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4

Measurement

16

4.4  Holding a Reading

To hold the displayed
reading momentarily, press

HOLD/ENTER

during

any measurement. The %,
mg/L, ppm or T annunciator
will blink, indicating that the value is held.

Press 

HOLD/ENTER

again to deactivate the HOLD function. The meter reverts

to the current active measurement and the annunciator will stop blinking.

If the auto-off feature is activated, the meter will turn off automatically after
20 minutes of non use The HOLD value is not retained when the meter is
shut off automatically or manually.

Annunciator
Blinks when
meter is in
“HOLD” mode

Micro600DO_ZI INST 1240  16/9/15  12:57  Page 16

Summary of Contents for Micro 600

Page 1: ...Palintest ZI INST 1240 Palintest Micro 600DO Meter Micro600DO_ZI INST 1240 16 9 15 12 57 Page 1 ...

Page 2: ...ns of the Micro 600 DO meter as possible If there are doubts in the use of this meter please contact us Our contact details are on the last page of this manual Palintest will not accept any responsibility for damage or malfunction to the meter caused by improper use of the instrument The information presented in this manual is subject to change without notice as improvements are made Please refer ...

Page 3: ...surements 15 4 3 Pressure Salinity Compensated Measurements 15 4 4 Holding a Reading 16 5 Setup 17 5 1 Configuration Menu COF 1 21 5 2 Automatic Temperature Compensation A ATC 21 5 3 Selection of mg L or ppm b DO 21 5 4 Calibration Data CAL 2 22 5 5 Electrode Data ELE 3 22 5 6 Automatic Shut Off AtO 4 24 5 7 Reset to Factory Default rSt 5 24 5 8 Saturation Offset Adjustment OFS 6 25 5 9 Pressure S...

Page 4: ...grees Celsius The meter ensures accurate measurement of the dissolved oxygen values through its temperature barometric pressure and salinity compensation features Meter kits include a dissolved oxygen probe DO membrane maintenance set zero oxygen solution deionised water a rubber armour stand 4 alkaline AAA batteries instruction manual and warranty card For additional information see Section 11 RE...

Page 5: ... confirm selections in SETUP mode Increment decrement values during calibration mode or scroll through SETUP menus Set offset adjustments and configuration settings 5 2 1 Description of Keypad Functions 2 2 Description of LCD Annunciators Active LCD display for Micro 600 DO Your meter has a large custom LCD that consists of 4 digit segments plus annunciators for percentage saturation concentration...

Page 6: ...t into position Lift up the stand at the back of meter for bench top applications if necessary See Figure 2 2 3 Inserting removing the rubber armour stand Figure 1 Figure 2 The battery compartment is found at the back of instrument To open the battery compartment push in the direction of arrow and lift up the cover Note the polarity of battery before inserting into position After replacement place...

Page 7: ...probe PT 148 3 The Micro 600 DO includes a galvanic DO electrode PT 148 3 which doesn t require warm up It generates a millivolt signal proportional to the amount of oxygen in the solution The electrode has a dual cable a BNC connector for DO measurement and a phono jack plug for temperature The sensor utilises a cathode anode and electrolyte that are separated from the sample by an oxygen permeab...

Page 8: ...n by rinsing after daily use See Section 6 PROBE MAINTENANCE Press ON OFF to power up your meter Your meter will cycle through various setup parameters when switched on 1 All LCD segments will briefly illuminate 2 The model Micro 600 DO will display next along with mg l ppm and annunciators 3 Next the meter revision number r is shown briefly before beginning measurement 4 The meter begins with the...

Page 9: ...oncentration mode If calibrating 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 mode with two different barometric pressures Note that the saturation value 92 1 has decreased due to the lower barometric pressure entered If calibration is attempted fro...

Page 10: ...been factory calibrated however if it changes over time or if the probe is replaced calibration may be necessary To protect from erroneous calibrations the allowable tolerance is limited to 5 C adjustment of the factory default value Most users utilise automatic temperature compensation using the sensor that is built into the probe However manual temperature compensation can be used to input a fix...

Page 11: ...e easily calibrated in air For best DO accuracy ensure that the barometric pressure value is accurate The barometric pressure factory default is 760mm Hg which results in a theoretical calibration value of 100 saturation in air If the barometric pressure setting has been changed from 760mm Hg the meter will automatically adjust to a new saturation calibration value instead of 100 This new value is...

Page 12: ...e reading to stabilise 4 Press CAL The CAL indicator and intended percentage calibration point 0 display briefly before CAL flashes The value based on the factory default calibration is shown 5 Press HOLD ENTER to confirm the calibration The meter displays CO automatically calibrates to 0 0 saturation then returns to measurement mode Micro600DO_ZI INST 1240 16 9 15 12 57 Page 12 ...

