Banner EZ-Screen, Leuze MLC, Datalogic SE & Schmersal SLC Light Curtain Replacements — DAIDISIKE Equivalents

We already keep cross-reference notes for Omron, Keyence, SICK and Pilz curtains, because those are the brands customers most often arrive with. The next four names that come up — Banner, Leuze, Datalogic and Schmersal — deserve the same treatment, so here it is, built the same way: from each manufacturer's own published specifications, not from anyone's manual or marketing.

A blunt point before the detail. A “replacement” for a safety light curtain is not a part number you look up and drop in. It is a match on four numbers — resolution, protective field height, range, and output/OSSD scheme — followed by re-bracketing, re-pinning and a fresh ISO 13855 distance check. When those four numbers line up and the response time is equal or faster, there are still controller compatibility, geometry and validation checks to complete. A declared range limit must cover the actual opening.

How does a DAIDISIKE DQC replace a Banner EZ-SCREEN LS?

A proposed EZ-SCREEN LS substitute requires independent safety, detection and controller evidence; mechanical fit and range are only part of the comparison. Banner's EZ-SCREEN LS is a Type 4 curtain to IEC 61496, certified Category 4 / PL e (EN ISO 13849-1) and SIL3 / SILCL3 (IEC 61508 / IEC 62061), in three resolutions — 14 mm finger, 23 mm hand and 40 mm hand/body — with a maximum sensing range up to 12 m, EDM and cascading of up to four systems. Tubular models come in seven protective heights from 280 to 1050 mm, with 5-pin and 8-pin connector variants and an IP69-rated hygienic option.

For a DQC candidate, obtain the exact Type / PL / SIL evidence, certified detection capability, output circuit and worst-case response. Do not assume that a family-wide NPN/PNP label establishes dual-channel OSSD and EDM. Verify range independently: a DQT configuration documented to 6 m cannot replace an EZ-SCREEN installation operating at 12 m.

What is the DAIDISIKE equivalent of a Leuze MLC 500?

Check the original MLC model before choosing a substitute; no family-wide DQC or DQT equivalence is established. Leuze's MLC 500 is the Type 4 member of the MLC family. Check the label first, because the MLC 300 sold alongside it is only Type 2, and the two are not interchangeable for a Type 4 guarding job. The MLC 500 comes in 14, 20, 30, 40 and 90 mm resolutions, with operating ranges that track resolution (about 0–6 m at 14 mm, 0–14 m at 20 mm, 0–9 m at 30 mm, and 0–20 m at 40 and 90 mm). It uses two PNP OSSD outputs, 24 V DC ±20%, a response time around 23 ms at 14 mm, and protective field lengths from 150 to 3000 mm. Emitter and receiver can run on cables up to 100 m.

At shorter ranges a DQC candidate still needs documented detection capability, safety performance and controller compatibility. A nominal response comparison alone does not keep the positioning conservative because configuration, machine stopping time and reach allowances also matter. For an MLC application operating toward 20 m, a 6 m DQT option is outside scope; request an independently documented long-range candidate.

Is there a DAIDISIKE alternative to the Datalogic SE4 / SE4-Plus?

Treat SE4 / SE4-Plus replacement as an exact-model comparison, not an assumed DQC output-interface match. Datalogic's SE4 / SE4-Plus (SafEasy) is a Type 4 family in 14 mm finger and 30 mm hand resolutions, with operating range up to roughly 6 m for finger and up to about 15 m for hand depending on model. The SE4-Plus carries 2 PNP OSSD outputs (2 NPN on request), 24 V DC ±20% supply and integrated EDM, with blanking and master/slave cascade models. Datalogic also markets the SG4 Type 4 through-beam multibeam family for finger and hand detection alongside the SE4 series.

Compare the DQC candidate against the exact SE4 / SE4-Plus manual, including pulse timing, output polarity and which device implements feedback and reset. Do not assume functional equivalence at the connector or infer safe outputs from cable-core count. If the original is SG4, use its actual order code: the SG4 designation does not by itself identify a discrete multibeam PAC configuration.

Can I replace a Schmersal SLC 440 with a DAIDISIKE curtain?

For finger and hand protection, yes; mind two real differences — the SLC 440 is IP67 versus the DQC's IP65, and its on-board display and blanking set are Schmersal-specific. The Schmersal SLC 440 is a Type 4 curtain in 14 mm and 30 mm resolutions, with protective field heights dependent on the exact standard or enclosure variant, two OSSD outputs, and an integrated 7-segment message display. Its standard feature set includes fixed and floating blanking, blanking with a movable edge, double reset, contactor control (EDM), beam coding, and automatic / restart-interlock modes, rated up to IP67.

Retain the original SLC 440 functions the machine depends on, including any blanking, contactor feedback and restart interlock. Request exact DQC safety and output evidence before comparing those functions. Match the required ingress rating and test conditions; a generally sealed housing or IP65 specification is not evidence of IP67 capability.

Which DAIDISIKE model matches which curtain?

These candidate families need exact-model evidence before matching any original detection capability, range or safety interface. This table is a starting map from public specs, not a drop-in part number. Always confirm against the original unit's datasheet.

Across these brands, compare detection capability, active height and the complete safety interface before proposing a DQC candidate. Important differences include range, housing tests, diagnostics, reset and blanking. Use the Omron F3SG-SR comparison as another example of a parameter-by-parameter review, not proof that one model replaces all brands.

Is naming these brands legal, and how do you keep the comparison honest?

Naming a competitor's product to describe a compatible alternative is nominative reference and is legitimate; the comparison stays honest by using only each vendor's published specs. We reference Banner, Leuze, Datalogic and Schmersal by name to tell you what the DAIDISIKE equivalent is — that is normal, lawful comparison. What we deliberately do not do: we don't reproduce their operating manuals, we don't use their trademarks or logos as our own, and we don't quote a parameter we can't confirm from their public datasheet. Every figure above is from the manufacturer's own specifications. The DAIDISIKE figures are from our spec sheets. If a number isn't verifiable, it isn't in the table — which is also why a couple of the entries above say “confirm against the original unit” rather than pretending to a precision we don't have for your specific build.

Send us the four numbers off your installed curtain — resolution, protective height, range, output type — plus the connector and supply voltage, and we will tell you the DQC or DQT that matches, or tell you plainly if it doesn't. Our full method and the other brand cross-references live in the brand replacement & compatibility guide.

Feature compatibility is model-specific. Banner's LS documentation distinguishes connector variants and external EDM arrangements; Leuze's muting matrix distinguishes sensor-integrated and controller functions. Transfer every function the original machine relies on into the replacement specification.