HEIDENHAIN LS 388C Incremental Linear Encoder
The HEIDENHAIN LS 388C is a sealed incremental linear encoder with a glass scale, the slimline LS 300 series used on manually operated machine tools and measuring equipment. Ask AMI about repair, replacement or sourcing for your exact unit; availability and the right replacement path are confirmed before quoting. This page does not claim stock. Legacy model: it is no longer listed in HEIDENHAIN's linear encoder catalog for numerically controlled machine tools.
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Own a LS 388C that has failed? Ask about repair options.
Representative LS 300 series image.
Technical data
| Model | LS 388 C |
|---|---|
| Type | Sealed incremental linear encoder (slimline LS 300 series) |
| Measuring standard | Glass scale with DIADUR graduation, 20 µm grating period |
| Accuracy grade | ±10 µm |
| Measuring lengths | 70 mm to 1240 mm (70, 120, 170, 220, 270, 320, 370, 420, 470, 520, 570, 620, 670, 720, 770, 820, 870, 920, 970, 1020, 1140, 1240 mm) |
| Interface | ~ 1 Vpp |
| Reference mark | Distance-coded |
| Recommended measuring step | 10 µm, 5 µm |
| Power supply | DC 5 V ±0.25 V, < 100 mA without load |
| Electrical connection | Separate adapter cable connectable to the mounting block |
| Cable length | Up to 30 m (with HEIDENHAIN cable) |
| Traversing speed | Up to 60 m/min |
| Required moving force | ≤ 5 N |
| Vibration / shock | 150 m/s2 (55 to 2000 Hz) / 300 m/s2 (6 ms) |
| Operating temperature | 0 to 50 °C (32 to 122 °F) |
| Protection | IP 53 when mounted per the mounting instructions |
| Mass | 0.27 kg + 0.67 kg/m measuring length |
Specifications from the manufacturer's January 2020 catalog for manually operated machine tools. Confirm the full ID number and measuring length from your encoder's nameplate before ordering; send the nameplate and we will confirm fit.
Catalog pages: LS 388 C / LS 328 C specifications (PDF, 3 pages).
See also the LS 373 / LS 383 incremental linear encoders.