CONTENTS INTRODUCTION ................................ 3 KEYBOARD AND MENU DESCRIPTION ......................8 CONDUCTIVITY MEASUREMENT ........................16 ’ ..............18 OMPENSAZIONE AUTOMATICA O MANUALE DELLA CONDUCIBILITA ALIBRATION OF CONDUCTIVITY ..........................18 UTOMATIC CALIBRATION OF CONDUCTIVITY USING MEMORIZED STANDARD SOLUTIONS ........19 ANUAL CALIBRATION OF CONDUCTIVITY USING NON MEMORIZED STANDARD SOLUTIONS ........
INTRODUCTION The HD2106.1 and HD2106.2 are portable instruments with a large LCD display. They measure conductivity, liquid resistivity, total dissolved solids (TDS) and salinity using combined 4-ring and 2-ring conductivity/temperature probes. Temperature only is measured by Pt100 or Pt1000 immersion, penetration or contact probes. The probe calibration can be performed automatically in one or more of the 147 µS/cm, 141 3µS/cm, 12880 µS/cm or 111,800 µS/cm conductivity calibration solu- tions.
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HD2106.1 1. 8-pole DIN45326 connector, input for combined 4-ring or 2-ring conductivi- ty/temperature probes, for direct 4-wire Pt100 temperature probes and 2 or 4-wire Pt1000 probes complete with TP47 module. 2. External auxiliary power supply connector input (positive at centre). 3.
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HD2106.2 1. 8-pole DIN45326 connector, input for combined 4-ring or 2-ring conductivi- ty/temperature probes, for direct 4-wire Pt100 temperature probes and 2 or 4-wire Pt1000 probes complete with TP47 module. 2. External auxiliary power supply connector input (positive at centre). 3.
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 ON-OFF/Auto-OFF 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".
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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 FUNC/ENTER key During normal measurement this enables the display and logging of the maximum (MAX), minimum (MIN) and average (AVG) value of the conductivity, liquid resistivity, total dissolved solids, salinity and temperature measurements, updating them with the acquisition of new samples.
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χ.Ω.TDS (conductivity - resistivity - total dissolved solids - salinity) / ESC Changes the main variable measurement between conductivity, resistivity, total dis- solved solids (TDS) and salinity. The selected parameter is used for display, printing and logging (model HD2106.2). The instrument has an Auto-Hold function, which can be set in the MENU, that "freez- es"...
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formed each time the key is pressed. Recording (LOG) is performed with one-second intervals even if the interval is set to 0. With an interval from 1 to 3600s, continuous data transfer is started when the SERIAL key is pressed. To end the recording (LOG) and continuous data transfer operations (SERIAL with an interval greater than 0), press the same key again.
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χ χ 2 digit 6) K CELL (Cell constant): sets the conductivity probe's cell constant nominal value. The values 0.01, 0.1, 0.7, 1.0 and 10 cm (with tolerances from –30% to +50% of nominal value) are admitted. The cell constant must be inserted before starting the probe calibration.
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that measured at the maximum and minimum conductivity and is not the max- imum and minimum temperature. If the RCD MODE parameter is set to "tp" (=temperature), the maximum and minimum val-ues displayed using FUNC/ENTER refer to temperature: the indi- cated conductivity is that measured at the maximum and minimum tempera- ture and is not the maximum and minimum conductivity.
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18) BAUD_RATE: indicates the frequency used for the serial communication with the PC. Values from 1200 to 38400 baud. Use the arrows to modify this param- eter and confirm using ENTER. The communication between instrument and PC (or serial port printer) only works if the instrument and PC baud rates are the same.
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Press SERIAL to end the continuous printing. Before starting the printing with SERIAL, set the baud rate. To do so, select the Baud Rate menu item and select the maximum value equal to 38400 baud by using the ar- rows. Confirm by pressing ENTER. The DeltaLog9 software for PC will automatically set the baud rate value during con- nection.
