Sper scientific 850081DOK User manual

Dissolved Oxygen Meter Kit
850081DOK
Instruction Manual

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Dissolved Oxygen Meter Kit - 850081DOK
Copyright ©2017 by Sper Scientic
ALL RIGHTS RESERVED
Printed in the USA
The contents of this manual may not be reproduced
or transmitted in any form or by any means electronic,
mechanical, or other means that do not yet exist or may
be developed, including photocopying, recording, or any
information storage and retrieval system without the express
permission from Sper Scientic.
SPER SCIENTIFIC LTD.
8281 E. Evans Rd., Suite #103
Scottsdale, AZ 85260
[phone]

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INTRODUCTION ................................ 4
FEATURES ..................................... 5
MATERIALS SUPPLIED ........................... 5
FRONT PANEL DESCRIPTION ..................... 6
SETUP ........................................ 7
MEASURMENT FUNCTIONS ..................... 10
pH MEASUREMENTS ........................... 12
DO MEASUREMENTS........................... 15
CONDUCTIVITY MEASUREMENTS ................ 17
SPECIFICATIONS .............................. 21
PROBES ..................................... 21
ACCESSORIES ................................ 23
WARRANTY................................... 24
TABLE OF CONTENTS

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INTRODUCTION
This Sper Scientic Dissolved Oxygen Meter Kit (Model
850081DOK) comes with dissolved oxygen (DO) probe
(850081DO) and also uses optional, interchangeable probes
to read pH, millivolt (mV)/ oxygen reduction potential (ORP),
conductivity, total dissolved solids (TDS), salinity, and
temperature. Order only the probes required for your current
parameters and add additional probes in the future.
Only 850081DO probe comes with this kit. Other Probes
are optional.
The meter features include readings in °C or °F, automatic
temperature compensation (ATC) and salinity and altitude
compensation for DO measurements.
Additional features include automatic shuto󰀨, minimum
and maximum values, a fold-out easel back and a tripod
mounting screw. Automatically recognizes pH bu󰀨ers 4, 7
and 10 for simple calibration when using optional probes

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FEATURES
• Reads DO, and has the option to read pH, mV/ORP,
conductivity, TDS, salinity and temperature with
optional probes
• Automatic temperature compensation
• Salinity and altitude compensation for DO measurements
• Maximum and minimum values
• Hold function
• Temperature units in °C or °F
• Automatic calibration recognition of pH bu󰀨ers when using
optional pH probe (840016)
• Battery or optional DC 9V power adapter
• Tripod mounting screw
• Automatic shuto󰀨
• Backlight
MATERIALS SUPPLIED
• Water Quality Meter
• Instruction Manual
• DC 9V Battery
• Hard Carrying Case

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1. LCD Display
2. Power/Backlight Button
3. Hold/Escape Button
4. Record Button
5. ▲/Range Button
6. ▼/Function Button
7. Set Button
8. Enter Button
9. Easel Stand
10. Battery Compartment
Cover
11. Battery Compartment
Cover Screw
12. Tripod Mounting Screw
13. Temperature Probe
Socket
14. Dissolved Oxygen
Probe Socket
15. Conductivity Probe Socket
16. pH Probe/BNC Socket
17. DC 9V Power
Adapter Socket
18. Reset Button
19. Computer Output Terminal
1.
2.
3.
4.
5. 6.
7. 8.
9.
10.
11.
12.
13.
14.15.
16.
17.
18.
19.
FRONT PANEL DESCRIPTION

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SETUP
Meter On and O󰀨
1. Press POWER to turn the meter on.
2. Press and hold POWER for 3 seconds and release to turn
the meter o󰀨.
Backlight
The backlight will illuminate automatically when the meter is
turned on.
1. Press the backlight button to turn the backlight o󰀨.
2. Press the backlight button again to turn the backlight on.
Entering Setup Mode
1. Press POWER to turn the meter on.
2. Press SET for two seconds to enter Setup Mode.
3. Press SET to cycle through the options until the desired
parameter is displayed.
4. Press ESC at any time to exit Setup Mode.
Automatic Shuto󰀨
1. In Setup Mode, press SET until “PoFF” is displayed.
2. Press ▲ or ▼ to toggle between “Yes” (automatic shuto󰀨
is on) or “No” (disable automatic shuto󰀨).
3. Press ENTER to save the selection.
4. Press SET to continue to the next setup parameter, or
press ESC to exit Setup Mode.

