Bante Instruments Bante221 Instruction Manual
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Bante Instruments Bante221 Instruction Manual

Portable ph/orp meter
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Bante221 Portable pH/ORP Meter
Instruction Manual
BANTE INSTRUMENTS CO., LTD

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Summary of Contents for Bante Instruments Bante221

  • Page 1 Bante221 Portable pH/ORP Meter Instruction Manual BANTE INSTRUMENTS CO., LTD...
  • Page 2 Bante221 Portable pH/ORP Meter Introduction Thank you for selecting the Bante221 portable pH/ORP 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.
  • Page 3 Bante221 Portable pH/ORP Meter Display The Bante221 portable pH/ORP 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: Low battery alarm: Indicates the meter is in the measurement mode.
  • Page 4 Bante221 Portable pH/ORP Meter Keypad 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 (pH, mV and ORP).

  • Page 5: Installing The Batteries

    Bante221 Portable pH/ORP Meter Installing the Batteries • Remove the battery cover from backside of the meter. • Insert three AA batteries into the battery compartment, note polarity. • Replace the battery cover into its original position. Installation is completed.

  • Page 6: Prior To Use

    Bante221 Portable pH/ORP Meter Prior to Use Remove the protective cap from the bottom of the electrode. pH Electrode: If the glass sensitive membrane has dried out, soak the electrode in 3M KCL solution (pH adjusted to 4.0) for at least 30 minutes.

  • Page 7: Setup Menu

    Setup Menu The Bante221 portable pH/ORP meter contains an integrated setup menu that is used to customize the displayed option to meet measurement requirements. In the different modes, the meter will show the corresponding options. The following table describes the functions of the menu items.
  • Page 8 Bante221 Portable pH/ORP Meter 10 minutes Auto-Power Off: 20 minutes When the option is enabled, the meter will Disable automatically turn off if no key is pressed within a 30 minutes specified time period. Disable Calibration Due: 1 to 31 days …...

  • Page 9: Setting The Date And Time

    Bante221 Portable pH/ORP Meter Setting the date and time Press and hold the key for 3 seconds to enter the setup menu and the  or  key until the display shows DATE/P-09. Press the key, the meter shows current year (e.g., 2018).

  • Page 10: Automatic Temperature Compensation

    Bante221 Portable pH/ORP Meter Temperature Compensation For better accuracy, we recommend the use of either a sensor with a built-in or a separate temperature probe for the calibration or measurements. Automatic Temperature Compensation Connect the temperature probe to the meter (Refer to page 4 “Connecting the Sensors”). The ATC icon immediately appears on the display, the meter is now switched to the automatic temperature compensation mode.

  • Page 11: Single Point Calibration

    Calibration The Bante221 portable pH/ORP meter allows 1 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.

  • Page 12: Multi-Point Calibration

    Bante221 Portable pH/ORP Meter Multi-point calibration Ensure that you have selected 2 to 5 points calibration in the setup menu. Repeat the steps 1.2 to 1.3 above. When the first calibration point is completed, the display will show CAL2. The meter prompts you to continue with second point calibration.

  • Page 13: Ph Calibration With Custom Buffers

    Bante221 Portable pH/ORP Meter pH calibration with custom buffers Ensure that you have selected the USER option in the setup menu. The calibration solutions should be at least 1 pH unit apart from each other. Rinse the pH electrode with distilled water, place the electrode (and temperature probe) into the custom buffer solution.
  • Page 14 Bante221 Portable pH/ORP Meter Viewing the pH calibration report Press the key in the pH measurement mode, the meter shows LOC/P-01. Press the  or  key until the meter shows ELE/P-02. Press the key, the meter shows the last calibration date (Format: month-day).

  • Page 15: Orp Calibration

    Bante221 Portable pH/ORP Meter ORP Calibration The Bante221 portable pH/ORP 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.
  • Page 16 Bante221 Portable pH/ORP Meter Viewing the ORP calibration report Press the key in the ORP measurement mode, the display shows LOC/P-01. Press the  or  key until the display shows ELE/P-02. Press the key, the display shows the last calibration date (Format: month-day).

  • Page 17: Temperature Calibration

    Bante221 Portable pH/ORP Meter Temperature Calibration During the measurement process, if the temperature reading displayed differs from that of an accurate thermometer, the meter needs to be calibrated. Connect the temperature probe to the meter and place into a solution with a known accurate temperature.

  • Page 18: Orp Measurement

    Rinse the pH electrode with distilled water. Place the electrode (and temperature probe) into the sample solution, stir the electrode gently. Record the measured value when the reading is stable. ORP Measurement The Bante221 portable pH/ORP meter provides two millivolt measurement modes. • Press the key until the display shows measurement unit “mV”, the meter is now enters the absolute mV measurement mode.

  • Page 19: Storing And Recalling Data

    Bante221 Portable pH/ORP Meter Storing and Recalling Data The Bante221 portable pH/ORP meter is capable of storing and recalling up to 500 data sets. Storing readings into memory During the measurement process, press the key to store the reading into the memory, the Memory icon appears on the display.

  • Page 20: Receiving Data

    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.

  • Page 21: Electrode Care And Maintenance

    Bante221 Portable pH/ORP Meter Electrode Care and Maintenance pH electrode Since pH electrode is susceptible to dirt and contamination, clean as necessary depending on the extent and condition of use. • After measuring: rinse the electrode in distilled water, store the electrode into the 3M KCL solution.

  • Page 22: Specifications

    Bante221 Portable pH/ORP Meter Specifications Model Bante221 Range -2.000~20.000pH Accuracy ± 0.002pH Resolution 0.1/0.01/0.001pH, Selectable Calibration Points 1 to 5 points USA (pH1.68/4.01/7.00/10.01/12.45) pH Buffer Options NIST (pH1.68/4.01/6.86/9.18/12.45) DIN (pH1.09/4.65/6.79/9.23/12.75) Automatic Buffer Recognition Range -1999.9~1999.9mV Accuracy ± 0.2mV Resolution 0.1/1mV, Selectable...
  • Page 23 Addendum 1: pH Electrode Selection Guide The Bante221 portable pH/ORP meter comes with a general purpose pH electrode that is used to measure the pH of the liquids. If this electrode can not meet your measurement requirements, please refer to the table below to select an applicable probe.
  • Page 24 Bante221 Portable pH/ORP Meter Addendum 3: Preparation of pH Buffer Solutions • Open the pH7.00 buffer packet, place the reagent into a 250ml volumetric flask. Pour the distilled water 250ml to scale line, mix the solution until the reagent is completely dissolved.

  • Page 25: Warranty

    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.

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