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OXY 7 _ Ver. 1.0 _ 02/2017

OXY 7

Portable oximeter OXY 7

Polarographic sensor

%O

2

/ mg/l / Temp. / mbar

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Содержание OXY 7

Страница 1: ...OXY 7 _ Ver 1 0 _ 02 2017 OXY 7 Portable oximeter OXY 7 Polarographic sensor O2 mg l Temp mbar ...

Страница 2: ...ration interval 6 4 Dissolved oxygen measurement 6 4 1 Before starting 6 4 2 Methods of measurement 6 4 3 Making the measurement 7 4 4 Compensation of the barometric pressure 7 4 5 Salinity compensation manual 7 4 6 Automatic temperature Compensation ATC 7 4 7 Manual Temperature Compensation MTC 7 5 Maintenance of the probe DO7 3mt 8 5 1 Replacing the electrolyte 8 5 2 Maintenance of the anode and...

Страница 3: ...table below are the connections for the probe Model Description OXY 7 BNC Connection for polarographic oxygen sensor DO7 3mt RCA Temp Connection for the temperature sensor Type of parameter Actual value Stability indicator Points of calibration Temperature probe connected ATC Temperature value ...

Страница 4: ...st selected mode 1 3 3 Switching off the instrument In the measurement mode press and hold for 3 seconds to turn off the instrument 1 3 4 Auto power off This meter powers off automatically after 20 minutes of inactivity To deactivate auto power off go to the parameter P6 8 of setup menu and select Off On Auto power off enabled Off Auto power off disabled During calibration and setup press to exit ...

Страница 5: ...ration press to confirm when stable During setup press to select confirm the program Long press When working with manual temperature compensation MTC to change the temperature value keep pressing this button until the temperature value starts flashing adjust the value with these keys and press to confirm Momentary press During setup press to scroll in setup menu In setup parameter press to change ...

Страница 6: ...arly 2 4 Polarization time The polarographic sensor needs to be polarized prior to making the measurements Connect the probe to the instrument and switch on with button the device turns on and starts the countdown for the polarization time At the end of the countdown the meter enters in measurement mode and it is ready to make measurements The polarization time is 10 minutes However if the instrum...

Страница 7: ...alibration with zero oxygen standard Normally it is sufficient to calibrate the instrument in air at 100 as explained previously However in some cases it may also be necessary to calibrate at 0 for example when You change the probe with a new one The probe is not used for long period over one month A complete maintenance of the sensor is performed The instrument does not calibrate at 100 in which ...

Страница 8: ...ew one The probe is not used for a long time After the sensor maintenance 4 Dissolved oxygen measurement 4 1 Before starting In order to reduce measurement errors and achieve the greatest possible accuracy observe the following rules before you begin The sensor must be calibrated The sensor must be vertical with the membrane downwards Remove the protective cap The sensor must be at the same temper...

Страница 9: ...influences the dissolved oxygen partial pressure For a correct measurement you must set the salinity value of the sample If you make oxygen measurements on salt water or sea water it is important to correct the measurement by setting the salinity value indicative of the sample The value set by default is 0 ppt to change access to P5 2 parameter of the setup menu and set the desired value between 0...

Страница 10: ...ht leakage of electrolyte during the screwing of the membrane ensures that inside there are no air bubbles 5 Wash the probe and leave in distilled water for at least half an hour to rehydrate the membrane Make a Calibration of the oxygen sensor If doesn t work proceed with Maintenance of the anode and the cathode 5 2 Maintenance of the anode and the cathode The sensitive part of the probe is compo...

Страница 11: ...its Check the connection between the probe and the instrument Check the integrity of the probe Perform a new calibration 9 The built in barometric sensor is not working properly Replace the batteries Contact technical support 7 Restore to factory default setting To restore the factory settings access the parameter P5 5 setup menu Press the display will show NO flashing With the or keys choose Yes ...

Страница 12: ...Anytime press key to exit from setup menu and to return in the measurement mode the changes made and confirmed with key will be saved 9 1 Setup Menu Main Menu During SETUP menu the instruments cannot be switched off you first need to exit from SETUP with key Note P5 1 Calibration at 0 P5 2 Salinity compensation P5 5 Restore factory defaults P5 6 Calibration of temperature sensor Sub menu of parame...

Страница 13: ...ors it is possible to make an adjustment of 5 C 10 2 Calibration procedure Connect the temperature sensor to the instrument immerse the probe into a thermostatic bath pre thermostated together with the reference thermometer Wait 10 minutes for the stability if the reading is equal to the reference sensor 0 5 C then it is not necessary to perform any calibration otherwise access the parameter P5 6 ...

Страница 14: ... C Resolution 0 1 C 0 1 C Accuracy 0 5 C 0 5 C Automatic and manual temperature compensation Yes Yes only automatic Salinity measuring range 0 50 ppt 0 50 ppt Salinity compensation Yes manual Yes manual GLP system No Yes Display LCD LCD backlight Data memory No Man Auto 500 Data with date and time Data logger function No Yes Date and time No Yes Memory data of calibration No Yes CAL DUE calibratio...

Страница 15: ...ard zero 0 Oxygen single use kit of 5 bottles for DO7 3MT LDO70 2MT LDO70 10MT 6030 0072 Standard zero 0 Oxygen single use 1 bottle for DO7 3MT LDO70 2MT LDO70 10MT 13 Disposal of electronic devices The electrical and electronic equipment marked with this symbol cannot be disposed of in public landfills According to the UE Directive 2002 96 EC the European users of electrical and electronic equipm...

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