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INSTRUCTION MANUAL
Multiparameter Bench Meter
Multiparameter Bench Meter
Multiparameter Bench Meter
Multiparameter Bench Meter
Multiparameter Bench Meter
Mi 180
pH/mV/EC/TDS/NaCl/T
pH/mV/EC/TDS/NaCl/T
pH/mV/EC/TDS/NaCl/T
pH/mV/EC/TDS/NaCl/T emperature
pH/mV/EC/TDS/NaCl/T
www.milwaukeetesters.com
emperature
emperature
emperature
emperature
www.milwaukeeinst.com
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Related Manuals for Milwaukee Mi 180
Summary of Contents for Milwaukee Mi 180
- Page 1 INSTRUCTION MANUAL Multiparameter Bench Meter Multiparameter Bench Meter Multiparameter Bench Meter Multiparameter Bench Meter Multiparameter Bench Meter Mi 180 pH/mV/EC/TDS/NaCl/T pH/mV/EC/TDS/NaCl/T emperature emperature pH/mV/EC/TDS/NaCl/T pH/mV/EC/TDS/NaCl/T pH/mV/EC/TDS/NaCl/T emperature emperature emperature www.milwaukeeinst.com...
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Page 2: Table Of Contents
Instruction Manual Mi 180 Bench Meter FUNCTIONAL DESCRIPTION .................... 2 GENERAL DESCRIPTION ....................4 SPECIFICATIONS ......................5 OPERATIONAL GUIDE ..................... 7 AUTORANGING ......................11 pH CALIBRATION ......................12 pH BUFFER TEMPERATURE DEPENDENCE ................ 15 RELATIVE mV CALIBRATION ..................... 16 EC/TDS CALIBRATION ..................... 17 NaCl CALIBRATION ...................... - Page 3 www.milwaukeeinst.com FUNCTIONAL DESCRIPTION FRONT PANEL FRONT PANEL FRONT PANEL FRONT PANEL FRONT PANEL 1. Liquid Crystal Display (LCD) 2. CAL key, to enter/exit calibration mode 3. GLP/ACCEPT key, to display GLP data or to confirm value 4. SHIFT key, to select second key function 5.
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Page 4: General Description
Mi Mi 180 is a logging microprocessor-based pH, ORP, EC, TDS, NaCl and temperature bench meter. This meter is provided with a series of new diagnostic features which add an entirely... -
Page 5: Specifications
www.milwaukeeinst.com SPECIFICATIONS Range -2.00 to 16.00 pH / -2.000 to 16.000 pH ±699.9 mV / ±2000 mV 0.00 to 29.99 μS/cm 30.0 to 299.9 μS/cm 300 to 2999 μS/cm 3.00 to 29.99 mS/cm 30.0 to 200.0 mS/cm up to 500.0 mS/cm (uncompensated EC)* 0.00 to 14.99 mg/L (ppm) 15.0 to 149.9 mg/L (ppm) 150 to 1499 mg/L (ppm) - Page 6 Instruction Manual Mi 180 Bench Meter Accuracy ±0.01 pH / ±0.002 pH (@ 20 °C / 68 °F) ±0.2 mV / ± 1 mV ±1% of reading ±(0.05 μS/cm or 1 digit) ±1% of reading ±(0.03 mg/L or 1 digit) NaCl ±1% of reading...
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Page 7: Operational Guide
www.milwaukeeinst.com 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 pH measurements, connect the pH electrode to the BNC connector and the temperature probe to the appropriate socket on the rear panel of the instrument. - Page 8 Instruction Manual Mi 180 Bench Meter Note Note Note Note Note: To change pH resolution press the MODE/SETUP key. If measurements are taken successively in different samples, it is recommended to rinse the electrode thoroughly with deionizated water and then with some of the sample to be tested.
- Page 9 www.milwaukeeinst.com 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. •If the instrument displays a Rel mV reading and it is desired to take mV measurements, simply clear the Rel mV calibration (see Rel mV calibration section at page 16).
- Page 10 Instruction Manual Mi 180 Bench Meter Note Note Note Note Note: The compensation is referenced at the selected reference temperature (see SETUP for details, page 33). Automatic (ATC): The EC probe has a built-in temperature sensor; the temperature value is used to automatically compensate the EC/TDS reading (from -20.0 –...
