Bante Instruments Bante932 User manual

Bante932 Benchtop Water Hardness Meter
Instruction Manual
BANTE INSTRUMENTS CO., LTD

Bante932 Benchtop Water Hardness Meter
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Introduction
Thank you for selecting the Bante932 benchtop water hardness meter. This manual provides a step-by-step guide to help you operate the meter, please
carefully read the following instructions before use.
Unpacking
Before unpacking, ensure that the current work environment meets following conditions.
•Relative humidity is less than 80%.
•Ambient temperature is greater than 0°Cand less than 60°C.
•No potential electromagnetic interference.
The following list describes the standard components of the meter. After the unpacking, please check all components are complete. If any are damaged or
missing, please contact nearest distributor.
Bante932 Water Hardness Meter
Electrode Arm
WH-UK Water Hardness Electrode
TP-10K Temperature Probe
USB Cable
DC5V Power Adapter

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Display
The Bante932 water hardness meter is equipped with an easy-read LCD display that used to show the measured values and mode icons. The following table
describes the function of each icon.
INDEX:
Measurement mode icon:
Indicates the meter is in the measurement mode.
Stable icon:
Indicates the measuring value has stabilized.
Calibration mode icon:
Indicates the meter is in the calibration mode.
Hold icon:
Indicates the measuring value has been locked.
Setup mode icon:
Indicates the meter is in the setting mode.
Calibration Due Alarm:
Prompts the user to calibrate the meter.
Memory icon:
Indicates the data is stored into memory.
Automatic Temperature Compensation:
Indicates the temperature compensation is enabled.

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Keypad
KEY
FUNCTION
•Switches the meter ON/OFF.
•Locks the measured value, press the key again to resume measuring.
•Exits the calibration or setting and returns to measurement.
•Toggles between available measurement modes (Refer to page 6 “Switching the Measurement Mode”).
•Sets the temperature (Press and hold the key for 3 seconds).
•Starts calibration.
•Enters the setup menu (Press and hold the key for 3 seconds).
•Stores current reading to memory.
•Increase value or scroll up through the menu item.
•Views the calibration report or data logs.
•Decrease value or scroll down through the menu item.
•Confirms the calibration, settings or displayed options.
•Turn on/off the backlight (Press and hold the key for 3 seconds).
Connectors
INDEX:
NO.
CONNECTOR
DESCRIPTION
1
pH/ISE
Used for connecting the water hardness electrode
2
ATC
Used for connecting the temperature probe
3
REF
Used for connecting the reference electrode
4
USB
Used for connecting the USB cable and DC5V power adapter

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Installing the Electrode Holder
Take out the electrode arm from the packaging. The base plate of the electrode holder has a circular hole, the electrode arm has a connecting rod. Insert the
connecting rod into the circular hole and swivel the electrode arm 90o. Electrode holder is now ready to swing into desired position.
Adjustment of electrode arm
After installation, if the electrode arm automatically rises or falls, you need to adjust the screws until arm locate at any position.
1. Remove the plastic cover from the electrode arm.
2. Use the screwdriver to tighten the screw moderately.
3. Insert the plastic cover to previous position. Installation is completed.
Connecting the Electrode
1. Take out the water hardness electrode from the packaging. Place the electrode into left or right side of the electrode arm.
1. Insert the electrode
2. Hook up the cable
3. Hook up the cable

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2. Insert the BNC connector into the connector socket labeled pH/ISE. Rotate and push the connector clockwise until it locks. After the connection is
completed, DO NOT pull on the cable. Always make sure that the connector is clean and dry.
Connecting the Temperature Probe
1. Place the temperature probe into the circular hole of the electrode arm.
2. Insert the phone plug to the connector socket labeled ATC.
Connecting the Power Adapter
1. Connect the USB cable to power adapter.
2. Insert the other side of cable into the power socket. The meter is now ready for use.

