LaMotte DO 6 PLUS Instructions Manual Download Page 1

1

Code 5-0107-01

99 Washington Street 
Melrose, MA 02176 

Phone

 781-665-

1400

Toll Free 1-800-517-8431

Visit us at www.T

estEquipmentDepot.com

Summary of Contents for DO 6 PLUS

Page 1: ...1 Code 5 0107 01 99 Washington Street Melrose MA 02176 Phone 781 665 1400 Toll Free 1 800 517 8431 Visit us at www TestEquipmentDepot com...

Page 2: ...use of this meter contact the LaMotte Tech Service Department LaMotte Company will not accept any responsibility for damage or malfunction to the meter caused by improper use of the instrument The inf...

Page 3: ...4 mg L or ppm Calibration 16 4 MEASUREMENT 17 4 1 Temperature Compensation 17 4 2 Taking Measurements 18 4 3 Pressure Salinity Compensated Measurements 18 4 4 Holding a Reading 19 5 SETUP 19 5 1 Conf...

Page 4: ...4 11 REPLACEMENT PARTS AND ACCESSORIES 36 12 DISSOLVED OXYGEN THEORY 37 Measurement Units 37 What Is Being Measured 37 Air Calibration 38 Applications 38 13 WARRANTY 39 14 REPAIRS 40...

Page 5: ...ion Temperature measurement is available in degrees Celsius The meter ensures accurate measurement of the dissolved oxygen values through the temperature barometric pressure and salinity compensation...

Page 6: ...tion mode Pressing while in calibration mode will abort calibration without conf rming value MODE Selects desired measurement mode When pressed simultaneously with ON OFF it will go to the SETUP mode...

Page 7: ...ay Low Battery annunciator Calibration Mode Annunciator CAL Temperature Mode A T C annunciator parts per million Percentage Percentage Saturation Mode 2 3 Inserting Removing the Rubber Boot Stand 1 To...

Page 8: ...arrow and lift up Note the polarity of batteries before inserting them into position After the batteries have been replaced reposition the cover and press down until it locks 2 5 Battery Replacement...

Page 9: ...ctor clockwise until it locks 2 To remove the probe rotate the connector in an anti clockwise direction until it unlocks and slide the connector off the socket 3 Insert the mini phono jack of the temp...

Page 10: ...e detachable Noryl cap is 16mm in diameter The compact sensing area reduces air entrapment resulting in quick accurate and stable readings The pre assembled cap must be completely submersed in the sol...

Page 11: ...vision number r is shown brief y before beginning measurement 4 The meter will be in the measurement mode that was in use when it was powered off mg l ppm or T 2 9 Changing the Mode Press MODE to swit...

Page 12: ...g for 0 oxygen note that the meter will take several minutes to reach 0 saturation value and constant stirring is not required The following table lists calibration values in saturation calibration mo...

Page 13: ...y default value Most users utilize the automatic temperature compensation feature that uses the sensor that is built into the probe However manual temperature compensation can be used to input a f xed...

Page 14: ...alibration 1 Rinse the probe thoroughly with DI water or rinse solution 2 Press MODE to select saturation 3 Hold the probe in the air with the tip facing downwards Wait for the reading to stabilize 4...

Page 15: ...ntage calibration point 0 will display brief y before CAL f ashes The value based on the factory default calibration will be shown 5 Press HOLD ENTER to conf rm the calibration The meter will display...

Page 16: ...on gently with the probe Wait for the reading to stabilize 4 Press MODE to select mg L ppm 5 Press CAL The CAL indicator and current concentration will display brief y before CAL f ashes The concentra...

Page 17: ...ture compensation mode For manual temperature compensation manually enter the desired process temperature from 0 to 50 C into the meter The default is 25 C 1 Press MODE to select temperature 2 Press C...

Page 18: ...ntration mg L or ppm c Temperature T 3 Dip the probe into the sample Stir the solution gently with the probe 4 Allow the reading to stabilize and observe the reading To change the concentration units...

Page 19: ...non use The HOLD value is not retained when the meter is shut off automatically or manually 5 SETUP There are two setup menus One menu is derived from the saturation and temperature modes the other m...

Page 20: ...saturation concentration setup only HI mV View the mV value at 100 saturation LO mV View the mV value at 0 saturation Selection of automatic power off 20 min from the last key press Reset Menu A CAL C...

