progress, it does not resume the process and dis-
plays a "Download cancelled" error message. To
acknowledge this error, press the START/SET key.
8.5 Deleting Data from Memory
The report data in memory can be deleted only after all
welding reports were transferred, which is indicated by the
"Download completed" message. When the storage media
is unplugged, a "Delete Memory" message appears. If the
START/SET key is pressed at this point, a further confirma-
tion message "Delete Memory, sure?" is shown, which has
to be confirmed by pressing the START/SET key once again.
Then, the report data in memory are deleted.
8.6 Keeping Data in Memory
When the cable or storage media is unplugged, a "Delete
Memory" message is displayed. Press the STOP/RESET key
to keep the current report data in memory. They can then
be printed off once again.
Make a habit of handling the internal storage as
described at the beginning of Sect. 8, to maintain
data integrity and avoid any inadvertent deletion
Important
of the reports in memory.
9 Dedicated Welding Unit Information
9.1 Displaying Characteristics of the Welding Unit
The key technical information on the welding unit itself is
displayed by pressing the ð key at the "Enter Fitting Code"
screen. They are the software version, the serial number
of the unit, the date of the next scheduled maintenance,
and the number of currently available, unused reports. To
quit this screen, press the STOP/RESET key.
If the scheduled service is overdue, a service due message
appears on the screen as soon as the unit is plugged into
the mains or generator power supply. This message has to
be acknowledged by pressing START/SET.
9.2 Measuring Resistance
When the START/SET key was pressed to initiate a welding
process, the resistance value of the fitting is measured and
compared to the value entered as part of the read fitting
code. If the gap between the two values is smaller than
the acceptable tolerance given in the code, the welding
18
EN
HÜRNER HST 300 HP 2.0 User's Manual
H Ü R N E R S c h w e i s s t e c h n i k G m b H
Nieder-Ohmener Str. 26
35325 Mücke, Germany
Version April 2016