Xylem MULTI 3500i HANDHELD MULTIPARAMETER METERS Uživatelský manuál stáhnout pdf (Strana 31)

Multi 3500i Operation

4.4.4 Settings for pH and ORP measurements

Overview The following settings are possible for pH and ORP measurements:

z Resolution

z Calibration interval

z Buffers for calibration

z Unit for slope

z Calibration record (display)

Settings The settings are made in the measuring menu of the pH/ORP measure-

ment. To open the settings, activate the relevant measuring window in

the measured value display and press the <MENU/ENTER> key short-

ly. After completing the settings, switch to the measured value display

with <M>.

Menu item Possible

setting

Description

Calibration /

Calibration inter-

val

1 ... 999 d Calibration interval for the pH elec-

trode (in days).

The measuring instrument reminds

you to calibrate regularly by the

flashing sensor symbol in the mea-

suring window.

Calibration /

Calibration type

TEC

NIST/DIN

ConCal

Buffer sets to be used for pH cali-

bration.

For details, see section 4.4.5.

Calibration / Unit

for slope

mV/pH

Unit of the slope.

The % display refers to the Nernst

slope of

-59.16 mV/pH (100 x determined

slope/Nernst slope).

Calibration /

Calibration

record

- Displays the calibration record of

the last calibration.

Man. tempera-

ture

-20 ...

+130 °C

Entry of the manually determined

temperature. For measurements

without temperature sensor only.

Reset - Resets all sensor settings to the

delivery condition (see

section 4.10.1).

High resolution On

Off

Resolution of the pH display:

On = 0.001

Off = 0.01

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 106 107

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