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Beeper
1. In Setup Mode, press SET until “bEEP” is displayed.
2. Press ▲ or ▼ to toggle between “Yes” (beeper is on) or
“No” (disable beeper).
3. Press ENTER to save the selection.
4. Press SET to continue to the next setup parameter, or
press ESC to exit Setup Mode.
Select Temperature Units
1. In Setup Mode, press SET until “t-CF” is displayed.
2. Press ▲ or ▼ to toggle between °C or °F.
3. Press ENTER to save the selection.
4. Press SET to continue to the next setup parameter, or
press ESC to exit Setup Mode.
Select DO Salinity Compensation
This feature is active in DO Mode only.
1. In Setup Mode, press SET until “SALt” is displayed.
2. The default value is 0%. Press ▲ or ▼ to adjust the upper
salinity compensation value.
3. Press ENTER to save the selection.
4. Press SET to continue to the next setup parameter, or
press ESC to exit Setup Mode.

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Select DO Altitude Compensation in Meters
This feature is active in DO Mode only.
1. In Setup Mode, press SET until “HIGh” is displayed.
2. The default value is 0 meters. Press ▲ or ▼ to adjust
the upper altitude compensation value in increments of
100 meters.
3. Press ENTER to save the selection.
4. Press SET to continue to the next setup parameter, or
press ESC to exit Setup Mode.
Select DO Altitude Compensation in Feet
This feature is active in DO Mode only.
1. In Setup Mode, press SET until “HIGhF” is displayed.
2. The default value is 0 feet. Press ▲ or ▼ to adjust the upper
altitude compensation value in increments of 100 feet.
3. Press ENTER to save the selection.
4. Press SET to continue to the next setup parameter, or
press ESC to exit Setup Mode.
Select Conductivity Temperature Compensation Value
This feature is active in Conductivity Mode only.
1. In Setup Mode, press SET until “PEr C” is displayed.
2. The default value is 2% per ° C. Press ▲ or ▼ to adjust
the upper temperature compensation value.
3. Press ENTER to save the selection.
4. Press ESC to exit Setup Mode.

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Select pH Manual Temperature Compensation Value
This feature is active in pH Mode only.
1. In Setup Mode, press SET until “t-SEt” is displayed.
2. The default value is 25° C / 77° F. Press ▲ or ▼ to adjust
temperature compensation value.
3. Press ENTER to save the selection.
4. Press ESC to exit Setup Mode.
System Reset
If the meter appears unresponsive or pressing the keys
produces no result, reset the system:
1. With the meter on, open the cover on the side of the meter.
2. Use a pin or the end of a paperclip to press RESET.
MEASUREMENT FUNCTIONS
Select Function (Mode)
1. Press POWER to turn the meter on.
2. Press FUNCTION to cycle through the available modes
until the desired function is displayed:
• PH
• OrP – oxidation-reduction potential
• do – dissolved oxygen
• O2 - oxygen
• Cd - conductivity
• tdS – total dissolved solids
• SALt – salinity

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3. Follow the specic measurement procedures for the
parameter in use.
Parameter Page
pH 12
mV (ORP) 14
DO 15
O2 16
Conductivity 17
TDS 19
Salinity 19
Data Hold Function
1. During measurement, press HOLD to freeze the reading
on the display. “Hold” appears on the LCD.
2. Press HOLD to return to Normal Mode.
Minimum and Maximum Values
1. During measurement, press REC to begin recording the
readings. “REC” displays on the LCD.
2. Press REC to display the maximum value. “REC MAX”
will display.
3. Press REC to display the minimum value. “REC MIN”
will display.
4. Press REC for 2 seconds to clear MIN/MAX and return to
Normal Mode.

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pH MEASUREMENT
(for use with 840016, 840049 & 840051 optional probes)
Calibration
The pH probe should be calibrated before rst use.
Recalibrate regularly to ensure highly accurate measurement.
Note…
Calibration should begin with pH 7.00 and then be followed
by either pH 4.00 or pH 10.00. Be sure to rinse the electrode
in distilled water between calibration points.
The entire two-point calibration procedure should be
repeated at least twice.
pH Probe Calibration with Automatic Temperature
Compensation (for use with 840038 optional probe)
1. Plug and secure the pH probe into the pH socket on top of
the meter.
2. Plug the optional temperature probe (840038) into the
TEMP socket on top of the meter.
3. Press POWER to turn the meter on.
4. Press FUNCTION to cycle through the available functions
until “pH” is displayed.
5. Immerse the pH probe and the temperature probe into the
standard bu󰀨er solution.
6. Gently shake the pH electrode.
7. The pH value and the temperature of the solution are displayed.
8. Press and hold ▲ and ▼ until “pH” and “CAL” are displayed.
9. Press ▲ or ▼ to select 4.00, 7.00, or 10.00 calibration to
correspond with the bu󰀨er solution.
10. Press ENTER to save the calibration data and return to
Normal Mode.

