Checking DK20-25/A/110/124 from nameplate through commissioning
Pepperl+Fuchs DK20-25/A/110/124 is a print-mark contrast sensor used for recognizing print registration marks on moving material. This product page centers on the precise DK20-25/A/110/124 designation and practical fit decisions. Its shared montage is an illustrative category image, not a photograph of the exact variant. Confirm every site-specific electrical, mechanical and approval requirement against the current manufacturer's documentation before a purchase or changeover.
Technical data for the exact designation
| Technical item | Verified value / selection note |
|---|---|
| Exact model | DK20-25/A/110/124 |
| Product role | print-mark contrast sensor |
| Operating distance | 25 mm ±6 mm |
| Illumination | Visible red, green and blue LED |
| Output | Push-pull switching output |
| Connection | M12 plug |
| Variant check | Confirm the complete designation and current manufacturer documentation before replacement. |
Service brief
Use DK20-25/A/110/124 for recognizing print registration marks on moving material. A service technician should identify the upstream and downstream interfaces before disturbing the connection.
Before the change
For DK20-25/A/110/124, test actual mark/background contrast and teach-in conditions rather than treating this as an ultrasonic device. Record the installed nameplate, matching device, space envelope and existing configuration. An appearance match is only a starting point: signal direction, power, interface and certification must be considered separately.
After the change
With DK20-25/A/110/124 installed, run the production web at operating speed and verify mark capture. Compare observed values with a known test condition and record the controller or diagnostic response. Repeat at the relevant operating limits so that an intermittent wiring or setup problem does not go unnoticed.
Supply-chain check
For a DK20-25/A/110/124 enquiry, retain the /A/110/124 suffix, optics and plug details. Provide the full label, circuit or mounting drawing and operating conditions. Ask for written confirmation before accepting any substituted suffix, especially when a related-looking code has different terminals, approval or function.
Related-looking designations
These names visually resemble DK20-25/A/110/124 and are grouped as identification references. They may differ in function, circuit values, mounting, communications and hazardous-area approval. Do not apply the technical values of DK20-25/A/110/124 to another complete designation without its own specification.
- DK20-9.5/110/124
- DK21-9,5/110/124/10-30 V DC, 418093
Final record
Keep the completed check with the maintenance history for DK20-25/A/110/124. If site conditions change, review the current datasheet and repeat the relevant electrical, mechanical and functional checks. The values in this page identify DK20-25/A/110/124 where stated; they do not define every visually related code.
