Version September 2022
8
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
3
Service and Repair
3.1 General
As the product is used in applications that are sensitive to
safety considerations, having it serviced and repaired only
by trained, specialized staff is highly recommended. Thus,
constantly high standards of operation quality and safety
are maintained. Feel free to request information on our
authorized service partner in your area at the address in
Sect. 13.
For damage or defects to the product that are the
result of unprofessional service and/or repair, includ-
ing any consequential damage that may arise, we
disclaim any warranty and liability.
When serviced, the unit is upgraded automatically to the
technical specifications of the product at the moment it is
serviced, and we grant a three-month functional warranty
on the serviced unit.
We recommend having the product serviced at least every
twelve months.
Any provisions in the law pertaining to an electrical safety
inspection have to be complied with.
3.2 Transport, Storage, Shipment
The product ships in a transport box. The product should
be stored in this box, protects the product from humidity
and environmental agents.
When sending the product, it should be placed into the
transport box at all times.
4
Principles of Operation
The HST 300 Manual USB 2.0 allows welding electrofusion
fittings that require of welding voltage from 8 V to 48 V.
Every fitting has its own, specific welding voltage and
welding time. For a proper welding operation, these data
have to be entered manually.
The microprocessor-controlled HST 300 Manual USB 2.0
Welding Unit controls and monitors the welding process in
a fully automated fashion. While doing so, the sensor on
