BANTE Bante320 User manual

Bante320 Portable pH/ORP/Ion Meter
Instruction Manual
BANTE INSTRUMENTS LIMITED
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BANTE320 PORTABLE PH/ION METER
1
Introduction
Thank you for selecting the Bante320 portable pH/ORP/Ion meter. This manual provides a step-by-step guide to help you operate the meter,
please carefully read the following instructions before use.
Unpacking the Meter
The following list describes the standard accessories of the meter. After the unpacking, please check all accessories are complete. If any
are damaged or missing, please contact nearest distributor.
ACCESSORIES:
■pH Electrode, Temperature Probe
■pH Buffer Solutions (pH4.01, 7.00, 10.01)
■Battery
Display
Bante320 portable meter is equipped with a clear and bright LCD display that used to show measured values, mode indicators and message
indicators.
INDEX:
Measurement mode indicator:
Indicates meter is in the measurement mode
Low Battery Alarm:
When battery is depleted, the indicator will disappear
Calibration mode indicator:
Indicates meter is in the calibration mode
Stable indicator:
Indicates the measured value has stabilized
Setup mode indicator:
Indicates meter is in SETUP mode
Hold indicator:
Indicates the displayed value has been frozen
Memory mode indicator:
Indicates data is stored into memory
Calibration Due Reminder:
Prompts user to calibrate the meter regularly
Electrode slope indicator:
Indicates the average slope of the pH electrode
Automatic Temperature Compensation:
Indicates meter is in the temperature compensation mode

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Keypad
The meter has a succinct membrane keypad, names and symbols describe the each function key controls.
MEAS|
■Power the meter ON/OFF.
■Freezes the measured value on the display, press the key again to resume measuring.
■In the calibration or temperature setting mode, exits current mode and returns to measurement.
MODE|oC
■Toggles between pH, mV, ORP and ion concentration measurement modes.
■Press and hold the key to set the temperature.
CAL|
■Press the key to enter the calibration mode.
■Press and hold the key to enter the setup menu.
MI|
■Press the key to store current measured value.
■Press key in setup mode to scroll up through menu.
■Press key in temperature setting mode to increase the setting value.
MR|
■Press the key to view calibration report or stored data.
■Press key in setup mode to scroll down through menu.
■Press key in temperature setting mode to decrease the setting value.
ENTER
■Confirms the calibration, setting value or displayed option.
■Press and hold the key to turn On/Off the backlight.
Connectors
Bante320 portable meter provides 2 connectors for connecting the various types of sensors.
2
1

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INDEX:
No.
CONNECTOR
FUNCTION
1
BNC Connector
For connecting the pH, ORP or Ion Selective Electrodes
2
Phone Jack
For connecting the temperature probe
Inserting the Batteries
Before using the meter, insert three 1.5V “AA” alkaline batteries into battery compartment, follow the procedure outlined below.
1. Remove the battery cover from meter’s backside.
2. Insert the batteries into the battery compartment, note polarity.
3. Replace the battery cover into its original position. Installation is completed.
When batteries are depleted, the meter allows you to use the USB cable connected to computer as a temporarily power supply.
Connecting the Electrode
Take out the pH, ORP or Ion Selective Electrode from the carrying case. Insert BNC connector into corresponding connector socket. Rotate
and push the connector clockwise until it locks. After connection is completed, DO NOT pull on the sensor cord. Always make sure that the
connector is clean and dry.

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Prior to Use
Remove the protective cap from the bottom of the electrode.
■For the pH or ORP Electrode:
If the glass sensitive membrane on the electrode dries out, soak the electrode in 3M KCL solution or tap water for at least 15 minutes.
DO NOT use distilled or deionized water, it will shorten the life of sensor.
■For the Ion Selective Electrodes:
Soak the electrode in the diluted standard solution (e.g. 10ppm) for at least 15 minutes.
Preparation of pH Standard Buffer Solutions
Bante320 portable meter is packaged with three pH buffer packets required for calibration.
Open the pH7.00 buffer packet, place the powder into a 250ml volumetric flask. Pour distilled water 250ml to scale line, mix the solution
until reagent is completely dissolved.
Preparation of pH4.01 and 10.01 standard buffer solutions are the same as above. Prepared standard buffer solutions should be stored in
hermetically sealed glass containers.
Power On/Off
■Press MEAS key to turn on the meter, the display shows measured values, mode indicators and help messages.
■Press and hold the MEAS key for 3 seconds, the meter will turn off.
■If you do not press any key within the specified time period, the meter will turn off automatically.
To disable the auto-off function, please read the SETUP MENU section.

