Self-Monitoring Functions Overview; Errors During Data Input; No Contact; Low Voltage - Hürner HST 300 aquatherm 2.0 Manuel Utilisateur

a q u a t h e r m G m b H
Biggen 5
57439 Attendorn, Germany
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Self-Monitoring Functions Overview

8.1

Errors During Data Input

8.1.1 No Contact

There is no properly established electric contact between the welding
unit and the fitting (check push-on terminal on fitting), or the heater
coil is defective.

8.1.2 Low Voltage

The input voltage is below 175 volts. Adjust generator output volt-
age.

8.1.3 Overvoltage

The input voltage is over 290 volts. Decrease generator output volt-
age.

8.1.4 Overheated

The transformer temperature is too hot. Let the welding unit cool
down for about 1 hour.

8.1.5 System Error

CAUTION!
The welding unit has to be disconnected immediately from both the
power supply and the fitting. The auto-test has detected an error in
the system. The unit must no longer be operated and has to be sent
to an approved shop for check and repair.

8.1.6 Temperature Error

The ambient temperature measured is outside the operating range of
the welding unit, i.e., below – 20°C (– 4°F) or over + 60°C (+ 140°F).

8.1.7 Temperatur Sensor Defective

The ambient temperature sensor on the welding cable is damaged or
defective.

8.1.8 Clock Error

The internal system clock works improperly or is defective. Reset it, or
send the welding unit to the manufacturer for check and service.
8.2

Errors During Welding

All errors that occur while welding is in progress are also indicated
by an audible alarm.

8.2.1 Low Voltage

The input voltage is below 175 volts. If the error condition persists for
longer than 15 seconds, the welding process will be aborted. If the
voltage goes down below 170 volts, the welding process will abort
immediately.

8.2.2 Overvoltage

The input voltage is over 290 volts. If the error condition persists for
longer than 15 seconds, the welding process will be aborted.

8.2.3 Resistance Error

The resistance value of the connected fitting is out of the read toler-
ance.
Version July 2014 HST 300 aquatherm 2.0 User's Manual
11
EN