Page 13: ...tch the known oxygen concentration value 7 Press HOLD ENTER to confirm the calibration The meter displays CO automatically calibrates to the entered value then returns to measurement mode NOTE The minimum calibration value is 2 mg L To prevent erroneous calibrations the calibration is limited to 40 adjustment of the factory default value 3 4 mg L or ppm Calibration Performing a 100 saturation cali...

Page 14: ... compensation mode For manual temperature compensation manually enter the desired process temperature into the meter from 0 and 50 C Default is 25 C 1 Press MODE to select temperature 2 Press CAL The CAL indicator will start blinking and the display will show the last manually set temperature value 3 Check the temperature of your sample using an accurate reference thermometer Wait for the value to...

Page 15: ...provide stirring of your solution this helps to overcome the oxygen consumption of the probe and prevents air bubble entrapment do not strike against hard surfaces and do not submerge the cable for extended periods 4 3 Pressure Salinity Compensated Measurements During measurement the dissolved oxygen reading is automatically compensated for salinity and pressure based on values entered in the setu...

Page 16: ...ER again to deactivate the HOLD function The meter reverts to the current active measurement and the annunciator will stop blinking If the auto off feature is activated the meter will turn off automatically after 20 minutes of non use The HOLD value is not retained when the meter is shut off automatically or manually Annunciator Blinks when meter is in HOLD mode Micro600DO_ZI INST 1240 16 9 15 12 ...

Page 17: ...ess ON OFF to power off OR Press MODE to display mg L or ppm Press ON OFF to power off 2 With the meter off keep the MODE key pressed Press and release ON OFF then release MODE The meter should display SEt P after ON OFF is released and COF 1 after MODE is released Press CAL one or more times as needed during setup mode to exit and return to measurement mode at any time Micro600DO_ZI INST 1240 16 ...

Page 18: ...n kilopascal b SAL Salinity adjustment available from concentration setup only Configuration Menu A ATC Automatic Temperature Compensation b DO Select mg L or ppm units for concentration mode available from concentration setup only View the latest calibration data according to the respective setup menu View the electrode properties FACT View the slope factor OFS View the saturation offset adjustme...

Page 19: ...5 Setup 19 Switch off from Saturation or Temperature measurement mode Press and hold MODE key and then switch on or Temperature Setup Menu Micro600DO_ZI INST 1240 16 9 15 12 57 Page 19 ...

Page 20: ...5 Setup 20 Switch off from Concentration measurement mode Press and hold MODE key and then switch on mg L ppm Concentration Setup Menu Micro600DO_ZI INST 1240 16 9 15 12 57 Page 20 ...

Page 21: ...ion mg L or ppm ATC is recommended for most applications 1 From COF 1 of either setup menu press HOLD ENTER to display A ATC 2 Press HOLD ENTER to enter the selection menu 3 Use to select YES activate ATC or NO deactivate ATC and activate manual temperature compensation 4 Press HOLD ENTER to confirm 5 Press CAL to return to measurement mode 5 3 Selection of mg L or ppm b DO 1 From COF 1 of the mg ...

Page 22: ...a for saturation or mg L ppm modes enter from the corresponding setup menu The electrode slope factor gives an indication of the probe s efficiency It is the ratio of the actual mV produced by the probe to the theoretical mV value The ratio displays from 0 5 to 1 999 The saturation offset allows you to view the electrode offset adjustment made in Section 5 8 Saturation Offset Adjustment 1 From the...

Page 23: ...ess HOLD ENTER again LO mV is momentarily shown before displaying the electrodes mV output at 0 Press CAL to exit the setup mode and return to measurement mode at any time Micro600DO_ZI INST 1240 16 9 15 12 57 Page 23 ...

Page 24: ...settings There are two levels of reset Calibration A CAL resets calibration values only User b USR resets all data calibration and other customised setup functions 1 From the setup menu press to select rSt 5 2 Press HOLD ENTER to enter the menu 3 Press HOLD ENTER to enter calibration reset A CAL 4 Use to select YES reset calibration or NO do not reset calibration 5 Press HOLD ENTER to confirm If Y...

Page 25: ...tup menu 4 Press to select OFS 6 5 Press HOLD ENTER to enter the menu The display will momentarily show the measured reading based on the last calibration before displaying the last offset adjusted value 6 Use to enter the value of the reference DO meter 7 Press HOLD ENTER to confirm 8 Press CAL to return to measurement mode Note User calibrations will reset the offset adjustment to 0 0 5 8 Satura...

Page 26: ...he current setting either A HG millimeters of mercury or mm Hg or A PA kilopascal or kPa 5 Use to select the desired barometric pressure units then press HOLD ENTER to confirm 6 Use to set the actual pressure value and press HOLD ENTER to confirm If values were changed the confirmation indicator CO will display briefly 7 Next b SAL salinity adjustment will display DPr 7 main group menu will displa...

