Measuring Resistance; Overheating Switch; Indication Of Power Supply Failure At The Last Welding; Configuring The Welding Unit - TEGA 4000-S Manuel Utilisateur

14
ing the ð key down at the "Enter Fitting Code" screen. They are the software
version, the (serial) number of the unit, the date of the next scheduled
maintenance, and the number of currently available, unused reports.
If the scheduled service is overdue, a service due message appears on the
screen as soon as the unit is plugged into the mains or generator power
supply. This message has to be acknowledged by pressing START/SET.
9.2

Measuring Resistance

When the START/SET key was pressed to initiate a welding process, the
resistance value of the fitting is measured and compared to the value en-
tered as part of the read fitting code. If the gap between the two values is
smaller than the acceptable tolerance given in the code, the welding pro-
cess starts. If the gap is greater than the preset tolerance, the welding unit
aborts welding and displays a "Resistance Error" message. Furthermore, it
displays the actual resistance value measured for the connected fitting.
Prior to starting the welding process, the actual resistance of the fitting
can be measured manually from the quick access menu that can be
opened by pressing the  key from the "Start?" screen (see Sect. 6.1 and
Display 4).
The reason for a resistance error may be poorly contacting and/or worn
connection terminals. Therefore, if this error occurs, check them for proper
fit and, if worn, replace them with new ones.
9.3

Overheating Switch

The welding process aborts if the temperature of the transformer in the
welding unit is too high. The overheating circuit breaker for the transformer
stops the welding if the temperature reading is too high and the remain-
ing welding time is longer than 800 seconds. The display and the welding
report will show an "Overheated" message.
9.4

Indication of Power Supply Failure at the Last Welding

The message "Power Supply Failure Last Welding" indicates that the previ-
ous welding aborted because of a power supply failure. The reason may be
too weak a generator or too long or too thin an extension cable, or a tripped
cut-out in the mounting box. The next welding operation is still possible
after acknowledging the message by pressing the STOP/RESET key.
10

Configuring the Welding Unit

With the operator identity card, the welding unit can be reconfigured. When
the MENU key is pressed, the "Enter Menu Code" message appears on the
screen. After the code was read from the card or entered manually (see
the Info in Sect. 5.2), the selection menu in Display 14 shows.
At "Settings," the parameters related to the welding unit itself and its opera-
tion can be set. At "Recording," the traceability data that have to or need
not be recorded and written into the reports can be enabled or disabled.
The desired sub-menu is selected using the ñ and ò arrow keys. Then to
access that sub-menu, press the MENU key.
In both parts of the configuration menu, use the ñ and ò arrow keys to
select the desired set-up option. Use the ð arrow key to toggle between
„on" and „off" for that set-up option.
If a "M" is shown next to a set-up option, this indicates that a sub-menu is
accessible here by pressing the MENU key.
All manuals and user guides at all-guides.com
English
4000-S
Version December 2013
AHST02-00-13005-06
Unit No.: 13920136
Next Service: 01-15
Avail. Rep.: 1792
>Settings
Recording
T E G A M u h e n d i s l i k S a n a y i v e T i c a r e t A . Ş .
06930 Sincan Ankara, Turkey
-M-
-M-
Display 14