Bante Instruments 810 User manual

Bante 810 Benchtop Dissolved Oxygen Meter
USER MANUAL
Bante Instruments Inc.

1IOverview
Introduction
Thank you for selecting the 810 benchtop dissolved oxygen meter. This
user manual provides a step-by-step guide to help you operate the
meter, please carefully read the following instructions before use. Any
use outside of these instructions may invalidate your warranty and
cause permanent damage to the meter.
Environmental Conditions
Before unpacking, ensure that current environmental conditions meet
the following requirements.
•Relative humidity is less than 80%
•Ambient temperature between 0° C (32° F) and 50° C (122° F)
•No potential electromagnetic interference
•No corrosive gas exists
Packing List
The following list describes all components of the meter. If any items
are missing or damaged, contact the supplier immediately.
810 meter
Electrode arm
9V DC power adapter
DO100 dissolved oxygen electrode
Membrane cap
Electrolyte solution
Meter Overview
1 Sensor connections
2 Base plate of electrode arm
3 Display
4 Membrane keypad
Connectors
1 Socket for dissolved oxygen electrode (6-pin mini DIN)
2 Socket for power adapter
Display
Icon
Description
Indicates that the meter is in the measurement mode
Indicates that the meter is in the calibration mode
Indicates that the meter is in the setup mode
Indicates that the measurement is locked
Indicates that the automatic temperature compensation
is enabled
Keypad

Overview I2
Key
Function
•Switch the meter on or off
•Lock or unlock the measurement
•Exit the calibration, settings and return to the
measurement mode
Toggle between the % saturation and mg/L
(ppm) mode
•Start calibration
•Press and hold the key to enter the setup menu
Set the temperature
Increase value or scroll up through a list of
options
Decrease value or scroll down through a list of
options
Confirm the calibration or displayed option
Installing the Electrode Holder
Take out the electrode arm from the accessory box. The base plate of
electrode arm has a circular hole, the electrode arm has a connecting
rod. Insert the connecting rod into the circular hole and swivel the
electrode arm 90 degrees. The electrode holder is now ready to swing
into desired position.
Adjusting the Electrode Arm
After installation, if the electrode arm automatically rises or falls, you
are able to adjust the screw until arm locate at any position.
1. Remove the plastic cover from the right side of the electrode
arm.
2. Use the screwdriver to tighten the screw moderately.
3. Insert the plastic cover to previous position.
Prior to Use
Filling the Electrolyte Solution
1.1 Take out the dissolved oxygen electrode from the packaging.
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.
Connecting the Dissolved Oxygen Electrode
2.1 Follow the steps below to place electrode into the left or right
side of the electrode arm.
Remove air bubbles

3ISetup
2.2 Insert 6-pin connector into the connector socket labeled DO.
Ensure the connector is fully seated.
2.3 After the connection is completed, DO NOT pull on the cable.
Always make sure that the connector is clean and dry.
Connecting the Power Adapter
3.1 Insert the connector of power adapter to the power socket.
3.2 Plug the 9V DC power adapter into the wall outlet.
Switching the Meter On and Off
•Press the Meas key for about 3 seconds and release to switch
on the meter.
•Press and hold the Meas key to switch off the meter.
Polarizing the Electrode
Switch on the meter and wait 10 minutes for the electrode to polarize.
Meter Setup
The 810 meter contains an integrated setup menu for customizing the
displayed option to meet measurement requirements. The following
table describes the functions of each menu item.
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 4).
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
Auto-Hold
If enabled, the meter will automatically sense and
lock the measurement endpoint.
Enable
Disable (default)
Auto-Power Off
If enabled, the meter will automatically switch off
if no key is pressed within 8 minutes.
Enable
Disable (default)
Factory Reset
Reset the meter to factory default settings. Note,
the meter must be recalibrated.
Enable
Disable (default)
1
2
3

Calibration I4
Setting the Default Option
1. In the measurement mode, press and hold the key to enter the
setup menu.
2. Press the / key to select an option, press the Enter key to
confirm and switch to the next menu item.
3. Repeat the steps above until the meter returns to the
measurement mode.
To exit the setup menu without saving changes, press the Meas key.
The following table describes the relationship between the altitude
and barometric pressure, make sure to set a compatible parameter
before the calibration and measurement.
Altitude (m)
kPa
mmHg
Altitude (m)
kPa
mmHg
0
101.3
760
1600
82.9
622
100
100.1
750
1700
81.9
614
200
98.8
741
1800
80.9
607
300
97.6
732
1900
79.9
599
400
96.4
723
2000
78.9
592
500
95.2
714
2100
77.9
584
600
94.0
705
2200
76.9
577
700
92.8
696
2300
76.0
570
800
91.7
688
2400
75.0
563
900
90.5
679
2500
74.1
556
1000
89.4
671
2600
73.2
549
1100
88.3
662
2700
72.3
542
1200
87.2
654
2800
71.4
536
1300
86.1
646
2900
70.5
529
1400
85.0
638
3000
69.6
522
1500
84.0
630
3100
68.7
515
Dissolved Oxygen Calibration
The 810 meter 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.
Note: 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 CAL1/100%
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 meter will show and
return to the measurement mode.
Option
Menu item
Temperature sensor

5IMeasurement
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 CAL2/0%, the meter 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.
When the reading has stabilized, the meter 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. Place the dissolved oxygen electrode into a solution with a known
accurate temperature.
2. Press and hold the °Ckey to enter the temperature setting.
3. Press the / key to modify the temperature value.
4. Press the Enter key to save.
Measurement
The 810 meter 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. Set the barometric pressure and salinity coefficient in the setup
menu.
2. Rinse the electrode with distilled water, place the electrode into
the sample solution and stir gently.
3. If the Auto-Hold option in the setup menu is enabled, the meter
will automatically sense a stable reading and lock measurement,
the icon appears on the display. Press the Meas key to resume
measuring.
If the option is disabled, the meter will continuously measure and
update the readings.
4. Wait for the measurement to stabilize and record the reading.
5. When all of the samples have been measured, rinse the electrode
with distilled water.
If the meter shows ---- indicating the measurement exceeds the range,
remove the electrode from the sample solution immediately.

Appendix I6
Electrode Maintenance
•Rinse the dissolved oxygen 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.
Cathode Anode
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, 480 ml
DCPA-9V
9V DC power adapter, european standard plug
Preparation of Air-Saturated Water
Use an air-pump to blow air into distilled water at least 1 hour, while
stirring the solution.
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.
Meter Specifications
Model
Bante 810
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)
Display
LCD, 135 × 75 mm (5.3 × 2.9 in.)
Power Requirements
9V/400mA DC power adapter
Auto-Off
3 hours after last key pressed
Dimensions
210 (L) × 205 (W) × 75 (H) mm,
(8.2 × 8.0 × 2.9 in.)
Weight
1.5 kg (3.3 lb)
Troubleshooting
Fault
Cause and Corrective Action
Dissolved oxygen electrode does not connect to the
meter or measured value is out of range.
Drifting erratic
readings
Check whether the membrane cap is contaminated
or the electrolyte solution is depleted.
Electrode is broken.
Replace the dissolved oxygen electrode.

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 meter 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 meter 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