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  9. Milwaukee MW101 User manual

Milwaukee MW101 User manual

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Milwauke
e
WARRANTY:
This instrument is warranted from all defects in materials
and manufacturing for a period of two years from the
date of purchase.
The electrode is warranted for a period of six
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 effected free of charge.
Note: We reserve the right to modify the design,
construction and appearance of our products
without advance notice.
Milwauke
e
USER MANUAL
PORTABLE pH METER
MODEL: MW101
Smart pH Meter
OPERATION:
• The meter is supplied complete with a 9V
battery. Slide off the battery compartment
cover on the back of the meter. Install the
battery into the battery clip connector while
observing polarity.
• Always remove the electrode protective
cap before taking any measurement. If
the electrode has been left dry, soak the
tip (bottom 2.5 cm) in rinse solution
(M10000B) for a few minutes to reactivate
it.
• Connect the pH electrode
to the BNC socket on
the top of the meter.
• Turn the instrument on
by pressing the ON/OFF
key.
• Make sure that the meter has been
calibrated before taking any measurements
(see Calibration Procedure).
• Set the temperature knob
to the value of testing
solution (measured
with help of an accurate
thermometer).
• Immerse the tip (2.5 cm)
of the pH electrode into
the sample and stir
gently.
• After completing measurements,
switch the meter off and store
the electrode with a few drops
of storage solution (MA9015)
in the protective cap.
CALIBRATION PROCEDURE:
A) Preparation:
Two calibration buffers are required
1. pH 7.01 (MA9007)
2. pH 4.01 (MA9004) if you are measuring
in acid range (pH 0 - pH 7) or pH 10.01
(MA9010) if you are measuring in
alkaline range (pH 7 - pH 14).
Use two beakers for each pH buffer. One
beaker for rinsing the electrode, the other
for calibration.
Use a thermometer with 1ºC accuracy to
measure the temperature of calibration
solution.
B) Procedure:
• Remove the protective cap
from the electrode. Rinse
the tip of the electrode with
some pH 7.01 solution, then
immerse the pH electrode
into a pH 7.01 buffer solution.
• Take the temperature of
the buffer solution with a
thermometer and set the
temperature knob to the
measured temperature (e.g.
15ºC).
• Adjust the OFFSET trimmer
(pH 7) on the front panel, with
a small screwdriver until the
LCD shows the pH value at
temperature of the buffer (see
the pH versus temperature
chart).
E.g. in this case, if the
temperature is 15ºC, the
meter display should be
adjusted to read “pH 7.04”.
• Now rinse the pH electrode
in the first pH 4.01 beaker,
then immerse it into the
second pH 4.01 beaker or
follow the same procedure
if using pH 10.01 buffer.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
Milwauke
e
ISTMW101 01/10
• Adjust the SLOPE trimmer
(pH4/10) on the front panel,
with a small screwdriver,
until the LCD shows the
pH value of the buffer at the
temperature of measurement
(see the pH versus temperature
chart).
E.g. in this case, if the
temperature is 15ºC, the
meter display should be
adjusted to read “pH 4.00” (or pH 10.01
would be adjusted to 10.12 pH).
Calibration is now complete.
pH VERSUS TEMPERATURE CHART:
BATTERY REPLACEMENT:
When the battery
becomes weak the
meter will display
“”.
When the low battery
indicator appears,
only a few hours of
battery life remain.
A low battery will
result in unreliable
measurements.
Prompt battery
replacement is
required.
Battery replacement
must only take place
in a non-hazardous area using an alkaline
9V battery.
Turn the meter off, slide the battery
compartment cover located at the rear of
the meter off and replace the 9V battery
with a new one. Make sure the battery
contacts are fully engaged in the connector,
seat the battery in its compartment and
replace the cover.
SPECIFICATIONS:
MW 101
RANGE 0.00 to 14.00 pH
RESOLUTION 0.01 pH
ACCURACY (@25°C) ±0.02 pH
TEMPERTURE Manual setting
COMPENSATION 0 to 50ºC
CALIBRATION Manual, 2-point
with use of Offset and Slope trimmers
pH ELECTRODE MA911B/1 (included)
ENVIRONMENT 0 to 50°C, 95% RH max.
BATTERY TYPE 1 x 9V alkaline (included)
BATTERY LIFE approx. 70 hours of use
DIMENSIONS 143 x 80 x 32 mm
WEIGHT 220 g (with battery) meter only
PMETSEULAVHp
C°F°4009AM7009AM0109AM
02310.431.723.01
51400.401.742.01
010500.470.781.01
519500.440.721.01
028600.430.760.01
527710.410.710.01
036820.400.769.9
535930.499.629.9
0440140.489.658.9
5431150.489.658.9
0522160.489.628.9
5513170.489.697.9
0604190.489.677.9
5694111.499.667.9
0785121.499.657.9
OPTIONAL ACCESSORIES:
MA9004 pH4.01 buffer solution,
220 mL bottle
MA9007 pH7.01 buffer solution,
220 mL bottle
MA9010 pH10.01 buffer solution,
220 mL bottle
MA9015 Electrode storage solution,
220 mL bottle
MA9016 General cleaning solution,
220 mL bottle
M10000B Rinse solution, 20 mL
sachet (25 pcs.)
MA911B/1 pH electrode with BNC
connector and 1 m cable
MA950 Portable meter wall
mounting kit
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com