Mi105 - Milwaukee Instruments
Contents
1. message appear on the secondary LCD e After measurements switch the meter off by pressing the ON OFF key The OFF message appears on the LCD release the button Notes e Before taking any measurement make sure that the meter has been calibrated the CAL tag is displayed on the left lower corner of the LCD e Always replace the electrode protective cap after use with a few drops of storage solution CALIBRATION PROCEDURE It is recommended to recalibrate the meter at least once every three weeks A Preparation Buffer solutions 1 pH 7 01 6 86 MA9007 MA9006 2 pH 4 01 MA9004 for acidic calibration pH lt 7 or pH 10 01 9 18 MA9010 MA9009 for alkaline range pH gt 7 Use two beakers for each buffer solution one beaker for rinsing the probe the other for calibration In this way the cross contamination between solutions is minimized B Procedure e Select the calibration buffer set press and hold the ON OFF key until the LCD shows TEMP Press again this key and the BUFF message will appear then select the de sired buffer set with the SET key 7 01 pH BUFF for standard solutions pH 4 01 7 01 10 01 or 6 86 pH BUFF for NIST solutions pH 4 01 6 86 9 18 Press the ON OFF key again to exit Remove the protective cap then immerse the probe in the first buffer pH 7 01 or 6 86 Press and hold the ON OFF key u2. USER MANUAL MI 105 Portable pH Temperature Meter a or ORS HOLD CAL Mi 105 pH temperature meter MARTINI instruments See ee MARTINI instruments 0 90 LYSOLIALLS GENERAL OPERATION The meter is supplied com plete with a 9V battery Remove the battery com partment cover on the back of the meter and in stall the battery while pay ing attention to its polarity e Connect the MA914BR 1 probe to the meter e Turn the instrument on by pressing the ON OFF key At start up the LCD shows the percentage of the remaining battery life for a few seconds and then the current measure ment e Always remove the electrode protective cap before taking any measurement If the elec trode has been left dry soak the tip bottom 2 5 cm in M10000 rinse solution for a few minutes e Immerse the tip 2 5 cm of the probe into the sample and stir gently e Read the pH value when the clock symbol stops blinking e The temperature reading can be displayed in C or F unit to select the desired scale press and hold the ON OFF key until TEMP and the current temperature unit are dis played on the secondary LCD Use the SET button to select the unit and then press the ON OFF key a couple of times to return to normal mode To activate the HOLD function keep pressed the HOLD key The measured value will be frozen on the display and the HOLD
3. accepted The secondary LCD shows the ESC message for 1 second and the meter returns to the normal mode To clear a previous calibration and reset to the default value press the SET key after entering the calibration mode and before the first point is accepted The secondary LCD shows the CLR message for 1 sec ond the meter resets to the default calibra tion and the CAL tag on the LCD disappears BATTERY REPLACEMENT The meter shows the remaining battery per centage every time it is switched on When the battery level is below 5 the battery symbol on the bottom left of the LCD lights up to indicate a low battery condition The meter is also provided with BEPS Battery Error Prevention System which automatically switches the meter off if the battery level is so low to cause erroneous readings It is recom mended to replace immediately the battery Turn the meter off re move the battery compart ment cover from the rear of the meter and replace the rundown 9V battery with a new one Install the battery while paying attention to its po larity and reattach the cover WARRANTY This instrument is warranted against defects in mate rials and manufacturing for a period of two years from the date of purchase Probe is warranted for 6 months If during this period the repair or replacement of parts is required where the damage is not due to negli gence or erroneous opera
4. d pH ten perature probe ENVIRONMENT O to 50 C 100 RH nex BATTERY 1 x QV alkaline included BATTERY LIFE approx 500 hours of use AUTO OFF after 8 minutes of non use DIMENSIONS 200 gt 85 gt 50 nm WEIGHT 260 g with battery The temperature range is limited to 80 C 176 F if using the MA914BR 1 probe
5. ntil CAL is displayed on the lower LCD R re iri ie Release the button andthe me message 7 01 pH USE or 6 86 pH USE for NIST X inr buffer set will be displayed The meter automatically recognizes the buffer value if a valid buffer is detected then its value is displayed onthe LCD me m together with the REC mes PT sage and the first calibra w mirr tion point is accepted gis NEES The meter will then require ce the second buffer by show ale ing the pH 4 01 USE mes 4 Wt sage Immerse the probe in iS LENE the second buffer solution pH 4 01 or 10 01 or 9 18 If a valid buffer is recognized the meter completes the cali bration procedure shows the OK 2 mes sage for a few seconds then returns to the normal mode pi Notes If no valid buffer is detected the LCD will show the WRNG message For exiting the calibration after the first point is accepted press the ON OFF button the LCD will show the OK 1 message for 1 second and then returns to the normal mode If using pH 4 01 or 10 01 or 9 18 buffer for the first calibration point the meter will exit the calibration mode after recognizing the buffer value and showing the OK 1 message for 1 second To quit the calibration procedure and return to the last data press ON OFF after en tering the calibration mode and before the first point is
6. tion by the user please return the parts to either distributor or our office and the repair will be effected free of charge Damages due to accidents misuse tampering or lack of prescribed maintenance are not covered ACCESSORIES MA914BR 1 Combination amplified pH Temperature probe with BNC amp RCA connectors and 1 m cable pH4 01 buffer solution 20 ml sachet 25 pcs pH6 86 buffer solution 20 ml sachet 25 pcs pH7 01 buffer solution 20 ml sachet 25 pcs pH9 18 buffer solution 20 ml sachet 25 pcs pH10 01 buffer solution 20 ml sachet 25 pcs M10004B M10006B M10007B M10009B M10010B MA9004 pH4 01 buffer solution 230 ml bottle MA9006 pH6 86 buffer solution 230 ml bottle MA9007 pH7 01 buffer solution 230 ml bottle MA9009 pH9 18 buffer solution 230 ml bottle MA9010 pH10 01 buffer solution 230 ml bottle MA9015 Electrode storage solution 230 ml bottle MA9016 Electrode cleaning solution 230 ml bottle M10000B_ Electrode rinse solution 20 ml sachet 25 pcs SPECIFICATIONS RANGE 2 00 to 16 00 pH 5 0 to 105 0 or 23 0 to 2210 F RESOLUTION 0 01 pH 0 1 C or 0 1 F ACCURACY 25 C 29 02 pH 9 5 C up to 60 C 1 C outside 11 F up to 140 F 42 F outside TYPICAL EMC DEVIATION 49 02 pH 30 2 C or 40 4 F TEMPERATURE COMPENSATION Autorratic from 5 to 80 C pH CALIBRATION Automatic 1 or 2 point PROBE included MA914BR1 amplifie
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