Xylem handylab multi 12 - Manual (Page 17)

handylab multi 12 Operation
17 ba75371e03 11/2009
4 Operation
4.1 Switching on the measuring instrument
Measuring mode
when switching on
Note
The measuring instrument has an energy saving feature to avoid unneces-
sary battery depletion. The energy saving feature switches the measuring in-
strument off if no key has been pressed for an hour.
The energy saving feature is not active
z if the power is supplied by the plug-in power supply,
z if the AutoStore function is active,
z if the communication cable and a PC with a running communication pro-
gram are connected,
z if the printer cable is connected (for external printers).
AutoRange
measurement
range selection
There are several measuring ranges available for both oxygen and conduc-
tivity measurements. As a rule, the measuring instrument is in the measuring
range with the highest possible resolution. If a measuring range is exceeded,
AutoRange causes the measuring instrument to change automatically to the
next higher measuring range.
The AutoRange function is always active with oxygen and conductivity mea-
surements and cannot be switched off.
Note
The measuring ranges for oxygen and conductivity measurements can be
found in section 1.6 T
ECHNICAL DATA .
1 Press the key.
The display test appears briefly on the display.
After this, the measuring instrument automatically switches to
the measuring mode.
Connected sensor Measuring mode
No sensor or pH/ORP
electrode pH or ORP measurement (depending on
the last selected setting)
D. O. probe or conductivity
measuring cell Last selected measuring mode
2 sensors of any type Last selected measuring mode