User manual EUTECH INSTRUMENTS ECOSCAN DO 6 DO METER
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Manual abstract: user guide EUTECH INSTRUMENTS ECOSCAN DO 6 DO METER
Detailed instructions for use are in the User's Guide.
[. . . ] Instruction Manual
DO 6
Economy Hand-held Dissolved Oxygen Meter
68X243622 Rev 0 01/04
Technology Made Easy . . .
Preface
This manual serves to explain the use of the Dissolved Oxygen palm-top meter DO 6. This manual functions in two ways: first as a step by step guide to help you operate the meter; second, it serves as a handy reference guide. This manual is written to cover as many anticipated applications of the DO6 palm-top meter as possible. If there are doubts in the use of the Dissolved Oxygen palm-top meters, please do not hesitate to contact the nearest Eutech Instruments / Oakton Instruments authorized Distributor. [. . . ] Continue to take measurements.
2)
3)
A
%
Annunciator Blinks when meter is in "HOLD" mode
Figure 18: Unit in HOLD mode
Note: This meter has a selectable auto off feature which when activated will shut the meter off automatically after 20 minutes of non use. If the meter is shut off either automatically or manually, the HOLD value will be lost
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DO 6
7
ADVANCED SETUP FUNCTIONS
7. 1
Advanced Setup Overview
The advanced setup mode lets you customize your meter's preferences and defaults. There are two Set Up menus: - one which is derived from the % Saturation or Temperature mode and the other is derived from the mg/L (ppm) Concentration mode. 7. 1. 1 1) 2) 3) 4) 7. 1. 2 5) 6) To enter the % Saturation or Temperature Set Up menu: Make sure that the meter is switched-off while in the % Saturation or Temperature measurement mode. "SEt. P" indicator will appear momentarily and "COF. 1" will appear next. To enter the mg/L (ppm) Concentration Set Up menu: Switch off the meter in the mg/L (ppm) Concentration measurement mode. Repeat steps 2 to 3 as above and you will be in the mg/L (ppm) Concentration Set Up menu.
The following table combines the explanation for the features available in both Set Up menus. Figures 19 and 20 give an overall view of the Set Up sequence for the % Saturation or Temperature Set Up menu and the mg/L (ppm) Concentration Set Up menu.
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Instruction Manual SEt. P Enter Set Up Menu
DO 6
COF. 1 Enter Configuration Menu A. ATC Selection for automatic temperature compensation. b. DO Selection of mg/L or ppm of the concentration mode measurement. (Only available in Concentration Set Up menu) CAL. 2 Viewing the latest Calibration data `View only' parameter for the latest calibration data of the DO % Saturation calibration and the DO mg/L (ppm) Concentration calibration. Calibration data will be viewed according to its respective Set Up menu. ELE. 3 Viewing the Electrode properties FACT Viewing the Slope Factor OFS Viewing the % Saturation offset adjustment. (Only available in % Saturation Set Up menu) HI. mV Viewing the mV value for 100% Saturation LO. mV Viewing the mV value for 0% Saturation AtO. 4 Selection of automatic power off (20 minutes from the last key press)
rSt. 5 Enter Reset Menu A. CAL Selection of Calibration Reset (Clear only Calibration and its Data back to factory default condition) b. USR Selection of User Reset (Clear all user setting back to factory default condition)
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Instruction Manual
DO 6 OFS. 6 - % Saturation Offset Adjustment (Only available in % Saturation Set Up menu)
DPr. 7 Enter Barometric Pressure Selection Menu A. HG Selection of Barometric Pressure Setting Adjustment in mmHg A. PA - Selection of Barometric Pressure Setting Adjustment in Kilo Pascal b. SAL Enter the Salinity Setting Adjustment Menu (Only available in mg/L (ppm) Concentration Set Up menu)
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Switch off from % Saturation or Temperature measurement mode. Press and hold MODE key and then switch on.
DO 6
MODE
ON OFF
SEt. P will display for 1 second
Figure 19: Overview of DO 6 % Saturation or Temperature Setup Menu
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Instruction Manual
DO 6
MODE
ON OFF
Switch off from Concentration measurement mode. Press and hold MODE key and then switch on.
SEt. P will display for 1 second
Figure 20: Overview of DO6 Concentration Set up Menu
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DO 6
7. 2
(COF. 1) Configuration Menu
In this menu, the meter lets you configure the selection of automatic temperature compensation (A) and the selection of mg/L or ppm mode for the mg/L (ppm) Concentration measurement mode. (Second feature is only available in mg/L (ppm) Concentration Set Up menu) 7. 2. 1 Selection of Automatic Temperature Compensation
HOLD ENTER
From "COF. 1" of any Set Up menu, 1) Press the HOLD/ENTER key for the display to show the Automatic Temperature Compensation selection menu "A. ATC". NO deactivates the ATC and activates the Manual temperature compensation 4) Press the HOLD/ENTER key to confirm your selection.
HOLD ENTER
2) 3)
Figure 21: Selection of Automatic or Manual Temperature Compensation
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Note: The meter will either return to the main group menu "COF. 1" if % Saturation or Temperature Set Up menu is used or will continue to the mg/L or ppm mode configuration if mg/L (ppm) Concentration Set Up menu is used.
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7. 2. 2
Selection of mg/L or ppm mode
From the "COF. 1" of the mg/L (ppm) Concentration Set Up menu, 1) Press the HOLD/ENTER key thrice to enter the mg/L or (ppm) mode selection menu "b. DO". Press the HOLD/ENTER key to confirm the selection made and to return to the subgroup menu. Press the CAL key to return to the measurement mode.
mg/l
2) 3)
ppm
4)
Figure 22: Selection of mg/L or ppm mode
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7. 3
(CAL. 2) Calibration Data
You can view the latest calibration data for the % Saturation and the mg/L (ppm) Concentration calibrations. The calibration data from each mode can be viewed in the Set Up menu respectively. 7. 3. 1 Viewing the % calibration data Saturation
HOLD ENTER
CAL
From the % Saturation or Temperature Set Up menu, 1) Press the and keys to scroll through the main group to enter the viewing menu "CAL. 2" for the latest calibration data. Press HOLD/ENTER key to view the latest % Saturation calibration data. [. . . ] If water is air saturated, then the partial pressure of oxygen in the water will be the same as it is in air. Therefore, all you need to know is the temperature of the air in which the probe is placed. By consulting solubility tables for oxygen at the particular barometric pressure and salinity of the water being measured, the corresponding concentration (mg/L or ppm) can be found for air saturated water at the air calibration temperature, and the meter can be set accordingly. Because most meters are temperature compensated, they will still give correct readings in mg/L even though the actual water temperature may be different to the air calibration temperature. [. . . ]
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