Measurements - Aventics VTM Notice D'instruction

AVENTICS | VTM | R402002668-BDL-001-AC
9.2

Measurements

Velocity measurement
Measuring range
Resolution
Accuracy
Probe
Lowest magnetic field at
which measurement is
possible
1)
The vector of the magnetic flux at the sensor body, aligned with the direction of
motion of the cylinder.
Time measurement
Measuring range
Resolution
Sensors
0.10 to 9.99 m/s
0.01 m/s
5 % (at 5 m/s and with a magnetic flux
1)
density of 2 mT )
Lower velocity and higher flux density
give improved accuracy.
The probe consists of two sensors 10
mm apart. The displayed velocity is the
average velocity over that distance.
2 mT
0.001 to 59.9 s
1 ms for times below 2 s
10 ms for times between 2 and 10 s
100 ms for times above 10 s
The meter can be used with PNP or NPN
sensors. PNP or NPN is set at the factory,
but the setting can be changed with two
switches on the circuit board. This may
only be done by authorised personnel.
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Technical data