Delta OHM HD3406.2 User Manual
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Delta OHM HD3406.2 User Manual

Delta OHM HD3406.2 User Manual

Conductivity meter, thermometer
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REV. 1.0
31 Jan. 2006
HD3406.2
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 instru-
ment 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 corrections without prior notice.

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  • Page 1 REV. 1.0 31 Jan. 2006 HD3406.2 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 instru- ment that you have purchased. We cannot entirely exclude errors in the manual, for which we apologize.
  • Page 2 Conductivity meter – Thermometer HD3406.2...
  • Page 3 HD3406.2 1. Connectors. 2. Battery symbol: indicates the battery level. The symbol does not appear when the external power supply is connected. 3. CAL key: it starts the conductivity probe calibration. 4. REL key: enables the relative measurement (displays the difference between the current va- lue and the logged value when the key is pressed);...

  • Page 4: Introduction

    The instrument series HD34… is made up of 4 bench top instruments for electrochemical measures: pH, conductivity, dissolved oxygen, and temperature. The HD3406.2 measures conductivity, liquid resistivity, total dissolved solids (TDS), and salin- ity using combined 4-ring and 2-ring conductivity/temperature probes. Temperature is measured by Pt100 or Pt1000 immersion, penetration or contact probes.

  • 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 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. MENU Key The first menu item is accessed by initially pressing on the MENU key; press ENTER to go to the following items.
  • Page 7 the value of the first sample to be set: each time the PRINT key is pressed, the identification ID in the printing is increased by 1 allowing progressive measurement of all measured sam- ples. If the Auto-Hold function, described below in this chapter, is enabled, the print time in- terval is forced to zero.
  • Page 8 tion year is not displayed. The cell constant change, using the K CELL parameter, resets the date. 8) ALPH_T (Temperature coefficient α ): the temperature coefficient α is the percentage measurement of the conductivity variation according to temperature and is expressed in %/°C (or %/°F).
  • Page 9 16) HOUR: to set the current hour. Use the arrows to modify this parameter and confirm using ENTER. 17) MIN: to set the current minutes. In order to correctly synchronize the minute, it is possible to reset the seconds by pressing the °C/°F key. Use the arrows to set the current minute plus one, and as soon as that minute is reached press °C/°F: this synchronizes the time to the second.
  • Page 10 If the Auto-HOLD function is enabled (please see the menu), the data logging is disabled. The HD3406.2 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 SERIAL/EraseLOG key In measurement mode, this function starts and stops the data transfer to the RS232C serial output According to the settings entered in the Print and log interval menu item, a single sample can be printed if Print and log interval = 0 or a continuous indefinite printing of the measured data can be set up if Print and log interval = 1…3600.
  • Page 12 Down Arrow When used in the menu, it decreases the current variable value. During measurement, if the tem- perature probe is not present, it decreases the temperature value for conductivity compensation.

  • Page 13: Conductivity Measurement

    This probe's temperature measuring range is -50°C a +90°C. 4- ring or 2- ring probes The conductivity HD3406.2 uses 4-electrode or 2-electrode probes for conductivity measurement. The 4- ring probes are preferred to measure high conductivity solutions, either over an extended range or in presence of pollutants.

  • Page 14: Automatic Or Manual Conductivity Compensation

    Cells with temperature sensor All probes are fitted with a built-in Pt100 or Pt1000 temperature sensor: the simultaneous measure- ment of conductivity and temperature allows automatic correction of the effect of the latter on the solution conductivity. Choosing the cell constant The constant is a piece of information which characterizes the cell.

  • Page 15: Calibration Of Conductivity

    To manually change the compensation temperature press the °C/°F key once: the indicated tempera- ture value starts blinking. Select the desired temperature value by using the arrows and confirm with ENTER. The display stops blinking, and the temperature displayed is used for compensation. To change the unit of measurement between °C and °F, press the °C/°F key twice.

  • Page 16: Manual Calibration Of Conductivity Using Non Memorized Standard Solutions

    probe is not present, at the manually-set temperature. In the lower line, the closest temperature compensated standard buffer value. 6. Press the CAL key. The unit of measurement (μS/cm or mS/cm) appears on the comment line. The central line shows the solution conductivity value at the measured temperature, or if the probe is not present, at the manually-set temperature.

