Specifications

LIF 481 V

Measuring standard

Graduation carrier*

Expansion coefficient

SUPRADUR phase grating

Glass or Zerodur® glass ceramic

Glass: ?therm  8 · 10–6 K–1

Zerodur®glass ceramic: ?therm  (0 ± 0.1) x 10–6 K–1

Accuracy grade

± 3 µm

Measuring length ML*
in mm

70 120 170 220 270 320 370 420 470 520 570 620 670 720

770 820 870 920 970 1 020

Reference marks

One at midpoint of measuring length

Output signals

  1 VPP

Signal period

4 µm

Cutoff frequency –3 dB

–6 dB

? 300 kHz

? 420 kHz

Traversing speed

–3 dB: 72 m/min

–6 dB: 100 m/min

Position detection

Homing and limit signal

Power supply

Current consumption

5 V ± 5 %

< 175 mA

Electrical connection*

• • Interface electronics outside of the high vacuum:
  Cable 0.5 m or 1 m up to high-vacuum feedthrough; cable 0.5 m up to D-sub connector (15-pin) with integrated interface electronics
• • Interface electronics in high vacuum:
  Cable 0.5 m or 1 m with D-sub connector (15-pin); interface electronics integrated in connector

Cable length1)

Incremental: ? 30 m; homing, limit: ? 10 m

Vibration 55 to 2 000 Hz

Shock 11 ms

? 200 m/s2 (IEC 60 068-2-6)

? 500 m/s2 (IEC 60 068-2-27)

Operating temperature

0 °C to 40 °C

Bake-out temperature

100 °C

PCB material

FR4

Weight Scanning head

Connector

Scale

Connecting cable

9 g (without connecting cable)

32 g; with integrated interface electronics: 140 g

0.8 g + 0.08 g/mm measuring length

38 g/m

* Please select when ordering

1) With HEIDENHAIN cable