 (for galvanic probe) calibrator. The instrument checks the dissolved Oxygen probe efficiency; the "CHNG MEMBRANE AND ELECTROLYTE" message indicates that the probe is exhausted. The same message is displayed during calibration: either when calibration is not possible or the reading is unstable.
  • Page 14 OLAROGRAPHIC PROBE Unscrew the probe's head and the membrane permeable to oxygen. If necessary, replace the membrane. Fill the probe's head with the DO 9701 electrolyte solution until the level indicated in the figure (filling level). Eliminate any possible air bubble in the electrolyte solution.

  • Page 15: Check The Probe's Status

    Check the probe's status The glass body covering the cathode of the polarographic probe and the membrane on the probe's head should not be damaged. If there are cracks in the glass body, the probe must be replaced. If the Oxygen-permeable mem- brane is damaged, dirty or obstructed it must be replaced.

  • Page 16: Pt100 Temperature Probes

    (do not use water or solvents). This method also improves the response time. Instructions to connect the TP47 module for 4-wire Pt100 probes All Delta Ohm probes are provided with a TP47 module. The HD3409.2 also work with direct 4-wire Pt100 probes manufactured by other producers: for the instrument connection is prescribed the TP47 connector to which the probe's wires should be welded.

  • Page 17: Direct Connection Of The 4-Sensor To A Din45326 Connector

    Open the two module shells: the printed circuit to which the probe must be connected is housed in- side. On the left there are the 1…4 points on which the sensor wires must be welded. The JP1…JP4 jumpers are in the center of the card. These must be left open: Not Used Ni1000 Pt1000...

  • Page 18: Warnings And Operating Instructions

    WARNINGS AND OPERATING INSTRUCTIONS 1. The dissolved Oxygen probes can be influenced by the presence of gases and vapours, such as chlorine, sulphur dioxide, hydrogen sulphide, amines, ammonia, carbon dioxide, bromine and iodine. Such substances can get through the membrane and interfere with the measurement. Other substances such as solvents, oils, sulphurs, carbonates and algae can obstruct or degrade the membrane or corrode the electrodes.

  • Page 19: Instrument Signals And Faults

    INSTRUMENT SIGNALS AND FAULTS The following table lists all error indications and information displayed by the instrument and sup- plied to the user in different operating situations. Display indications Explanation It appears when the dissolved oxygen or temperature measurements ex- ceed the expected ranges.
  • Page 20 The following table reports the indications provided by the instrument as they appear on the display, together with their description. Display indication Explanation automatic function holding the displayed measurement AUTO HOLD BATT TOO LOW - CHNG NOW battery discharged - replace it immediately BAUDRATE baud rate value replace the electrolyte solution and/or membrane...

  • Page 21: Low Battery Warning And Battery Replacement

    The instrument issues a long beep and turns off. In this case, replace the batteries or use the external power supply, in order to turn the instrument back on. In order to avoid data loss, the logging session is ended, if the HD3409.2 is logging and battery voltage falls below the minimum operating level.

  • Page 22: Instrument Storage

    ALFUNCTIONING UPON TURNING ON AFTER BATTERY REPLACEMENT After replacing the batteries, the instrument may not restart correctly; in this case, repeat the opera- tion. After disconnecting the batteries, wait a few minutes in order to allow circuit condensers to discharge completely; then reinsert the batteries. ARNING ABOUT BATTERY USE •...

  • Page 23: Serial Interface And Usb

    SERIAL INTERFACE AND USB The HD3409.2 is fitted with an electrically isolated RS-232C and USB2.0 serial interface. The USB connection requires the previous installation of a driver in the instrument software. Install the driver before connecting the USB cable to the PC (please see the details on page 27).
  • Page 24 Command Response Description PRINTOUT OF LOG Print data logged in flash & Erase data in flash memory & Sets the unit of measurement for the temperature. n=0 > °C LUAn n=1 > °F & Sets the unit of measurement for the dissolved oxygen n=0 >...

  • Page 25: Storing And Transferring To A Personal Computer

    STORING AND TRANSFERRING TO A PERSONAL COMPUTER The HD3409.2 instrument can be connected to a personal computer via an RS232C serial port, and exchange data and information through the DeltaLog9 software (Version 2.0 or later versions) running in a Windows operating environment. The measured values can be sent directly to the PC, through the SERIAL function in real time, or stored in the internal memory using the Logging function (LOG key).

  • Page 26: The Print Function

    PRINT FUNCTION The PRINT function sends the measurements taken in real time by the instrument inputs directly to a PC or printer S'Print-BT. Printing always includes two parameters. Each data pair is composed of: temperature in °C or °F, dissolved Oxygen concentration (in mg/l) or saturation index (in %) or barometric pressure (in mbar).

  • Page 27: Connection To A Pc

    SERIAL PORT 1. The measurement instrument must be switched off. 2. Using the Delta Ohm HD2110CSNM cable, connect the measurement instrument to the first free serial port (COM) of the PC. 3. Turn on the instrument and set the baud rate to 38400 (MENU >> ENTER until the Baud Rate parameter >>...
  • Page 28 Connect the instrument to the PC USB port. When Windows detects the new device, the "New software installation wizard" is started. If you are asked for the authorization to search an updated driver, answer NO and continue. In the installation window, select “Install from a list or specific location”. In the next window select “Search for the best driver in these locations”...

