Milwaukee SM101 User manual

Milwaukee
WARRANTY:
This instrument is warranted from all defects in materi-
als and manufacturing for a period of two years from
the date of purchase.
The probe 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 change.
Note: We reserve the right to modify the design,
construction and appearance of our products without
advance notice.
Milwaukee
USER MANUAL
PORTABLE pH METER
MODEL: SM101
Smart pH Meter
OPERATION:
• The meter is supplied complete with a
9V battery. Slide off the battery compart-
ment cover on the back of the meter.
Install the battery while paying attention
to its 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 reacti-
vate 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 tempera-
ture knob to the
value of testing
solution (mea-
sured with help of
an accurate ther-
mometer).
• Immerse the tip (2.5 cm) of the pH elec-
trode into the sample and stir gently.
• After measurements, switch the
meter off and store the elec-
trode with a few drops of storage
solution in the protective cap.
CALIBRATION PROCEDURE:
A) Preparation:
Two reference solutions are required
1. pH 7.01 (MA 9007)
2. pH 4.01 (MA 9004) if you are
measur ing in acid range (pH0-pH7)
or pH 10.01 (MA 9010) if you are
measuring in alkaline range (pH7-
pH14).
Use two beakers for each reference so-
lution. 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 pH7.01 solution, then
immerse the pH electrode
into a pH7.01 buffer solu-
tion.
• Take the temperature of the
buffer solution with a ther-
mometer and set the
temperature knob to the
measured temperature (e.g.
15ºC).
• Adjust the OFFSET trimmer
(pH 7) on the fron panel,
with a small screwdriver
until the LCD shows the pH
value at the above tempera-
ture (see the pH versus
temperature chart).
E.g. in this case, if the tem-
perature is 15ºC, the meter
display should be adjusted
to read “pH 7.04”.
• Now rinse the pH electrode
in the first pH4.01 beaker,
then immerse it into the
second pH4.01 beaker.

Milwaukee
ISMIL101 11/2001
Follow the same procedure if using
pH10.01 solution.
• Adjust the SLOPE trimmer
(pH4/10) on the front panel,
with a small screwdriver, until
the LCD shows the pH value
at the above temperature (see
the pH versus temperature
chart).
E.g. in this case, if the tem-
perature is 15ºC, the meter
display should be adjusted to
read “pH 4.00”.
Calibration is now complete.
pH VERSUS TEMPERATURE CHART:
TEMP pH VALUES
ºC ºF
0 32 4.01 7.13 10.32
5 41 4.00 7.10 10.24
10 50 4.00 7.07 10.18
15 59 4.00 7.04 10.12
20 68 4.00 7.03 10.06
25 77 4.01 7.01 10.01
30 86 4.02 7.00 9.96
35 95 4.03 6.99 9.92
40 104 4.04 6.98 9.85
45 113 4.05 6.98 9.85
50 122 4.06 6.98 9.82
55 131 4.07 6.98 9.79
60 140 4.09 6.98 9.77
65 149 4.11 6.99 9.76
70 158 4.12 6.99 9.75
M10004B M10007B M10010B
MA9004 MA9007 MA9010
BATTERY REPLACEMENT:
When the battery be-
comes weak the meter
will display "V".
When the low battery in-
dicator appears, only a
few hours of battery life
remain. A low battery will
result in unreliable mea-
surements. It is
recommended to replace
the battery immediately.
Battery replacement
must only take place in a
non-hazardous area us-
ing an alkaline 9V battery.
Turn the meter off, slide
off the battery compartment cover at the rear
of the meter and replace the 9V battery with
a new one. Make sure the battery contacts
are tight and secure, seat the battery in its
compartment and insert the cover again.
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 solu-
tion, 220 mL bottle
MA9016 General cleaning solu-
tion, 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 fixing
kit
SPECIFICATIONS:
SM 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
through 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 145 x 80 x 40 mm
WEIGHT 220 g (with battery) meter only