OMRON: Digital Panel Meters – K3HB-R Digital Indicators

May 21, 2026
OMRON K3HB-R Digital Indicators: Rotary Pulse Indicators Capable of 50kHz Measurements
OMRON’s K3HB-R Digital Indicators with digital input feature a clear and easy-to-use colour-change display. All models are equipped with an IP66 housing. K3HB-R is high speed, with a sample rate up to 50kHz.
- Position meter indication for easy monitoring
- Optional DeviceNet, RS-232C, RS-485
- Double display, with 5 digits, in two colours
- Dimensions: H 48 x W 96 x D 100mm

Harsh Environment
Control products can be subjected to harsh environments where they can be splashed during the process or covered in dust or get warm through their location. The E5CN, E5CSV, H7CX, H5CX and K3HB all feature a NEMA 4X (IP66 equivalent) front panels so are suitable for the use in these applications, also the low-profile fascia means that they are less prominent in the front of the panel and so less likely to become dirty.
Speed Matching Conveyors
Speed matching between two separate conveyors ensures the correct transfer of materials. In this case if the belts are at different speeds the boxes will either fall forward or backwards. By comparing the two belt speeds a linear output from the K3HB can be used to adjust one conveyors speed to ensure matching and smooth transfer.
Specifications
| Data Transmission Output | RS-485, RS-232, DeviceNet |
| Display | Single Line |
| Display Range | -19999 to 99999 |
| Output type | Relay, Linear Current, Linear Voltage, BCD+transistor |
| Rotary Pulse | Yes |
| Size | 1/8 DIN |
| Special function | Two Color Change Display, Six Measurement Operations: RPM, Circumferential Speed, Ratio and Cumulative |
| Model: | K3HB-RNB 100-240VAC | K3HB-RNB 24VAC/VDC | K3HB-RPB 100-240VAC |
|---|---|---|---|
| Special function | Two Color Change Display, Six Measurement Operations: RPM, Circumferential Speed, Ratio and Cumulative | Two Color Change Display, Six Measurement Operations: RPM, Circumferential Speed, Ratio and Cumulative | Two Color Change Display, Six Measurement Operations: RPM, Circumferential Speed, Ratio and Cumulative |
| Size | 1/8 DIN | 1/8 DIN | 1/8 DIN |
| Rotary Pulse | Yes | Yes | Yes |
| Display | Single Line | Single Line | Single Line |
| Input sensor | NPN | NPN | PNP |
| Output type | Relay, Linear Current, Linear Voltage, BCD+transistor | Relay, Linear Current, Linear Voltage, BCD+transistor | Relay, Linear Current, Linear Voltage, BCD+transistor |
| Data Transmission Output | RS-485, RS-232, DeviceNet | RS-485, RS-232, DeviceNet | RS-485, RS-232, DeviceNet |
| Display Range | -19999 to 99999 | -19999 to 99999 | -19999 to 99999 |
| Supply voltage | 100 to 240 VAC | 24 VAC/VDC | 100 to 240 VAC |
| Model: | K3HB-RPB 24VAC/VDC |
|---|---|
| Special function | Two Color Change Display, Six Measurement Operations: RPM, Circumferential Speed, Ratio and Cumulative |
| Size | 1/8 DIN |
| Rotary Pulse | Yes |
| Display | Single Line |
| Input sensor | PNP |
| Output type | Relay, Linear Current, Linear Voltage, BCD+transistor |
| Data Transmission Output | RS-485, RS-232, DeviceNet |
| Display Range | -19999 to 99999 |
| Supply voltage | 24 VAC/VDC |
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