Bante Instruments D0scan10 User manual

DOscan10 Pocket Dissolved Oxygen Tester
Instruction Manual
Bante Instruments Inc.

DOscan10
Overview
Thank you for selecting the DOscan10 dissolved oxygen tester. This manual provides a step-by-step guide to help you operate the instrument,
please carefully read the following instructions before use.
Installing the Batteries
1. Twist the connector collar counter clockwise, pull the 6-pin connector away from the tester.
2. Insert the two AAA batteries into the battery compartment, note polarity.
3. Push the 6-pin connector into the tester and twist the connector collar clockwise until tight.
Keypad
Key
Function
• Switch the tester on or off
• Lock the reading, press the key again to resume measurement
• Exit the calibration, setting and return to the measurement mode
• Start calibration
• Press and hold the key to enter the setup menu
• Select an option
• Confirm the calibration, setting 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
Take out the dissolved oxygen electrode from carrying case. Insert the 6-pin connector into the connector socket on tester, make sure that the
connector is fully seated.

DOscan10
Filling the Electrolyte Solution
1. Unscrew the membrane cap from the buttom of the electrode, rinse the inside and outside with deionized water and blot dry.
2. Fill the membrane cap halfway with electrolyte solution.
3. Screw the membrane cap back onto the electrode. Some electrolyte solution will overflow during this process.
4. Check the electrode, make sure that no air bubbles are trapped in the electrolyte solution and the membrane is not creased or damaged.
Switching the Tester On and Off
•Press and hold the Meas key for about 5 seconds to switch on the tester.
• Press and hold the Meas key to switch off the tester.
Polarizing the Electrode
Connect the electrode to tester, switch on the tester and wait 10 minutes for the electrode to polarize.
Setup Menu
The DOscan10 tester contains 8 menu items in the setup menu, the following table describes the functions of each option.
Menu
Description
Options
Description
Default
Set the salinity compensation coefficient of sample
Range: 0 to 35 g/L
0g/L
Set the barometric pressure coefficient according to the
local altitude
Range: 450 to 850 mmHg
760 mmHg
Set the number of calibration points
1 or 2 points
1 point
Set the measurement unit
mg/L
Milligrams per liter
mg/L
ppm
Parts per million
%
Percentage saturation
Degrees Celsius
°C
Degrees Fahrenheit
Calibrate the temperature
Reading ± 10° C/° F
---
When the option is enabled, the tester will automatically
sense a stable reading and lock the measurement
Enable
Disable
Disable
When the option is enabled, the tester will automatically
switch off if no key is pressed within 8 minutes
Enable
Disable
Disable
Reset the tester to factory default settings
Enable
Disable
Disable
no air bubbles

DOscan10
Setting the Default Option
1. In the measurement mode, press and hold the Cal key for 5 seconds 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 the steps above until the tester returns to the measurement mode.
•During the setting process, press the Meas key, the tester will exit the setup menu and return to the measurement mode.
•If you do not need to calibrate the temperature, press the Enter key to skip the /or /option.
•The option is used to restore the tester back to the factory default settings. If enabled, all of the calibration data and user-specific
settings will be deleted or reset, the tester must be recalibrated.
•The following table describes the relationship between the altitude and barometric pressure. Make sure to set the compatible parameter
before the calibration and measurement.
Altitude (m)
kPa
mmHg
Altitude (m)
kPa
mmHg
0
101.3
760
1800
80.9
607
100
100.1
750
1900
79.9
599
200
98.8
741
2000
78.9
592
300
97.6
732
2100
77.9
584
400
96.4
723
2200
76.9
577
500
95.2
714
2300
76.0
570
600
94.0
705
2400
75.0
563
700
92.8
696
2500
74.1
556
800
91.7
688
2600
73.2
549
900
90.5
679
2700
72.3
542
1000
89.4
671
2800
71.4
536
1100
88.3
662
2900
70.5
529
1200
87.2
654
3000
69.6
522
1300
86.1
646
3100
68.7
515
1400
85.0
638
3200
67.9
509
1500
84.0
630
3300
67.0
502
1600
82.9
622
3400
66.2
496
1700
81.9
614
3500
65.4
490
option
menu

DOscan10
Dissolved Oxygen Calibration
The DOscan10 tester allows 1 or 2 points 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 solution completely, the solution keeps 0.3
m/s of minimum flow rate to avoid oxygen starvation at the membrane.
Single Point Calibration - 100% Saturation
Make sure 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 "End" and return to the measurement mode.
2 Point Calibration
Make sure that you have selected 2 points calibration in the setup menu.
2.1 Repeat steps 1.1 through 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 into the zero oxygen solution for about 10 minutes, press the Enter key to begin the calibration.
2.3 When the reading has stabilized, the tester will show "End". Calibration is completed.
temperature sensor
•Performing a percentage saturation calibration will simultaneously calibrate
the corresponding mg/L (or ppm) concentration value.
•To exit the calibration without saving calibrated values, press the Meas key.

DOscan10
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 measurement is stable.
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.
1. Rinse the electrode with deionized water.
2. Place the electrode into the sample solution and stir gently. Wait for the measurement to stabilize and record the reading.
•If the display shows "----" indicating the measurement exceeds the range, remove the electrode from the sample immediately.
•If the option is enabled in the setup menu, the tester will automatically lock a measurement endpoint and show icon.
Press the Meas key to resume measuring.
Electrode Maintenance
•Rinse the electrode thoroughly with deionized 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 and rinse the electrode anode/cathode and membrane with
deionized water and blot dry. Install the electrode and store dry.
cathode
anode
DO membrane

DOscan10
Appendix
Preparation of Zero Oxygen Solution
Dissolve 500 mg of sodium sulfate (Na2SO3) reagent and a small amount of cobalt (II) chloride hexahydrate (CoCl2•6H2O) in the 250 ml deionized
water, mix the solution until reagent is completely dissolved.
Preparation of Air-Saturated Water
Use an air-pump to blow air into deionized water at least 1 hour, while stirring the solution.
Optional Accessories
Order Code
Description
DO100
Polarographic dissolved oxygen electrode, 12 mm (0.47") diameter
DO-MEM
Membrane cap, 2 PCS/set
DO-ES
Electrolyte solution, 480 ml
Specifications
Dissolved Oxygen
Model
DOscan10
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
-5 to 60° C (23 to 140° F)
Relative Humidity
< 80% (non-condensing)
IP Rating
IP54
Display
Dual-line LCD, 21 ×21 mm (0.82 ×0.82")
Power Requirements
2×1.5V AAA alkaline batteries
Auto-Off
8 minutes after last key pressed
Dimensions
175 (L) ×40 (Dia.) mm (6.89 ×1.57")
Weight
100 g (3.5 oz.)

DOscan10
Disposal
This tester 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 this 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 membrane cap. 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: A10, No.2066, Laifang Rd., Shanghai 201615, China
Tel: [phone]
E-mail: [email protected]
www.bante-china.com