Lamotte DO 6 Dissolved Oxygen Meter User Manual

DO 6Instruction ManualEconomy Hand-held Dissolved Oxygen MeterCode 5-0107

3.4 Dissolved Oxygen Probe InformationThe DO 6 hand-held meter is supplied witha Dissolved Oxygen Probe that works ongalvanic principle, that is, it d

3.5 Connecting the Probe to Meter1. Insert the BNC connector from the electrode to the BNC connector socketon the meter accordingly and rotate connect

3.6 Switching the Meter OnWhen switching the meter on, it will go through a series of display, eventuallyshowing the revision number of the meter befo

3.7 Measurement Mode Selection:- Percentage Saturation (%),Concentration (mg/L)(ppm) and Temperature(T)By simply pressing the MODE key, you can select

4 CALIBRATION4.1 Important Information on Meter CalibrationYour meter has three measurement modes namely the DO % saturationmeasurement mode, the DO m

window is +/- 40% of the factory default value. However the minimum point ofcalibration is 2 mg/L.When you recalibrate your meter in % saturation mode

Always rinse the probe with either DI water or rinse solution before and aftereach calibration/sample measurement. When calibrating in air, make sure

2. Dip the probe to a solution of known temperature (i.e. a temperaturebath).Allow some time for the reading to stabilize.3. Press the CAL key. The CA

3. Hold the probe in the air with the sensor facing downwards. Wait for thereading to stabilize.4. Press the CAL key. The display will show the intend

measurement of 10.1% to 49.9%, thedisplay will show the absolute valuemeasurement for 1.5 seconds beforedisplaying Err.1 and goes to themeasurement mo

5. Press the CAL key. The display will show a value which is withrespect to the factory default calibration with a CAL indicatorblinking at the corner

5.2 Manual Temperature CompensationFor manual temperaturecompensation, simply deactivate the“A.ATC” mode as explained in theset up menu on page . Thea

5.3 Taking MeasurementsDuring measurement, care must be takento ensure that the probe’s membranesurface does not touch anything. Stiraround the soluti

Temperature mode. Salinity setting feature, on the other hand, will only beavailable when Set Up menu is derived from the mg/L (ppm) Concentrationmode

5.4.2 Salinity Setting AdjustmentNOTE: This mode is availableonly from the mg/L (ppm)Concentration Set Up menu.1. Repeat steps 1 to 5 as in thesteps o

24HOLDENTERHOLDENTERHOLDENTERHOLDENTER.7..760HOLDENTERco750101.3co105. 2“CO” will displayfor 1.5 seconds“CO” will displayfor 1.5 secondsDisplay will c

6 HOLD FunctionThis feature lets you freeze the display for a delayed observation. HOLD can beused in any measurement mode.1. To hold a measurement, p

2. With the MODE key pressed, power the unit on by pressing the ON key.Release the ON key before releasing the MODE key.3. “SEt.P” indicator will appe

rSt.5 – Enter Reset MenuA.CAL – Selection of Calibration Reset (Clear only Calibrationand its Data back to factory default condition)b.USR – Selection

7.2 (COF.1) ConfigurationMenuIn this menu, the meter lets youconfigure the selection ofautomatic temperaturecompensation (A) and theselection of mg/L

PREFACEThis manual serves to explain the use of the Dissolved Oxygen hand-held meterDO 6.This manual functions in two ways: first as a step by step gu

1. 1.Press the HOLD/ENTER key for the display to show the AutomaticTemperature Compensation selection menu “A.ATC”.2. Press the HOLD/ENTER key to ente

7.3 (CAL.2) Calibration DataYou can view the latestcalibration data for the %Saturation and the mg/L (ppm)Concentration calibrations. Thecalibration d

very useful in determining the life efficiency of the electrode. These electrodeproperties can be examined through its data in % Saturation and mg/L (

7. Press the HOLD/ENTER key. The display will show “LO.mV”momentarily before displaying the sensor’s mV output value with respect to0% Saturation.8. P

7.5 (AtO.4) Automatic OffThis feature is useful for batteries energyconservation. The meter automaticallyshuts off 20 minutes from the last keypress.F

7.6.1 Calibration ResetFrom any Set Up menu:1. Scroll the Set Up main group menu byusing the p and q keys until the meterdisplays the Reset to Factory

7.6.2 User ResetThis program clears all dataincluding calibration andother customized setupfunctions and reset it tofactory default.You can skip Calib

7.7 (OFS.6) % Saturation Offset AdjustmentThis is a useful feature that allows youto offset meter’s value when crossreferenced with another DO meter.T

7.8 (DPr.7) Dissolved Oxygen ParametersThis Set Up menu allows you to set the barometric pressure and the salinityvalue of the sample to be measured.

