pH 1970i
Operation
15
ba75690e01
01/2007
4
Operation
4.1
Switching on the measuring instrument
Note
The measuring instrument has an energy saving feature to avoid un-
necessary battery depletion. The energy saving feature switches the
measuring instrument off if no key has been pressed for an hour. The
energy saving feature is not active when the AutoStore function is ac-
tive.
The energy saving feature is also not active
z
if the power is supplied by the plug-in power supply,
z
if the communication cable and a PC with a running communication
program are connected,
z
if the recorder cable is connected,
z
if the printer cable is connected (for external printers).
1
Press the
<ON/OFF>
key.
The display test appears briefly on the display.
Subsequently, the slope and asymmetry used appear for ap-
prox. one second one after the other. In addition, the calibration
procedure of the last calibration is shown (
AutoCal TEC
or
Au-
toCal
or no display in the delivery state or following initializa-
tion).
The measuring instrument then automatically switches to the
measuring mode that was last selected.
