Grundfos DIT-M Installation And Operating Instructions Manual Download Page 16

Page: 16 / 36

English (GB)

User polynomials

Up to 25 user polynomials can be entered and stored.
The software allows the user to apply a polynomial of up to the
5th degree:
y = A + Bx + Cx

+ Dx

+ Ex

+ Fx

If only a Polynomial of a lower degree is necessary, the other
coefficients are specified as zero; for example, for a 2nd degree
polynomial D, E, F = 0.
The values of the coefficients A, B, C, D, E, F must be entered in
an academic notation with a maximum of 6 decimal places, for
example 121.35673 = 1.02

Entering a user polynomial:

Note:

To measure further standard reagents,
perform as described above.
The minimum of measured standard
reagents is 2.
The maximum of measured standard
reagents is 14 (S1 to S14).
If all required standard reagents or the
maximum amount of 14 standard reagents
have been measured, press the [Store] key.
This display appears.
The photometer returns automatically to the
"Mode" menu.
Now the concentration is stored in the
photometer and can be recalled by entering
its method number or selecting it from the
displayed method list.

Note

Save all your concentration data in a written form
because in case of power outage (e.g. changing the
battery) all concentration data will be lost and must
be entered again.

Press the [Mode] key.

Press the [Shift] and [6][5] keys.

Confirm with the

key.

This display appears.
Enter a method number in the range from
800 to 824 by pressing the appropriate
number keys, such as [Shift] and [8][0][0].

Confirm with the

key.

Note:

If the entered number has already been
used to save a polynomial, the display
shows the query to the left.
• To return to method number query, press

the [Shift] and [0] or [Esc] keys.

• To start the entry mode, press the [Shift]

and [1] keys.

Select the required wavelength by pressing
the appropriate number key, such as [Shift]
and [2] for 560 nm.

Store

S2 accepted
S3: + ________

| ESC | F1 | Store

stored!

Shift

<User polynoms>
choose No.: ______
(800 - 824)

Mode

Overwrite polynom?
YES: 1, NO: 0

wavelength:
1: 530 nm
2: 560 nm
3: 610 nm

4: 430 nm
5: 580 nm
6: 660 nm

• Press the arrow keys or to change

between plus and minus sign.

• Enter the data of the coefficient A

including decimal point, such as [Shift]
and [1][.][3][2] for 1.32.

• To reset input, press the [F1] key.

Confirm with the

key.

• To change between plus and minus sign,

press the arrow keys or .

• Enter the exponent of the coefficient A,

such as [Shift] and [3].

Confirm with the

key.

Successively the photometer queries
the data for the other coefficients
(B, C, D, E and F).

Note:

If zero [0] is entered for the value of the
coefficient, the input of the exponent is
omitted automatically.

Confirm every input with the

key.

Enter measurement ranges
from -2600 to +2600 mAbs.
• To change between plus and minus sign,

press the arrow keys or .

• Enter the values in absorbance (mAbs)

for the upper limit (Max) and the lower
limit (Min).

Confirm every input with the

key.

To select the required unit, press the arrow
keys

or .

Confirm with the

key.

Select the required resolution by pressing
the appropriate number key, such as [Shift]
and [3] for 0.01.

Note:

Please enter the required resolution
according to the photometer settings:

This display appears.
The photometer returns automatically to the
"Mode" menu.
Now the polynom is stored in the photometer
and can be recalled by entering its method
number or selecting it from the displayed
method list.

Note

Save all your polynomial data in a written form
because in case of power outage (e.g. changing the
battery) all polynomial data will be lost and must be
entered again.

<User polynoms>
y = A+Bx+Cx2+Dx3+

A: + _______

Ex4+Fx5

A: 1.32____ E+____

B: +_______

Measurement range
Min. mAbs: +_______
Max. mAbs: +_______

choose unit:
>>

mg/l
g/l
mmol/l
mAbs

g/l

E
A
%

choose resolution:
1: 1
2: 0.1
3: 0.01
4: 0.001

stored!