Nova-tech pH-Dissolved Oxygen Meter User Manual

OPERATING INSTRUCTIONSOAKTON®35632-SeriesPortable Waterproof pH/Dissolved OxygenMeterpH/Dissolved Oxygen/°C/°F MeterpH/DO 300 SeriesWATERPROOFMODEHOLD

1918Notes on mg/l (ppm) mode calibrationDuring mg/l (ppm) calibration, the meter adjusts to the barometric pressure value that is programmed intothe m

21205. MeasurementTaking DO readingsDuring measurement, the probe can be:• fully immersed in the solution• partially immersed in the solutionDo not al

2322Salinity adjustmentNOTE: this mode appears in mg/l (ppm) measurement mode only.1. Press the Mode key to select mg/l (ppm)mode.2. Press the SETUP k

24 25Taking measurements with READY indicator selected onIf the READY indicator has been activated, the READY annunciator lights when the reading is s

2726Using the backlit LCDThis feature lets you view readings inlow light situations.1. To activate the backlit LCD feature,press the key to activ

29288. Advanced SETUP functionsThe advanced set up mode lets you customize your meter’s preferences anddefaults. Your OAKTON waterproof meter features

From the % saturation measurement modedPr: Dissolved oxygen parameters • Select Hg or Pa barometric pressure units• Select barometric pressureCAL: Vie

32 33From measurement mode: 1. Press the MODE key to select pH measurement mode.2. Press the SETUP key to enter SETUPmode.See figure3. Press the ▲ and

3534pHSETUPDDSETUP%pHEEP2.2: Electrode slopeNOTE: this parameter is available in pH measurement mode only.From measurement mode:1. If necessary, press

3736From measurement mode:1. Press the MODE key to select pH measurement mode.2. Press SETUP key to enter SETUP mode.3. Press the ▲ and ▼ keys to scro

32Table of Contents1. Introduction...42. Display and keypad f

3938pH mode—P4.0: Resetting to factory default settingsThis program lets you reset all pH parameters to factory default settings. This clears all cali

4140% saturation mode—P2.0: Offset AdjustmentUse the offset adjustment to act as an offset at values between 0 and 100%. It is usefulto match against

4342From measurement mode: 1. Press the MODE key to select the % saturation measurement mode.2. Press the SETUP key to enter SETUPmode.3. Press the ▲

4544P5.2: Selecting °C or °F temperature readoutThis meter lets you select between °C and °F units for temperature readings.From measurement mode:1. P

4746% saturation mode—P7.0: Resetting to factory default settingsThis program lets you reset all parameters to factory default settings. This clears a

4948P1.2 Salinity adjustment modeSalinity correction mode lets you correct forthe variations in oxygen solubility due tosalt concentration in the samp

5150From measurement mode: 1. Press the MODE key to select the mg/l (ppm) measurement mode.2. Press the SETUP key to enter SETUPmode.3. Press the ▲ an

5352From measurement mode:1. Press the MODE key to select mg/l(ppm) mode.2. Press SETUP key to enter SETUP mode.3. Press the ▲ and ▼ keys to scroll th

5554mg/l (ppm) mode——P5.0: Adjusting LCD brightnessThis mode lets you adjust the brightness of the backlit LCD. Selecting a dimmerbacklighting level h

5756DO Probe CareThe probe is a galvanic measuring element whichproduces an output proportional to the oxygen present in the medium in which it is pla

541. IntroductionThank you for selecting an OAKTON meter. This OAKTON portable meter is a microprocessor-based instrument that measures pH, dissolved

5958DO Membrane ReplacementReplacement of the membrane is required onlywhen you cannot calibrate the probe, or if themembrane is damaged.Typical membr

6160DO Electrolyte solutionThe electrolyte solution in your probe’s capwill periodically evaporate and need to bereplaced. 35640-71 replacement electr

636211. Error MessagesLCDIndicates Cause SolutionDisplayErr Unrecognized input Wrong input in Release key. Select annunciator from keypad selected m

656413. AccessoriesMeters35632-02 pH/DO 300 meter Meter only35632-00 pH/DO 300 meter Includes DO probe with 10-ft cable (35640-50), pH elec-trode with

676614. Appendix 1: Meter TheoryDissolved oxygen levels in natural and waste waters depend on the physical, chemical, and biochemical activities in th

696817. WarrantyOAKTON warrants this meter to be free from significant deviations in material and workmanship for a period of three years from date of

76KeypadThe large membrane keypad makes the instrument easy to use. Each button, whenpressed, has a corresponding graphic indicator on the LCD.ON/OFF.

98To connect the pH electrode: 1. Slide the BNC connector of the probe over the BNC connector socket on themeter. Make sure the slots of the connector

1110For directions on how to calibrate your meter:• See sections 4.2-4.3 on pages 11-13 for pH calibration• See section 4.4-4.5 on page 14-16 for % sa

13126. Press ENTER to confirm calibration.The meter is now calibrated to the current buffer.See figure • If you are performing multipoint calibration,

Dissolved Oxygen calibration in percent saturationYou can calibrate this meter quickly and easily in air. The exact calibration valuedepends on barome

Dissolved Oxygen calibration in mg/l (ppm) modeCalibrating the meter to 100 % in saturation mode will also calibrate the mg/l mode at the value in mg/