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Page 11: Autoranging
www.milwaukeeinst.com Notes Notes Notes Notes Notes: •If the reading is out of range, the full-scale value (160.0 g/L for MTC/ATC mode or 400.0 g/L for uncompensated TDS) will be displayed blinking. •If the SHIFT&RANGE/FIXED keys are pressed to freeze the LCD range and the reading goes out of range, the full-scale value of the frozen range will be displayed blinking. -
Page 12: Ph Calibration
Instruction Manual Mi 180 Bench Meter 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. - Page 13 www.milwaukeeinst.com • 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 14 Instruction Manual Mi 180 Bench Meter • 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.
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Page 15: Ph Buffer Temperature Dependence
www.milwaukeeinst.com 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 16: Relative Mv Calibration
Instruction Manual Mi 180 Bench Meter 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 17: Ec/Tds Calibration
www.milwaukeeinst.com EC/TDS CALIBRATION EC calibration is a one-point procedure. Selectable calibration points are 0.00 μS for offset and 84.0 μS, 1413 μS, 5.00 mS, 12.88 mS, 80.0 mS, 111.8 mS for slope. Rinse the probe with calibration solution or deionized water. Immerse the probe into the solution. -
Page 18: Nacl Calibration
Instruction Manual Mi 180 Bench Meter Press the GLP/ACCEPT key to confirm calibration. The instrument stores the calibration value and returns to measurement mode. Notes Notes Notes: Notes Notes •If the uncalibrated reading is too far from the expected value, the “WRONG” and “SOLUTION”... -
Page 19: Good Laboratory Practice (Glp)
CALIBRATION ALARM TIME-OUT CALIBRATION ALARM TIME-OUT For pH calibration, Mi 180 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 if the time elapsed, the “CALIBRATION EXPIRED”... - Page 20 Instruction Manual Mi 180 Bench Meter LAST LAST LAST LAST LAST p p p p p H CALIBRATION DATA H CALIBRATION DATA H CALIBRATION DATA H CALIBRATION DATA H CALIBRATION DATA pH calibration data is stored automatically after a successful calibration.
- Page 21 www.milwaukeeinst.com • 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 under the pH value means that this buffer was not used during last calibration.
- Page 22 Instruction Manual Mi 180 Bench Meter • The “no BUFFER” message means that the instrument was calibrated in less than three points. • Calibration alarm time-out status. 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 23 www.milwaukeeinst.com Press the arrow UP key and the instrument will display the following calibration parameters: • The date (MM.DD.YYYY) as in pH GLP mode. • The EC calibration solution on the primary LCD and the cell constant on the secondary LCD. •...
- Page 24 Instruction Manual Mi 180 Bench Meter LAST LAST LAST LAST LAST NaCl NaCl NaCl NaCl NaCl CALIBRATION DATA CALIBRATION DATA CALIBRATION DATA CALIBRATION DATA CALIBRATION DATA Last NaCl calibration data is stored automatically after a successful calibration. To view the NaCl calibration data, press the GLP/ACCEPT key when the instrument is in NaCl measurement mode.
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Page 25: Logging
www.milwaukeeinst.com • If calibration has not been performed for the selected range, the instrument displays “no CAL” message blinking. LOGGING Up to 50 readings can be stored into memory for each measurement range (pH, mV/Rel mV, EC, TDS and NaCl). LOGGING THE CURRENT DATA LOGGING THE CURRENT DATA LOGGING THE CURRENT DATA... - Page 26 Instruction Manual Mi 180 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 27 www.milwaukeeinst.com VIEW LOGGED DATA VIEW LOGGED DATA VIEW LOGGED DATA VIEW LOGGED DATA VIEW LOGGED DATA Press the SHIFT&LOG/CLR/MR keys to retrieve the information stored while in measurement mode. pH, mV/Rel mV RANGE If no data is logged, the instrument displays “no rEC” message for the selected mode. Otherwise, the instrument will display the pH pH or Rel mV Rel mV...
- Page 28 Instruction Manual Mi 180 Bench Meter Press the RANGE/FIXED key and the instrument will display the next logged parameter: • The mV value on the primary LCD and the temperature on the secondary LCD. • The date: month and day on the primary LCD and the year on the secondary LCD, along with “DATE”...
- Page 29 www.milwaukeeinst.com • The slope on the primary LCD and the offset on the secondary LCD, along with “SLOPE” and “OFFSET” tags. Note Note Note Note Note: If in mV/Rel mV RECALL mode, the instrument will display dashes for slope. • The “dEL” message on the primary LCD and the record number on the secondary LCD, along with “ACCEPT”...
