MTS Systems Temposonics R Series Operation Manual page 34

Temposonics R-Series SSI
®
Operation Manual
Concentric mounting
of U-magnet
Air gap
Part no. 251 416-2:
1.75 ±1 (0.07 ±0.04)
Part no. 201 553:
3 ±1 (0.12 ±0.04)
U-magnet
1
2
Non-magnetic mounting plate
Fig. 39: Mounting of U-magnet (part no. 251 416-2 or part no. 201 553)
8 ±2
(0.31 ±0.08)
Block magnet
1
2
Non-magnetic mounting plate
Fig. 40: Mounting of block magnet (part no. 403 448)
Magnet mounting with magnetic material
When using magnetic material the dimensions of Fig. 41 must
be observed.
A. If the position magnet aligns with the drilled piston rod
B. If the position magnet is set further into the drilled piston rod, install
another non-magnetic spacer (e.g. part no. 400 633) above the
magnet.
A
1
2
Magnet
3
Null zone, depends on sensor model (see Fig. 43 / Fig. 44)
1
Distance between position magnet and any magnetic material
2
(≥ 15 mm (≥ 0.6 in.))
Non-magnetic spacer (≥ 5 mm (≥ 0.2 in.)) –
3
Recommendation: 8 mm (0.31 in.)
Fig. 41: Installation with magnetic material
Controlling design dimensions are in millimeters and measurements in ( ) are in inches
2
1
M4
2
M4
1
Air gap: 3 ±2
(0.12 ±0.08)
Sensor element
B
Magnetic
material
Magnet
3
Sensors with stroke lengths ≥ 1 meter (3.3 ft.)
Support horizontally installed sensors with a stroke length from 1 meter
(3.3 ft.) mechanically at the rod end. Without the use of a support, rod
and posi tion magnet may be damaged. A false measurement result
is also possi ble. Longer rods require evenly distributed mechanical
support over the entire length (e.g. part no. 561 481). Use an U-magnet
(Fig. 42) for measurement.
Fig. 42: Example of sensor support (part no. 561 481)
34
U-magnet
Sensor rod
Non-magnetic fixing clip