DQR Waterproof Safety Light Curtain (IP68)

Name: DQR Waterproof Safety Light Curtain
Brand: DAIDISIKE
SKU: DQR-SERIES

Waterproof safety light curtain for harsh and outdoor automation. Resolutions 10/14/20/25/30/40/80 mm and protective heights 50–2480 mm. Ordered as DQRF with the waterproof outer cover it is rated IP68; without the cover (plain DQR) it is IP65. Transistor outputs with NPN/PNP and NO/NC selection (order suffix A/B/C/D), two 5-core or two 7-core cables through an M12 waterproof connector. Detection distance and response time are not published for this series — contact the factory.

View Detailed DQR Series

DQR dimensions and installation — Dimensions & installation

DQR waterproof safety light curtain in outdoor / humid application — Outdoor / humid application

Safety light curtain — installation and operation — video thumbnail — Watch on YouTube

Product Highlights

IP68 with the DQRF cover: the F suffix adds the waterproof outer cover for immersion-grade sealing; without it the plain DQR is IP65 — order the right one for the environment.
M12 waterproof aviation connector: keeps the seal intact where a standard connector is the first thing to fail outdoors.
Solid-state outputs: transistor, NPN/PNP and NO/NC selectable by order suffix A/B/C/D; short-circuit and overload protected.
Simple wiring: two 5-core or two 7-core cables.
Widest pitch range of the waterproof series: K = 10/14/20/25/30/40/80 mm, n = 4–32, protective heights 50–2480 mm.
DQF-07 mounting supplied as standard: top/bottom fixing, or two-end mounting on the DQRF.

The DQR is a through-beam AOPD designed with reference to IEC 61496 and to the machinery-safety standards ISO 13849 / ISO 13855. DAIDISIKE has not published a type classification (Type 2 / Type 4) or a performance level for this series, so none is stated here — request the current test documentation from the factory before specifying it into a rated safety function, or use the DQT4 series where the rating has to be documented. The final PL/SIL of the complete safety function is validated by the integrator in any case.

Resolution & Application Guide

Resolution (K)	Typical Application
10 / 14 mm	Finger protection (assembly, fixtures, close-to-hazard)
20 / 25 / 30 mm	Palm/hand protection (packaging, access openings)
40 / 80 mm	Arm/body presence (aisles, outdoor perimeters)

Protective height H = (n − 1) × K. Model naming below uses this rule.

Technical Parameters (DQR Series)

Category	Item	Typical Value / Option	Notes
Optical	Operating principle	Through-beam infrared LED, modulated	Emitter/receiver pair
	Resolution (beam pitch K)	10 / 14 / 20 / 25 / 30 / 40 / 80 mm	Finger → body detection
	Protective height (H)	H = (n−1) × K; 50–2480 mm	n = number of beams (4–32)
	Detection accuracy	Follows beam pitch (finest 10 mm)	See model list
	Response time	Contact factory	Not published for the DQR series
	Detection distance	Contact factory	Not published for the DQR series
Electrical / I/O	Outputs	Transistor, NPN/PNP signal selection	Suffix A = NPN NC, B = PNP NC, C = NPN NO, D = PNP NO
	Wiring	Two 5-core or two 7-core cables	Per build
	Connector	M12 waterproof aviation connector	Outdoor-grade
	Supply voltage	Contact factory	Not published for the DQR series
Mechanical / Environment	Ingress protection	IP68 as DQRF (with waterproof cover); IP65 as plain DQR	The F suffix is the waterproof outer cover
	Body section / material	Contact factory	Not published for the DQR series
	Operating temp.	Contact factory	Not published for the DQR series
	Mounting	DQF-07 (standard)	Top/bottom fixing; two-end mounting for DQRF
Compliance	Standards	Through-beam AOPD designed with reference to IEC 61496; safety distance per ISO 13855	No type class (Type 2/4) or performance level is published for this series — confirm with the factory
Compliance	System integration	Safety relay / Safety PLC	Independent dual inputs; EDM support

DQR Series Detailed Specifications

Model format: DQRnn/K-H. Example: DQR06/10-50 (K=10, n=6, H=50). The 2026 catalogue lists the same table with the DQRF prefix (DQRF06/10-50) — add the F when you need the IP68 waterproof cover. Output code A/B/C/D for PNP NO / PNP NC / NPN NO / NPN NC.

