Excel Automation is an authorized Tri-Tronics Photocraft distributor. Contact us for sales and technical support.
Features and Options:
- Size 22.5 housing
- Environmentally sealed
- Resolutions up to 2400 CPR
- Single, quadrature, and index outputs
Made in the USA
Made in the USA
Product Description
The model RJ optical shaft encoder features rugged construction and flexible mechanical configurations making it ideally suited for many industrial shop-floor environments.
The model RJ converts shaft rotation into square wave output pulses to provide an accurate means of digitizing position, rate or direction of rotation.
Output pulses are generated when a shatter-proof optical disk internally mounted on the encoder shaft and having the specified output pattern is read by 1, 2, or 3 opto-sensors depending on the number of outputs required. The matched LED and opto-sensor pairs, compensation circuitry and rugged aluminum housing assure continuous, reliable operation in industrial environments over a 0° to 70° C temperature range.
The electrical outputs are designed to be compatible with most instruments, electronic counters, PLC’s and other similar industrial motion control devices. Optional differential line driver outputs allow for longer cable runs (hundreds of feet) and higher electrical noise immunity.
The model RJ is designed with 3/8″ bearings and shaft, seals at the shaft, heavy duty aluminum enclosure with environmental seals, and sealed circular connector.
Resolutions from 1 to 1200 counts per revolution are available in single output, dual output (quadrature), and with optional zero reference (index output). We also produces many customized models having 1, 2 or 3 independent outputs with any combination of counts per revolution (up to 360) on each output (call for information).
A variety of accessories and customized configurations are available including 1 foot or 30 cm. circumference measuring wheels, mounting adapters (including a 2-1/2 square flange), special shaft lengths and diameters, and flexible couplings.
Industry Use
| Conveyor Manufacturers | Printing and Labeling | Custom Machine Builders | Packaging |
| Material Handling |
Product Documentation |
Additional Information |
 DatasheetDrawings |
Output Types Counts per Revolution Options Anti-Jitter Option Supply Voltage Options Output Circuits |
Modified Versions
| Modification | Description | |
| M75 | 1″ shaft length, 1/2″ shaft diameter, MB-75 adapter, ECCI ON25-1024… compatible | Datasheet |
| M76 | .7″ shaft length, 3/8″ shaft diameter, MB-76 adapter, ECCI PU871/PU876 compatible (see also M125) | Datasheet |
| M77 | 1″ shaft length, 1/2″ shaft diameter, woodruff key slot, MB-75 adapter, ECCI ON25-1024… compatible (see also M169) | Datasheet |
| M78 | 1.1″ shaft length, 1/2″ shaft diamter, MB-78 adapter, end connector, ECCI ON35-xxx-40/5-169 compatible | Datasheet |
| M80 | Modified connector wiring, ECCI PU863, PU868 compatible (see also M122) | Datasheet |
| M83 | .1″ shaft length, 1/2″ shaft diameter, MB-78 adapter, side connector, ECCI ON35-xxx-40/5-169 compatible | Datasheet |
| M89 | 1/2″ shaft length, 1/4″ shaft diameter, MB-75 adapter, ECCI OS25-…-40/5-A10 compatible | Datasheet |
| M90 | 2.5″ square flange (MB-FL), and 7-pin connector (see also M124 and M178) | Datasheet |
| M91 | 10 pin connector for A, B, Z differential line driver outputs | Datasheet |
| M92 | .6″ shaft length, 1/4″ shaft diameter, MB-78 adapter, ECCI PU861, PU866 compatible (see also M110) | Datasheet |
| M110 | .6″ shaft length, 1/4″ shaft diameter, MB-78 adapter, ECCI PU861, PU866 compatible (see also M92) | Datasheet |
| M112 | 21mm shaft length, 12mm shaft diameter, MB-75 adapter | Datasheet |
| M114 | 2-11/16″ shaft length, 3/8″ shaft diameter | Datasheet |
| M120 | 5PY adapter, ECCI PU871, PU876 compatible | Datasheet |
| M122 | Modified connector wiring, ECCI PU863, PU868 compatible (see also M80) | Datasheet |
| M124 | 1-5/16″ shaft length, 1/2″ shaft diameter, 2.5″ square flange (MB-FL), 7-pin connector. (see also M90 and M178) | Datasheet |
| M125 | .7″ shaft length, 3/8″ shaft diameter, MB-76 adapter, ECCI PU871/PU876 compatible (see also M76) | Datasheet |
| M129 | Encoder with 2 independent, single output circuits | Datasheet |
| M139 | Single output encoder with Enhanced Anti-Jitter feature | Datasheet |
| M169 | 1″ shaft length, 1/2″ shaft diameter, key slot, MB-75 adapter, ECCI ON25-1024… compatible (see also M77) | Datasheet |
| M178 | 1″ shaft length, 1/2″ shaft diameter, 2.5″ square flange (MB-FL) (see also M90 and M124) | Datasheet |
For our unsealed general purpose Shaft Encoder, please see our RG Shaft Encoder.