  • Page 17: Table Of Standard Solutions At 147Μs/Cm, 1413Μs/Cm, 12.88Ms/Cm And 111.8Ms/Cm

    10. The cell constant nominal value (KCELL) and the temperature coefficient α set to 0 are dis- played. Pressed repeatedly the ENTER key allows the calibration on the point to be repeated, for example, in order to obtain a more stable value. 11.

  • Page 18: Direct Input Into Pt100 And Pt1000 Temperature Probe With Tp47 Module

    Instructions to connect the TP47 module for conductivity/temperature combined probes, 4 wire Pt100 probes and 2 wire Pt1000 probes All Delta Ohm probes are provided with a module TP47. The HD3406.2 also work with conductiv- ity/temperature combined probes, direct 4 wire Pt100 probes, 2 wire Pt1000 probes manufactured by other producers: for the instrument connection is prescribed the TP47 connector to which the probe's wires should be welded.
  • Page 19 Do the following to open the module and connect a probe: unscrew the fairlead and extract the gasket, remove the label using a cutter, unscrew the ring on the opposite side as illustrated in the figure: Open the two module shells: the printed circuit to which the temperature probe must be connected is housed inside.
  • Page 20 The wires coming from the conductivity probe are welded directly on the DIN45326 connector as reported in the following table: Sensor Direct connection to the connector Jumper Jumper between 2-electrode pins 1 and 4 conductivity probe Jumper between pins 2 and 5 Internal view of the connector 4-electrode conductivity...
  • Page 21 The wires coming from the conductivity/Pt100 temperature combined probe are welded directly on the connector as reported in the following table: Sensor Direct connection to the connector Jumper Pt100 2-electrode Jumper between conductivity pins 1 and 4 probe Pt100 tempera- Jumper between ture sensor pins 2 and 5...

  • Page 22: Warnings And Operating Instructions

    WARNINGS AND OPERATING INSTRUCTIONS 1. Do not expose the probes to gases or liquids that could corrode the material of the sensor or the probe itself. Clean the probe carefully after each measurement. 2. Do not bend the probe connectors or force them upward or downward. 3.
  • Page 23 Slow response or instability. Check that the cell is not dirty, that there are no traces of oil or air bubbles inside it. If you work with a black Platinum cell, new platinum-coating of the electrode could be necessary. Cell constant value not accepted. Check that the standard solutions are in good condition, that the probe's constant cell value coincides with that selected in the instrument and that the solution tem- perature is within the range 15…35°C.

  • Page 24: 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 This appears if the conductivity/temperature probe is measuring a value exceeding the set measuring range.
  • Page 25 The following table reports the indications provided by the instrument as they appear on the display, together with their description. Display indication Explanation temperature coefficient α ALPH AUTO HOLD automatic function holding the displayed measurement BATT TOO LOW - CHNG NOW battery discharged - replace it immediately BAUDRATE baud rate value...

  • Page 26: 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 HD3406.2 is logging and battery voltage falls below the minimum operating level.

  • Page 27: 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 28: Serial Interface And Usb

    SERIAL INTERFACE AND USB The HD3406.2 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. 32).
  • Page 29 Command Response Description & Sets the unit of measurement for the conductivity n=0 > μS/cm n=1 > Ω LUBn n=2 > TDS n=3 > NaCl & # Reading of LOG/PRINT interval set & 600 Battery level (Resolut. 0.01V) U= °C Temperature measurement unit U= uS Conductivity measurement unit...

  • Page 30: Storing And Transferring Data To A Personal Computer

    STORING AND TRANSFERRING DATA TO A PERSONAL COMPUTER The HD3406.2 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 store them in the internal memory using Logging function (LOG key) in their internal memory.

  • Page 31: The Print Function

    PRINT FUNCTION The PRINT function sends the measurements taken in real time by the instrument inputs directly to a PC. Print data units of measurements are the same as those used on the display. Printing always includes two parameters. Each data pair is composed of: temperature in °C or °F, conductivity or resistivity or TDS or NaCl.

