Martini Instruments Mi 160, Инструкция по эксплуатации

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Instruction Manual Mi 160 Bench Meter
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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,
10, 100 and 1000 ppm.
In SETUP menu, select the proper ion charge.
Note Note
Note Note
Note: If “UndF” option is selected in SETUP menu, calibration must be performed in two
points, otherwise “----” will be displayed on the LCD if exiting calibration after
accepting the first used standard.
• Pour small quantities of the standard solutions into clean beakers. If possible, use plastic beakers
to minimize any EMC interferences. For accurate calibration use two beakers for each standard
solution: one to rinse the electrode and one for calibration.
• Select ISE measurement range by pressing the RANGE key. Remove the protective cap from
the ISE electrode
TWO-POINT CALIBRATION TWO-POINT CALIBRATION
TWO-POINT CALIBRATION TWO-POINT CALIBRATION TWO-POINT CALIBRATION
• Immerse the ISE electrode approximately 4 cm (1½”) into the selected solution and stir gently.
• Press the CAL key. The primary LCD will display the ppm value using the current offset and
slope. The “CAL”, “BUFFER”, “1”, “CALIBRATION” tags will appear and the “0.010”
ppm standard will be displayed on the secondary LCD.
• If necessary, press the UP and DOWN arrow keys to select a different standard value.
• The “WAIT” tag will blink on the LCD until the reading is stable.