Delta OHM HD2306 User Manual
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Delta OHM HD2306 User Manual

Conductivity meter - thermometer
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REV. 1.3
th
Nov., 10
2005
HD2306.0
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 corrections without prior notice.

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Summary of Contents for Delta OHM HD2306

  • Page 1 REV. 1.3 Nov., 10 2005 HD2306.0 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 Conductivity meter – Thermometer HD2306...
  • Page 3 HD2306.0 1. Input for probes, 8-pole DIN45326 connector. 2. Battery symbol: displays the battery charge level. 3. Function indicators. 4. Secondary display line. 5. DATA/ENTER key: during normal operation displays the maximum (MAX), the minimum (MIN) and the average (AVG) of current measurements. To reset the previous values and restart with a new measurement session, press DATA until the message "FUNC CLR"...

  • Page 4: Table Of Contents

    TABLE OF CONTENTS 1. GENERAL CHARACTERISTICS..........................5 2. DESCRIPTION OF THE FUNCTIONS ........................6 3. THE PROGRAMMING MENU ..........................9 4. CONDUCTIVITY MEASUREMENT........................11 4.1 S ..............................11 TANDARD PROBE 4.2 4- ......................... 12 ELECTRODE OR ELECTRODE PROBES 4.3 C ........................

  • Page 5: General Characteristics

    1. GENERAL CHARACTERISTICS The Conductivity meter – Thermometer Model HD2306.0 is a portable instrument, fitted with a large LCD display for excellent visualization of the measured data, that allows measurement of the following: • conductivity; • liquid resistivity; • total dissolved solids (TDS);...

  • Page 6: Description Of The Functions

    2. DESCRIPTION OF THE FUNCTIONS The keyboard of the Conductivity meter – Thermometer Model HD2306.0 is composed of double- function keys. The function on the key is the "main function", while the one above the key is the "secondary function".
  • Page 7 χ/TDS/ESC key The χ/TDS/ESC key has two functions: • χ/TDS: pressing this key in sequence selects the display of: conductivity, resistivity, or total dissolved solids (TDS). • ESC: once the MENU has been opened with the DATA+°C/°F keys, the χ/TDS key will allow to cancel the parameters set using the arrows.
  • Page 8 UNIT/MENU key The C/°F key is used for the following functions: • °C/°F: pressing this key selects the unit of measurement of temperature in Celsius (°C) or Fahrenheit (°F) degrees. • MENU: in the menu five items can be set (see chapter 3): •...

  • Page 9: The Programming Menu

    3. THE PROGRAMMING MENU To access to the menu press simultaneously the following keys: The items to be set are listed (in this order): 1. K CELL (Cell constant): sets the conductivity probe's cell constant nominal value. The values 0.1, 0.7, 1.0 and 10 cm (with tolerances from –30% to +50% of nominal value) are admitted.
  • Page 10 5. Probe type: the message "PRBE_TYPE" is scrolled in the comment line. The main line in the center of the display shows the type of temperature probe connected to the instrument. Conductivity/temperature combined probes with Pt100 or Pt1000 sensor, or temperature only probes can be connected to the input.

  • Page 11: Conductivity Measurement

    4. CONDUCTIVITY MEASUREMENT The Conductivity meter – Thermometer Model HD2306.0 works with: • combined conductivity/temperature probes; • 4-electrode and 2-electrode only conductivity probes; • temperature probes. The 4 wire Pt100, 2 wire Pt1000 probes may be used for measuring temperature, which is used for the automatic compensation of the conductivity.

  • Page 12: 4- Electrode Or 2- Electrode Probes

    4.2 4- ELECTRODE OR ELECTRODE PROBES The Conductivity meter – Thermometer Model HD2306.0 uses 4-electrode or 2-electrode probes for conductivity measurement. The 4-electrode probes are preferred to measure high conductivity solutions, either over an extended range or in presence of pollutants.

  • Page 13: Automatic Or Manual Conductivity Compensation

    4.5 A UTOMATIC OR MANUAL CONDUCTIVITY COMPENSATION The conductivity measurement refers to a standard temperature, called reference temperature T_REF: that is, the instrument proposes the conductivity you would get if the temperature were T_REF. This temperature could be 20°C or 25°C according to the setting in the T_REF menu item (see chapter 3).

  • Page 14: Manual Calibration Of Conductivity Using Non Memorized Buffer Solutions

    1. Turn the instrument on with the ON/OFF key. 2. Set the probe's cell constant by selecting it from the admitted values: 0.1, 0.7, 1.0 or 10.0 3. Dip the conductivity meter cell in the calibration solution until the electrodes are covered with liquid.
  • Page 15 6. According to the temperature detected, determine the calibration solution conductivity using the table specifying the conductivity according to temperature. 7. Select the conductivity measurement by pressing χ /TDS/ESC. 8. Press the CAL key. The CAL symbol is turned on. The unit of measurement (μS/cm or mS/cm) appears on the comment line.

