Gefran PMI-SL Data Sheet
Version Flange (X) Std
Version Flange (M)
M24x1,5 thread
SEALING
ZONE
IP67 0,2 BAR
SEALING
ZONE
AT 250 BAR
Case
3-pole
cable PUR
3-pole
cable PUR
Welding
Welding
Stem
Sealing
gasket
PMI-SL
RECTILINEAR DISPLACEMENT TRANSDUCER
WITH MAGNETIC DRAG
Applicative characteristics
• The PMI-SL transducer, an evolution of the PMI-12,
is designed for all inside cylinder applications which
require a smaller transducer.
For this reason, the diameter has been reduced to
12.7 mm.
• The PMI Slim offers the same robustness as the PMI-12:
AISI 316 stainless steel body, IP67 protection level,
and pressure resistance up to 250 bar (400 bar peak)
• Available with flanged or threaded heads, to guarantee mechanical compatibility with all main cylinder
types
• Patented solution
• Ideal for applications inside hydraulic cylinders,
demanding simple solutions which guarantee measurement repeatability.
MECHANICAL DIMENSION
Important: all the data reported in the catalogue linearity and tem-
perature coefficients are valid for sensor utilization as a ratiometric
device with a max current across the cursor Ic ≤ 0.1 µA.
TECHNICAL DATA
Useful electrical stroke (C.E.U.)
50/100/150/200/250/300/350/400/450/500/550/600/750/800/850/900/950
/1000
Independent linearity (within C.E.U.)
± 0,35%
Resolution
Infinie
Repeatability
≤ 0.08 mm
Hysteresis
< 250µm
Life
6
> 25x10
Electrical connection
1 mt 3-pole shielded cable
Displacement speed
standard < 5 m/s
Max. acceleration
< 10m/s2 max displacement
Cursor dragging force
≤ 0.5 N
Vibrations
5...2000Hz, Amax =0,75 mm amax. = 20 g
Shock
50 g, 11ms.
Displacement sensitivity (no hysteresis)
from 0.05 to 0.1 mm
Tracking error
see table
Tolerance on resistance
± 20%
Recommended cursor current
< 0,1 µA
Maximum cursor current in case of bad performances
10mA
Maximum applicable voltage
see table
Electrical isolation
>100MΩ at 500V=, 1bar, 2s
Dielectric strenght
< 100µA at 500V~, 50Hz, 2s, 1bar
Dissipation at 40°C (0W at 120°C)
see table
Thermal coefficient of resistance
-200...+200 ppm/°C typical
Actual Temperature coefficient of the output voltage
≤ 5 ppm/°C typical
Working temperature
-30...+100°C
Storage temperature
-50...+120°C
Material for transducer case
AISI 304
m strokes, or > 100x106 maneuvers, whichever is less
MECHANICAL / ELECTRICAL DATA
MODEL
Useful electrical stroke (C.E.U.) + 1/-0
Theoretical electrical stroke (C.E.T.) ± 1
Independent linearity (within C.E.U.)
Dissipation at 40°C (0W at 120°C)
Max applicable voltage
Resistance (C.E.T.)
Mechanical stroke (C.M.)
Case Lenght “A” ±1
mm
mm
± %
W
V
kΩ
mm
mm
50
100 150 200 250 300 350 400 450 500 550 600 750 800 850 900 950 1000
Model
C.E.U. + 1
0.35
1 2
40
3
60
5 10 20
C.E.U. + 5
C.E.U. + 94.7
PCUR010 CURSOR STANDARD FLANGE (X) THREADED FLANGE (M)
stem
welding
INSTALLATION INSIDE THE CYLINDER
Flange Version (M) thread M24x1,5
stem
welding
O-Ring recommended
PARKER 2-117 20,29x2,62
Material NBR 90 Shore-A
Compound PARKER N552-90
O-ring surface must be free of spiral
or longitudinal scratches Ro 1,6μm for
O-rings with NOT PULSING pressure
Ro 0,8μm for O-rings with PULSING
pressure
O-Ring recommended PARKER
2-117 20,29x2,62 Material NBR 90
Shore-A
Compound PARKER N552-90
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