38HOLDENTERFigure 28: Pressure Setting Adjustment SequenceHOLDENTERHOLDENTERHOLDENTER“CO” will display for1.5 secondsHOLDENTERHOLDENTERHOLDENTER“CO” w

TABLE OF CONTENTS1 Introduction...52 Display & Keypad Functions ...52.1 Display ...

7.8.2 Salinity Setting AdjustmentNote: This mode is available only fromthe mg/L (ppm) Concentration Set Upmenu.1. Repeat steps 1 to 5 as in the stepso

possible to measure the partial pressure of oxygen in the sample at a giventemperature.Since the DO in the sample is consumed by the cathode it is ess

4. Hold the probe upside down. Insert the nozzle tip into one of the 4 holessurrounding the silver cathode. Inject the fill solution into the probe bo

9 TROUBLE-SHOOTING GUIDEProblem Cause SolutionNodisplaywhenturned ona) Batteries not in placeb) Batteries not incorrect polarity (+and – position).c)

10 ERROR MESSAGESLCD Display Indicates Cause SolutionLow BatteryindicatorLow batterylevelNeed new batteries orbattery connection isbad.Clean battery c

11 FACTORY DEFAULT SETTINGSSettingMenuFunction ParameterOpting KeysParameterOptonsDefaultSettingCOF.1 Unit Configuration Parameter TitleOnlyParameterT

SettingMenuFunction ParameterOpting KeysParameterOptionsDefaultSettingOFS.6 Offset Adjustment (%Saturationp and q +/-10.0 ofmeasuredreading0.0%DPr.7 B

12 SPECIFICATIONS% Saturation ModeRangeResolutionRelative accuracy0.00 – 200.0 %0.1 %± 1.5% of Full Scalemg/L (ppm)Concentration ModeRangeResolutionRe

% Saturation CalibrationPoints100% in saturated air orair-saturated water.0% in zero oxygen solution% Saturation CalibrationLimitsFactory calibrated a

13 ACCESSORIESCodeDO 6 meter and probe kit 5-0107DO probe 26094-65Replacement caps (2) withpre-installed membrane and 10-mLelectrolyte26094-6614 ADDIT

7.2 (COF.1) Configuration Menu ... 287.2.1 Selection of Automatic Temperature Compensation ...287.2.2 Selection of mg/L or ppm mode

14.1.2 Measurement UnitsOne measure of DO in water is parts per million (ppm) which is the number ofoxygen molecules (O2) per million total molecules

electrochemically reduced to hydroxyl ions producing an electrical currentwithin the probe:O2 +2H2O+4e-à 4OH–Since all oxygen entering the probe is ch

14.1.5 ApplicationsOxygen is essential for fish, invertebrate, plant, and aerobic bacteriarespiration. DO levels below 3 ppm are stressful to most aqu

or replacement of the product. The warranty set forth above is inclusive andno other warranty, whether written or oral, is expressed or implied.16 RET

LaMOTTE COMPANYHelping People Solve Analytical Challenges®802 Washington Ave. • PO Box 329 • Chestertown • Maryland • 21620USA800-344-3100 • 410-778-3

1 INTRODUCTIONThank you for purchasing the DO 6 Dissolved Oxygen palm-top meter. Thiseconomy microprocessor-based hand-held meter has a large custom L

2.2 KeypadThe DO 6 meter has 6 keys on its splash-proof keypad; ON/OFF,HOLD/ENTER CAL, MODE,p and q keys. Some buttons have severalfunctions depending

3 PREPARATION3.1 Inserting & Removing Rubber Boot1. To remove meter from rubber boot, push out from the bottom edges ofmeter until it is completel

3.2 Inserting the BatteriesThe battery compartment is found at the back of instrument as shown inFigure 3. To open the battery compartment first remov