K (mm)	Beams n	Protective Height H (mm)	Model Example	Detection Distance
10	6	50	DQR06/10-50	Contact factory
10	8	70	DQR08/10-70	Contact factory
10	10	90	DQR10/10-90	Contact factory
10	12	110	DQR12/10-110	Contact factory
10	14	130	DQR14/10-130	Contact factory
10	16	150	DQR16/10-150	Contact factory
10	18	170	DQR18/10-170	Contact factory
10	20	190	DQR20/10-190	Contact factory
10	22	210	DQR22/10-210	Contact factory
10	24	230	DQR24/10-230	Contact factory
10	26	250	DQR26/10-250	Contact factory
10	28	270	DQR28/10-270	Contact factory
10	30	290	DQR30/10-290	Contact factory
10	32	310	DQR32/10-310	Contact factory

Model suffix A/B/C/D for output type: PNP NO / PNP NC / NPN NO / NPN NC. Add the F after DQR (DQRF06/10-50) when you need the IP68 waterproof cover. Detection distance is not published in the DQR catalogue data — contact the factory to confirm the operating range for your span.

Typical Applications

Outdoor / humid lines: the DQRF's IP68 cover suits washing stations, door gates and logistics lines.
Presses / shears / press brakes: 10–30 mm resolutions for finger and hand protection.
Perimeter guarding: 40–80 mm for aisle and presence detection.
General machinery: integrate with a safety relay/PLC for stop, interlock and EDM monitoring.

Safety distance reference (ISO 13855): S = K × T + C, where T is machine stopping time.

Installation & Accessories

Standard kit: data cable, T-bolts, emitter & receiver, and the DQF-07 mounting set (top/bottom fixing; two-end mounting on the DQRF). Connector: M12 waterproof aviation plug.

Resolutions: 10/14/20/25/30/40/80 mm; choose protective height H by beams n.

Working Principle

The DQR series uses through-beam infrared photoelectric sensing to form a virtual protective field. When any beam is interrupted, the receiver switches its safety outputs to OFF and the safety relay/PLC removes motive power. Built-in self-diagnostics and EDM enhance system reliability; restart interlock ensures safe recovery after clearing the hazard.

Frequently Asked Questions

Do I need DQR or DQRF — what is the difference, and which one is IP68?

Order the DQRF when you need IP68. The 'F' suffix denotes the added waterproof outer cover; without it the curtain is a plain DQR, rated IP65. IP68 means fully dust-tight and protected against continuous immersion, which is what wet, washdown and outdoor lines need; IP65 only covers dust and water jets. The 2026 catalogue lists all model numbers with the DQRF prefix (for example DQRF06/10-50), and the DQR version is the same model without the cover. Note that IP69K — high-pressure, high-temperature jet resistance for food and beverage plants — is a different rating again and is not claimed for this series.

What safety type / performance level does the DQR carry?

The DQR is a through-beam opto-electronic protective device (AOPD) — a product category designed with reference to IEC 61496 and to the machinery-safety standards ISO 13849 / ISO 13855. DAIDISIKE has not published a type classification (Type 2 / Type 4) or a performance level for the DQR series, so none is claimed here; request the current test documentation from the factory before specifying the DQR into a rated safety function. Where a documented Type 4 / PL e / SIL 3 device is required, use the DQT4 series.

Can the DQR replace an Omron, SICK deTec or Keyence outdoor safety light curtain?

In many cases yes, mechanically. The DQR covers the common resolutions (10/14/20/25/30/40/80 mm) with NPN/PNP transistor outputs, so it drops into the same safety loop, and the DQRF's IP68 cover plus M12 waterproof connector make it a fit where standard IP65 curtains fail outdoors. Confirm mounting length, resolution and the required operating distance against the unit being replaced, and where the original carried a certified Type/PL rating, confirm the equivalent documentation with the factory.

How do I wire the DQR outputs to a PLC or safety relay?

The DQR uses transistor outputs ordered by model suffix: A = NPN NC, B = PNP NC, C = NPN NO, D = PNP NO, with two 5-core or two 7-core cables through an M12 waterproof connector. Feed the channels into a dual-channel safety relay or safety PLC input, then route the EDM/feedback loop through the relay's forcibly-guided contacts so a welded contact is detected on restart. Choose the polarity that matches your controller's input common.

How do I calculate the minimum safety distance for the DQR?

Use ISO 13855: S = K × T + C, where K = 2000 mm/s (hand-speed constant), T is the machine stop time plus the curtain response time, and C is the intrusion factor derived from the resolution. Finer resolutions (10/14 mm finger protection) reduce C, allowing the curtain to be mounted closer to the hazard. The DQR response time is not published in the catalogue data — obtain the confirmed figure from the factory before you calculate T. Our ISO 13855 calculator handles the rest of the math.

Which resolution should I choose for finger, hand or body protection outdoors?

Pick by the smallest body part that can reach the hazard: 10–14 mm for finger protection, 20–30 mm for hand/palm protection, and 40–80 mm for arm or body presence and perimeter guarding. The DQR covers 10/14/20/25/30/40/80 mm, so one waterproof series handles presses, washdown stations and outdoor aisle protection.