Measuring principle    Signal conditioning electronics    19" Chassis
   Strain gauge - Application    Strain gauge - Signal amplifier
Sensors
Typ A2-k* A3-k A4-k A7-k A11-k A18-k ME
Measuring range
(Steel-St37)
0,4 0,8 1,25 2,5 4 7,5 mm
Sensitivity 10 10 8 4 2,5 1,33 V/mm
Typical resolution 0,4 0,4 0,5 1 2 3 µm
Length
Tolerance ±0,5 mm
20,5 27 21,5 21,5 32,5 42,5 mm
External Thread (A) 3 x 0,5 6 x 0,75 6 x 0,75 10 x 1 14 x 1 22 x 1,5 mm
Dis.across flat SW 5,5 SW 10 SW 10 SW 15 SW 19 SW 27 mm
Typ-k A22-k A26-k A30-k A36-k A42-k A68-k ME
Measuring range
(Steel-St37)
12 10 15 18 20 30 mm
Sensitivity 0,83 1 0,66 0,55 0,5 0,33 V/mm
Typical resolution 5 4 6 7 8 10 µm
Length
Tolerance ±0,5 mm
48 47 48,5 33,5 58,5 48,5 mm
External Thread (A) 27 x 1,5 30 x 1,5 22 x 1,5 22 x 1,5 22 x 1,5 30 x 1,5 mm
Dis.across flat   SW 36 SW 27 SW 27 SW 27 SW 36 mm
picture figure sensors
Sensors
Temperature drift <= 0,01% of Mr/K at 50% of Mr
of the temperature range +10°C to +90°C (+50°F to +194°F).
Admissible ambient temperature for sensors and cable -20°C to +120°C (-4°F to +250°F).

Typical values for steel (St37)
The measuring ranges may differ for other materials.
Measuring range for Al, Cu, Ms, CFK = 50% of Mr St37
Measuring range of Titan, Pb, VA = 75% of Mr St37


Mr = Measuring range
k = Temperature compensated
ME = Unit
* Sensor-cable length = 25 cm
Adaptioncable length = 125 cm
Special sensor versions
  • Shielded version (A3 ... A68)
  • I-W-A/A14-k