Multi-turn Absolute Encoders
Interface | RS485 (Modbus RTU) | CAN | ||||
Model No. | BRT38-R0M | BRT50-R0M | BRT38-R0M | BRT38-C0M | BRT50-C0M | BRT38-C0M |
Shaft Type | Solid Shaft | Solid Shaft | Blind Hole | Solid Shaft | Solid Shaft | Blind Hole |
Shaft Diameter | 6mm | 8mm | 8mm | 6mm | 8mm | 8mm |
Body Diameter | 38mm | 50mm | 38mm | 38mm | 50mm | 38mm |
Waterproof | IP54, IP67 | IP54 | IP54, IP67 | IP54 | ||
Multi-turns | 24turns, 50turns, 99turns, 1287turns, 4968turns, 19872turns. | |||||
for IP68, the multi-turns are 24/ 50/ 100/ 528/ 1056turns. | ||||||
Resolution | 1024P/R(10bit),4096P/R(12bit) | |||||
Supply Voltage | DC5V, DC24V (DC9~30V) |
● Full-scale true multi-turn encoder composed of precision reduction gears, no battery needed, power-break memory; any position within the range is unique, even if there is interference or movement after power break, the number of turns will not be lost .
● All parameters can be set through the communication of the computer, and the zero position can be set at any position, so when installing the encoder, the equipment can stay at any position, the connecting shaft can be fixed without considering the rotation position of the encoder, and can be automatically corrected by a zeroing operation at the external lead or through RS485/CAN communication.
Mechanical Drawing
With All these Types of mounting shafts, the Absolute encoder is suitable for almost any application.

6mm Solid Shaft

8mm Solid Shaft

8mm Blind Hollow
Electrical Parameters
- Working Voltage: DC5V, 24V (DC9~30V)
- Working Current: 100mA
- Linearity: 0.1%
- Kernel refresh cycle: 50uS
- Baud Rate: 9600~115200 (default 9600)
- Station number/ address: 1~127(default 1)
- Electrical life: >100000h
- Interface: RS485 (Modbus RTU)
Mechanical parameters
- Shell/ flange material: Zinc-nickel coated steel/ Aerospace aluminum
- Shaft material: Stainless steel
- Bearing material: Bearing steel
- Maximum load of the Shaft: Axial 20 N, Radial 80 N
- Maximum mechanical speed: 1000RPM
- Starting torque: 0.006Nm
- Net Weight: <200g (include 1.2meter shielded wire)
Environment Parameters
- Operating temperature: -20 ~ + 85°C
- Storage temperature: -20 ~ + 85 °C
- Humidity: 98 % (No condensation)
- Waterproof (Shall): IP54
- WaterProof (Shaft, Bearing): IP65
Wiring Connection

Communicate Protocol | RS485 (Modbus RTU) |
Red wire | Power Supply |
Black wire | GND |
Yellow wire | Z0 |
Green wire | 485B |
White wire | 485A |
- Please pay attention to the voltage value (5V, 24V) on the encoder label before power on. Make sure to supply power accordingly.
- Set zero position: connect yellow wire to ground (black wire) more than 100mS.
- Please do not connect the yellow wire to anywhere during working except when it is needs to be set zero position.
- Restore the factory setting function: after power off, connect the yellow wire to ground (the black wire). Powered on again, it can be reset after 2 minutes, and separate the two wires after reset.
Software Interface
We provide RS485 host computer software, which is convenient for you to test directly on the PC.
For details, please refer to the file “How to use Briterencoder Software” on the download page.

Briterencoder Model Description