  • Page 32: 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 33 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 34: Functioning Notes And Operating Security

    UNCTIONING OTES AND PERATING ECURITY 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 dif- ferent 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 35: Instrument Technical Characteristics

    INSTRUMENT TECHNICAL CHARACTERISTICS χ , Ω, TDS, NaCl, °C, °F Measured quantities 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 36 USB interface Type 1.1 - 2.0 electrically isolated Connections Input for temperature probes complete with TP47 module pole male DIN45326 connector Conductivity input 8-pole male DIN45326 connector Serial interface and USB 8-pole MiniDin connector Mains adapter 2-pole connector (positive at centre) 12Vdc/1A Measurement of conductivity by instrument Measurement range (Kcell=0.01) / Resolution...
  • Page 37 Measurement range (Kcell=0.1) / Resolution 0.00…19.99mg/l / 0.05mg/l Measurement range (Kcell=1) / Resolution 0.0…199.9 mg/l / 0.5 mg/l 200…1999 mg/l / 1 mg/l 2.00…19.99 g/l / 0.01 g/l 20.0…99.9 g/l / 0.1 g/l Measurement range (Kcell=10) / Resolution 100…999 g/l / 1 g/l ±0.5% ±1digit Accuracy (total dissolved solids) Measurement of salinity...

  • Page 38: Technical Data Of Probes

    TECHNICAL DATA OF PROBES TP47 ELECTRODE CONDUCTIVITY PROBES WITH MODULE MEASURING RANGE ORDER CODE DIMENSIONS AND USE K=0.7 5μS/cm …200mS/cm 0…90°C 4-electrode cell SP06T in Platinum Ø 12 Ø 17 Probe material Pocan General use Not heavy duty K=0.01 0.04μS/cm …20μS/cm 0…120°C SPT401.001 2-electrode cell in AISI 316...

  • Page 39: Pt100 4 -Wire Probes And Pt1000 2-Wire Probes Complete With Tp47 Module

    Pt100 4 – Pt1000 2- TP47 WIRE PROBES AND WIRE PROBES COMPLETE WITH MODULE Model Type Application range Accuracy TP47.100 Pt100 4 wires -50…+200°C Class A TP47.1000 Pt1000 2 wires -50…+200°C Class A TP87.100 Pt100 4 wires -50…+200°C Class A TP87.1000 Pt1000 2 wires -50…+200°C...

  • Page 40: Order Codes

    ORDER CODES HD3406.2K The kit is composed of: instrument HD3406.2 datalogger, for the measurement of conductivity - resistivity - TDS - salinity - temperature, 3 1.5V alkaline batteries, operating manual, software DeltaLog9 version 2.0. The conductivity probes, temperature probes, standard reference solutions,...
  • Page 41 TP47 TEMPERATURE PROBES COMPLETE WITH TP47.100 Direct 4 wire Pt100 sensor immersion probe with connector. Probe's stem Ø 3mm, length 230mm. 4 wire connection cable with connector, length 2 metres. TP47.1000 Pt1000 sensor immersion probe. Probe's stem Ø 3mm, length 230mm. 2 wire con- nection cable with connector, length 2 metres.

  • Page 42: Table Of Contents

    CONTENTS INTRODUCTION ................................4 KEYBOARD AND MENU DESCRIPTION........................5 Conductivity measurement ............................13 Automatic or manual conductivity compensation....................14 Calibration of conductivity............................15 Automatic calibration of conductivity using memorized standard solutions ............15 Manual calibration of conductivity using non memorized standard solutions ............16 Table of standard solutions at 147μS/cm, 1413μS/cm, 12.88mS/cm and 111.8mS/cm..........
  • Page 44 WICHTIG: Die Garantie ist nur gültig, wenn dieser Abschnitt bis ins Einzelne ausgefüllt ist. Este certificado debe acompañar al aparato enviado al centro de asistencia. IMPORTANTE: La garantía es válida solo si el presente cupón ha sido completado en su totalidad. HD3406.2 Instrument type Serial number...

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