LIP 471/481

    Specifications

    LIP 481

    LIP 471

    Measuring standard*

    Coefficient of linear expansion

    DIADUR phase grating on Zerodur glass ceramic or glass; grating period 4 µm

    αtherm  (0 ± 0.1) · 10-6 K-1 (Zerodur glass ceramic)

    αtherm  8 · 10-6 K-1 (glass)

    Accuracy grade*

    ± 1 µm (higher accuracy grades available on request)

    ± 0.5 µm

    Measuring length ML* in mm

    70, 120, 170, 220, 270, 320, 370, 420

    Reference marks*

    LIP 4x1 R: One at midpoint of measuring length

    LIP 4x1 A: None

    Interface

    1 VPP

    TTL

    Integrated interpolation*

    Signal period

    2 µm

    5-fold

    0.4 µm

    10-fold

    0.2 µm

    Cutoff frequency –3 dB

    300 kHz

    Scanning frequency*

    Edge separation a

    ≤ 200 kHz

    0.220 µs

    ≤ 100 kHz

    0.465 µs

    ≤ 50 kHz

    0.950 µs

    ≤ 100 kHz

    0.220 µs

    ≤ 50 kHz

    0.465 µs

    ≤ 25 kHz

    0.950 µs

    Traversing speed

    ≤ 36 m/min

    ≤ 24 m/min

    ≤ 12 m/min

    ≤ 6 m/min

    ≤ 12 m/min

    ≤ 6 m/min

    ≤ 3 m/min

    Electrical connection*

    Cable 0.5 m, 1 m, 2 m, or 3 m with D-sub connector (male) 15-pin; interface electronics in the connector

    Cable length

    See Interface Description, but ≤ 30 m (with HEIDENHAIN cable)

    Voltage supply

    5 V DC ± 0.25 V

    5 V DC ± 0.25 V

    Current requirement

    < 190 mA

    < 200 mA (without load)

    Vibration 55 to 2 000 Hz

    Shock 11 ms

    ≤ 200 m/s2 (EN 60 068-2-6)

    500 m/s2 (EN 60 068-2-27)

    Operating temperature

    0 °C to 40 °C

    Weight Scanning head

    Linear scale

    Connecting cable

    Connector

    LIP 4x1 A: 25 g, LIP 4x1 R: 50 g
    (each without cable)

    5.6 g + 0.2 g/mm measuring length

    38 g/m

    140 g

    * Please select when ordering

    Versions available for high vacuum LIP 481 V and ultrahigh vacuum LIP 481 U (see Product Information).