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sage E04 alternating with the Oxygen measurement: the instrument is not able to calculate the
partial pressure of the saturated dissolved Oxygen.

3. Selection of the measuring unit.

* Press the mg/l % key repeatedly to show, at the top of the display, the measurement of the

concentration of dissolved Oxygen expressed in mg/l or the saturation index expressed in %.

* Press the °C/°F key to select the unit in which you want to display the temperature measure-

ment.

4. Displaying the atmospheric pressure.

* To display the atmospheric pressure measured by the pressure sensor in the instrument, press

the PROG key until you come to program P12. With P12 on the display, press the ENTER key.
The top part of the display shows the message PrSm the bottom the pressure value, expressed
in mbar. The °C and °F indications are both active, indicating that the environment pressure is
not being calibrated. To return to normal operating mode, press ENTER.

5. Switching off the instrument.

* The instrument is switched off by pressing the ON/OFF key.
* Because of the AUTO POWER OFF function the instrument may switch itself off during measu-

rements. In this case press the ON/OFF key to switch it on again.

* The instrument usually switches off automatically after 8 minutes of inactivity, with the following

few exceptions:

a) Instrument in RCD status.
b) Instrument in Auto Power Off Disabled status.
In these two cases the instrument switches off only when the ON/OFF key is pressed.
c) Instrument during unloading of stored data.
d) Instrument during Serial Output of immediate data.
e) Instrument in storage function.

In the last three cases the instrument switches off automatically 8 minutes after the low bat-
tery warning and interrupts storage and unloading of data.
When it switches on again there are two possibilities:

1. If the battery is definitely low, even when the instrument switches on again LOU appears on

the display together with the battery symbol.

The PROG key (P1+ENTER) enables the activation of the unloading of stored data even when
the battery is low.

2. If the battery has had time to recover and when the instrument switches on its charge seems,

even just a little, higher than the minimum value, LOU appears on the display without the bat-
tery symbol for a short period of time (about 4 seconds), after which the instrument returns to
normal operation; this is to remind the user that the instrument was previously in storage func-
tion and that this procedure was interrupted by the low battery warning.

6. Various operations.

* For operations such as HOLD display, relative measurements, RCD storage, DATA CALL,

ENGLISH

108

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Содержание DO 9709

Страница 1: ...DO 9709 INSTRUCTIONS MANUAL...

Страница 2: ...DO 9709 1 15 2 3 4 6 5 7 8 9 10 11 12 13 14 16 17 18 19 20 21 22 23 24 25 26 27 28...

Страница 3: ...81 DO 9709 DO 9709 DISSOLVED OXYGEN DATA LOGGER ENGLISH...

Страница 4: ...ssolved oxygen in mg l 17 The upper display measures the saturation index of dissolved oxygen in 18 The lower display indicates the temperature in C in the measurement of dissolved oxygen 19 The lower...

Страница 5: ...solved oxygen probe guarantees lasting correctness of the measurements taken The instrument s Data Logger function enables it to store up to 30 000 readings The sampling period is variable from 1 seco...

Страница 6: ...ation of dis solved oxygen Electrochemical probe method The German standard DIN 30408 part 23 was also considered German standard methods for the examination of water waste water and sludge Gaseous co...

Страница 7: ...hen this key is pressed during normal operation the value shown on the display is frozen and the HOLD symbol lights up updating of the internal data continues When the key is pressed for the second ti...

Страница 8: ...been sent onto the serial line in immediate or remote mode from the instrument s inter nal memory obtained with the REL function active a report will be provided giving the maximum minimum and mean re...

Страница 9: ...eing pro grammed By continuing to press the PROG key the messages P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P0 etc are displayed for all the programs available Press the ENTER key on one of the points ju...

Страница 10: ...ument automa tically returns to normal operating mode The unloading of data from the instrument memory may be momentarily stopped by pressing the ENTER key Press the ENTER key again to reactivate data...

Страница 11: ...rument automa tically returns to normal operating mode P2 When ENTER is pressed with P2 on the display the storage time parameter may be modified This parameter is used for the fol lowing two function...

Страница 12: ...rage function the instru ment is able to store more than 30 000 acquisitions The time taken to fill the memory completely is a function of the recording interval and may be obtained from the following...

Страница 13: ...ect the desired value The possible values are 19 2 19200 Baud 9 6 9600 Baud 4 8 4800 Baud 2 4 2400 Baud 1 2 1200 Baud 0 6 600 Baud 0 3 300 Baud Finally press ENTER to return to normal operation or pre...

Страница 14: ...month may be set or changed The s and t keys are used to select the desired month Then press PROG to move on to step P6 the ENTER key is not active P6 When ENTER is pressed with P6 on the display the...

