Martini Instruments Mi 160 Instruction Manual
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Martini Instruments Mi 160 Instruction Manual

Bench meter ph/mv/ise/temperature
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INSTRUCTION MANUAL
Mi 160
pH/mV/ISE/T
pH/mV/ISE/T emperature
pH/mV/ISE/T
pH/mV/ISE/T
pH/mV/ISE/T
www.milwaukeetesters.com
Bench Meter
Bench Meter
Bench Meter
Bench Meter
Bench Meter
emperature
emperature
emperature
emperature
www.milwaukeetesters.com
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  • Page 1 INSTRUCTION MANUAL Bench Meter Bench Meter Bench Meter Bench Meter Bench Meter Mi 160 pH/mV/ISE/T pH/mV/ISE/T pH/mV/ISE/T emperature emperature emperature emperature pH/mV/ISE/T pH/mV/ISE/T emperature www.milwaukeetesters.com...

  • Page 2: Table Of Contents

    Instruction Manual Mi 160 Bench Meter GENERAL DESCRIPTION ..................... 4 FUNCTIONAL DESCRIPTION ..................2 SPECIFICATIONS ....................... 5 OPERATIONAL GUIDE ....................6 pH CALIBRATION ....................... 9 pH BUFFER TEMPERATURE DEPENDENCE ..............12 RELATIVE mV CALIBRATION ..................13 ISE CALIBRATION ..................... 14 GOOD LABORATORY PRACTICE (GLP) ...............
  • Page 3 ON/OFF 7. RANGE key, to select measurement RANGE ACCEPT range or to switch focused data. SETUP Mi 160 pH / mV / ISE / Temperature Bench Meter 8. UP and DOWN arrow keys, to manu- ally increase/decrease temperature or other parameters value 9.

  • Page 4: General Description

    Mi 160 Mi 160 Mi 160 is a logging microprocessor-based pH, ORP, ISE and temperature bench meter. This meter is provided with a series of new diagnostic features which add an entirely new dimension to the measurement of pH/ORP/ISE, by allowing the user to dramati- cally improve the reliability of the measurement: •...

  • Page 5: Specifications

    www.milwaukeetesters.com SPECIFICATIONS Range -2.00 to 16.00 pH ±699.9 mV / ±2000 mV 0.001 to 19999 ppm (ISE) -20.0 to 120.0 °C (-4.0 to 248.0 °F) Resolution 0.01 pH 0.1 mV / 1 mV 0.001 (0.001 to 9.999) ppm 0.01 (10.00 to 99.99) ppm 0.1 (100.0 to 999.9) ppm 1 (1000 to 19999) ppm 0.1 °C (0.1 °F)

  • Page 6: Operational Guide

    Instruction Manual Mi 160 Bench Meter OPERATIONAL GUIDE INITIAL PREPARATION INITIAL PREPARATION INITIAL PREPARATION INITIAL PREPARATION INITIAL PREPARATION Plug the 12 VDC adapter to the power supply socket. To prepare the instrument for use, connect the pH electrode to the BNC connector and the temperature probe to the appropriate socket on the rear panel of the instrument.
  • Page 7 www.milwaukeetesters.com If measurements are taken successively in different samples, it is recommended to rinse the electrode thoroughly with water and then with some of the sample to be tested. The pH reading is affected by temperature. In order to measure the pH accurately, the temperature effect must be compensated.
  • Page 8 Instruction Manual Mi 160 Bench Meter Notes Notes Notes: Notes Notes •When the reading is out of range, the closest full-scale value is displayed blinking. •If using a pH electrode while in mV mode, the instrument will measure the mV generated by the pH electrode.

  • Page 9: Ph Calibration

    www.milwaukeetesters.com pH CALIBRATION It is recommended to calibrate the instrument frequently, especially if high accuracy is required. The pH calibration is also necessary in the following cases: a) Whenever the pH electrode is replaced. b) At least once a week. c) After testing aggressive chemicals.
  • Page 10 Instruction Manual Mi 160 Bench Meter • If necessary, press the UP and DOWN arrow keys to select a different buffer value. • The “WAIT” tag will blink on the LCD until the reading is stable. • When the reading is stable and close to the selected buffer, the “READY” and “ACCEPT” tags will blink on the LCD.
  • Page 11 www.milwaukeetesters.com • After the second calibration point is accepted, immerse the pH electrode and the tempera- ture probe approximately 4 cm (1½”) into the third buffer solution and stir gently. The temperature probe should be close to the pH electrode. •...

