Bante Instruments DOscan10 User manual

DOscan10 Pocket Dissolved Oxygen Tester
USER MANUAL
Bante Instruments Inc.

1 IDOscan10
Overview
Thank you for selecting the DOscan10 pocket dissolved oxygen tester.
This user manual provides a step-by-step guide to help you operate.
the tester, please carefully read the following instructions before use.
Installing the Batteries
1. Twist the connector collar counter clockwise, pull the connector.
away from the tester.
2. Insert two AAA alkaline batteries into the battery compartment,
note polarity.
3. Push the connector into the tester and twist the connector collar
clockwise until tight.
Keypad
Key
Function
•Press and hold the key to switch the tester on or off
•Lock or unlock measurement
•Exit the calibration, settings and return to the
dissolved oxygen measurement
•Start calibration
•Press and hold the key to enter the setup menu
•Select an option
•Confirm the calibration, settings or displayed option
Display
Icon
Description
When the battery voltage falls below the minimum
power requirements, the icon automatically
disappears
MEAS
Indicates that the tester is in the measurement mode
CAL
Indicates that the tester is in the calibration mode
SETUP
Indicates that the tester is in the setup mode
ATC
Indicates that the temperature compensation is enabled
Prior to Use
Filling the Electrolyte Solution
1.1 Take out the dissolved oxygen electrode from the carrying case.
Unscrew the membrane cap from the bottom of the electrode,
rinse the inside and outside with distilled water and blot dry.
1.2 Fill the membrane cap halfway with electrolyte solution.
1.3 Screw membrane cap back onto the electrode. Some electrolyte
solution will overflow during this process.
1.4 Check the electrode, ensure that no air bubbles are trapped in the
electrolyte solution and membrane is not creased or damaged.
Polarizing the Electrode
2.1 Insert the electrode connector into the connector socket on tester,
ensure that the connector is fully seated.
2.2 Press and hold the Meas key to switch on the tester and wait 10
minutes for the electrode to polarize.
Remove air bubbles

DOscan10 I2
Setup Menu
The DOscan10 tester contains 8 menu items in the setup menu, the
following table describes the functions of each option.
Menu Item
Option and Description
Salinity Coefficient
Set the salinity compensation coefficient of sample.
0 to 35 g/L (default 0 g/L)
Pressure Coefficient
Set the barometric pressure coefficient according to
the local altitude (refer to page 3).
450 to 850 mmHg (default 760 mmHg)
Calibration Points
Set the number of calibration points.
1 point (default)
2 points
Measurement Unit
Set the default measurement unit.
mg/L
Milligrams per liter (default)
ppm
Parts per million
%
Percentage saturation
Degrees Celsius (default)
Degrees Fahrenheit
Temperature Calibration
Refer to page 4.
Reading ± 10°C
Reading ± 10° F
Auto-Hold
If enabled, the tester will automatically sense and
lock the measurement endpoint.
Enable
Disable (default)
Auto-Power Off
If enabled, the tester will automatically switch off
if no key is pressed within 8 minutes.
Enable
Disable (default)
Factory Reset
If enabled, all of the calibration values and current
settings will be deleted or reset to the factory
defaults, the tester must be recalibrated.
Enable
Disable (default)
Setting the Default Option
1. In the measurement mode, press and hold the Cal key to enter
the setup menu.
2. If necessary, press the Cal key again to select an option.
3. Press the Enter key, the tester saves the current option and moves
to the next menu item.
4. Repeat steps above until the tester returns to the measurement
mode.
•During the setting process, if you do not need to calibrate the
temperature, press the Enter key to skip the /or /
option.
•To exit the setup menu, press the Meas key.
•The table below describes the relationship between the altitude
and barometric pressure, make sure to set a compatible
parameter before the calibration or measurement.
Option
Menu item

3 IDOscan10
Table 1. Altitude and Barometric Pressure
Altitude (m)
kPa
mmHg
0
101.3
760
100
100.1
750
200
98.8
741
300
97.6
732
400
96.4
723
500
95.2
714
600
94.0
705
700
92.8
696
800
91.7
688
900
90.5
679
1000
89.4
671
1100
88.3
662
1200
87.2
654
1300
86.1
646
1400
85.0
638
1500
84.0
630
1600
82.9
622
1700
81.9
614
1800
80.9
607
1900
79.9
599
2000
78.9
592
2100
77.9
584
2200
76.9
577
2300
76.0
570
2400
75.0
563
2500
74.1
556
2600
73.2
549
2700
72.3
542
2800
71.4
536
2900
70.5
529
3000
69.6
522
3100
68.7
515
3200
67.9
509
3300
67.0
502
3400
66.2
496
3500
65.4
490
3600
64.6
484
Dissolved Oxygen Calibration
The DOscan10 tester allows 1 or 2 points dissolved oxygen calibration.
If you have selected the single point calibration in the setup menu,
we recommend that you perform a 100% saturation calibration in the.
air-saturated water. If the 2 points calibration is selected, the zero.
oxygen solution needs to be used.
During the calibration and measurement, the temperature sensor on
electrode must be immersed in the sample solution completely, the
solution should keep 0.3 m/s of minimum flow rate to avoid oxygen
starvation at the membrane.
Single Point Calibration - 100% Saturation
Ensure that you have selected 1 point calibration in the setup menu.
1.1 Press the Cal key, the display shows 100%/CAL1.
1.2 Hold the dissolved oxygen electrode in the air at 100% relative
humidity or place the electrode into the air-saturated water for
about 10 minutes. Press the Enter key to begin the calibration.
1.3 When the reading has stabilized, the tester will show and
return to the measurement mode.
Temperature sensor