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11. To clear the existing calibration data, select “CLr” from
the calibration options.
12. Press ENTER to conrm the selection and return to
Normal Mode.
pH Probe Calibration with Manual
Temperature Compensation
1. Plug and secure the pH probe into the pH socket on top of
the meter.
2. Press POWER to turn the meter on.
3. Press FUNCTION to cycle through the available functions
until “pH” is displayed.
4. Immerse the pH probe into the standard bu󰀨er solution.
5. Gently shake the pH electrode.
6. The pH value and the manual temperature setting are displayed.
7. Press and hold ▲ and ▼ until “pH” and “CAL” are displayed.
8. Press ▲ or ▼ to select 4.00, 7.00, or 10.00 calibration to
correspond with the bu󰀨er solution.
9. Press ENTER to save the calibration data and return to
Normal Mode.
10. To clear the existing calibration data, select “CLr” from
the calibration options.
11. Press ENTER to conrm the selection and return to
Normal Mode.
pH Measurement with Automatic
Temperature Compensation
1. Plug and secure the pH probe into the pH socket on top of
the meter.

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2. Plug the temperature probe into the TEMP socket on top
of the meter.
3. Press POWER to turn the meter on.
4. Press FUNCTION to cycle through the available functions
until “pH” is displayed.
5. Immerse the temperature probe into the solution to
be measured.
6. Hold the pH electrode handle and immerse the sensing
head completely into the solution.
7. Gently shake the electrode.
8. The pH value and the temperature of the solution
are displayed.
pH Measurement with Manual
Temperature Compensation
1. Plug and secure the pH probe into the pH socket on top of
the meter.
2. Press POWER to turn the meter on.
3. Press FUNCTION to cycle through the available functions
until “pH” is displayed.
4. Hold the electrode handle and immerse the sensing head
completely into the solution to be measured.
5. Gently shake the electrode.
6. The pH value and the manual temperature setting
are displayed.
mV (ORP) Measurement
(for use with 850088 optional probe)
1. Plug and secure the pH/ORP probe (850088) into the pH
socket on top of the meter.

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2. Press POWER to turn the meter on.
3. Press FUNCTION to cycle through the available functions
until “OrP” is displayed.
4. Hold the electrode handle and immerse the sensing head
completely into the solution to be measured.
5. Gently shake the electrode.
6. The mV value is displayed.
Note…
During pH measurement, simply press FUNCTION to switch
to ORP measurement.
DO MEASUREMENT
DO Probe Calibration
Note…
The DO probe MUST be lled with electrolyte before rst
use. It must be stored with electrolyte solution
The DO probe should be calibrated before rst use. For the
highest level of accuracy, recalibrate before each use.
Air calibration (20.9%) is recommended for simple and
precise calibration. Calibration should be performed in a
well-ventilated environment.
1. Plug the DO probe into the DO socket on top of the meter.
2. Press POWER to turn the meter on.
3. Press FUNCTION to cycle through the available functions
until “O2” is displayed.
4. Wait 5 minutes until the readings stabilize.
5. Press and hold ▲ and ▼ until “CAL” and “20.9”
are displayed.

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6. Press ENTER. The display will count down from 30 to 0 as
calibration occurs.
7. The meter returns to Normal Mode.
Do Measurement
1. Plug the DO probe (850081DO) into the DO socket on top
of the meter.
2. Press POWER to turn the meter on.
3. Press FUNCTION to cycle through the available functions
until “do” is displayed.
4. Hold the electrode handle and immerse the sensing head
at least 10 cm into the solution to be measured.
5. Wait several minutes for the probe and solution to reach
thermal equilibrium.
6. With the probe tip immersed in the solution, shake the
probe or make sure that the liquid has a velocity of at least
0.2 – 0.3 m/s. (A magnetic agitator is recommended to
reduce errors due to the di󰀨usion of the oxygen present in
the air into the solution.)
7. The DO values in mg/L and the temperature of the
solution are displayed.
8. Rinse the probe with tap water after each series
of measurements.
Oxygen in the Air
1. Plug the DO probe (850081DO) into the DO socket on top
of the meter.
2. Press POWER to turn the meter on.
3. Press FUNCTION to cycle through the available functions
until “O2” is displayed.
4.The percentage of oxygen in the air is displayed.

