Martini Instruments MI 408 Manual de usuario

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 infor-

mation 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

LightSource Tungstenlamp

LightDetector Silicon Photocell and 525 nm

narrowbandinterferencefilter

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-Shutoff 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.

GUIDETODISPLAYCODES:

This prompt appears for 1

second each time the instru-

ment is turned on.

The dashes “- - -” indicates

that the meter is in a ready

state and zeroing can be per-

formed.

Sampling In Progress. Flash-

ing “SIP” prompt appears each

time the meter is performing a

measurement.

“-0.0-”, the meter is in a ze-

roed state and measurement

can be performed.

The blinking "BAT" indicates

that the battery voltage is get-

ting 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 measure-

ment. Please check the

preparation of the zero

cuvet.

•“L Hi”, there is too much

light to perform a measure-

ment. Please check the

preparation of the zero

cuvet.

On sample reading

•“-SA-”, there is too much

light for the sample mea-

surement. 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 instruc-

tion 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 cor-

rect 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 concentra-

tion 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 mate-

rials 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 negli-

gence 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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