Entering Welding Voltage And Time; Starting The Welding Process; Welding Process; End Of Welding - Hürner HST 300 Manuel Utilisateur

When the fitting is connected, the "No Contact" message
(see Display 2) disappears.
5.3

Entering Welding Voltage and Time

After the fitting was connected to the welder, Display 3
shows on the screen.
Use the arrow keys ï, ð, ñ, ò to set the welding voltage
and the welding time, according to the fitting manufac-
turer's instructions, then press the START/SET key to confirm
your input. The "Start ?" message then displayed indicates
that the unit is ready for welding.
5.4

Starting the Welding Process

After entering the parameters for the welding operation,
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.
5.5

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.
5.6

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.
5.7

Aborted Welding Process

The welding process has failed if a plain-text error is dis-
played on the screen and the audible signal buzzes by in-
tervals, yet continuously. An error has to be acknowledged
by pressing the STOP/RESET key.
5.8

Cooling Time

The cooling time as given in the fitting manufacturer's in-
structions has to be respected. Note that for that time the
pipe fitting joint which is still warm must not be subjected
to an external force.
10
EN
HÜRNER HST 300 Manual USB 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
Voltage/Time
U= 40 V
Start ?
Temp.: 20°C
HST 315mm
SAT 40.00V
Act. Time: 56sec
Nom. Time: 90sec
35.00V 1.57Ω 22.29A
t= 1000 s
Display 3
58s
0.80Ω
Display 4
Display 5
Version April 2019