Selection guide LIP/LIF/LIC (vacuum): LIF 471V / LIF 481V

Specifications

Scale	LIF 401 R
Measuring standard* Coefficient of linear expansion	SUPRADUR phase grating on Zerodur glass ceramic or glass; grating period: 8 µm αtherm = (0±0.1) · 10–6 K–1 (Zerodur glass ceramic); αtherm 8 · 10–6 K–1 (glass)
Accuracy grade	±3 µm
Baseline error	≤ ±0.225 µm/5 mm
Measuring length (ML)* in mm	70 120 170 220 270 320 370 420 470 520 570 620 670 720 770 820 870 920 970 1020 1140 1240 1340 1440 1540 1640
Reference marks	One at midpoint of measuring length
Mass	0.8 g + 0.08 g/mm of measuring length

Scanning head	LIF 48 V	LIF 47 V
Interface	1 VPP	 TTL
Integrated interpolation* Signal period	– 4 µm	5-fold 0.8 µm	10-fold 0.4 µm	20-fold 0.2 µm	50-fold 0.08 µm	100-fold 0.04 µm
Cutoff frequency –3 dB	≥ 1 MHz	–
Scanning frequency*	–	≤ 500 kHz ≤ 250 kHz ≤ 125 kHz	≤ 250 kHz ≤ 125 kHz ≤ 62.5 kHz	≤ 250 kHz ≤ 125 kHz ≤ 62.5 kHz	≤ 100 kHz ≤ 50 kHz ≤ 25 kHz	≤ 50 kHz ≤ 25 kHz ≤ 12.5 kHz
Edge separation a	–	≥ 0.080 µs ≥ 0.175 µs ≥ 0.370 µs	≥ 0.080 µs ≥ 0.175 µs ≥ 0.370 µs	≥ 0.040 µs ≥ 0.080 µs ≥ 0.175 µs	≥ 0.040 µs ≥ 0.080 µs ≥ 0.175 µs	≥ 0.040 µs ≥ 0.080 µs ≥ 0.175 µs
Traversing speed1)	≤ 240 m/min	≤ 120 m/min ≤ 60 m/min ≤ 30 m/min	≤ 60 m/min ≤ 30 m/min ≤ 15 m/min	≤ 60 m/min ≤ 30 m/min ≤ 15 m/min	≤ 24 m/min ≤ 12 m/min ≤ 6 m/min	≤ 12 m/min ≤ 6 m/min ≤ 3 m/min
Interpolation error RMS position noise	±12 nm 0.6 nm (1 MHz2))	–
Electrical connection*	Interface electronics outside of the high vacuum: Cable (0.5 m, 1 m, 2 m, or 2.5 m) up to high-vacuum feedthrough; cable 0.5 m up to 15-pin D-sub connector with integrated interface electronics Interface electronics in the high vacuum: Cable (0.5 m, 1 m, 2 m, or 3 m) with 15-pin D-sub connector (interface electronics integrated in connector)
Cable length	See interface description; however, incremental: ≤ 30 m; homing, limit: ≤ 10 m; (with HEIDENHAIN cable)
Supply voltage	DC 5 V ±0.25 V
Current consumption	< 150 mA	< 165 mA (without load)
Vibration 55 Hz to 2000 Hz Shock 11 ms	≤ 400 m/s2 (EN 60068-2-6) ≤ 500 m/s2 (EN 60068-2-27)
Operating temperature	0 °C to 50 °C
Baking temperature	100 °C
PCB material	FR4
Mass Scanning head Cable Connector	9 g 38 g/m 75 g
* Please select when ordering 1) With TTL: maximum traversing speed during referencing: 9.6 m/min (40 kHz) 2) –3 dB cutoff frequency of subsequent electronics