PP 281 R

    Dati tecnici

    PP 281 R

    Measuring standard

    Coefficient of linear expansion

    Two-coordinate TITANID phase grating on glass; grating period 8 µm

    αtherm  8 x 10–6 K–1

    Accuracy grade

    ±2 µm

    Measuring range

    68 mm x 68 mm,

    other measuring ranges upon request

    Reference marks1)

    One reference mark in each axis, 3 mm after beginning of measuring length

    Interface

      1 VPP

    Signal period

    4 µm

    Cutoff frequency –3 dB

    300 kHz

    Traversing speed

    72 m/min

    Interpolation error

    Position noise RMS

    ±12 nm3)

    2 nm (450 kHz2))

    Electrical connection

    0.5 m cable with 15-pin D-sub connector (male); interface electronics in connector

    Cable length

    See interface description, but 30 m (with HEIDENHAIN cable)

    Power supply

    DC 5 V ±0.25 V

    Current consumption

    < 185 mA per axis

    Vibration 55 Hz to 2000 Hz

    Shock 11 ms

    80 m/s2 (EN 60068-2-6)

    100 m/s2 (EN 60068-2-27)

    Operating temperature

    0 °C to 50 °C

    Mass Scanning head

    Grid plate

    Connecting cable

    Connector

    170 g (without cable)

    75 g

    37 g/m

    140 g

    1) The reference mark signal deviates in its zero crossovers from the interface specification (see Mounting Instructions)

    2) –3 dB cutoff frequency of the subsequent electronics

    3) With HEIDENHAIN interface electronics, e.g. EIB 741