PZ-LX101 Color Mark Sensor

Name: PZ-LX101 Color Mark Sensor
Brand: DAIDISIKE
SKU: pz-lx101-color-mark-sensor
Availability: InStock

NPN contrast sensor with switchable Light-ON/Dark-ON output for registration mark detection, 8-25 mm range.

PZ-LX101 Color Mark Sensor - product photo

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Technical Specifications

Output Type	NPN, single output, Light-ON / Dark-ON switch selectable
Sensing Range	8-25 mm
Supply Voltage	12-24 VDC
Operating Modes	MARK mode, C/C1 mode

Overview

PZ-LX101 is a single-output NPN contrast sensor, also known as a color mark or registration sensor, designed to detect a printed mark against its background by contrast. It is built for OEMs and machine builders integrating registration and positioning control into packaging, labeling, printing, and web-converting equipment, wherever a mark must be located reliably as material moves past the sensor.

The sensor offers two operating modes, MARK mode and C/C1 mode, each with its own rated response time, and a sensing range of 8-25 mm with a 17 mm depth-of-field window that gives installers tolerance for normal mounting-distance variation. A field-selectable Light-ON/Dark-ON output lets the same unit detect a dark mark on a light background or a light mark on a dark background without rewiring or reprogramming the PLC, and it runs on a 12-24 VDC supply compatible with common machine control voltages.

Features & Benefits

Dual Operating Modes

MARK mode and C/C1 mode give machine builders two selectable working modes on one sensor, each with its own rated response time, so a single part can be configured for different detection tasks.

Selectable Light-ON / Dark-ON Output

A switch lets the same sensor output on either a light mark on a dark background or a dark mark on a light background, so you don't need to rewire or change PLC logic when the print/material combination changes.

8-25 mm Sensing Range with Mounting Tolerance

A 17 mm depth-of-field window gives installers room to absorb normal mounting-distance variation without re-tuning the sensor for every line change.

Single NPN Output for Simple Integration

One NPN output keeps wiring and PLC interfacing straightforward for OEMs standardizing on NPN I/O.

12-24 VDC Supply

Matches the supply rails already used on most packaging and labeling machine control panels, simplifying power integration.

Applications

Bag-Making / Pouch Machines — Detects registration marks to synchronize cutting and sealing actions with the printed pattern position.

High-Speed Labeling Machines — Detects label print marks to trigger the label-placement mechanism at the right position.

Filling Lines — Detects print/registration marks to index containers or film as they move through the line, within an 8-25 mm mounting range.

Printing Machines / Slitters — Uses MARK mode contrast detection for registration mark sensing to keep the web aligned during printing and slitting.

Hygiene Products & Flexible Packaging Web-Converting Lines — The selectable Light-ON/Dark-ON output covers different print/background light-dark combinations without switching sensor models.

Models & Ordering Information

PZ-LX101 Series

PZ-LX101

NPN output, single output port, Light-ON/Dark-ON switch selectable.

How to Select

Confirm the target mounting distance falls within the 8-25 mm sensing range before specifying PZ-LX101.
PZ-LX101 provides a single NPN output with a Light-ON/Dark-ON switch; contact us to confirm availability of a PNP or NO/NC-switchable version if your project requires one.
Choose MARK mode for standard color-mark (contrast) detection; confirm the intended use case for C/C1 mode with us before specifying.
Verify that your control voltage falls within the 12-24 VDC supply range.
MARK mode and C/C1 mode have different rated response times; request confirmed response-time figures from us before specifying for high-speed lines.

📘 Need the full method? NPN vs PNP Sensor Outputs Explained

When NOT to specify the PZ-LX101 — and what to use instead

The PLC uses PNP (sourcing) inputs, or the line needs a single sensor switchable between NPN and PNP output.

Why not: PZ-LX101's confirmed datasheet lists NPN output only; a PNP or NO/NC-switchable version has not been confirmed for this model.

Use instead: The switchable JNS-W70/W500, which offers NPN/PNP switchable output on one unit, or a PNP-output color-mark sensor such as FS-S72P if its 18-28mm range fits the application.

The task is classifying or verifying an actual color among multiple variants, not detecting a printed mark by contrast.

Why not: PZ-LX101's MARK and C/C1 modes are built for mark/registration (contrast) detection, not multi-color discrimination.

Use instead: The CZ-V21 RGB color sensor for true color classification.

The sensor-to-material mounting distance is greater than 25mm, or the installation needs a longer standoff.

Why not: PZ-LX101's sensing range is 8-25mm, a short, close-mount design.

Use instead: The long-range JNS-W70/W500 for a large sensor-to-web gap.

Specifications we do not publish yet

We only publish a figure once we are confident it is true. The items below are still being validated through further testing and real-world customer feedback, so for now we would rather leave them open than guess. If one of them matters to your design, ask us for the latest validated status.

IP (ingress protection) rating has not been confirmed from current source material
Response time for MARK mode and for C/C1 mode is not confirmed as a final figure — available source material shows conflicting units (printed as μm, suspected to mean μs) and is not adopted until verified
Availability of a PNP or NO/NC-switchable variant has not been confirmed
Housing dimensions are not stated
Operating temperature range is not stated
Certification standards are not named; only stated as available on request
Cable length and connector type are not stated
Whether PZ-LX101 is the same product as a similarly named "JNS-LX101" referenced elsewhere (different sensing distance and output specification) has not been confirmed

Frequently Asked Questions

What is the sensing range of the PZ-LX101 color mark sensor?

The PZ-LX101 has an effective sensing (detection) distance of 8-25 mm.

What output type does the PZ-LX101 have?

The PZ-LX101 has a single NPN output. Output logic can be switched between Light-ON and Dark-ON to match dark-mark-on-light-background or light-mark-on-dark-background applications.

Does the PZ-LX101 support PNP output?

The confirmed datasheet source lists an NPN output only. A PNP or NO/NC-switchable version has not been confirmed for this model; please contact us to check current availability.

What operating modes does the PZ-LX101 offer?

It offers two operating modes, MARK mode and C/C1 mode, each with its own rated response time.

What is the supply voltage for the PZ-LX101?

12-24 VDC.

Can the PZ-LX101 handle both light-on-dark and dark-on-light printed marks without changing the sensor?

Yes. The sensor has a selectable Light-ON / Dark-ON output, so the same unit can be configured for either polarity via a switch, without rewiring or reprogramming the controlling PLC.

What industries typically use a color mark / contrast sensor like the PZ-LX101?

Typical applications include packaging machinery (bag-making, filling), labeling machines, printing/slitting equipment, and web-converting lines for products such as hygiene goods and flexible packaging, wherever a printed registration mark needs to be located relative to a moving material.

Is the PZ-LX101 certified or IP-rated for washdown or wet environments?

Certification documents are available on request. The ingress protection (IP) rating has not been confirmed from current source material; please contact us to confirm before specifying for washdown environments.

Works Well Together

On the same machine or line, PZ-LX101 is typically ordered together with: Photoelectric Sensors · Fiber Optic Sensors · Slot Sensors

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