SGM-PR10 is a rod-type magnetostrictive position sensor built into the bore of a hydraulic or pneumatic cylinder. The pressure-resistant tube takes 35 MPa continuous (70 MPa peak), stroke is 25–8000 mm, and the sensor reports absolute piston position as 4–20 mA, 0–10 V, RS485 or SSI with no homing after power loss.
The SGM-PR10 compact pressure-resistant outer tube is suitable for being built into hydraulic cylinders and air cylinders. Analog output 0-10VDC / 4-20mA / 0-20mA; digital output RS485 / SSI / Profinet (on request). Part number prefix SGM stands for the SEGMENsensor magnetostrictive range; the full ordering code is explained below and in the datasheet.
Updated 2026-09-29 · Values from the SGM-PR10 datasheet, Rev A.
All values from the SGM-PR10 datasheet. Orderable range as listed; longer ranges and special temperature or pressure versions on request.
| Parameter | Value |
|---|---|
| Output type | |
| Analog output | 0-10VDC / 4-20mA / 0-20mA |
| Digital output | RS485 / SSI (Profinet on request) |
| Performance | |
| Measuring range | 25–8000 mm |
| Output signal | 0-20mA (max/min load 0/500Ω), 4-20mA (max/min load 0/500Ω), 0-10V (min load >5KΩ), RS485 (MODBUS RTU), SSI |
| Resolution | 16-bit DA |
| Non-linearity | <±0.01%FS (min ±50um) |
| Repeatability | <±0.001% (min ±5um) |
| Update time | <10ms (depending on range); 1ms (1m<range<2m); 2ms (2m<range<3m); 5ms (3m<range<4m) |
| Operating conditions | |
| Magnet speed | any |
| Operating temperature | -40~+85°C |
| Storage temperature | -55~+85°C |
| Humidity | 90% humidity, no frost forming. |
| Temperature coefficient | <30ppm/°C |
| Protection class | IP67 |
| Pressure rating | 35 MPa (continuous) 70 MPa (peak) |
| Electrical | |
| Electrical connection | Direct cable output or connector |
| Supply voltage | 24VDC (±20%) |
| Current consumption | <60mA (varies with measurement range) |
| Reverse-polarity protection | Maximum -30VDC |
| Over-voltage protection | Maximum 36VDC |
| Insulation strength | 500VDC |
| Mounting | |
| Mounting orientation | any |
| Mounting | M18*1.5 or custom-made |
| Position magnet | Ring magnet or float |
| Materials | |
| Sensor head | aluminum alloy |
| Protective tube | 304 stainless steel |
| Mounting flange | 304 stainless steel |
Specifications, wiring, dimension drawings and the complete ordering code on two pages. No registration required.
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| 1 | Analog output + |
| 2 | Analog output - |
| 3 | Reserved for debugging |
| 4 | Reserved for debugging |
| 5 | Input power + |
| 6 | Input power - (GND) |
| 1 | (-)data |
| 2 | (+)data |
| 3 | (+) Clock |
| 4 | (-) Clock |
| 5 | Input power + |
| 6 | Input power - (GND) |
| 7 | NC suspended |
| Green on / red off | Normal operation within the effective range |
| Green off / red on | The magnet is out of the effective measurement range or the magnet cannot be detected. |
| Green off / red flashing | Enter debugging |
Build the part number field by field. Outputs or options listed in the specifications but not in the ordering code are available on request.
| Code | Meaning |
|---|---|
| Mounting | |
| 18 | M18×1.5 |
| 20 | M20×1.5 |
| XX | Custom thread |
| Range | |
| 00025–08000 | 5 digits in mm, 5 mm steps (25–8000 mm) |
| Output | |
| I1F | 4–20 mA, zero at rod end |
| I1R | 4–20 mA reversed (20–4 mA), zero at head |
| I2F | 0–20 mA, zero at rod end |
| I2R | 0–20 mA reversed (20–0 mA), zero at head |
| V1F | 0–10 V, zero at rod end |
| V1R | 0–10 V reversed (10–0 V), zero at head |
| V2F | 0–5 V, zero at rod end |
| V2R | 0–5 V reversed (5–0 V), zero at head |
| R4 | RS485 (Modbus RTU) |
| SS | SSI; append bits+code+resolution µm+direction, e.g. SS25G005F |
| Connection | |
| K16 | M16 connector (analog / RS485 6-pin, SSI 7-pin) |
| C02 … C99 | Direct cable, number = length in m (C02 = 2 m) |
| …X | Suffix X: customer-specified cable |
| Options | |
| (none) | Series standard dead zones |
| Z1 | Short dead zones 30 + 60 mm |
| Z9 | Customer-specified dead zones |
| SGM-PR10-18-00600-I1F-K16 | Rod type, M18×1.5, 600 mm, 4–20 mA, M16 connector |
| Part number | Best for | Range | Output | Protection |
|---|---|---|---|---|
| SGM-PR10 | Hydraulic cylinder position sensor | 25–8000 mm | 4–20 mA / 0–20 mA / 0–10 V / 0–5 V / RS485 / SSI | IP67 |
| SGM-PE10 | Magnetostrictive linear position sensor | 25–8000 mm | 4–20 mA / 0–20 mA / 0–10 V / 0–5 V / RS485 / SSI | IP67 |
| SGM-PR20 | IP68 magnetostrictive position sensor | 25–7500 mm | 4–20 mA / 0–20 mA / 0–10 V / 0–5 V / RS485 | IP68 |
| SGM-PE20 | Slim linear position sensor | 25–4000 mm | 4–20 mA / 0–10 V / RS485 | IP67 |
| SE-PR30 | Intrinsically safe linear position sensor | 25–4000 mm | 0–5 V / 0.5–4.5 V / RS485 | IP67 IP68 |
| SGM-PF10 | Flat head magnetostrictive sensor | 25–8000 mm | 4–20 mA / 0–20 mA / 0–10 V / 0–5 V / RS485 | IP68 |
| SGM-PF20 | Compact magnetostrictive sensor | 25–4000 mm | 4–20 mA / 0–10 V / 0.5–4.5 V / 0.25–4.75 V | IP68 |
| SGM-PR40 | Compact rod position sensor | 25–4000 mm | 4–20 mA / 0–20 mA / 0–10 V / 0–5 V / RS485 | IP68 |
| SGM-PR50 | Miniature linear position sensor | 25–4000 mm | 4–20 mA / 0–20 mA / 0–10 V / 0–5 V / RS485 | IP68 |
New to the technology? Read How a magnetostrictive position sensor works.
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