Stevens Encoders and Floats Comparison Matrix
| Encoder | Accuracy | Operating Temperatures | Ranges | Input | Output Signal |
Torque | Dimensions W x H x D |
|
 |
SDI-12 (stand alone) |
.01 ft w/12" pulley | -40 to 70 C | -999.99 to 999.99 ft. | 12 VDC | SDI–12 | 0.2 in. oz | 6.4 x 5.9 x 5 |
 |
SDI-12 (A/F Attachment) |
.01 ft w/12" pulley | -40 to 70 C | -999.99 to 999.99 ft. | 12 VDC | SDI–12 | 0.2 in. oz | 4.8 x 4.8 x 3.5 |
|
PG III | 300
pulses/ shaft rev |
-40 to 70 C | 500 pulse/sec | 5-12 VDC | Up-Down pulse | NA | 5 x 5 x 5 |
|
Type
A/F (stand alone) |
400
transition /rev |
-40 to 70 C | 15/rev/sec | 5 VDC | Quadrature | NA | 5 x 5 x 5 |
 |
Type A/F (chart recorder attachment) |
400
transition /rev |
-40 to 70 C | 15/rev/sec | 5 VDC | Quadrature | NA | 2.45 x 2.2 x 1.3 |
|
PAT | 0.38% (FS) | -40 to 70 C | 0.8 to 105 ft. | 13.4 – 40.2 VDC | 4-20 MA, VDC | 0.3 – 0.6 in. oz | 5 x 5 x 5 |
 |
Syncro | .01 ft w/18" pulley | -55 to 85 C | 0 – 999.99 | 110 VDC | Voltage | NA | 5 x 5 x 5 |