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LF 485

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