Remove the battery housing and replace the battery insuring the proper polarity.
XI.2 Resetting the instrument
Changing the battery will automatically reset the instrument.
Remove the battery for approx. 30 sec. before replacing it again.
XI.3 In case of problem
In case of wrong function of the instrument, remove the battery at least 30 seconds to reset.
XI.3.1 Buttons don't work
Check first if the buttons are locked ('C' will appear on the display pushing [mode] button).
If 'C' appears, send <KEY1> to the instrument or reset it (see XI.2).
If the instrument is connected to a peripheral equipement requesting continuously the datas, the button are not working, the priority is given to the OPTO-RS
transmission.
Stopping the request will make the buttons work again.
XI.3.2 The instrument transmits continuously
The transmission mode <OUT1> is being active.
Deactivate this mode transmitting <OUT0>.
If the peripheral equipment can't transmit data (i.e. printer), reset the instrument (see XI.2).