  • Page 12: Ph Buffer Temperature Dependence

    Instruction Manual Mi 160 Bench Meter 1 OR 2 POINT CALIBRATION • Proceed as described in “Three-point calibration” section. • Press the CAL key after the appropriate calibration point is accepted. The instrument will return to measurement mode, will memorize the calibration data, and the appropriate tags for the calibrated buffers will be displayed on the LCD only if the “disp”...

  • Page 13: Relative Mv Calibration

    www.milwaukeetesters.com RELATIVE mV CALIBRATION • Press the CAL key when the instrument is in mV / Rel mV measurement mode. The “CALIBRATION” tag will appear on the LCD. • Relative mV value is displayed on the primary LCD and the absolute mV value on the secondary LCD.

  • Page 14: Ise Calibration

    Instruction Manual Mi 160 Bench Meter ISE CALIBRATION For greatest accuracy, it is recommended to calibrate the instrument frequently. Due to electrode conditioning time, the electrode must be kept immersed a few seconds to stabilize. PROCEDURE PROCEDURE PROCEDURE PROCEDURE PROCEDURE One or two-point calibration can be performed, with six memorized standards: 0.01, 0.1, 1,...
  • Page 15 www.milwaukeetesters.com • When the reading is stable and close to the selected standard, the “READY” and “ACCEPT” tags will blink. • Press the GLP/ACCEPT key to confirm calibration. • The calibrated value will be displayed on the primary LCD and the second expected standard value on the secondary LCD.

  • Page 16: Good Laboratory Practice (Glp)

    CALIBRATION ALARM TIME-OUT CALIBRATION ALARM TIME-OUT For pH calibration, Mi 160 allows the user to set the number of days (1 to 14) before the next required calibration. The default setting is OFF (disabled). The instrument checks the time-out and out the time elapsed, the “CALIBRATION EXPIRED”...
  • Page 17 www.milwaukeetesters.com LAST LAST LAST p p p p p H CALIBRATION DATA H CALIBRATION DATA H CALIBRATION DATA H CALIBRATION DATA LAST LAST H CALIBRATION DATA pH calibration data is stored automatically after a successful calibration. To view the last pH calibration data, press the GLP/ACCEPT key while in pH measurement mode. The instrument will display the time (hh:mm:ss) of the last calibration.
  • Page 18 Instruction Manual Mi 160 Bench Meter • The pH calibration buffers in calibrating order. The first pH calibration buffer: • The second pH calibration buffer: • The third pH calibration buffer: Notes Notes Notes Notes Notes: • The “OLd” message displayed beneath the pH value means that this buffer was not used during last calibration.
  • Page 19 www.milwaukeetesters.com • The “no BUFFER” message means that the instrument was calibrated in less than three points. • The meter displays “OFF” if the function is disabled, or the number of days before the calibration alarm will be displayed (e.g. 5 days), or from the time calibration expired (e.g.
  • Page 20 Instruction Manual Mi 160 Bench Meter • The date (MM.DD.YYYY) as in pH GLP mode. • The value slope on the primary LCD and the offset on the secondary LCD. • The first calibration standard. • The second calibration standard.

  • Page 21: Logging

    www.milwaukeetesters.com • If “no BUFFER” message appears on the LCD, the instrument informs you that calibration was performed in only one point. • If a one-point calibration is performed after a two-point calibration, the instrument will keep the old slope. •...
  • Page 22 Instruction Manual Mi 160 Bench Meter The instrument then displays the amount of free log space for about one second and returns to normal measurement mode (e.g. 45 records free). If there are less than 6 memory locations remaining, the record number and “Lo” message will blink to alert the user.
  • Page 23 www.milwaukeetesters.com Rel mV Rel mV Otherwise, the instrument will display the pH pH, Rel mV Rel mV Rel mV or ppm ppm value on the primary LCD and the last stored record number along with “LOG” tag. Pressing the arrow keys, the instrument will display the same parameter but for a different record: Press the RANGE key and the instrument will display the next logged parameter: •...
  • Page 24 Instruction Manual Mi 160 Bench Meter • The date: month and day on the primary LCD and the year on the secondary LCD, along with “DATE” tag. • The time: hour and minutes on the primary LCD and the seconds on the secondary LCD, along with “TIME”...
  • Page 25 www.milwaukeetesters.com Notes Notes Notes: Notes Notes •If one of the arrow keys is pressed while “dEL” message is displayed, the next/previous record number will be selected. •If the SETUP key is pressed, the secondary LCD will toggle between the record number and “ALL”...

