Metrohm 827 pH lab Bedienungsanleitung PDF herunterladen (Seite 20)

3.2 All key functions at a glance

12 826/827 pH meter, Instructions for Use

3.2 All key functions at a glance

The functions of all the keys are described below both for the measured

value display and the menu display:

Key Measured value display Menu display

On/Off

• The < > key switches the instru-

ment on and off.

• After switching-on the pH meter is in

the initial state of the last mode to

have been used.

On/Off

• The < > key switches the instru-

ment off at any time.

Starting calibration

• The <CAL> key starts the pH cali-

bration (in mode pH only).

Acknowledging messages

• Displayed messages are normally

acknowledged with <QUIT> (Ex-

ceptions: see Section 8.2).

• If the cause of the message has not

been remedied, then it will appear

again at the next check.

Canceling working step

• In menus <QUIT> causes a jump

to the next higher level without ac-

cepting the alterations.

Menu selection

•

The menu is being changed with the

arrow keys <



> and <



Selecting predefined entries

• For menu parameters which offer a

fixed choice of settings (recogniza-

ble by the final colon) the selection

list can be viewed with the arrow

keys. The arrow determines the se-

lection direction.

Cursor control for text input

• The cursor is moved to that position

which needs to be altered.

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