|              Linear scale              |                          LIDA 409              |         
                    |              Measuring standard             Coefficient of linear expansion              |                          Steel scale tape with METALLUR scale grating; grating period 20 µm             αtherm ? 10 · 10–6 K–1              |         
                    |              Accuracy grade*              |                          ±3 µm, ±15 µm1)              |         
                    |              Baseline error              |                          ≤ ±0.750 µm/50 mm (typical)              |         
                    |              Measuring length ML* in mm              |                          70 120 170 220 270 320 370             420 520 620 720 820 920 1020              |                          Scale tape from the roll: 2 m,4 m, 6 m              |         
                    |              Reference marks              |                          One at midpoint of measuring length              |                          Every 50 mm              |         
                    |              Mass              |                          31 g/m              |         
                    |                             |                                         |                                         |                                         |                                         |                                         |         
                    |              Scanning head              |                          LIDA 48              |                          LIDA 47              |         
                    |              Interface              |                            1 VPP              |                          ? TTL              |         
                    |              Integrated interpolation*             Signal period              |                          –             20 µm              |                          5-fold             4 µm              |                          10-fold             2 µm              |                          50-fold             0.4 µm              |                          100-fold             0.2 µm              |         
                    |              Cutoff frequency –3 dB              |                          ≥ 500 kHz              |                          –              |         
                    |              Scanning frequency*              |                          –              |                          ≤ 400 kHz             ≤ 200 kHz             ≤ 100 kHz             ≤ 50 kHz              |                          ≤ 200 kHz             ≤ 100 kHz             ≤ 50 kHz             ≤ 25 kHz              |                          ≤ 50 kHz             ≤ 25 kHz             ≤ 12.5 kHz              |                          ≤ 25 kHz             ≤ 12.5 kHz             ≤ 6.25 kHz              |         
                    |              Edge separation a2)              |                          –              |                          ≥ 0.100 µs             ≥ 0.220 µs             ≥ 0.465 µs             ≥ 0.950 µs              |                          ≥ 0.100 µs             ≥ 0.220 µs             ≥ 0.465 µs             ≥ 0.950 µs              |                          ≥ 0.080 µs             ≥ 0.175 µs             ≥ 0.370 µs              |                          ≥ 0.080 µs             ≥ 0.175 µs             ≥ 0.370 µs              |         
                    |              Traversing speed2)              |                          ≤ 600 m/min              |                          ≤ 480 m/min             ≤ 240 m/min             ≤ 120 m/min             ≤ 60 m/min              |                          ≤ 240 m/min             ≤ 120 m/min             ≤ 60 m/min             ≤ 30 m/min              |                          ≤ 60 m/min             ≤ 30 m/min             ≤ 15 m/min              |                          ≤ 30 m/min             ≤ 15 m/min             ≤ 7.5 m/min              |         
                    |              Interpolation error              |                          ±45 nm              |                          –              |         
                    |              Limit switches              |                          L1/L2 with two different magnets; output signals: TTL (without line driver)              |         
                    |              Electrical connection              |                          Cable, 0.5 m, 1 m or 3 m with D-sub connector (male) 15-pin              |         
                    |              Cable length              |                          See interface description, however limit: ≤ 20 m (with HEIDENHAIN cable)              |         
                    |              Voltage supply              |                          DC 5 V ±0.5 V              |         
                    |              Current consumption              |                          < 130 mA              |                          < 150 mA (without load)              |         
                    |              Vibration 55 Hz to 2000 Hz             Shock 6 ms              |                          ≤ 500 m/s2 (EN 60 068-2-6)             ≤ 1000 m/s2 (EN 60 068-2-27)              |         
                    |              Operating temperature              |                          –10 °C to 70 °C              |         
                    |              Mass Scanning head             Connecting cable             Connector              |                          20 g (without cable)             22 g/m             32 g              |         
                    |              * Please select when ordering             1) ±5 µm after linear length-error compensation in the evaluation electronics             2) At a corresponding cutoff or scanning frequency              |