Xylem MULTI 3400 MULTI-PARAMETER METERS Manual de usuario descargar pdf (Pagina 39)

Multi 3400i Operation

Calibration evaluation After the calibration, the measuring instrument automatically evaluates

the current status of the calibration. The evaluation appears on the dis-

play.

Determining the

cell constant

You can determine the cell constant (conductivity measuring cell Tetra-

Con 325) as follows:

Display Cell constant [cm

-1

]

0.450 ... 0.500 cm

-1

Eliminate the error according to

chapter 6 W

HAT TO DO IF...

Outside the range

0.450 ... 0.500 cm

-1

1 Press the <CAL> key repeatedly until the status display

CAL CELL appears.

2 Press the <RUN/ENTER> key. The CAL display appears, as

well as

– the current, calibrated cell constant (with sensor symbol on

the display) or

– the fixed cell constant 0.475 1/cm (without sensor symbol

on the display). In this case, the measurement parameters

are initialized (see section 4.9 R

ESET).

3 Immerse the conductivity measuring cell in the control standard

solution, 0.01 mol/l KCI.

4 Press the <RUN/ENTER> key.

The AutoRead measurement to determine the cell constant

starts. The AR display indicator flashes until a stable signal is

reached. The cell constant determined is displayed. The mea-

suring instrument automatically stores the cell constants.

RCL

OO UpHUpH SalSal

Store

Auto

AutoCal DINAutoCal DIN

AutoCal TEC

LoBat

ARng

Tref20

Lin

nLF

SalSal

mg/lmg/l

mV/pHmV/pH

cmcm

°°

S/S/

cmcm

TDSTDS

mbarmbar

Time

Baud

Day.Month No.

Ident

Year

Time

Baud

Day.Month No.

Ident

Year

0077

cmcm

1/1/

Tref25

Cal

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 84 85

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Xylem MULTI 3400 MULTI-PARAMETER METERS Manual de usuario Pagina 39

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