CONDUCTIVITY MEASUREMENT The instruments work with conductivity/temperature combined probes, 4-ring and 2- ring, only conductivity probes, or temperature probes. The 4-wire Pt100, 2 or 4-wire Pt1000 probes may be used for measuring temperature, which is used for the automatic compensation of the conductivity. The instrument obtains the following from the measurement of conductivity: the liquid resistivity measurement (Ω, kΩ, MΩ), •...
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4- ring or 2- ring probes The HD2106.1 and HD2106.2 conductivity meters use 4-ring or 2-ring probes for con- ductivity measurement. The 4-ring probes are preferred to measure high conductivity solutions, either over an extended range or in presence of pollutants. The 2-ring probes operate in a shorter measurement range but with accuracy comparable with the 4-ring probes.
’ OMPENSAZIONE AUTOMATICA O MANUALE DELLA CONDUCIBILITA 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.
ANUAL CALIBRATION OF CONDUCTIVITY USING NON MEMORIZED STANDARD SOLUTIONS Manual calibration is possible at any calibration solution and temperature if it is within the instrument measurement limits and provided that you know the solution's conduc- tivity at the temperature at which the calibration is performed. Proceed as follows: 1.
NOTES: • Without having pressed ENTER at all, the calibration is interrupted by pressing χ .Ω.TDS/ESC; the previous values will continue to be used. • Upon confirming the calibration by using ENTER, the instrument checks that the correction to the conductivity does not exceed the 70% or 150% limits of the theo- retical value.
Pt100 Pt1000 T IRECT INPUT INTO EMPERATURE PROBES The instrument accepts the input of platinum temperature probes with resistances of 100Ω and 1000Ω. The Pt100 are connected to 4 wires, the Pt1000 to 2 or 4 wires, with the excitation current chosen minimizing the sensor self-heating effects.
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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.
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The wires coming from the conductivity probe are welded directly on the DIN45326 connector as reported in the following table: Direct connection to the connector Sensor Jumper DIN45326 Jumper between pins 2-electrode 1 and 4 conductivity probe Jumper between pins 2 and 5 Internal view of the connector 4-electrode...
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The wires coming from the conductivity/Pt100 temperature combined probe can be welded directly on the connector as reported in the following table. Direct connection to the connector Sensor Jumper DIN45326 Pt100 2-ring conductivity Jumper between probe pins 1 and 4 Pt100 Jumper between temperature...
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.
OTES ON CONDUCTIVITY PROBES The service life of a cell can be unlimited, provided that the necessary maintenance is performed and that it does not break. Some of the most frequent problems and their possible solutions are reported below. Measurement of conductivity different from the expected value. Check that the cell used is suitable for the measurement range.
INSTRUMENT SIGNALS AND FAULTS The following table lists all error indications and information displayed by the instru- ment and supplied to the user in different operating situations: Display Explanation indications This appears if the conductivity/temperature probe is measur- ing a value exceeding the set measuring range. This appears when, during calibration, the read value exceeds the limits of -30% or +50% of the standard solution value compensated for temperature or the solution temperature is...
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The following table reports the indications provided by the instrument as they appear on the display, together with their description. Display indication Explanation ALPH temperature coefficient α automatic function holding the displayed meas- AUTO HOLD urement BATT TOO LOW - CHNG NOW battery discharged - replace it immediately BAUDRATE baud rate value...
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.
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ALFUNCTIONING UPON TURNING ON AFTER BATTERY REPLACEMENT After replacing the batteries, the instrument may not restart correctly; in this case, repeat the operation. 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 ...
INSTRUMENT STORAGE Instrument storage conditions: Temperature: -25...+65 °C. Humidity: less than 90% RH without condensation. Do not store the instrument in places where: Humidity is high. The instrument may be exposed to direct sunlight. The instrument may be exposed to a source of high temperature. The instrument may be exposed to strong vibrations.