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Preparing the Standard Solution (0.1mol/L)
•To prepare this solution, half fill a 1 liter volumetric flask with distilled water and add 14.7 grams of reagent-grade calcium chloride (CaCl2•2H2O).
Swirl the flask gently to dissolve the solid and fill to the mark with distilled water. Cap the flask and upend several times to mix the solution.
•Diluting the above stock solution to desired standard concentrations (at least 2).
Prior to Use
•Remove the protective cap from the bottom of the water hardness electrode.
•Soak the electrode in the 0.01mol/L standard solution for at least 30 minutes.
Switching the Meter On and Off
•Press the Meas key to switch on the meter, the display shows the measured value.
•Press and hold the Meas key for 5 seconds, the meter will switch off.
Switching the Measurement Mode
The Bante932 water hardness meter contains the 8 measurment modes. Press the Mode key, the display will show corresponding mode icon.
LCD DISPLAY
DESCRIPTION
MEASUREMENT UNIT
Ion concentration
mmol/L
CaCO3
mg/L
CaO
mg/L
Boiler
mmol/L
Ca2+
mg/L
French degree
ofH
German degree
odH
English degress
oe

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Setup Menu
The meter contains an integrated setup menu that is used to customize the displayed option to meet measurement requirements. The following table
describes the functions of the menu items.
MENU
DESCRIPTION
OPTIONS
DESCRIPTION
DEFAULT
Calibration Points:
Set the number of calibration points.
2 points
2 points
3 points
4 points
5 points
Stability Criteria:
When the LO option is enabled, the Stable icon will
quickly appear on the display.
When the HI option is enabled, the icon will take
longer to appear, but guarantees high accuracy of
the measurement.
Low
Low
High
Auto-Hold:
When the option is enabled, the meter will
automatically sense a stable reading and lock the
measurements.
Enable
Disable
Disable
Auto-Power Off:
When the option is enabled, the meter will
automatically turn off if no key is pressed within a
specified time period.
10 minutes
Disable
20 minutes
30 minutes
Disable
Calibration Due:
When the option is enabled, if the meter does not
calibrated within a specified time period, the meter
will automatically show the icon.
…
1 to 31 days
Disable
Disable
Date and Time:
Set the current date and time.
---
Year-month-day, hour-minutes
Clear Stored Data:
Delete all stored readings in the memory.
Enable
Disable
Disable
Factory Reset:
If enabled, all of the calibration data and selected
parameters will back to factory default settings,
the meter must be recalibrated.
Enable
Disable
Disable

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Setting the default option
1.1 Press the Mode key until the display shows (Ion concentration measurement mode).
1.2 Press and hold the key for 3 seconds to enter the setup menu and the or key to select the menu item (e.g., CAL/P-01).
1.3 Press the Enter key, the display shows an option.
1.4 Press the or key to select the desired option.
1.5 Press the Enter key to confirm, the meter returns to the measurement mode. Setting is completed.
If you want to exit the setting, press the Meas key.
Setting the date and time
2.1 Press and hold the key for 3 seconds to enter the setup menu and the or key until the display shows DATE/P-06.
2.2 Press the Enter key, the meter shows current year (e.g., 2018).
2.3 Press the or key to set year and the Enter key to confirm, the display shows current date and time (Format: month-day, hour-minutes).
2.4 Press the or key to set the date and time, press the Enter key to confirm until the meter returns to the measurement mode. Setting is
completed.
Menu
Page
Option
Menu

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Temperature Compensation
In order to get accurate measuring results, we recommend that the standards and samples should be measured at the same temperature. If you need to
enable the temperature compensation, follow the steps below.
Automatic Temperature Compensation
Connect the temperature probe to the meter (Refer to page 5 “Connecting the Temperature Probe”). The ATC icon immediately appears on the display, the
meter is now switched to the automatic temperature compensation mode.
Manual Temperature Compensation
If the meter does not detect a temperature probe, the °C icon will show on the display indicating that the meter is switched to the manual temperature
compensation mode. To set the temperature value of sample, follow the steps below.
1. Press and hold the oCkey for 3 seconds to enter the temperature setting mode.
2. Press the or key to modify the temperature value.
3. Press the Enter key to confirm.
Press the 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.
ATC
°C

