Milwaukee SM500 User Manual

Milwaukee

USER MANUAL

PORTABLE

ORP METER

MODEL: SM500

Smart ORP Meter

ISMIL500 11/01

SPECIFICATIONS:

SM500

RANGE ±1000 mV
RESOLUTION 1 mV
ACCURACY (@25°C) ±5 mV
ORP ELECTRODE MA921B/1 (included)
ENVIRONMENT 0 to 50°C, 95% RH max.
BATTERY TYPE 9V alkaline (included)
BATTERY LIFE approximately 300 hours of use
DIMENSIONS 145 x 80 x 40 mm
WEIGHT 220 g (with battery) meter only

OPTIONAL ACCESSORIES:

M10000B Electrode rinse solution, 20 ml sachet (25 pcs)
MA9015 Electrode storage solution, 220 ml bottle
MA9020 200-275 mV ORP solution, 220 ml bottle
MA921B/1 Platinum ORP electrode with 1 m cable

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 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 dealer 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.

Milwaukee

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 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 in storage solution for a few
minutes to reactivate it.

• Connect the ORP electrode to the
BNC socket on the top of the meter.

• Immerse the tip (2.5 cm) of the ORP
electrode into the sample.

• Turn the instrument on by pressing
the ON/OFF key.

• Allow the reading to stabilize before
taking measurements.

• After use, switch the meter off and
store the electrode with a few drops
of storage solution in the protective
cap.

• The meter is factory calibrated. ORP
electrodes are inter-changeable and
no mV calibration is needed when
they are replaced.

MAINTENANCE:

• To correctly perfom a redox measurement, the surface of
the ORP electrode must always be clean. Use for this
purpose the M10000B rinse solution. If needed, brush the
Platinum tip with very fine abrasive paper.

• When not in use, the tip of the electrode should always be
kept moist and safe from any mechanical stress.

BATTERY REPLACEMENT:

When the battery becomes weak the meter will display "S".
When the low battery indicator appears, the battery has only

about 50 hours of working time left. A low battery will result in
unreliable measurements. It is recommended to replace the
battery immediately.

Battery replacement must only take place in a non hazardous
area using 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.