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
IEC 61496-1/-2 Type 4, EN ISO 13849-1 PL d/Cat.4
Safety distance per ISO 13855
Certifications
CE, UL, TÜV
Refer to certificates
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.