DOscan10 I4
2 Point Calibration
Ensure that you have selected 2 points calibration in the setup menu.
2.1 Repeat steps 1.1 and 1.2 above. When the first calibration point.
is completed, the display will show 0%/CAL2, the tester prompts.
you to continue with second point calibration.
2.2 Place the dissolved oxygen electrode intothe zero oxygen solution.
for about 10 minutes, press the Enter key to begin the calibration.
When the reading has stabilized, the tester will show .
Calibration is completed.
•Performing a percentage saturation calibration will calibrate the
corresponding mg/L or ppm concentration value simultaneously.
•To exit the calibration without saving calibrated values, press the
Meas key.
Temperature Calibration
1. Press and hold the Cal key to enter the setup menu.
2. Press the Enter key until the display shows /or /.
3. Press the Cal key, the tester enters the temperature calibration
mode.
4. Place the electrode into a solution with a known accurate
temperature and wait for the measurement to stabilize.
5. Press the Cal key to modify the temperature value.
6. Press the Enter key to save and press the Meas key to return
to the measurement mode.
Measurement
The DOscan10 tester can be used to measure the water, wastewater,
brine and other liquids. If your sample is seawater or water containing
large amounts of salt, make sure to set the salinity coefficient before
measurement. Some gas and steam such as chloride, sulfur dioxide,
sulfureted hydrogen and carbon dioxide can permeate the membrane
via diffusion. Their existence will influence the measurements. If the
sample contains solvent, grease, sulfide and alga, the membrane will
be damaged or eroded.

Preparation of Zero Oxygen Solution
Dissolve 500 mg of the sodium sulfate (Na2SO3) reagent and a small
amount of cobalt (II) chloride hexahydrate (CoCl2•6H2O) in the 250 ml
distilled water, mix the solution until reagent is completely dissolved.
Tester Specifications
Model
DOscan10
Dissolved Oxygen
Range
0.0 to 20.0 mg/L
Resolution
0.1 mg/L
Accuracy
± 0.5 mg/L
% Saturation
Range
0.0 to 200.0%
Resolution
0.1%
Accuracy
± 2.0%
Other Specifications
Calibration Point
1 or 2 points
Temperature Compensation
0 to 40° C (32 to 104° F), automatic
Barometric Pressure Correction
450 to 850 mmHg, manual
Salinity Correction
0 to 35 g/L, manual
Operating Temperature
0 to 50° C (32 to 122° F)
Storage Temperature
0 to 60° C (32 to 140° F)
Relative Humidity
< 80% (non-condensing)
IP Rating
IP54
Display
LCD, 21 × 21 mm (0.82 × 0.82 in.)
Power Requirements
2 × 1.5V AAA alkaline batteries
Auto-Off
8 minutes after last key pressed
Dimensions
175 (L) × 40 (Ø )mm (6.89 × 1.57 in.)
Weight
100g (3.5 oz.)
Troubleshooting
Fault
Cause and Corrective Action
Screen shows
Dissolved oxygen electrode does not connect to the
tester or measured value is out of range.
Drifting erratic
readings
Check whether the membrane cap is contaminated
or the electrolyte solution is depleted.
Screen shows
Electrode is broken.
Replace the dissolved oxygen electrode.
5 IDOscan10
1. Set the barometric pressure and salinity coefficient in the setup
menu.
2. Rinse the electrode with distilled water.
3. Place the electrode into the sample solution and stir gently. Wait
for the measurement to stabilize and record the reading.
•During the measurement, if the display shows ---- indicating the
measurement exceeds the range, remove the electrode from the
sample solution immediately.
•If the option is enabled in the setup menu, the tester will
automatically lock the measurement endpoint and show HOLD
icon. Press the Meas key to resume measuring.
Electrode Maintenance
•Rinse the electrode thoroughly with distilled water after use.
•Do not touch the membrane and always keep it is clean and wet.
•If you do not use the electrode for long periods, screw off the
membrane cap, rinse the electrode anode, cathode, membrane
cap with distilled water and blot dry. Install the electrode and
store dry.
Appendix
Optional Accessories
Order Code
Description
DO100
Dissolved oxygen electrode, range: 0 to 20 mg/L
DO-MEM
Membrane cap, 2 PCS/set
DO-ES
Electrolyte solution, 30 ml
Preparation of Air-Saturated Water
Use an air-pump to blow air into distilled water at least 1 hour, while
stirring the solution.
Cathode
Anode

The information in this document is subject to change without notice.
Copyright © Bante Instruments Inc, 2022. All rights reserved.
Disposal
This product is required to comply with the European Union’s Waste
Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC and
may not be disposed of in domestic waste. Please dispose of product
in accordance with local regulations at the collecting point specified
for electrical and electronic equipment.
Warranty
The warranty period for tester is one year from the date of shipment.
Above warranty does not cover the electrode and electrolyte solution.
Out of warranty products will be repaired on a charged basis.
The warranty on your tester shall not apply to defects resulting from:
•Improper or inadequate maintenance by customer
•Unauthorized modification or misuse
•Operation outside of the environment specifications of the
products.
For more information, please contact the supplier.
Office: 4715 Castlewood St., Sugar land, TX 77479, USA
Tel: [phone]
E-mail: [email protected]
Factory: F3, Building 2, No.2185, Laifang Rd., Shanghai 201615, China
Tel: [phone]
E-mail: [e-mail]
www.bante-china.com