Check-Out And Operation; Turning The Welding Unit On; Connecting The Fitting - Hürner HST 300 Junior+ 2.0 Manuel Utilisateur

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• determines welding duration depending on ambient
temperature.
The latter is done by the temperature sensor located on
the welding cable, which checks the ambient temperature
at regular intervals.
The unit monitors the characteristics of its power supply
continuously. If one of these is out of tolerance, welding
is aborted or cannot be started.
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Check-out and Operation

• To operate the welding unit, be sure that it is set on a
proper, level surface.
• Be sure that power supply/generator protection is 16 A
(slow blow).
• Plug the power supply cord into the mains power
supply or the generator.
• Read and comply with the User's Manual of the gen-
erator, if applicable.

5.1 Turning the Welding Unit on

After connecting the power supply cable to mains power
or a generator, turn the welding unit on using the On/Off
switch. This causes Display 1 to show.
Then the screen changes to Display 2.
CAUTION in case of System Errors!
If during the auto-test that the unit performs at
start-up, an error is detected, a "System Error" mes-
Caution sage shows on the display. When this happens, the
welding unit has to be disconnected immediately
from the power suppy and the fitting, and it has
to be shipped to the manufacturer for repair.

5.2 Connecting the Fitting

Connect the connection terminals to the fitting and check
for proper contact. Use terminal adapters if needed. The
contact surfaces of the cable connection terminals or adapt-
ers and the fitting have to be clean. Dirty terminals may
lead to improper welding and also to overheated and fused
connection terminals. Protect the cable connectors against
getting dirty at all times. Terminals and push-on adapters
should be considered consumables and, therefore, have to
be checked before every welding operation and replaced
if damaged or dirty.
Version April 2016 HÜRNER HST 300 Junior + 2.0 User's Manual
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HUERNER
HST 300 Junior+ 2.0
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Display 1
Enter Fitting Code
14:32:11 21.10.12
Inp.Volt. 230V 50Hz
No Contact
Display 2
EN
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