Connecting The Fitting; Reading The Fitting Code With A Handheld Scanner; Starting The Welding Process; Welding Process - TEGA 4000-S Manuel Utilisateur

Version December 2013
pressing the START/SET key. If the code entered is not correct, a "Code
Error" message appears; check the sequence of numbers and correct as
needed. If the code entered is correct, it is saved to system memory and
inserted into the welding reports to be printed.
Only an ISO standard-compliant welder identification code is accepted by
the unit. If the welder code feature is disabled, the input screen for the
welder code will not show.
5.3

Connecting the Fitting

Connect the connection terminals to the fitting and check for proper con-
tact. Use terminal adapters if needed. The contact surfaces of the cable
connection terminals or adapters 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 consum-
ables and, therefore, have to be checked before every welding operation
and replaced if damaged or dirty.
When the fitting is connected, instead of the "No Contact" message the
number of the next welding report appears, e.g., "Prot. No.: 0015."
5.4

Reading the Fitting Code with a Handheld Scanner

Only the bar code on the tag sticking on the fitting to be welded may be
used. It is not acceptable to read the fitting code tag of a fitting of a dif-
ferent kind if the intended one is damaged or unreadable.
Read the fitting code by holding the scanner in front of the bar code at
a distance of 5 to 10 cm (2 to 4 inches), where the red line indicates the
reading area. Then push the reading button. If the data are correctly read,
the welding unit confirms this by an audible signal and displays the decoded
data on the screen (see Display 4).
The displayed values are the nominal welding parameters con-
tained in the fitting bar code. They are displayed before the actual
resistance of the electrofusion fitting is measured. This means
that even when the showing ohm value is o.k., a resistance error
Info
may still be detected (see Sect. 9.2). Only when the welding
process starts, the display shows the actual, measured welding
parameters.
The "Start ?" message means that the unit is ready to start the welding
process. Check the read data and if you see that they are erroneous, delete
them by pressing the STOP/RESET key. The read data are also deleted if
the welding unit is disconnected from the fitting.
5.5

Starting the Welding Process

After reading or entering the fitting code, 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 message "Pipe
treated?," which in turn requires a confirmation with the START/SET key
to start the welding proper.
5.6

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 welding current are displayed in the lower line of
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
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Start ?
Temp.: 20°C
DURA ‡
SAT
Act. Time: 56sec
Nom. Time: 90sec
35.00V
4000-S
9
315mm 90s
40.00V 0.80Ω
Display 4
43.7kJ
1.57Ω 22.29A
Display 5