PANASONIC CX-491 — Retro-Reflective Sensors
Panasonic CX-491: polarized retro-reflective photoelectric sensor, 3 m, IP67.
Status: In production
Brand: Panasonic
Product: Polarized retro-reflective photoelectric sensor
Sensing range: 3 m
Output: NPN open-collector transistor
Response time: 1 ms or less
Protection: IP67
CX-491 is the retroreflective model with polarizing filters in Panasonic’s CX-400 Ver.2 compact photoelectric sensor series; thanks to the polarizing filters it also detects specular (mirror-like) objects, and it is supplied with an RF-230 reflector. Sensing range: 3 m. Sensing object: Ø50 mm or more opaque, translucent or specular object. Emitting element: red LED.
Output: NPN open-collector transistor; switchable either Light-ON or Dark-ON. Response time: 1 ms or less. Supply: 12 to 24 V DC ±10 %, ripple P-P 10 % or less. Degree of protection IP67, operating temperature −25 to +55 °C. Connection: 0.2 mm² 3-core cabtyre cable, 2 m.
Panasonic CX-491 technical specifications
| CX-491 | |
|---|---|
| General | |
| Product | Compact photoelectric sensor |
| Type | Retroreflective (with polarizing filters) |
| Regulations / certifications | CE (EMC, RoHS), UKCA (EMC, RoHS), UL Recognition |
| Sensing | |
| Sensing range | 3 m · with the RF-230 reflector; actual sensing range |
| Sensing object | Ø50 mm or more opaque, translucent or specular object |
| Repeatability (perpendicular to axis) | 0.5 mm or less |
| Sensitivity adjuster | Continuously variable adjuster |
| Automatic interference prevention | Incorporated (two units can be mounted close together) |
| Emitting element (modulated) | Red LED |
| Peak emission wavelength | 680 nm |
| Electrical characteristics | |
| Supply voltage | 12 to 24 V DC ±10 %, ripple P-P 10 % or less |
| Current consumption | 13 mA or less |
| Output and indicators | |
| Output | NPN open-collector transistor · Maximum sink current: 100 mA · Applied voltage: 30 V DC or less · Residual voltage: 2 V or less (at 100 mA), 1 V or less (at 16 mA) |
| Output operation | Switchable either Light-ON or Dark-ON |
| Short-circuit protection | Incorporated |
| Response time | 1 ms or less |
| Operation indicator | Orange LED (lights up when the output is ON) |
| Stability indicator | Green LED (lights up under stable light received or stable dark condition) |
| Environmental | |
| Degree of protection | IP67 (IEC) |
| Ambient temperature | −25 to +55 °C (no dew condensation or icing) · storage −30 to +70 °C |
| Ambient humidity | 35 to 85 % RH (storage 35 to 85 % RH) |
| Ambient illuminance | Incandescent light: 3,000 lx or less at the light-receiving face |
| Voltage withstandability | 1,000 V AC for one min. between supply terminals and enclosure |
| Insulation resistance | 20 MΩ or more with 250 V DC megger (supply terminals to enclosure) |
| Vibration resistance | 10 to 500 Hz, 1.5 mm amplitude (10 G max.), X/Y/Z for two hours each |
| Shock resistance | 500 m/s² (50 G approx.), X/Y/Z three times each |
| Mechanical and connection | |
| Material | Enclosure: PBT · Lens: acrylic · Indicator cover: acrylic |
| Cable | 0.2 mm² 3-core cabtyre cable, 2 m |
| Cable extension | Up to total 100 m with 0.3 mm² or thicker cable |
| Weight | Net weight approx. 50 g · Gross weight approx. 80 g |
| Supplied accessories | RF-230 reflector: 1 pc. |
Key features
- 3 m
- NPN open-collector transistor
- 1 ms or less
- IP67 (IEC)
CX-491 ordering codes
| Part number | Description |
|---|---|
| CX-491 | NPN output |
| CX-491-P | PNP output |
Other Panasonic Retro-Reflective Sensors
- PANASONIC CX-493 — Retro-reflective photoelectric sensor
- PANASONIC CX-481 — Retro-reflective sensor for transparent objects
- PANASONIC CX-483 — Retro-reflective sensor for transparent objects
- PANASONIC CX-482 — Retro-reflective sensor for transparent objects
Models from other brands: Retro-Reflective Sensors
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All product specifications are subject to change without notice. Data compiled from the specification tables (Spec Detail) on Panasonic Industry’s industry.panasonic.com model pages: CX-491, CX-491-P.