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Setup Menu
Bante320 portable meter contains an integrated setup menu that allows you to customize each displayed option to meet measurement
requirements.
pH MODE:
PARAMETER
DESCRIPTION
OPTIONS
DESCRIPTION
DEFAULT
pH Buffers:
Select your desired pH buffers for calibration
and auto-recognition
USA Standard
■
NIST Standard
DIN Standard
User-Defined Buffer
Calibration Points:
Select the number of calibration points
1 point
2 points
3 points
■
4 points
5 points
Resolution:
Sets the resolution for pH measurement
0.001pH
■
0.01pH
0.1pH
Measurement Unit:
Sets the default temperature unit
Degrees Celsius
■
Degrees Fahrenheit
ORP MODE:
PARAMETER
DESCRIPTION
OPTIONS
DESCRIPTION
DEFAULT
Resolution:
Sets the resolution for ORP measurement
0.1mV
■
1mV
ION MODE:
PARAMETER
DESCRIPTION
OPTIONS
DESCRIPTION
DEFAULT
Measurement Unit:
Sets the default ion concentration and temperature units
ppm
Parts per million
■
mg/L
Milligrams per liter
mol/L
Moles per liter
Degrees Celsius
■
Degrees Fahrenheit

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Calibration Points:
Select the number of calibration points
2 points
■
3 points
4 points
5 points
Ion Valence:
Select the ion valence of the sample solution
Monovalent
■
Divalent
GENERAL OPTIONS:
PARAMETER
DESCRIPTION
OPTIONS
DESCRIPTION
DEFAULT
Stable Criteria:
Sets the stability standard for measurement or
calibration. When the “LO” option is enabled, measuring
value will stabilize quickly. When the “HI” option is
enabled, measuring value will stabilize slowly.
Low
■
High
Auto-Hold:
When the auto-hold function is enabled, the meter will
automatically sense a stable endpoint reading and freeze
it.
Enable
Disable
■
Auto-Power Off:
When the auto-off is enabled, if you do not press any
key within a specified time period, the meter will
automatically turn off to conserve energy.
10 minutes
20 minutes
30 minutes
Disable
■
Calibration Due:
When calibration due reminder is enabled, if you do not
recalibrate meter within a specified time period, the
meter will automatically show indicator.
…
1 to 31 days
Disable
■
Date and Time:
Sets the date and time of the meter.
---
---
Clear stored data:
Clear all stored measured values.
Enable
Disable
■
Reset:
Reset function allows user to restore the meter back to
factory default parameters. When this function is
enabled, all calibration values and selected system
parameters will be lost or reset.
Enable
Disable
■

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Setting the Default Parameters
1. If necessary, press MODE key until the display shows corresponding mode indicator (e.g. pH mode).
2. Press and hold the key for 3 seconds, the meter enters setup menu, the display shows selectable parameter and page number.
3. Press or key to scroll through menu, select the parameter you want to set (Refer to Setup Menu section).
4. Press ENTER key to confirm, the display shows an option in the submenu.
5. Press or key to select an option.
6. Press ENTER key to confirm, the meter returns to measurement mode. Setting is completed.
You can easily set each default parameter as per the above method.
Enter
………Parameter
………Page number
………Option
………Parameter

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Setting the Date and Time
1. Press and hold the key for 3 seconds to enter the setup menu.
2. Press or key until the meter shows “Date”.
3. Press ENTER key to confirm, the display shows current year.
4. Press or key to set the year.
5. Press ENTER key to confirm, the meter shows current date and time.
6. Press or key to set the date and time.
7. Press ENTER key to confirm, the meter returns to measurement mode. Setting is completed.
………Day
Month…………..
………Minutes
Hour…………..
…..…Year

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Temperature Compensation
In order to get accurate measuring results, you need to enable the manual or automatic temperature compensation before measurement
or calibration.
AUTOMATIC TEMPERATURE COMPENSATION:
■Insert the connector of temperature probe into the meter’s phone jack.
■The “ATC” indicator will show on the display, the meter is now switched to automatic temperature compensation mode.
MANUAL TEMPERATURE COMPENSATION:
1. DO NOT connect the temperature probe to meter.
2. Press and hold the oC key for 3 seconds to enter temperature setting mode.
3. Press or key to set the temperature value of sample.
4. Press ENTER key to confirm, the meter returns to measurement mode. Setting is completed.
In the temperature setting mode, press or key once, the setting value will increase or decrease by 0.1. Press and hold the or 
key, the setting value will increase or decrease by 1.

