Version September 2018
EN
11
HÜRNER HST 300 Print 315 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
the showing ohm value is o.k., a resistance error
may still be detected (see Sect. 9.2). Only when
the welding process starts, the display shows the
actual, measured welding parameters.
The “Start ?” message means that the unit is ready to start
the welding process. Check the read data and if you see
that they are erroneous, delete them by pressing the STOP/
RESET key. The read data are also deleted if the welding
unit is disconnected from the fitting.
5.5 Starting the Welding Process
Info
After the fitting bar code was read, the input of
all traceability data that were enabled in the con-
figuration menu (see Sect. 10.2), is requested by
the system.
After reading or entering the fitting code, the welding
process can be started using the START/SET key, when the
“Start ?” message is displayed and there is no indication
of a problem.
Pressing the START/SET key will trigger a confirmation mes-
sage “Pipe treated?,” which in turn requires a confirmation
with the START/SET key to start the welding proper.
5.6 Welding Process
The welding process is monitored for its entire duration
applying the welding parameters contained in the fitting
code. The welding voltage, the resistance, and the weld-
ing current are displayed in the lower line of the screen.
5.7 End of Welding
The welding process ends successfully if the actual weld-
ing time corresponds to the nominal welding time and the
buzzer can be heard twice.
5.8 Aborted Welding Process
The welding process has failed if a plain-text error is dis-
played on the screen and the audible signal buzzes con-
tinuously. An error has to be acknowledged by pressing
the STOP/RESET key.
5.9 Cooling Time
The cooling time as given in the fitting manufacturer’s
instructions has to be respected. If the bar code provided
by the fitting manufacturer contains cooling time data, it
Display 4
Start ?
Temp.: 20°C
HST 315mm 58s
SAT 40.00V 0.80Ω
Display 5
Act. Time: 56sec
Nom. Time: 90sec
35.00V 1.57Ω 22.29A