Note: When the calibration procedure is
completed, the CAL tag is turned on.
• To quit the procedure and return to the
last calibration data, after entering the
calibration mode press the ON/OFF button.
The secondary LCD displays “ESC” for 1
second and then the meter returns to the
normal measurement mode.
• To reset to the default values and clear a
previous calibration, press the SET/HOLD
button after entering the calibration mode
and before the first point is accepted. The
secondary LCD displays “CLR” for 1
second, the meter resets to the default
calibration and the CAL tag on the LCD
turns off.
SETUP
Setup mode allows the selection of
temperature (°C or °F) and pH buffer set for
calibration.
To enter the Setup mode, press the
ON/OFF button until “CAL” on the
secondary LCD is replaced by “TEMP” and
the current temperature unit (e.g. TEMP
°C). Then:
• for °C/°F selection: use the SET/HOLD
button; then press the ON/OFF button once
to enter the buffer set selection or twice to
return to the normal measurement mode.
• to change the calibration buffer set: after
setting the temperature unit, press ON/OFF
once and select the buffer set (“pH 7.01
BUFF” or “pH 6.86 BUFF” for NIST) by
using the SET/HOLD button. Press
ON/OFF to return to the normal
measurement mode.
ELECTRODE REPLACEMENT
• Remove the protective cap and unscrew
the plastic ring on the top of the electrode.
• Pull out the MI56P electrode and replace
it with a new one.
• Make sure the gaskets are in place before
screwing back the ring.
BATTERY REPLACEMENT
When the batteries become weak, the
battery symbol on the LCD will light up to
advise that only a few hours of working time
is remaining. The meter is also provided
with BEPS (Battery Error Prevention
System), which avoids any erroneous
readings due to low battery level by
automatically switching the meter off.
It is recommended to replace the batteries
immediately.
To replace the batteries unscrew the
battery compartment cap and replace all
four 1.5V batteries while paying attention to
their polarity. Make sure the gasket is in
place before screwing back the cap.
Batteries should only be replaced in a
nonhazardous area using the battery type
specified in this instruction manual.
ACCESSORIES
MI 56P Replaceable electrode for pH 55 & pH
56
M10004B pH 4.01 buffer, 20 ml sachet, 25 pcs.
M10007B pH 7.01 buffer, 20 ml sachet, 25 pcs.
M10010B pH 10.01 buffer, 20 ml sachet, 25
pcs.
MA9004 pH 4.01 buffer, 230 ml bottle
MA9006 pH 6.86 buffer, 230 ml bottle
MA9007 pH 7.01 buffer, 230 ml bottle
MA9009 pH 9.18 buffer, 230 ml bottle
MA9010 pH 10.01 buffer, 230 ml bottle
MA9015 Electrode storage solution, 230 ml
MA9016 Electrode cleaning solution, 230 ml
M10000B Electrode rinse solution, 20 ml sachet,
25 pcs.
WARRANTY
This instrument is warranted against
defects in materials 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 negligence or
erroneous operation by the user, please
return the parts to either distributor or our
office and the repair will be done free of
charge.
Damages due to accidents, misuse,
tampering or lack of prescribed
maintenance are not covered. Milwaukee
instruments reserves the right to make
improvements in design, construction and
appearance of its products without advance
notice.
SPECIFICATIONS
RANGE -2.0 to 16.0 pH (pH 55)
-2.00 to 16.00 pH (pH 56)
-5.0 to 60.0°C / 23.0 to 140.0°F
RESOLUTION 0.1 pH (pH 55)
0.01 pH (pH 56)
0.1°C / 0.1°F
ACCURACY (@25°C) ±0.1 pH (pH 55)
±0.05 pH (pH 56)
±0.5°C / ±1°F
TYPICAL EMC DEVIATION
±0.1 pH (pH 55)
±0.02 pH (pH 56)
±0.3°C / ±0.6°F
TEMPERATURE COMPENSATION
Automatic, from -5 to 60°C
CALIBRATION Automatic, 1 or 2 points
with 2 sets of memorized buffers (pH 4.01,
7.01, 10.01 or 4.01, 6.86, 9.18)
PROBE Replaceable MI 56P
ENVIRONMENT -5 to 50°C; 100% RH
max.
BATTERY TYPE 4 x 1.5V; IEC LR44, A76
BATTERY LIFE approx. 300 hours of use
AUTO-OFF after 8 minutes of non-use
DIMENSIONS 200 x dia 38 mm
WEIGHT 100 g
