HFS-DO2
Digital Signal Converter
HFS-DO2 DIN-rail weighing-signal converter with a 0–20 mV input reference and RS485 communication.
- Nonlinearity
- ±0.3% FS
- Communication interface
- RS485
- Supply versions
- 12 V / 24 V
Supplied by WKSENSOR. Ask us about pricing, availability and delivery.
Product overview
The HFS-DO2 is a DIN-rail converter for weighing-signal acquisition and digital communication. The single-channel output configuration uses RS485; the pictured module identifies Modbus RTU and Free protocol references.
Weighing-signal conversion
A 0–20 mV input reference and RS485 digital communication in a DIN-rail enclosure. The front panel has a ZERO button and a DISP-labelled connector.
- Supply version
- 12 V or 24 V supply versions are offered. The pictured unit carries a 10–30 V DC supply reference.
- Digital interface
- RS485 communication with Modbus RTU or Free protocol references on the pictured unit.
Sensor-input terminals
Terminal legends run from left to right with the module upright.
- EXC+
- Excitation +
- EXC−
- Excitation −
- SHD
- Shield
- SIG+
- Signal +
- SIG−
- Signal −
- TEDS
- TEDS label
Technical reference
Specifications and options
| Parameter | Specification or option |
|---|---|
| Model | HFS-DO2 |
| Input reference | 0–20 mV |
| Communication interface | RS485 |
| Pictured protocol references | Modbus RTU / Free |
| Supply versions | 12 V / 24 V |
| Pictured unit supply | 10–30 V DC |
| Channel configuration | Single-channel output |
| Nonlinearity | ±0.3% FS |
| Operating temperature | −20–70 °C |
| Module protection | IP65 |
| Brand | WKSENSOR |
| Product reference | HH-809395681722 |
Application scenarios
The HFS-DO2 is intended for weighing-signal acquisition. Its application areas include the following industrial settings.
Other application areas include robotics, injection moulding and automotive production.
Water conservancy
Open treatment basins and access walkways.
Batching
Yellow hoppers beneath conveyor structures.
Lifting
A red crane at a waterfront lifting site.