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Ion Concentration Calibration
The Bante932 water hardness meter is capable of 2 to 5 points calibration with standard solutions, available calibration points include the following options.
MEASUREMENT UNITS
CALIBRATION POINTS
mol/L
0.001, 0.01, 0.1
mmol/L
0.001, 0.01, 0.1
In order to get accurate measuring results, we recommend that adding the ionic strength adjuster to all standards and samples. A typical addition would be
2ml ISA to 100ml of standards and samples. If the meter does not calibrated or calibration is not successfully, the display will always show 0.000.
During the calibration, ensure that the selected calibration points cover the anticipated range of the samples.
Calibrating the meter
1.1 Press the Mode key until the display shows , the meter enters the ion concentration
measurement mode.
1.2 Press the Cal key, the meter shows 0.001mmol/L.
1.3 If necessary, press the or key to select the desired calibration point (e.g., 0.01mmol/L).
1.4 Rinse the water hardness electrode with distilled water, then rinse with a small amount of
standard solution. Place the electrode into corresponding standard solution. Stir the electrode
gently to create a homogeneous solution. Press the Enter key, the Calibration icon begins
flashing.

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1.5 Wait for the reading to stabilize, the display shows 0.1mmol/L/CAL2. The meter prompts you
to continue with second point calibration.
1.6 Rinse the water hardness electrode with distilled water, then rinse with a small amount of
standard solution.Place the electrode into the next standard solution. Stir the electrode gently.
Press the Enter key, the Calibration icon begins flashing.
1.7 Wait for the reading to stabilize, the meter automatically show END and return to the
measurement mode. Calibration is completed.

•If you have selected the multi-point calibration in the setup menu, the display will show CAL3.
The meter prompts you to continue with third point calibration. Repeat the step 1.6 above
until the display shows END. The meter will automatically return to the measurement mode.
•If you want to exit the calibration, press the Meas key.

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Viewing the calibration report
2.1 Press the MR key in the ion measurement mode, the meter shows LOC/P-01.
2.2 Press the or key until the meter shows ELE/P-02.
2.3 Press the Enter key, the meter shows the last calibration date (Format: month-day).
2.4 Press the key, the meter shows the first calibartion point and mV value (e.g., 0.01mmol/L,
23mV).
2.5 Press the key, the meter shows the second calibartion point and mV value (e.g.,0.1mmol/L,
52mV).
2.6 To exit the calibration report, press the Meas key.

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Temperature Calibration
During the measurement process, if the temperature reading displayed differs from that of an accurate thermometer, the meter needs to be calibrated.
1. Connect the temperature probe to the meter and place into a solution with a known accurate temperature.
2. Press and hold the oCkey for 3 seconds to enter the temperature setting mode.
3. Press the or key to set the temperature value.
4. Press the Enter key to confirm. Calibrating is completed.
During the setting process, press the 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.
Water Hardness Measurement
Before measuring, ensure that the temperature of samples are the same as the standard solutions, the maximum error should be controlled within the 1°C.
For low level measurements or samples contain the interference ions, ensure that adding the ionic strength adjuster to samples.
1. Press the Mode key to select desired measurement mode (Refer to page 6 “Switching the Measurement Mode”).
2. Rinse the water hardness electrode thoroughly with distilled water. Place the electrode into the sample solution, stir the electrode gently. Record
the measured value when the reading is stable.
Auto-Hold
The meter contains an Auto-Hold function. If enabled, the meter will automatically sense a stable reading and lock the measurements, the HOLD icon
appears on the display. If disabled, press the key, the meter will immediately lock the displayed value. Press the Meas key to resume measuring.

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Storing and Recalling Data
The Bante932 water hardness meter is capable of storing and recalling up to 500 data sets.
Storing readings into memory
During the measurement process, press the MI key to store the reading into the memory, the Memory
icon appears on the display.
Viewing stored readings
1. Press the MR key in the measurement mode, the meter shows LOC/P-01 (Data Log).
2. Press the Enter key, the meter shows the serial number of the stored data.
3. Press the key, the meter shows the date and time of the stored data (Format: month-day,
hour-minutes).
4. Press the key, the meter shows the stored data.
5. Press the key again, the meter shows next data set.
6. Press the Meas key, the meter returns to the measurement mode.
Clearing the memory
Please refer to page 7 SETUP MENU.

