LF 485

    Spécifications techniques

    Specifications

    LF 485

    Measuring standard

    Coefficient of linear expansion

    SUPRADUR phase grating on steel, grating period 8 µm

    αtherm  10 x 10-6 K-1

    Accuracy grade*

    ± 5 µm; ± 3 µm

    Measuring length ML* in mm

    Back-up spar* optional

    50, 100, 150, 200, 250, 300, 350, 400, 450, 500, 550, 600, 650, 700
    750, 800, 900, 1000, 1120, 1220

    Incremental signals

    1 VPP

    Signal period

    4 µm

    Reference marks* LF 485

    LF 485 C

    • 1 reference mark at midpoint of measuring length
    • 2 reference marks, each 25 mm (at ML ≤ 1 000 mm) or 35 mm (at ML ≥ 1 120 mm) from the beginning and end of measuring length.

    Distance-coded

    Cutoff frequency –3 dB

    ≥ 250 kHz

    Electrical connection

    Separate adapter cable (1 m/3 m/6 m/9 m) connectable to mounting block

    Cable length

    ≤ 150 m (with HEIDENHAIN cable)

    Power supply without load

    5 V DC ± 5 %/< 120 mA

    Traversing speed

    ≤ 60 m/min

    Required moving force

    ≤ 4 N

    Vibration 55 Hz to 2 000 Hz
    affecting the

    Shock 11 ms

    Acceleration

    Housing with mounting spar: ≤ 150 m/s2 (EN 60 068-2-6)

    Scanning unit: ≤ 200 m/s2 (EN 60 068-2-6)

    ≤ 300 m/s2 (EN 60 068-2-27)

    ≤ 100 m/s2 in measuring direction

    Operating temperature

    0 °C to 50 °C

    Protection EN 60 529

    IP 53 when installed according to instructions in the brochure

    IP 64 with sealing air via DA 400

    Weight

    0.4 kg + 0.6 kg/m measuring length

    * Please select when ordering