To get an accurate reading,
before welding, the operator
must adjust the seam thickness
reduction display. The value
on the display should read
zero. See page 7
Display (6)
.
As the knurl pressure rollers
press into the geomembrane
material according to the
welding pressure, the electro-
nic processor already inter-
prets this as seam thickness
reduction and it should there-
fore be neutralised accord-
ingly.
The automatic adjustment of
the welding speed can be set
before starting the welding
process by using the ON/OFF
switch.
The print-out mode must be
selected before starting the
welding process.
– Graphic mode
Continuous recording and
print-out of the seam thick-
ness reduction over the whole
length of the welded seam
– Tolerance mode
Recording of the seam
thickness reduction is only
printed out if the seam
thickness reduction toleran-
ce has been exceeded.
Recording Mode
Speed Control System
Seam thickness reduction - offset
Before welding, the operator must enter the thickness of the geomembrane
material. The electronic processor requires this value to calculate the relevant
seam thickness reduction. Depending on the material thickness, the range of
seam thickness reduction is automatically adjusted on the print-out. The mate-
rial thickness settings should not be changed during the welding process.
Thickness of material
DESCRIPTION OF TOOL
LEISTER TWINMAT
7
P
P
P
T W I N M AT
S o f t w a r e - R e v :
L E I S T E R , S w i t z e r l a n d
D a t u m :
Z e i t :
B e t r i e b s - S t d .
Start 22.11.94 15.39
4 . 0 M e s s b e r e i c h [ m m ] 5 . 0
4 . 0 M e s s b e r e i c h [ m m ] 5 . 0
Stop 22.11.94 15.40
S c h w e i s s t e m p e r a t u r
m i n 4 4 7
°
C
m a x 4 5 9
°
C
S c h w e i s s g e s c h w i n d i g k e i t
o h n e S p e e d - C o n t r o l
m i n 2 . 0 0 m / m i n
max 2.10 m/min
F ü g e k r a f t
m i n 1 2 4 0 N
max 1292 N
F ü g e w e g
min 0.04 mm
max 0.45 mm
Umgebungstemperatur 10
°
C
M a t e r i a l d i c k e 2.50 mm
Nahtlänge 2.40 m
450 C
2. 05
1250 N
452 C
2. 00
N
1 m
2 m
1261
Toleranzüberschreitung bei 8.10 m
S t a r t 2 3 . 11 . 9 4 9 . 2 4
4 4 9 C 2 . 6 1 m / m i n 1 3 0 0 N
3 . 1 M e s s b e r e i c h [ m m ] 4 . 1
S t o p 2 3 . 11 . 9 4 9 . 3 0
S c h w e i s s t e m p e r a t u r
m i n 4 4 8
°
C
m a x 4 5 3
°
C
m i n 1 . 5 9 m / m i n
max 2.61 m/min
S c h w e i s s g e s c h w i n d i g k e i t
o h n e S p e e d - C o n t r o l
F ü g e k r a f t
m i n 1 2 7 5 N
max 1305 N
F ü g e w e g
min 0.05 mm
max 0.38 mm
Umgebungstemperatur 19
°
C
M a t e r i a l d i c k e 2.05 mm
T W I N M AT
S o f t w a r e - R e v :
L E I S T E R , S w i t z e r l a n d
D a t u m :
Z e i t :
B e t r i e b s - S t d .
Nahtlänge 9.10 m
P
Graphic mode
Tolerance mode
PRINT OUT