  • Page 26: Setup

    Instruction Manual Mi 160 Bench Meter SETUP Setup mode allows viewing and modifying the following parameters: • Calibration Alarm Time-Out (pH range only) • Buffer Display (pH range only) • Ion Charge (ISE range only) • Current Time (hh:mm) • Current Date (MM.DD.YYYY) •...
  • Page 27 www.milwaukeetesters.com Press the arrow keys to change the blinking value. Press the GLP/ACCEPT key to accept the value or the CAL key to escape. Press the arrow keys to select the next/previous parameter. Press the SETUP key to exit SETUP menu at any time. The following table lists the SETUP parameters, their valid values range and the factory settings (default): Item...

  • Page 28: Mv Calibration

    CALIBRATION (for technical personnel only) The Mi 160 Mi 160 Mi 160 Mi 160 is factory calibrated for mV. Mi 160 Martini’s ORP electrodes are interchangeable and no mV calibration is needed when they are replaced. If the mV measurements are inaccurate, mV recalibration should be performed.

  • Page 29: Temperature Calibration

    Mi 160 The Mi 160 Mi 160 Mi 160 is factory calibrated for temperature. Martini’s temperature probes are interchangeable and no temperature calibration is needed when they are replaced. If the temperature measurements are inaccurate, temperature recalibration should be per- formed.

  • Page 30: Pc Interface

    9350 may use a different configuration. In this case, communication between instrument and PC may not be possible. •Keep only one cable connected (RS232 or USB) during PC communication to avoid possible errors. •If you are not using Martini Instruments Mi 5200 Mi 5200 Mi 5200 Mi 5200 Mi 5200 software, please see the following instructions.
  • Page 31 www.milwaukeetesters.com The instrument will answer for this command with: <STX> <answer> <ETX> where: <STX> is 02 ASCII code character (start of text) <ETX> is 03 ASCII code character (end of text) <answer>: <ACK> is sent for a recognized command <CAN> is sent when the instrument is logging <Err6>/<Err8>...

  • Page 32: Electrode Conditioning & Maintenance

    Instruction Manual Mi 160 Bench Meter ELECTRODE CONDITIONING & MAINTENANCE PREPARATION PROCEDURE PREPARATION PROCEDURE PREPARATION PROCEDURE PREPARATION PROCEDURE PREPARATION PROCEDURE Remove the electrode protective cap. DO NOT BE ALARMED IF ANY SALT DEPOSITS ARE PRESENT. This is normal with electrodes and they will disappear when rinsed with water.

  • Page 33: Troubleshooting

    www.milwaukeetesters.com CLEANING PROCEDURE CLEANING PROCEDURE CLEANING PROCEDURE CLEANING PROCEDURE CLEANING PROCEDURE • General Soak in MA MA 9016 9016 9016 9016 General Cleaning Solution for approx. ½ hour. 9016 IMPORTANT: After performing any of the cleaning procedures, rinse the electrode thoroughly with distilled water and soak it in M M M M M A A A A A 9015 9015 9015...

  • Page 34: Accessories

    Instruction Manual Mi 160 Bench Meter ACCESSORIES MA 9001 MA 9001 MA 9001 MA 9001 MA 9001 pH 1.68 Buffer Solution (230 mL bottle) MA 9004 MA 9004 MA 9004 MA 9004 MA 9004 pH 4.01 Buffer Solution (230 mL bottle)
  • Page 35 Damage due to accidents, misuse, tampering or lack of prescribed maintenance is not covered by the warranty. Milwaukee/Martini instruments reserves the right to make improvements in Milwaukee/Martini instruments reserves the right to make improvements in Milwaukee/Martini instruments reserves the right to make improvements in...
  • Page 36 Instruction Manual Mi 160 Bench Meter THANK YOU FOR CHOOSING Sales and Technical Service Contacts: Milwaukee s.r.l. C.so Leonardo da Vinci 48/50 21013 Gallarate (VA) ITALY Tel: +39 0331 26 80 09 Fax: +39 0331 26 80 33 e-mail: sales@milwaukee.191.it Milwaukee Instruments, Inc.

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