- Page 30 Instruction Manual Mi 180 Bench Meter •Press the GLP/ACCEPT key to delete the selected or all records. •If “dEL ALL” option was selected, all records for the selected range are deleted and the instrument returns to measurement mode. •After deleting a record, the “nuLL” message is displayed on the LCD for the selected record.
- Page 31 www.milwaukeeinst.com Press the RANGE/FIXED key and the instrument will display the next logged parameter: • The conductivity value on the primary LCD and the cell constant on the secondary LCD. • The date as described in pH range. • The time as described in pH range. •...
- Page 32 Instruction Manual Mi 180 Bench Meter • For NaCl mode: the salinity coefficient. • The reference temperature. • The temperature coefficient and compensation mode. • The “dEL” message as described in pH range. Press the SHIFT&LOG/CLR/MR keys to leave RECALL mode at any time.
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Page 33: Setup
www.milwaukeeinst.com SETUP Setup mode allows viewing and modifying the following parameters: • Calibration Alarm Time-Out (pH range only) • Buffer Display (pH range only) • Cell Constant (EC range only) • TDS Factor (EC range only) • Temperature Coefficient (EC range only) •... - Page 34 Instruction Manual Mi 180 Bench Meter If there is another item to be set (e.g. minutes), press the RANGE/FIXED key, and that item will start blinking. Press the arrow keys to change the blinking value. Press the GLP/ACCEPT key to accept the value or the CAL key to escape.
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Page 35: Mv Calibration
If the mV measurements are inaccurate, mV recalibration should be performed. For an accurate recalibration, contact your dealer or the nearest Milwaukee Customer Service Center, or follow the instructions below. A two or three-point calibration can be performed at 0.0 mV, 600 mV and 1800 mV. -
Page 36: Temperature Calibration
If the temperature measurements are inaccurate, temperature recalibration should be performed on both ranges (pH and EC). For an accurate recalibration, contact your dealer or the nearest Milwaukee Customer Service Center, or follow the instructions bellow. • Prepare a vessel containing ice and water and another one containing hot water (at 50 °C). -
Page 37: Ec Solutions Temperature Dependence
Both parameters are temperature dependent. The dependency of con- ductivity on temperature is expressed as a relative change per Celsius degrees at a particular temperature, commonly as %/°C. The following table lists the temperature dependence of Milwaukee EC calibration solutions. ºC ºF... -
Page 38: Pc Interface
Data can be exported to the most popular spreadsheet programs for further analysis. To connect the instrument to a PC through the RS232 port, use the Milwaukee MA9350 cable connector. To connect the instrument to a PC through the USB port, use a standard USB cable. Make sure that your instrument is switched off and plug one connector of the cable to the instrument RS232/USB connector and the other to the serial port of your PC. - Page 39 www.milwaukeeinst.com • xx=06 EC range • xx=07 TDS range • xx=08 NaCl range 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>...
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Page 40: Electrode Conditioning & Maintenance
Instruction Manual Mi 180 Bench Meter LAMV LAMV LAMV Requests all mV/Rel mV Log on demand. LAMV LAMV L A E C L A E C L A E C L A E C L A E C Requests all EC Log on demand. - Page 41 www.milwaukeeinst.com PERIODIC PERIODIC PERIODIC PERIODIC PERIODIC MAINTENANCE MAINTENANCE MAINTENANCE MAINTENANCE MAINTENANCE Inspect electrode and cable. The cable used for the connection to the instrument must be intact and there must be no points of broken insulation on the cable or cracks on the electrode stem or bulb.
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Page 42: Troubleshooting
Instruction Manual Mi 180 Bench Meter TROUBLESHOOTING . t f i o l l l l i f i f e a l l . ) y i f e a l l . ) y y l r i l b... -
Page 43: Accessories
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 improve- Milwaukee/Martini instruments reserves the right to make improve- Milwaukee/Martini instruments reserves the right to make improve-... - Page 44 THANK YOU FOR CHOOSING Sales and Technical Service Contacts: Milwaukee Electronics Kft. Alsókikötő sor 11. 6726, Szeged, Hungary Tel: +36-62-428-050 Fax: +36-62-428-051 e-mail: sales@milwaukeeinst.com Milwaukee Instruments, Inc. 2950 Business Park Drive Rocky Mount, NC 27804 USA Tel: +1 252 443 3630 Fax: +1 252 443 1937 e-mail: sales@milwaukeetesters.com...