Version October 2015
20
EN
agru EF 110-B User’s Manual
its working position. Then insert the component lying in the left-hand
clamp into the fitting as far as needed for its end to touch the spacer
bar, which may require repositioning the component in the clamp. When
the component touches the spacer bar, abutment of both components
on the midline of the fitting is guaranteed.
When the component lies inside the fitting, bring the spacer back to its
parking position and route the compressed air supply hose from the
system to the fitting through the component already lying in it. Connect
the fitting to the balloon and position the balloon in a central position in
the fitting. This is the case when the mark printed on the balloon is just
visible in front of the butt of the inserted component.
Then insert the component in the right-hand clamp over the balloon into
the e-fitting, which, again, may require repositioning it in the clamp.
When both components have been inserted into the fitting, first lock the
thumb screw of the fitting clamp, then lock both clamp carriages and the
fitting clamp carriage by tightening all three star knobs.
Pressing the START/SET key in a welding operation without inside bal-
loon will trigger a confirmation message “Pipe treated?,” which in turn
requires a confirmation with the START/SET key to start the welding
proper (see Display 11).
In a welding operation with inside balloon, the various steps of component
prepartion have to be confirmed individually. First clean the component
ends properly, face them, and do not touch them anymore with your bare
hands as far as possible. Finally insert the previously cleaned inside bal-
loon into the components to be jointed in such a position that is centered
on the midline inside the electrofusion fitting when the welding process
will start. Then the carriages have to be secured.
The welder will be prompted on the display screen for every one of these
component preparation steps and will have to confirm them by pressing
the START/SET key. When this is done, the welding process starts (see
Display 12) by the system creating the balloon inside pressure that was
previously entered or is contained in the code. Balloon pressure build-up
is also indicated on the screen for information.
4.6.6 Welding Process
The welding process is monitored for its entire duration applying the
welding parameters contained in the fitting code or entered manually. The
welding voltage, the resistance, and the welding current are displayed
in the lower line of the screen.
4.6.7 End of Welding
The welding process ends successfully if the actual welding time cor-
responds to the nominal welding time and the buzzer can be heard
twice.
The welding process has failed if a plain-text error is displayed on the
screen and the audible signal buzzes continuously. An error has to be
acknowledged by pressing the STOP/RESET key.
4.6.8 Cooling Time
The cooling time as given in the electrofusion fitting manufacturer’s
instructions has to be respected. If the bar code provided by the fitting
manufacturer contains cooling time data, it will be displayed at the end
of the welding process and will be counted down to zero. In principle,
the cooling time countdown can be canceled by the STOP/RESET key
Display 12
Act. Time: 56sec
Nom. Time: 90sec
Act. Pres.: 1.00bar
Cooling Time: 300sec
Display 11
Act. Time: 56sec
Nom. Time: 90sec
35.00V 1.57
ȍ
22.29A
