Absolute rotary encoder | Optical | M38S
- Up to 21-bit single-turn resolution available
- Up to 58-bit (18-bits/turn + 40-bit turns) gearless multi-turn resolution available
- Standard synchro flange
- SSI interface standard (RS-485) - 4 MHz clock frequency
- Accuracy: +/- 30 arcsec
Manufacturer:Gurley Precision Instruments
Description
The Model M58S with SSI output is a heavy-duty absolute rotary encoder with optical technology and
standard SSI (RS485) interface, used in a wide variety of position sensing applications for measuring
angles and distances.
It is available as a single-turn encoder with up to 21 bits of resolution (2,097,152 steps per revolution),
or as a standard multi-turn with a range of 18-bit words/turn + 40-bit turns. The optical technology and
magnetic sensors (for counting turns) allow the encoder to be gearless. A back-up battery is located
inside the encoder and assures true absolute position even power is disrupted.
| Attribute Name | Attribute Value |
|---|---|
| Documentation from Manufacturer | |
| Output Signal Type | Absolute |
| Measuring Principle | Optical |
| Resolution Singleturn (bit) | 21 |
| Resolution Multiturn (bit) | 18, 40 |
| Accuracy | ± 30 arc.sec |
| Interface | SSI |
| Housing Diameter (mm) | 58 |
| Shaft Type | Solid |
| Shaft Diameter (mm) | 6 |
| Revolutions - max. (rpm) | 12000 |
| Protection Rating Housing | IP65 |
| Special Requirements | Heavy duty |
| Approval | Not specified |
| Connection | Cable, Connector |
| Housing Material | Not specified |
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