Page 21: ...21 SEt P will display for 1 second ON OFF MODE Switch off from Saturation or Temperature measurement mode Press and hold MODE key and then switch on or Temperature Setup Menu...

Page 22: ...22 SEt P will display for 1 second ON OFF MODE Switch off from Concentration measurement mode Press and hold MODE key and then switch on mg L ppm Concentration Setup Menu...

Page 23: ...lection menu 3 Use or to select YES activate ATC or NO deactivate ATC and activate manual temperature compensation 4 Press HOLD ENTER to conf rm 5 Press CAL to return to measurement mode 5 3 Selection...

Page 24: ...the theoretical mV value The ratio displays from 0 5 to 1 999 The saturation offset allows the electrode offset adjustment made in Section 5 8 Saturation Offset Adjustment to be viewed 1 From the setu...

Page 25: ...onds HI mV displays for 1 5 seconds LO mV displays for 1 5 seconds Viewing of the offset percentage adjustment will be available only if set up menu is selected from the DO Saturation or the Temperatu...

Page 26: ...els of reset Calibration A CAL resets calibration values only User b USR resets all data calibration and other customized setup functions 1 From the setup menu press or to select rSt 5 2 Press HOLD EN...

Page 27: ...meter should be immersed at the same depth as the probe of the DO 6 PLUS Turn the meter off 3 With the meter off keep the MODE key pressed Press and release ON OFF then release MODE The meter should d...

Page 28: ...lay will show the current setting either A HG millimeters of mercury or mm Hg or A PA kilopascal or kPa 5 Use or to select the desired barometric pressure units then press HOLD ENTER to conf rm 6 Use...

Page 29: ...NTER HOLD ENTER HOLD ENTER CO will display for 1 5 seconds CO will display for 1 5 seconds Display will continue to Salinity setting menu b SAL if Set Up menu is entered from mg l ppm mode Otherwise d...

Page 30: ...ple is consumed by the cathode it is essential to have f ow past the membrane to prevent the occurrence of false readings The probe uses very little oxygen for a measurement This enables it to functio...

Page 31: ...sing tip 2 Rinse the probe under running water 3 Mount the nozzle tip onto the syringe provided Fill the syringe with the ref ll solution through the tip of the plastic bottle 4 Hold the probe upside...

Page 32: ...eries Unstable readings a Insuff cient electrolyte in probe b Air bubbles trapped around the probe c Dirty or damaged probe d Probe not deep enough in sample e External noise pickup or induction cause...

Page 33: ...tempted when the factory calibrated absolute value is below 2 00 Verify the solution is above 2 00 Verify the temperature and salinity settings Recondition the probe UR OR with blinking A annunciator...

Page 34: ...w only 0 0 HI mV View mV Value at 100 Saturation View only 50 mV LO mV View mV Value at 0 Saturation View only 0 mV AtO 4 Automatic Power Off YES NO YES rSt 5 Reset to Factory Default Menu A CAL Selec...

Page 35: ...9 mm Hg or 66 6 to 199 9 kPA 1 mm Hg or 0 1 kPA Automatic correction after manual input Automatic Temperature Compensation 0 0 to 50 0 C Manual Temperature Compensation 0 0 to 50 0 C Probe DO Temp Gal...

Page 36: ...Operating Range 0 to 50 C Power Requirements 4 AAA sized batteries included Battery Life 700 hours Alkaline Batteries Dimensions Meter 15 7 x 8 5 x 4 2 cm 255 g Probe 115 mm x 12 mm Dia 3 ft cable Mem...

Page 37: ...linity Freshwater holds more oxygen than saltwater 3 ATMOSPHERIC PRESSURE DO decreases with decreasing atmospheric pressure The amount of DO absorbed in water decreases as altitude increases Solubilit...

Page 38: ...hen DO is reported in terms of partial pressure or Saturation then a temperature and or salinity compensation for oxygen solubility is not necessary Most probes are temperature compensated i e they co...

Page 39: ...tly In boiler water applications the presence of oxygen in the water will increase corrosion and contribute to boiler scale that inhibits heat transfer In such instances it is critical to keep the DO...

Page 40: ...be necessary to return the meter for repair or servicing pack the meter carefully in a suitable container with adequate packing material Often a problem can be resolved over the phone or by email If a...

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