SERIAL INTERFACE AND USB The HD2106.1 and HD2106.2 instruments are fitted with an electrically isolated RS- 232C serial in-terface; the HD2106.2 also has an USB 2.0 interface. The following serial cables can be used: • HD2110CSNM: serial connection cable with 8-pole MiniDin connector on one end and 9-pole Sub D connector on the other end;...
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Command Response Description Ping (locks the instrument keyboard for 70 seconds) & & Unlocks the instrument keyboard Captured measurements (24 characters) AT = automatic tem- AT 21.3 1000 perature compensation Model HD2106 -2 Instrument model M=conductivity meter Model description SN=12345678 Instrument serial number Firm.Ver.=01-01 Firmware version...
STORING AND TRANSFERRING DATA TO A PC The HD2106.1 and HD2106.2 instruments can be connected to a personal computer via an RS232C serial port or USB 2.0 port, and exchange data and information through the DeltaLog9 software running in a Windows operating environment. Both models can send in real time input measured values directly to a PC, through the PRINT function;...
• It is possible to activate both the logging (LOG) and direct transfer (PRINT) functions at the same time. RINT FUNCTION The PRINT function sends the measurements taken in real time by the instrument in- puts directly to a PC or a printer. Print data units of measurements are the same as those used on the display.
CONNECTION TO A PC HD2106.1 Connection to the PC with the cable: • HD2110CSNM: 8-pole MiniDin connector on one end and 9-pole Sub D con- nector on the other end; • C.206: 8-pole MiniDin connector on one end and USB type A connector on the other end.
NOTE SUL FUNZIONAMENTO E LA SICUREZZA OPERATIVA 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 con- sidered unauthorized.
INSTRUMENT TECHNICAL CHARACTERISTICS Instrument Dimensions (Length x Width x Height) 185 x 90 x 40 mm Weight 470 g (complete with batteries) Materials ABS, rubber Display 2x4½ digits plus symbols Visible area: 52 x 42 mm Operating conditions Operating temperature -5…50 °C Warehouse temperature -25…65 °C...
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USB interface - model HD2106.2 Type 1.1 - 2.0 electrically isolated Connections Conductivity input 8-pole male DIN45326 connector Input module for the temperature probes 8-pole male DIN45326 connector RS232 serial interface 8-pole MiniDin connector USB interface (only HD2106.2) Mini-USB type B connector Mains adapter (cod.
ECHNICAL DATA OF PROBES WITH MODULE IN LINE WITH THE INSTRUMENT Pt100 Pt1000 TP47 PROBES COMPLETE WITH MODULE Model Type Application range Accuracy TP47.100.O Pt100 4 wires -50…+250°C Class A TP47.1000.O Pt1000 4 wires -50…+250°C Class A TP87.100.O Pt100 4 wires -50…+200°C Class A TP87.1000.O...
ORDERING CODES HD2106.1 The kit is composed of the instrument HD2106.1, 4 1.5V alkaline bat- teries, operating manual, case and DeltaLog9 software downloadable from Delta OHM website. The probes and the cables must be or- dered separately. HD2106.2 The kit is composed of the HD2106.2 data logger, 4 1.5V alkaline bat- teries, operating manual, case, CP23 USB cable and DeltaLog9 soft- ware downloadable from Delta OHM website.
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TP47 EMPERATURE PROBES COMPLETE WITH MODULE TP47.100.O Immersion probe, sensor Pt100 direct 4 wires. Probe's stem Ø 3 mm, length 230 mm. 4-wire connection cable with connector, length 2 me- tres. TP47.1000.O Immersion probe, sensor Pt1000. Probe's stem Ø 3 mm, length 230 mm.
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GHM GROUP – Delta OHM | Delta Ohm S.r.l. a socio unico Via Marconi 5 | 35030 Caselle di Selvazzano | Padova | ITALY Phone +39 049 8977150 | Fax +39 049 635596 www.deltaohm.com | sales@deltaohm.com WARRANTY Delta OHM is required to respond to the "factory warranty" only in those cases provided by Legislative Decree 6 September 2005 - n.
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