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Communication
Bante Instruments provides a Data Acquisition System that can be used to transfer data, receive the measuring values or import the data to Excel. You are
able to download this software from our official website at www.bante-china.com. Before installation, ensure that Windows 7/8/10 operating system has
been installed on your computer.
Receiving data
•Connect the USB cable to meter and computer. Click the DAS icon, the system will automatically scan an available communication port and show the
message box “Found a port on your computer”.
•Click the OK button, the application starts.
•Click the Connect button, the screen shows “Port is connected” indicate that the communication between the meter and the computer has been
established.
•Click the OK button to confirm.
•Click the Receive button, the stored data automatically transfer to computer.
Interval recording
This function is used for recording the measuring value within the specify time period.
•Click the Interval Recording button and select a time option.
•Click the Receive button, the measured value will automatically send to data sheet.

•The first data need 1 minute to be shown on screen.
•Do not press any key on meter during the Interval Recording mode, it will cause communication interruption.
Graph mode
This function is used for viewing the variations of the measured parameter continuously.
Click the Graph button, the screen immediately shows the curve graph. To quit current mode, click the Back button.
Create the excel file
When the transfer is completed, click the Save as Excel button, the measured values in the data sheet will automatically convert to Excel file.
Once the software is closed, all received data will be lost and can not be recovered.

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Electrode Care and Maintenance
•Ensure that the water hardness electrode is thoroughly washed with distilled water after each use.
•Avoid touching the membrane surface.
•If performance becomes sluggish, rinse with dilute detergent, rinse with distilled water and immerse the tip in a 1000ppm calcium solution for 1 hour.
Troubleshooting
LCD DISPLAY
CAUSE
CORRECTIVE ACTION
Electrode has dried out
Soak the water hardness electrode in the 1000ppm calcium solution for at least 1 hours.
Measured value is out of range
Check the electrode whether clogged, dirty or broken.
Incorrect calibration solutions
Using the fresh calibration solutions for calibration.
Electrode has expired
Replace the electrode.
Keypad is not working properly
Replace the batteries.
Specifications
Water Hardness
Model
Bante932
Range
0.05~200mmol/L
Range (CaCO3)
0~19999mg/L
Range (CaO)
0~11220mg/L
Range (Boiler)
0~400mmol/L
Range (Ca2+)
0~8020mg/L
Range (German Degree)
0~1122° dH
Range (French Degree)
0~2000° f
Range (English Degree)
0~1404° e
Accuracy
± 1% F.S
Resolution
0.001/0.01/0.1/1
Calibration Points
2 to 5 points
Calibration Solutions
0.01/0.1mmol/L, 0.001/0.01/0.1mol/L
Temperature
Range
0~105°C
Accuracy
± 0.5°C
Resolution
0.1°C
Calibration Points
1 point

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General
Temperature Compensation
0~50°C, Manual or Automatic
Memory
Stores up to 500 data sets
Output
USB communication interface
Connector
BNC
Display
LCD
Operating Temperature
0~60°C
Relative Humidity
< 80%
Power Requirements
DC5V, using AC adapters, 220VAC/50Hz
Dimensions
210 (L) × 188 (W) × 60 (H)mm
Weight
1.5kg

Hazardous Substance Statement
Bante Instruments is committed to the reduction and eventual elimination of all hazardous substances in both the manufacturing process and finished
products we supply. We have an active manufacturing and procurement program to minimize and eliminate the use of harmful heavy metals such as
cadmium, lead, mercury and the like. New technologies and design parameters are also promoting these efforts and we expect to have little or no such
materials in our product in the coming years. We welcome our customer suggestions on how to speed up these efforts.
Warranty
The warranty period for meter is one year from the date of shipment. Above warranty does not cover the sensor and calibration solutions. 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 nearest authorized distributor.
BANTE INSTRUMENTS CO., LTD
E-mail: banteinstr[email protected]om
Phone: [phone]
Website: www.bante-china.com
The information in this document is subject to change without notice. Copyright © Bante Instruments, 2018. All rights reserved.