  • Page 29: Notes On Working And Operating Safety

    NOTES ON WORKING AND OPERATING SAFETY Authorized use Comply with the technical specifications outlined in the chapter “TECHNICAL CHARACTERIS- TICS”. Its use is authorized only in conformity with the instructions written in this manual. Any different use is considered improper. General instructions on security This instrument has been manufactured and tested according to safety regulation EN 61010-1 con- cerning electronic measurement instruments and was delivered ex factory in perfect security condi-...

  • Page 30: Instrument Technical Characteristics

    INSTRUMENT TECHNICAL CHARACTERISTICS Measured quantities mg/l O , %O , mbar, °C, °F Instrument Dimensions (Length x Width x Height) 220x120x55mm Weight 460g (complete with batteries) Materials ABS, rubber Display 2x4½ digits plus symbols Visible area: 52x42mm Operating conditions Operating temperature -5…50°C Warehouse temperature -25…65°C...
  • Page 31 Selectable print interval Immediate or 1s, 5s, 10s, 15s, 30s, 1min, 2min, 5min, 10min, 15min, 20min, 30min and 1hour USB interface Type 1.1 - 2.0 electrically isolated Connections Temperature probe input with SICRAM module or TP47 module 8-pole male DIN45326 connector Input for Oxygen probes 8-pole male DIN45326 connector Serial interface and USB...

  • Page 32: Technical Data Of Probes

    TECHNICAL DATA OF PROBES ISSOLVED XYGEN PROBES Model DO9709 SS DO9709 SS.5 DO9709 SS.1 DO9709 SS.5.1 Polarographic probe, Galvanic probe, Type Silver anode, Platinum cathode Zinc anode, Silver cathode Range O 0.00…60.00mg/l 0.00…20.00mg/l Operating temperature 0…45°C 0…50°C Accuracy ±1% f.s. ±2% f.s.

  • Page 33: Temperature Probes Pt100 Sensor Using Sicram Module

    Pt100 EMPERATURE PROBES SENSOR USING SICRAM MODULE Model Type Application range Accuracy ±0.25°C (-196°C…+300°C) Immersion -196°C…+500°C TP472I ±0.5°C (+300°C…+500°C) TP472I.0 Immersion -50°C…+300°C ±0.25°C 1/3 DIN – Thin Film ±0.25°C (-50°C…+300°C) TP473P.I Penetration -50°C…+400°C ±0.5°C (+300°C…+400°C) TP473P.0 Penetration -50°C…+300°C ±0.25°C 1/3 DIN - Thin Film ±0.3°C (-50°C…+300°C) TP474C.I Contact...

  • Page 34: Order Codes

    ORDER CODES HD3409.2 Kit including: instrument HD3409.2 datalogger, performs measurements of dis- solved Oxygen concentration - saturation index - temperature, HD9709/20 (for polarographic probe) or DO9709/21 (for galvanic probe) calibrator, 3 x 1.5V alka- line batteries, operating manual, case and DeltaLog9 software.
  • Page 35 CCESSORIES DO9709 SSK Accessories kit for the DO9709 SS and DO9709 SS.5 probes consisting of two membranes, zero solution, electrolyte solution. DO9709/20 Calibrator for DO9709 SS and DO9709 SS.5 polarographic probes. DO9701 Electrolyte solution for DO9709 SS and DO9709 SS.5 polarographic probes. DO9709/21K Accessories kit for the DO9709 SS.1 and DO9709 SS.5.1 probes consisting of two membranes, zero solution, electrolyte solution.
  • Page 36 TP47 Only connector for direct 4-wire Pt100 probes connection. DELTA OHM metrology laboratories LAT N° 124 are accredited by ACCREDIA for Tem- perature, Humidity, Pressure, Photometry / Radiometry, Acoustics and Air Velocity. They can supply calibration certificates for the accredited quantities.
  • Page 37 OTES...

  • Page 38: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION..............................4 KEYBOARD AND MENU DESCRIPTION ......................5 MEASUREMENT OF THE DISSOLVED OXYGEN ....................12 How to measure ..............................12 Measurement of the concentration of dissolved Oxygen..................13 Electrolyte solution and/or membrane replacement ....................13 Check the probe's status ............................15 Control the zero of the probe ..........................15 Dissolved Oxygen probe storage ........................15 Polarographic probe and galvanic probe: differences..................15 Pt100...
  • Page 39 Delta OHM presso l’Istituto Primario Nazionale di Ricerca Metrologica. The traceability of measures assigned to international and national reference samples is guaranteed by a reference chain which source is the calibration of Delta OHM accredited laboratories reference samples at the Primary National Metrological Research Institute.
  • Page 40 All DELTA OHM instruments are subject to accurate testing, and are guaranteed for 24 months from the date of purchase. DELTA OHM will repair or replace free of charge the parts that, within the warranty pe- riod, shall be deemed non efficient according to its own judgement. Complete replacement is excluded and no damage claims are accepted.

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