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CONDUCTIVITY MEASUREMENT
(for use with 850081C/TD or 850081C/SG optional probes)
Conductivity Probe Calibration
The conductivity probe should be calibrated before rst use.
Recalibrate the probe periodically to ensure accuracy.
Note…
One-point calibration should be executed at 1.413 mS. For
multi-point calibration, execute 1.413 rst and then proceed
to other ranges.
1. Plug the conductivity probe into the CD socket on top of
the meter.
2. Press POWER to turn the meter on.
3. Press FUNCTION to cycle through the available functions
until “Cd” is displayed.
4. Hold the electrode handle and immerse the sensing head
completely into the standard bu󰀨er solution.
5. Gently shake the electrode.
6. The conductivity value and the temperature of the solution
are displayed.
7. Press and hold ▲ and ▼ until “Cd” and “CAL” are
displayed.
8. Press ENTER to display the values.
9. Press ▲ or ▼ to adjust the conductivity value to
correspond with the standard bu󰀨er.
10. Press ENTER to save the calibration data and return to
Normal Mode.

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Conductivity Measurement
1. Plug the conductivity probe into the CD socket on top of
the meter.
2. Press POWER to turn the meter on.
3. Press FUNCTION to cycle through the available functions
until “Cd” is displayed.
4. Hold the electrode handle and immerse the sensing head
completely into the solution to be measured.
5. Gently shake the electrode.
6. The conductivity value and the temperature of the solution
are displayed.
Manual Range Selection
The meter defaults to automatic range setting. To manually
set the range, press RANGE to cycle through the selections
until the desired range is displayed:
• 200.0 uS
• 2.000 mS
• 20.00 mS
• 200.0 mS
• Auto
Zero Adjustment
“0” should appear on the display when the range is 200 uS
and the probe is not immersed in a solution. If the display
shows a value of < 2.0 uS, adjust the value to zero by
pressing RANGE for 10 seconds until zero is displayed.

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TDS Measurement
1. Plug the conductivity probe into the CD socket on top of
the meter.
2. Press POWER to turn the meter on.
3. Press FUNCTION to cycle through the available functions
until “tdS” is displayed.
4. Hold the electrode handle and immerse the sensing head
completely into the solution to be measured.
5. Gently shake the electrode.
6. The TDS value and the temperature of the solution are
displayed.
Note…
During conductivity measurement, simply press FUNCTION
to switch to TDS measurement.
Salinity Measurement
1. Plug the conductivity probe into the CD socket on top of
the meter.
2. Press POWER to turn the meter on.
3. Press FUNCTION to cycle through the available functions
until “SALt” is displayed.
4. Hold the electrode handle and immerse the sensing head
completely into the solution to be measured.
5. Gently shake the electrode.
6. The salinity value as a percentage of weight is displayed.
Note…During TDS measurement, simply press FUNCTION
to switch to salinity measurement.

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POWER SUPPLY
Battery Power
This meter uses one DC 9 V (006 P) heavy-duty alkaline
battery. To install the battery before rst use:
1. Unscrew and remove the screw on the back battery cover.
2. Slide o󰀨 the battery cover in the direction of the arrows.
3. Insert a new 9 V battery by snapping the terminals into
the connectors.
4. Replace the battery cover and reinstall the screw.
Replace the battery when the low-battery icon shows on the
LCD. However, accurate measurements may still be made
for several hours after the low-battery icon appears.
Note…
Before replacing the batteries, turn the meter o󰀨 and
disconnect the probe. This is necessary for most meters, but
I did not see this instruction in the manufacturer info. Please
remove if it is not necessary.
DC Adapter
Note…
When the optional DC power adapter is connected, the
meter will supply power from the adapter rather than the
batteries. The meter will remain on while the adapter is
connected and the power button will be disabled.
To connect the DC adapter, open the cover on the side
of the meter and insert the adapter plug into the DC 9V
adapter socket.
SPECIFICATIONS