Gefran PMA-0250 - Potentiometers

Useful electical stroke
(C.E.U.)
from 50 to 1000 mm
(for intermediate strokes see table
“Electrical / Mechanical Data”)
Independent linearity
(within C.E.U.)
see table
Resolution Infinite
Repeatability ≤ 0,08 mm
Hysteresis ≤ 0,25mm
Electrical connection PMA12 F 3-pole shielded cable 1m
Protection level IP67 (CEI EN 60529)
Life > 25x106
 m strokes, or
> 100x106
 operations, whichever
is less
Displacement speed ≤ 5 m/s
Max. acceleration ≤ 10m/s2
 displacement
Shock test DIN IEC68T2-27 50g, 11ms single stroke
Vibraziotions DIN IEC68T2-6 12g, 10...2000Hz
Cursor dragging force ≤ 0.5 N
Displacement sensitivity
(no hysteresis)
 da 0.05 a 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 strength < 100µA at 500V~, 50Hz, 2s, 1bar
Dissipation at 40°C
(0W at 120°C)
See table
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 Anodised aluminium, PSU
Material for cursor magnets POM
Mounting Self-aligning joints with adjustable
distance between centres