Страница 15: ...o move on to step P8 the ENTER key is not active P8 When ENTER is pressed with P8 on the display the minutes may be set or changed The s and t keys are used to select the desired minutes Then press EN...

Страница 16: ...lly it remains always lit When the ON OFF key is pressed storage stops and the instrument switches off 00 With a set storage interval higher than 1 minute the display switches off automati cally after...

Страница 17: ...l the next acquisition Then it switches on again and remains lit To stop storage press the ENTER key The ENTER key is used to return to normal operating mode while pressing the PROG key moves on to st...

Страница 18: ...e instrument will calibrate this probe initially setting the default calibration values If there is no temperature probe inserted in input B the instrument will calibrate the temperature pro be presen...

Страница 19: ...ations are active At this point by pressing the ENTER key it is possible to return to normal operating mode obtai ning only the display of the mea sured pressure Pressing the PROG key begins the proce...

Страница 20: ...eed of 300 baud is accidentally set during programming the time is automatically corrected to 4 sec The Serial Out Memory symbol flashes during the immediate unloading of data onto the serial line The...

Страница 21: ...which to cal culate and store new max min and mean values After resetting of the max min and mean values the RCD func tion has a duration of about 30 000 readings that is 4 hours At the end the RCD fu...

Страница 22: ...e programs for setting salinity and the default temperatu re After CAL has been pressed for more than 2 seconds the mea surements for the dissolved Oxygen mg l or for tempera ture C and F and the SAL...

Страница 23: ...sponding to the saturation index of 101 7 All flashing on the display will cea se and in this way the dissolved Oxygen probe will be calibrated After CAL has been pressed for more than 2 seconds the d...

Страница 24: ...en the PROG key is pressed the chosen salinity is stored The instrument returns to normal ope rating mode and the Sal indication stops flashing Attention If the function for compensating water salinit...

Страница 25: ...n of the SAL signal when the concentration of dissolved Oxygen is shown in mg l indica tes that the instrument is compen sating water salinity according to the set value Attention when the saturation...

Страница 26: ...performed at the rate set during programming of step P2 The data stored between one start and the following stop form a block Different blocks can thus be for med all ending during unloading with the...

Страница 27: ...ial Out Memory symbol lights up when switching on the instrument with the ON OFF key this means that the instrument was in storage status In this stage the Serial Out and PROG keys are not enabled Whe...

Страница 28: ...EY SIMBOLS LIT BESIDES THE NUMBERS FUNCTION DESCRIPTION mg l mg l key Pressing this key changes the dissolved Oxygen measuring unit mg l or The key is active in the states RCD REL DATA CALL and HOLD F...

Страница 29: ...he instrument temperature measu rement refers to the sensor inside the probe If the temperature sensor is disconnected or damaged the instrument continues working using the default temperature for cal...

Страница 30: ...itches off automatically after 8 minutes of inactivity with the following few exceptions a Instrument in RCD status b Instrument in Auto Power Off Disabled status In these two cases the instrument swi...

Страница 31: ...necessary to allow the exhaustion of the dissolved Oxygen in the electrolyte inside the probe With the probe inserted in the connector even if the instrument is switched off the probe is always fed i...

Страница 32: ...obe to a minimum depth of 60 mm into the liquid in which you want to take the measurement the sensor is housed in the end of the probe To take measurements in air the probe must be pointed in a transv...

Страница 33: ...most suitable probe for the measurement to be taken Be careful with the range of use of the probe measurements at limit values are possible only for short periods Above 400 C avoid violent blows or t...

Страница 34: ...t limits the temperature exceeds the range 0 50 C and does not allow the measurement of Oxygen the pressure measurement is wrong and does not allow the measurement of Oxygen the probe is disconnected...

Страница 35: ...HANGING THE BATTERY Repeat the battery changing procedure waiting for a few minutes to allow the circuit condenser capacities to be completely discharged then insert the battery WARNING ON USE OF THE...

Страница 36: ...tion depending on the chosen connector this may not be true on some computers or printers The signals present in pins 2 and 3 are at logic levels compatible with the standard RS 232C The transmission...

Страница 37: ...n progress It is possible to unload data onto a computer using the Xon Xoff protocol to control the data flow The character Xoff hex 13 on the serial line stops the data unloading in progress The char...

Страница 38: ...ENGLISH 116 Dissolved Oxygen probe Temperature probe PRINTER WITH SERIAL INPUT PRINTER WITH PARALLEL INPUT SERIAL PARALLEL CONVERTER DO 9709 DIAGRAM...

Страница 39: ...48 mg l 57 3 9 9 C Min Values 6 47 mg l 57 2 9 8 C Medium Values 6 48 mg l 57 2 9 9 C Salinity none Calibration 08 06 98 21 9 C DISSOLVED OXYGEN Data Logger Immediate serial report DATE TIME O2 T P 0...

