SR12 Miniature Absolute Encoder
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SR12 absolute encoder
Size: 1.25"D x 1.25"L (32mm x 32mm)
Description (305k)

Specifications (100k)

Dimensions

9-bit Miniature Absolute Encoder

The Photocraft SR12 is a full function, 9-bit, single-turn, digital, rotary absolute position encoder intended for applications requiring miniature size, low cost, and up to 512 uniquely identifiable positions per revolution. The SR12 outputs the position information in either digital parallel or serial formats, or 0-10vdc analog format. In analog format the SR12 can function as a non-contact potentiometer.

Model Number

SR12 shaft size - resolution output codes / supply voltage modification
 
1/4" shaft is standard
M6= 6mm
 
  128

256

512

A= 0-10vdc analog
G= gray code
N natural binay
 

Inquire for others

  Digital output:
5

Analog output:
12-30

Optional modification number

(see modified versions table below)

 

Example: SR12 - 512N / 5 Example: SR12 - 256G / 5  M137
bulletSR12 miniature absolute encoder
bullet512 positions per revolution
bulletnatural binary output code
bulletoperates on 5 vdc
bulletSR12 miniature absolute encoder
bullet256 positions per revolution
bulletgray code output code
bulletoperates on 5 vdc
bulletM137 modification (see table below)

 

Standard Features and Options

bullet

Output Formats: parallel, serial synchronous, 0-10vdc analog

bullet

Interrogation Rate: 1K Hz

bullet

Logic: Positive

bullet

Rotation: Increasing

bullet

DataReady Signal: high

bullet

Output Circuit: push/pull output or open collector

bullet

Shaft: 1/4" x 3/4" length, or 6mm x 19mm length

 

Optional Accessories

bullet

12 conductor ribbon cable with mating 2x6 connector (for models with parallel output)

 

Modified Versions

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Modification Description  
SPI SR12 with serial synchronous output  
M137 SR12 with M4 x .7 mounting holes Datasheet (20k)
M146 SR12 with 3/16" diameter shaft (without flat) Datasheet (19k)

Custom Models available

 

 

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Copyright © 2008 Photocraft Inc
Last modified: May 12, 2008