  • Page 16: Table Of Buffer Solution At 147Μs/Cm, 1413Μs/Cm, 12.88Ms/Cm And 111.8Ms/Cm

    4.6.3 Table of buffer solution at 147μS/cm, 1413μS/cm, 12.88mS/cm and 111.8mS/cm The table reports, below, the buffer solutions automatically detected by the instrument according to temperature. °C µS/cm µS/cm mS/cm mS/cm °C µS/cm µS/cm mS/cm mS/cm 15.0 1147 10.48 92.5 26.0 1440 13.13...

  • Page 17: Connecting The Tp47 Connector

    All probes produced by Delta Ohm are provided with a connector. The HD2306.0 instrument also work with direct 4 wire Pt100, and 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 18 The Pt100 and Pt1000 sensors can also be welded directly on the connector's pins, without using the TP47 board , as reported in the following table: Sensor Direct connection to the connector Jumper Pt100 Pt100 4 wires None Connector's internal view from the TP47 module Pt1000 Jumper between pins 6 and 7...
  • Page 19 Ensure the welds are clean and perfect. 7. Once the welding operation is complete, close the two shells; 8. insert the gasket in the module; 9. screw the fairlead and the ring. Make sure the cable is not twisted while you are screwing the fairlead.

  • Page 20: Warnings

    5. WARNINGS 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 21: Instrument Signals And Faults

    6. INSTRUMENT SIGNALS AND FAULTS The following table lists all error indications and information displayed by the instrument and supplied to the user in different operating situations: Display indications Explanation ALPH Temperature coefficient α BATT TOO LOW Indication of insufficient battery charge appearing on turning on. The instrument issues a long beep and turns off.

  • Page 22: Low Battery Warning And Battery Replacement

    8. LOW BATTERY WARNING AND BATTERY REPLACEMENT The battery symbol on the display constantly shows the battery charge status. To the extent that batteries have discharged, the symbol "empties". When the charge decreases still further it starts blinking. In this case, batteries should be replaced as soon as possible. If you continue to use it, the instrument can no longer ensure correct measurement.

  • Page 23: Notes About Working And Operative Safety

    9. NOTES ABOUT WORKING AND OPERATIVE SAFETY Authorized use The technical specifications as given in chapter TECHNICAL CHARACTERISTICS must be observed. Only the operation and running of the measuring instrument according to the instructions given in this operating manual is authorized. Any other use is considered unauthorized. General safety instructions This measuring system is constructed and tested in compliance with the EN 61010-1 safety regulations for electronic measuring instruments.

  • Page 24: Technical Characteristics

    10. TECHNICAL CHARACTERISTICS 10.1 T – T ECHNICAL INFORMATION ON THE ONDUCTIVITY METER HERMOMETER Instrument Dimensions (Length x Width x Height) 140x88x38mm Weight 160g (complete with batteries) Material Display 2x4½ digits plus symbols Visible area: 52x42mm Operating conditions Operating temperature -5…50°C Warehouse temperature -25…65°C...
  • Page 25 Measurement range (Kcell=0.1) up to 100MΩ⋅cm ±0.5% ±1digit F.S. Accuracy (resistivity) Measurement of total dissolved solids (with coefficient χ /TDS=0.5) Resolution with Kcell=0.1 0.05mg/l in range 0.00…19.99mg/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...

  • Page 26: On Line Instrument Probes And Modules Technical Data

    10.2 ON LINE INSTRUMENT PROBES AND MODULES TECHNICAL DATA 10.2.1 2 and 4 electrode conductivity probes MEASUREMENT ORDER CODE DIMENSIONS RANGE K=0.7 5μS…200mS SP06T 0…90°C Ø 12 Ø 17 4-electrode cell in Pocan/Platinum K=0.1 0.1μS…500μS SPT01G 0…80°C D=5.5 2-electrode cell in Glass/Platinum 10μS…10mS SPT1...

  • Page 27: Order Codes

    11. ORDER CODES HD2306.0K The kit is composed of: instrument HD2306.0, conductivity/temperature combined probe SP06T, 3 1.5V alkaline batteries, standard calibration solution HD8712 (12880μS/cm), operating manual, and case. Other conductivity probes and solutions must be ordered separately. 11.1 C ONDUCTIVITY PROBES Please see the order codes reported in the probes' technical specifications.

  • Page 28: Serial Number

    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. HD2306.0 Instrument type Serial number...

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