Страница 40: ...alues 5 03 mg l 57 2 9 9 C Medium Values 5 03 mg l 57 2 9 9 C Salinity 40 0 g l Calibration 08 06 98 21 9 C DISSOLVED OXYGEN Data Logger Remote memory report DATE TIME O2 T P 09 06 98 16 51 59 0 00 mg...

Страница 41: ...ing the special DELTA OHM CP RS 232C cable Note the CP RS 232C cable ends in a female 25 pin connector if your PC does not have a compatible connector use the adapters normally found on the market to...

Страница 42: ...ne click the COMMUNICATIONS window for setting the communication procedures will appear on the screen set TRANSMISSION SPEED 19200 which must correspond to the speed set on the instru ment one click D...

Страница 43: ...indow one click on the pull down menu select TERMINAL PREFERENCES one click the TERMINAL PREFERENCES window appears on the monitor set mark local Echo one click Character type Terminal or equivalent l...

Страница 44: ...m the terminal window one click select SAVE AS from the pull down menu and the SAVE FILE AS window will appear one click type the name of the terminal setting file max 8 characters on the line provide...

Страница 45: ...e window will appear one click type the name of the file in which data are to be stored max 8 characters on the line provided OK to confirm and start storage one click At this point the terminal is re...

Страница 46: ...t by the instrument select TRANSFER from the terminal window one click to end storage select END from the pull down menu one click The software returns to the terminal window L End use of the TERMINAL...

Страница 47: ...ommunication In the window Description of connection give a name to the communication that you want to activate and choose an icon in subsequent communications it will be possible to activate direc tl...

Страница 48: ...nect property choose directly to COM1 or COM2 depending on the serial gate that you intend to use for communication with the measu ring instrument on the telephone number card select CONFIGURE one cli...

Страница 49: ...ENGLISH 127...

Страница 50: ...select SETTINGS to display the Settings card on the Settings card for the Emulation property select TTY OK to confirm the Properties set one click ENGLISH 128...

Страница 51: ...type select DISPLAY from the Hyper Terminal window one click select CHARACTER from the pull down menu one click and the window for selecting the cha racter will appear set Terminal or equivalent OK to...

Страница 52: ...ore data from an instrument select CALL from the Hyper Terminal window one click select CONNECT from the pull down menu In this way it is possible to receive the characters from the instrument on the...

Страница 53: ...ppear where you have to set the name of the file in which to store the data received from instrument type the name of the file in which data are to be stored on the line provided OK to set the name of...

Страница 54: ...ck select END from the pull down sub menu one click At this point data reception from the instrument is ended and the file stored in the computer can be used with any of the software packages used wit...

Страница 55: ...contains the electrolytic solution In this case the membrane and the electrolytic solution that it con tains must both be changed The probe DO 9079SS allows maintenance Some types of probe such as th...

Страница 56: ...check the probe offset by immersing it in the 0 0 dissolved Oxygen solution DO 9700 2 Pour the zero solution in the phial supplied with the probe into a small container cleaned with distilled water 3...

Страница 57: ...temperature First calibration point 0 0 C or 32 0 F With the Pt100 simulator simulate a temperature of 0 0 C 32 0 F Wait for the reading to become stable Press the PROG button the C symbol or the F s...

Страница 58: ...rument inserted in the calibration oven Press the PROG button the C symbol or the F symbol stop flashing Second calibration point 197 0 C or 386 F Bring the calibration oven to a temperature of 197 0...

Страница 59: ...trument quits the calibration process and returns to normal opera ting mode CONNECTING THE DISSOLVED OXYGEN PROBES To measure dissolved oxygen in liquids the instrument DO 9709 uses polarographic meas...

Страница 60: ...the redox reac tion and the anode in which the oxidation reaction takes place with the liberation of electrons The measurement and internal regulation circuit of the instrument rebalances the potentia...

Страница 61: ...10 3 10 4 10 6 8 10 7 10 9 11 0 11 2 11 3 9 11 5 11 6 11 8 12 0 12 1 10 12 3 12 4 12 6 12 8 13 0 11 13 1 13 3 13 5 13 7 13 8 12 14 0 14 2 14 4 14 6 14 8 13 15 0 15 2 15 4 15 6 15 8 14 16 0 16 2 16 4...

Страница 62: ...7 12 14 12 08 12 02 11 96 11 90 8 11 84 11 78 11 73 11 67 11 61 9 11 56 11 50 11 45 11 39 11 34 10 11 29 11 23 11 18 11 13 11 08 11 11 03 10 98 10 93 10 88 10 83 12 10 78 10 73 10 68 10 63 10 58 13 10...