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pH Calibration
Bante320 portable meter allows up to 5 points calibration in the pH mode. We recommend that you perform at least 2 points calibration
for high accuracy measurement. The meter will automatically recognize and calibrate to following standard buffer values.
■USA Standard Options: pH1.68, 4.01, 7.00, 10.01, 12.45
■NIST Standard Options: pH1.68, 4.01, 6.86, 9.18, 12.45
■DIN Standard Options: pH1.09, 4.65, 6.79, 9.23, 12.75
If you selected the user-defined option in the setup menu, the meter will allow only 2 points calibration. Single point calibration should only
be carried out with pH7.00, 6.86 or 6.79, otherwise calibration will not be accepted.
Make sure to calibrate the meter when attaching a new electrode or during first use. DO NOT reuse calibration solution after calibration,
contaminants in solution will affect the calibration and eventually the accuracy of the measurement.
SINGLE POINT CALIBRATION:
1.1 Make sure that you have selected 1 point calibration in the setup menu.
1.2 Rinse the pH electrode with distilled water.
1.3 Press CAL key, the meter shows “pH7.00/CAL” (or “6.86/CAL”, “6.79/CAL”).
1.4 Dip the pH electrode into the pH7.00 (or 6.86, or 6.79) buffer solution, the end of the electrode must be completely immersed into
the calibration solution. Stir the electrode gently to create a homogenous solution.
1.5 Press ENTER key, “Calibration” indicator begins flashing. Wait for the measured value to stabilize, the display shows “END”. The
meter returns to measurement mode automatically. Calibration is completed.

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MULTI-POINT CALIBRATION:
2.1 Make sure that you have selected 2 to 5 points calibration in the setup menu.
2.2 Repeat steps 1.2 to 1.5 above. When the first calibration point is completed, the display will show “CAL2”. The meter prompts you
to continue with second point calibration.
2.3 Rinse the pH electrode with distilled water. Dip the electrode into the next standard buffer solution (e.g. pH4.01). The meter
automatically sense the current calibration solution and begin calibrating. “Calibration” indicator begins flashing.
2.5 Wait for the measured value to stabilize, the display shows “CAL3”. The meter prompts you to continue with third point calibration.
2.6 Repeat steps 2.3 to 2.4 above until the display shows “END”, the meter automatically returns to measurement mode. Calibration is
completed.

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pH CALIBRATION WITH THE USER-DEFINED BUFFERS:
3.1 Make sure that you have selected “USER” option in the setup menu.
3.2 Rinse the pH electrode with distilled water. Dip the electrode into the custom buffer solution. Stir the sensor gently. The meter
shows the current measured value.
3.3 Press or key to increase or decrease displayed value, press ENTER key to confirm. “Calibration” indicator begins flashing.
3.4 Wait for the measured value to stabilize, the display shows “CAL2”. The meter prompts you to continue with second point
calibration.
3.5 Rinse the pH electrode with distilled water. Dip the electrode into the next custom buffer solution.
3.6 Press or key to increase or decrease displayed value, press ENTER key to confirm. “Calibration” indicator begins flashing.
3.7 Wait for the measured value to stabilize, the display shows “END”. The meter automatically returns to measurement mode.
Calibration is completed.
■During the calibration process, if you want to exit the calibration mode, press MEAS key, the meter will return to measurement mode
immediately.
■Electrode indicator will show average slope of the pH electrode after calibration. When the electrode or calibration result does not meet
measurement requirements, the indicator will disappear on the display.

