Gefran LT67 Data Sheet
LT67
RECTILINEAR DISPLACEMENT TRANSDUCER
WITH IP67 PROTECTION
Main features
• This transducer is designed to guarantee a high
protection level (IP67) in applications under harsh
conditions and outdoors, where it may be necessary to
work in the direct presence of dust, dirt, or liquids (not in
prolonged immersion)
• The grooves on the profile provide an excellent
alternative to the usual system of fastening with brackets
• Ideal for applications on plastic injection presses
with installation at points that are highly exposed to
lubricants
• Also indicated for processing machines on which the
transducer cannot be protected by guards
TECHNICAL DATA
Useful electrical 50/75/100/130/150/175/200/225/
stroke (C.E.U.) 275/300/350/375/400/450/500/
600/650/750/900
Independent linearity
(within C.E.U.)
Resolution infinite
Repeatability 0.01mm
Electrical connection M12 4-pole connector
Protection level IP67 (use M12 4-pole
female connector with IP67
or higher protection level)
Life > 25x10
(NOT used in > 100x10
prolonged immersion) is less (within C.E.U.)
Displacement speed Standard ≤ 3 m/s max ≤ 5 m/s
Displacement force ≤ 20N
Vibrations 5...2000Hz, Amax =0.75 mm
amax. = 20 g
Shock 50 g, 11ms.
Acceleration 200 m/s
Tolerance on resistance ± 20%
Recommended cursor
current
Maximum cursor current 10mA
Maximum applicable voltage 60V
Electrical isolation >100MΩ at 500V=, 1bar, 2s
Dielectric strength < 100 mA at 500V~ ,50Hz, 2s,1bar
Dissipation at 40°C
(0W at 120°C)
Thermal coefficient -200...+ 200 ppm/°C typical
of resistance
Actual Temperature Coefficient
of the output voltage
Working temperature -30...+100°C
Storage temperature -50...+120°C
Material for transducer case Anodised aluminium Nylon 66 G 25
Material for pull shaft C45 chrome steel 20mm
Mounting Brackets with adjustable distance
between centers or with M5 screw
ISO4017-DIN933
± 0.05%
6
m strokes, or
6
maneuvers, whichever
2
max (20g)
< 0,1 mA
3W
≤ 5ppm/°C typical
DIMENSIONI MECCANICHE
Tightening torque
240Ncm max
Mounting with M5 screw
4 pole M12
connector
Limiter nut
Do not remove
ISO4017-DIN933
Dimensions of
screw head groove
Important: all the data reported in the catalogue linearity, lifetime, temperature coefficient are valid for a sensor utilization as a ratiometric device with a max
current across the cursor Ic ≤ 0.1 mA
ELECTRICAL / MECHANICAL DATA
MODELLO
Useful electric stroke (C.E.U.) +3/-0
Theoretical electrical stroke (C.E.T.) ±1
Resistance (C.E.T.)
Mechanical stroke (C.M.)
Case length (A
mm
mm
kΩ
mm
mm
50
50
130
150
175
175
200
200
C.E.U. + 10
C.E.U. + 72.5
100
75
130
100
C.E.U. + 3 C.E.U. + 4
C.E.U. + 9
C.E.U. + 71.5
150
5
225
225
275
300
275
300
5
350
350
355
5
361
423.5
375
375
380
5
386
448.5
400
400
406
5
412
474.5
450
450
457
5
463
525.5
500
500
508
5
518
580.5
600
600
609
619
681.5
75
Note: It is recommended to keep the sliding parts lubrificated, with a lubricant general purpose least every 6 months.
ELECTRICAL CONNECTIONS
650
650
660
5
5
670
733.5
750
750
762
10
772
834.5
900
900
914
10
924
986.5
nc
1
ORDER CODE
Displacement transducer LT67
Model
Connector
output
3
2
4 nc
3 (+)
2
INSTALLATION INSTRUCTIONS
• Make the specified electrical connections
(DO NOT use the transducer as a variable
resistance)
• When calibrating the transducer, be careful to set the stroke so that the output does
not drop below 1% or rise above 99% of the
voltage level.
1 (-)
C.E.U.
C.E.T.
C.M.
No certificate attached 0
Linearity curve to be attached L
Color of plastic heads (green) 0
Color of plastic heads (black) N
Connection
side
0 0
0
X 0
0 X
0
0
Example:LT67 - 0300 0000X000X00
LT67 displacement transducer, M12 4-pole connector output, useful electrical stroke (C.E.U.) 300mm., no certificate attached, green
plastic components.
ACCESSORIES
STANDARD Code
LT mounting kit, 2 brackets, screws PKIT009
A RICHIESTA Code
M12 4-pole axial female connector, IP67-IEC48B clamp for ø6-ø8mm cable CON293
M12 4-pole 90° radial female connector, IP67 CON050
Ball connection joint PKIT015
GEFRAN spa reserves the right to make any kind of design or functional modification at any moment without prior notice
DTS_LT67_06-2013_ENG
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