Страница 63: ...rated concentration of dissolved Oxygen by degree of salinity depending on the temperature ENGLISH 141 T C SALINITY CORRECTION mg l 0 0 0875 1 0 0843 2 0 0818 3 0 0789 4 0 0760 5 0 0739 6 0 0714 7 0 0...

Страница 64: ...be different as long as it stays within the limits stated above Tolerance of platinum thermoresistances Interval expressed in Celsius degrees or in Ohm within which the real characteristic of the res...

Страница 65: ...16 0 21 0 26 0 31 0 35 0 38 C 0 26 0 16 0 06 0 16 0 26 0 36 0 46 0 56 0 66 0 72 OHMS 0 11 0 06 0 02 0 05 0 1 0 13 0 16 0 19 0 21 0 23 C 0 13 0 08 0 03 0 08 0 13 0 18 0 23 0 28 0 33 0 36 OHMS 0 06 0 0...

Страница 66: ...ENGLISH 144 Table of resistances of platinum sensors with regard to temperature ITS 90 Industrial Platinum Resistance Thermometer Sensor R 0 100 00...

Страница 67: ...ENGLISH 145...

Страница 68: ...OBES HD 9010 HD 8602 HD 8705 HD 8706 HD 8804 HD 8901 HD 9117 HD 9021 DO 9406 DO 9505 DO 9417 DO 9704 DO 9709 50 3 TP 870P 400 50 12 TP 870A 300 50 3 TP 871 200 50 3 TP 870 400 50 5 TP 870C 400 40 30 7...

Страница 69: ...mg l in the range 0 00 to 19 99 mg l 0 1 mg l in the range 20 0 to 90 0 mg l automatic change of scale Accuracy of instrument alone 0 03 mg l in condition 60 to 110 1013 mbar 20 to 25 C Temperature p...

Страница 70: ...TP 870 C TP 870 P Pt100 sensor with amplification and linearization circuit or Pt100 4 wire probes with direct input Instrument temperature measuring range 50 200 C Resolution 0 1 C in the range 50 0...

Страница 71: ...probe diam 4x150 mm measuring range 50 400 C TP 870C Contact temperature probe diam 5x230 mm measuring range 50 400 C TP 870A Air temperature probe diam 4x230 mm measuring range 50 300 C CP RS 232C C...

Страница 72: ...locks or releases updating of the display Display blocked Display reset 3 Allows the display storage or sending of the relative values immediately onto the serial line Display of relative values Displ...

Страница 73: ...mum value of the pro bes connected to the inputs 2 The Minimum value of the probes connected to the inputs 3 The Mean value of the probes connected to the inputs 4 Returns to normal operating mode ENG...

Страница 74: ...value and returns to normal operating mode Unloads data from the memory Returns to normal operating mode Erases memory Memory Clear Returns to normal operating mode Confirms the selected value and ret...

Страница 75: ...2 Example 01 January Sets day 01 02 03 31 Example 01 Sets hour 01 02 03 23 Example 00 midnight Sets minutes 01 02 03 59 Example 1 minutes Confirms the selected value and returns to nor mal operating m...

Страница 76: ...ly during storage Confirms the selected value and returns to normal operating mode The instrument uses a probe of the type DO 9709SS to measu re dissolved oxygen The instrument uses a probe of the typ...

Страница 77: ...n of the Record function When the key is pressed the instrument gives a beep and starts storing and updating the MAX MIN and MEAN value When the key is held down for more than one second the instrumen...

Страница 78: ...normal operating mode for 2 seconds 8 Activates modification of the default temperature modification of salinity and calibra tion of the electrode 9 Activation or disactivation of salinity compensatio...

Страница 79: ...Storage phase active Storage phase ended Start Stop mg l Serial Out Memory C Start Stop mg l C Start Stop 12 Changes the dissolved Oxygen measurement unit Shows dissolved Oxygen Shows dissolved Oxyge...

Страница 80: ...attery 113 Warning on use of the batteries 113 STORAGE OF THE INSTRUMENT 113 SERIAL INTERFACE RS 232C 114 Host Commands 115 DO 9709 DIAGRAM 116 EXAMPLE OF A REPORT PRINTED BY THE INSTRUMENT 117 INSTRU...

Страница 81: ...137 Notes on the operation of the polarographic probe 138 Reference tables 139 CONNECTION OF THE TEMPERATURE PROBES 142 Probe connection diagram 142 Platinum thermoresistance 142 Tolerance of platinu...

Страница 82: ...eltaohm tin it Web Site www deltaohm com CE CONFORMITY Safety EN61000 4 2 EN61010 1 level 3 Electrostatic discharge EN61000 4 2 level 3 Electric fast transients EN61000 4 4 level 3 Voltage variations...

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