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pH Calibration Report
This program lets you check the pH electrode parameter for diagnostic purposes.
1. Press MR key in the pH measurement mode, the meter shows “LOC”.
2. Press or key until the display shows “ELE” (Electrode Diagnosis).
3. Press ENTER key to confirm, the meter shows the last calibration date (Format: mm-dd).
4. Press key, the meter shows “OFS” (Zero-point offset potential).
5. Press key again, the meter shows the electrode slope of each calibration point.
6. After the browsing, press MEAS key, the meter returns to measurement mode.
MR

Enter
MR

mV
MR

%
….....Slope
….....Calibration Points

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ORP Calibration
Bante320 portable meter allows 1 point calibration in the relative mV mode, but calibration is not necessary unless exact readout
agreement with a work standard and at a specific ORP value is needed.
1. Press MODE key until the meter shows indicator.
2. Rinse the ORP electrode with distilled water. Dip the electrode into the calibration solution. Stir the sensor gently.
3. Press CAL key, the meter shows current measured value.
4. Press or key to set the displayed value, press ENTER key to confirm. “Calibration” indicator begins flashing.
6. Wait for the measured value to stabilize, the display shows “End”. The meter returns measurement mode. Calibration is completed.
R.mV
R.mV
R.mV

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ORP Calibration Report
This program lets you check the offset potential of the ORP electrode.
1. Press MR key in the ORP measurement mode, the meter shows “LOC”.
2. Press or key until the display shows “ELE” (Electrode Diagnosis).
3. Press ENTER key to confirm, the meter shows the last calibration date (Format: mm-dd).
4. Press key, the meter shows “OFS” (Offset Potential).
5. After the browsing, press MEAS key, the meter returns to measurement mode.
MR

mV

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Ion Calibration
Bante320 portable meter allows 2 to 5 points calibration in the ion concentration mode. Available calibration points include 0.001, 0.01,
0.1, 1, 10, 100, 1000 and 10000ppm, mg/L, mol/L or mmol/L. To obtain accurate measurement results, we recommend that you perform
ion calibration and measurement at same temperature.
1. Press MODE key until the meter shows indicator.
2. If necessary, select the concentration unit and ion valence (Monovalent or Divalent) in the setup menu.
When default concentration unit has changed, the meter will show indicator “CAL” and flashing uninterruptedly. Press CAL key, the meter
enters the calibration mode.
3. Press CAL key, the meter shows 0.001ppm (or mg/L, mol/L, mmol/L).

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4. Press or key to select the desired calibration point (e.g. 0.01ppm).
5. Dip the Ion Selective Electrode into corresponding calibration solution. Stir the sensor gently to create a homogenous solution.
6. Press ENTER key to confirm, “Calibration” indicator begins flashing. Wait for the measured value to stabilize, the display shows
“0.1/CAL2”. The meter prompts you to continue with second point calibration.
7. Dip the Ion Selective Electrode into the corresponding calibration solution. Stir the sensor gently.
8. Press ENTER key, “Calibration” indicator begins flashing. Wait for the measured value to stabilize, the display shows “1/CAL3”. The meter
prompts you to continue with third point calibration.
9. Repeat steps 7 to 8 above until the display shows “END”, the meter returns to measurement mode. Calibration is completed.
MR

Enter
Enter

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Ion Calibration Report
This program lets you check the slope of the Ion Selective Electrode.
1. Press MR key in the ion measurement mode, the meter shows “LOC”.
2. Press or key until the display shows “ELE” (Electrode Diagnosis).
3. Press ENTER key to confirm, the meter shows the last calibration date (Format: mm-dd).
4. Press key, the meter shows calibration point and its slope.
5. After the browsing, press MEAS key, the meter returns to measurement mode.
MR

Enter
MR

…….Calibration Point
…….Slope

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Temperature Calibration
During the measurement, when automatic temperature compensation is enabled, if the temperature reading displayed differs from that of
an accurate thermometer, you need to calibrate the meter.
1. Press and hold the oC key for 3 seconds to enter temperature calibration mode, the display shows current temperature reading.
2. Press or key to set the temperature value.
3. Press ENTER key to confirm. Calibration is completed.
pH Measurement
1. Press MODE key until the meter shows indicator.
2. Rinse the pH electrode thoroughly with distilled or de-ionised water.
3. Dip the electrode into the sample solution, stir the sensor gently.
4. Wait for the reading to stabilize, record the measured value on the display.
ORP Measurement
Bante320 portable meter provides two ORP measurement modes.
ABSOLUTE MILLIVOLT MODE:
Press MODE key until the display shows measurement unit “mV”, the meter is now enters absolute mV measurement mode.
mV