Leister COMET Instructions D'utilisation page 26

Operating conditions
Check the welding process and identify
faults by means of the display of power
consumption.
<
Overload Indication
*
Heating / Drive active
Display 4
100 %
100 %
Display 2
100 %
100 % or <
100 % or <
100 % or <
100 % or <
If malfunction is still present, contact service centre.
Test weld
Perform a test welding according to the welding instructions of the material manufacturer
and the national standards or guidelines. Check the test welding.
Check
• Drive/pressure rollers (20/21), idler wheel (28), lower guide plate (30) and upper guide plate (29) as well
as the hot wedge (7) must be clean.
• Film and sealing membranes must be clean between the overlap and on the upper and lower surfaces.
• Length of the power supply cord/cable guide.
26
Display no.
Drive / heating
1. Welding speed
2. Welding speed
3. Temperature
4. Temperature
Heating reason for fault after heating up time
• mains under-voltage
• heating cartridges faulty
Drive reason for fault
• mains under-voltage
• overlap of the geomembrane liner too wide
• dirt on the drive rollers (20/21)
• max. welding pressure (1000 N) has been exceeded
• high welding speed with large sudden overload
(ie anchoring trench, T-joints....)
Level
Main Control
ACTUAL value
Power
SET value
consumption
ACTUAL value
Power
SET value
consumption