Easy integration: Optical synchronization; M12 circular connectors; clear status indicators.
Multi-beam options: K = 10/14/20/25/30/40/80 mm; typical n = 4–32; optional muting/blanking.
DQR is designed to IEC 61496-1/-2 / EN 61496-3 Type 4 architecture and intended for use in EN ISO 13849-1 PL d / Cat.4 safety chains when integrated with a certified safety relay/PLC. CE-marked for EU market; tested to relevant standards. Specific third-party certificate numbers (where applicable) are available on request; final PL/SIL of the complete safety function is validated by the integrator.
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; optical sync
Resolution (K)
10 / 14 / 20 / 25 / 30 / 40 / 80 mm
Finger → body detection
Protective height (H)
H = (n−1) × K
n = number of beams (typ. 4–32)
Response time
≤ 15 ms
Depends on beam count
Ambient light immunity
≥ 10,000 Lux
Incidence ≥ 5°
Sensing range
0.3–3 m (standard); 0.3–6 m (optional)
Specify on order
Electrical / I/O
Supply
DC 12/24 V; AC 110–220 V (with controller)
Reverse/over-voltage protection
Safety outputs
Dual-channel NPN / PNP, NO/NC selectable (OSSD)
Short-circuit & overload protected
Channel capability
≤ 500 mA (sink/source)
Transistor output
Protections
Short / Over-current / Over-load / Reverse polarity
Auto recovery
Indicators
Power / Run / Blocked
Clear status LEDs
Connector
304 SS screw waterproof aviation connector (M12)
Outdoor-grade
Synchronization
Optical
Less wiring, high immunity
Mechanical / Environment
Body section
36 × 36 mm; Ø50 round end
Aluminum body; ABS reinforced ends
Ingress protection
IP68
Waterproof & dustproof
Operating temp.
−10 ~ +40 °C
Storage −25 ~ +55 °C
Humidity
Operating 35–85 %RH
Storage 35–95 %RH
Light source
Infrared LED (940 nm, modulated)
Anti-interference design
Compliance
Standards
Designed to IEC 61496-1/-2 Type 4 architecture; suitable for EN ISO 13849-1 PL d / Cat.4 safety chains
Final PL/SIL of the complete safety function validated by integrator per ISO 13855
Conformity
CE-marked for EU market; tested to relevant standards (specific third-party certificates available on request)
Refer to delivered documents
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). 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
Range
10
6
50
DQR06/10-50
0.3–3 m
10
8
70
DQR08/10-70
0.3–3 m
10
10
90
DQR10/10-90
0.3–3 m
10
12
110
DQR12/10-110
0.3–3 m
10
14
130
DQR14/10-130
0.3–3 m
10
16
150
DQR16/10-150
0.3–3 m
10
18
170
DQR18/10-170
0.3–3 m
10
20
190
DQR20/10-190
0.3–3 m
10
22
210
DQR22/10-210
0.3–3 m
10
24
230
DQR24/10-230
0.3–3 m
10
26
250
DQR26/10-250
0.3–3 m
10
28
270
DQR28/10-270
0.3–3 m
10
30
290
DQR30/10-290
0.3–3 m
10
32
310
DQR32/10-310
0.3–3 m
Model suffix A/B/C/D for output type: PNP NO / PNP NC / NPN NO / NPN NC. For 0.3–6 m builds, specify on order.
Typical Applications
Outdoor / humid lines: IP68 design for washing stations, door gates, logistics lines.
Presses / shears / press brakes: 10–30 mm resolutions for hand protection; fast stop distance.
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, brackets, emitter & receiver. Aviation plug: 304 stainless steel screw waterproof type (M12).
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 drives the dual OSSD outputs to OFF and the safety relay/PLC removes motive power. Optical synchronization simplifies wiring and improves immunity. Built-in self-diagnostics and EDM enhance system reliability; restart interlock ensures safe recovery after clearing the hazard.
Frequently Asked Questions
What does IP68 mean for an outdoor safety light curtain, and how is it different from IP67 or IP69K?
IP68 means the DQR is fully dust-tight and protected against continuous immersion in water beyond 1 m depth, making it suitable for wet, washdown and outdoor lines. IP67 only guarantees temporary immersion to 1 m, while IP69K adds high-pressure, high-temperature jet resistance for food and beverage factories. The DQR's 304 stainless steel screw waterproof connector keeps the seal intact outdoors.
Is the DQR a Type 4 / PL d safety light curtain?
The DQR is built to the IEC 61496-1/-2 Type 4 architecture with dual-channel OSSD and self-monitoring. The achieved Performance Level (up to PL d / Cat. 4 under EN ISO 13849-1) depends on the complete safety function — the curtain plus a certified safety relay or safety PLC with EDM feedback validated by the integrator.
Can the DQR replace an Omron, SICK deTec or Keyence outdoor safety light curtain?
In most cases yes. The DQR matches common resolutions (14/30 mm), 0.3–3 m range and dual PNP/NPN OSSD with EDM, so it drops into the same safety loop. Its IP68 rating and stainless waterproof connector make it a strong fit where standard IP65 curtains fail outdoors. Confirm mounting length and resolution against the unit being replaced.
How do I wire the DQR OSSD outputs with EDM to a PLC or safety relay?
Feed the two OSSD channels (PNP or NPN) 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. The DQR supports both NPN and PNP wiring; 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 (≤15 ms), 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. Our ISO 13855 calculator computes it for you.
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.