Page 27: ...5 Setup 27 Pressure Salinity Adjustment Sequences Micro600DO_ZI INST 1240 16 9 15 12 57 Page 27 ...

Page 28: ...robe uses very little oxygen for its measurement This enables it to function correctly with liquid movement as low as 2 inch sec across membrane The permeability of the membrane to oxygen varies greatly with temperature Therefore compensation is needed for this variation The Micro 600 DO probe comes with built in temperature compensation for the membrane variation Proper maintenance will help you ...

Page 29: ...fill solution into the probe body until solution leaks out from the fill hole approximately 5mL 5 Replace pre assembled cap by tightening clockwise until hand tightened 6 Allow at least 1 hour for the electrode to equilibrate before usage 6 Probe Maintenance 29 6 2 Electrolyte Solution The electrolyte solution in your probe s cap will deplete on usage and will need to be replaced periodically The ...

Page 30: ...ot in place b Batteries not in correct polarity position c Weak batteries a Insufficient 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 caused by nearby electric motor f Broken probe a Dirty Oily probe b Temperature is changing No display when turned on Unstable readings Slow response a Pre...

Page 31: ...and salinity settings Recondition your probe ATC probe error Under Range Over Range ATC probe is disconnected or broken with the ATC feature activated Temperature is out of range Connect the ATC plug to the meter Verify the temperature accuracy Ensure probe is not broken or punctured with blinking A annunciator in Saturation and Concentration Mode ATC probe error ATC probe is disconnected or broke...

Page 32: ...ion HI mV View only 0 mV View mV Value at 0 Saturation LO mV YES NO YES Automatic Power Off AtO 4 Reset to Factory Default Menu rSt 5 NO YES NO Selection of Calibration Reset A CAL NO YES NO Selection of User Reset b USR 10 0 0 0 Saturation Offset Adjustment OFS 6 Dissolved Oxygen Parameters Menu DPr 7 500 1499 760 Pressure Adjustment in mm Hg A HG 66 6 199 9 101 3 Pressure Adjustment in kPa A PA ...

Page 33: ... achieve 95 of the reading Saturation Calibration Points 100 in saturated air or air saturated water 0 in zero oxygen solution Saturation Calibration Limits Factory calibrated absolute value of 10 0 and below for 0 point 50 to 200 for 100 point Concentration Calibration Window 40 from the factory default measurement value Minimum reading allowed is 2 00mg L ppm Temperature Calibration Window 5 C f...

Page 34: ...gen DO Kit Replacement DO Probe standard cable DO membrane maintenance set Zero Oxygen Calibration Solution 500ml Zero Oxygen Calibration Solution wide neck bottle 150ml Zero Oxygen Calibration Solution wide neck bottle 600ml Deionised Water 500ml Description Product Code Micro600DO_ZI INST 1240 16 9 15 12 57 Page 34 ...

Page 35: ...nd algae during photosynthesis The amount of DO that can be held by water depends on 3 factors 1 TEMPERATURE DO increases with decreasing temperature colder water holds more oxygen 2 SALINITY DO increases with decreasing salinity freshwater holds more oxygen than saltwater does 3 ATMOSPHERIC PRESSURE DO decreases with decreasing atmospheric pressure amount of DO absorbed in water decreases as alti...

Page 36: ...te at which oxygen enters the probe is a function of the partial pressure of oxygen in the gas or in liquid being measured When a probe is placed in air saturated water the current it produces will not be affected by the temperature or salinity of the water The DO concentration in the water however will vary with temperature and salinity Because it is convenient to report DO concentration in mg L ...

Page 37: ...stry Low DO indicates a demand on the oxygen of the system Natural organic material such as leaves accumulate in the stream and create an oxygen demand as it is decomposed Organic materials from human activities also create an oxygen demand in the system Micro organisms consume oxygen as they decompose sewage urban and agricultural run off and discharge from food processing plants meat packing pla...

Page 38: ...a period of six months from date of purchase This guarantee excludes accidental damage or damage caused by unauthorised repair or misuse Should repair be necessary please contact Palintest or your local distributor quoting the serial number on the base of the instrument This guarantee does not affect your statutory rights Micro600DO_ZI INST 1240 16 9 15 12 57 Page 38 ...

Page 39: ...Micro600DO_ZI INST 1240 16 9 15 12 57 Page 39 ...

Page 40: ... NSW 2210 Australia Tel 61 1300 131516 Fax 61 1300 131986 palintest palintest com au Palintest USA 1455 Jamike Avenue Suite 100 Erlanger Kentucky 41018 USA Tel 1 859 341 7423 Toll Free 800 835 9629 Fax 1 859 341 2106 info palintestusa com Palintest China Room 1711 Fanli Mansion 22 Chaowai Street Chaoyang District Beijing 100020 PRC Tel 86 10 6588 6200 Fax 86 10 6588 8311 china palintest com Palint...

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