USER MANUAL
MI 408
Iron High
Range Meter
Dear Customer,
Thank you for choosing a Martini product. This
manual will provide you with the necessary information for the correct use of the instrument.
Please read it carefully before using the meter.
This instrument is in compliance with directives.
Range 0.00 to 5.00 mg/L Fe
Resolution 0.01 mg/L
Precision ±0.03 mg/L @ 1.50 mg/L
Light Source Tungsten lamp
Light Detector Silicon Photocell and 525 nm
narrow band interference filter
Method Adoption of the USEPA
method 315 B and Standard
method 3500 - Fe B
Environment 0 to 50°C (32 to 122°F);
100% RH max.
Battery Type 1 x 9 volt
Auto-Shut off After 10' of non-use
Dimensions 192 x 104 x 52 mm
(7.5 x 4.1 x 2”)
Weight 380 g
SPECIFICATIONS:
ISTMI408 03/05
MEASUREMENT PROCEDURE:
1• Turn the meter on by pressing ON/OFF.
2• When the LCD displays “- - -”,
the meter is ready.
3• Fill the cuvet with 10 mL of
unreacted sample, up to the
mark, and replace the cap.
4• Place the cuvet into the holder
and ensure that the notch on
the cap is positioned securely
into the groove.
5• Press ZERO and “SIP” will blink
on the display.
6• After a few seconds the dis-
play will show “-0.0-”. The
meter is now zeroed and
ready for measurement.
7• Remove the cuvet. Open it.
8• Add 8 drops of Fe-0 reagent and shake
gently.
9• Reinsert the cuvet into the
holder and ensure that the
notch on the cap is positioned
securely into the groove.
10• Press and hold READ for 3
seconds and the display will
show the countdown prior to
the measurement.
Alternatively, wait for 5 minutes
and just press READ. In both
cases “SIP” will blink during
measurement.
11• The instrument directly displays
concentration in mg/L of iron.
Interferences
• Alkalinity above 1,000 mg/L (CaCO3) will
slow down color development. To resolve
this neutralize the sample with diluted HCl.
• Calcium (Ca2+) above 1,000 mg/L (CaCO3)
• Magnesium (Mg2+) above 10,000 mg/L
(CaCO3).
• Molybdate, Molybdenum above 25 mg/L
• High Sulfide (S2+) concentration.
• Silica (SiO2) above 100 mg/L may slow
down color development.
GUIDE TO DISPLAY CODES:
This prompt appears for 1
second each time the instrument is turned on.
The dashes “- - -” indicates
that the meter is in a ready
state and zeroing can be performed.
Sampling In Progress. Flashing “SIP” prompt appears each
time the meter is performing a
measurement.
“-0.0-”, the meter is in a zeroed state and measurement
can be performed.
The blinking "BAT" indicates
that the battery voltage is getting low and the battery needs
to be replaced.
“-bA-”, the battery is dead and
must be replaced. Once this
indication is displayed, the
meter will lock up. Change the
battery and restart the meter.
“Conf”, the meter has lost its
configuration. Contact your
dealer or the nearest Martini
Customer Service Center.
ERROR MESSAGES
On zero reading
• Blinking “-0.0-” indicates that
the zeroing procedure failed
due to a low signal-to-noise
ratio. In this case press ZERO
again.
• “no L”, the instrument can-
not adjust the light level.
Please check that the
sample does not contain
any debris.
• “L Lo”, there is not enough
light to perform a measurement. Please check the
preparation of the zero
cuvet.
• “L Hi”, there is too much
light to perform a measurement. Please check the
preparation of the zero
cuvet.
On sample reading
• “-SA-”, there is too much
light for the sample measurement. Please check if
the right sample cuvet is
inserted.
• “Inv”, the sample and the
zero cuvet are inverted.
• “ZErO”, a zero reading was
not taken. Follow the instruction in the measurement
procedure for zeroing the
meter.
BATTERY REPLACEMENT
Battery replacement must only take place in a
non-hazardous environment.
Simply rotate the battery cover on the back of
the meter.
Detach the battery from the terminals and
attach a fresh 9V battery while
paying attention to the correct polarity. Insert the
battery and replace
the cover.
• Under range. A blinking
“0.00” indicates that the
sample absorbs less light
than the zero reference.
Check the procedure and
make sure you use the
same cuvet for reference
(zero) and measurement.
• A flashing value of the
maximum concentration
indicates an over range
condition. The concentration of the sample is
beyond the programmed
range: dilute the sample
and re-run the test.
ACCESSORIES:
MI508-100 Iron high range reagent
(100 tests)
MI0001 Glass cuvets (2 pcs)
MI0002 Caps for cuvets (2 pcs)
MI0003 Stoppers for cuvets (2 pcs)
MI0004 Tissue for wipping cuvets
(4 pcs)
MI0005 9V battery (1 pc)
WARRANTY
This instrument is warranted against defects in materials and manufacturing for a period of two years
from the date of purchase.
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 meter to either distributor or our office in
the original packing and the repair will be free of
charge.
Damages due to accidents, misuse, tampering or
lack of prescribed maintenance are not covered.
ISTMI408 03/05
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