Reflex Sensor with Background Suppression
HT77PA3
- Adjustable Time Delay
- Infrared Light
- Plug can be rotated
- Triple Beam Correction Principle
These sensors are particularly well suited for recognizing objects in front of any type of background. The color, shape and surface characteristics of the object have practically no influence on sensor switching performance.
Optical Data
| Range | 1500 mm |
| Adjustable Range | 300...1500 mm |
| Switching Hysteresis | < 5 % |
| Light Source | Infrared Light |
| Service Life (T = +25 °C) | 100000 h |
| Risk Group (EN 62471) | 1 |
| Max. Ambient Light | 10000 Lux |
| Light Spot Diameter | see Table 1 |
Electrical Data
| Supply Voltage | 10...30 V DC |
| Current Consumption (Ub = 24 V) | 40 mA |
| Switching Frequency | 300 Hz |
| Response Time | 1700 µs |
| Off-Delay | 0...1 s |
| Temperature Drift | < 5 % |
| Temperature Range | -25...60 °C |
| Switching Output Voltage Drop | < 2,5 V |
| PNP Switching Output/Switching Current | 200 mA |
| Short Circuit Protection | yes |
| Reverse Polarity Protection | yes |
| Overload Protection | yes |
| Protection Class | III |
Mechanical Data
| Housing Material | Plastic |
| Degree of Protection | IP67 |
| Connection | M12 × 1; 4-pin |
Output
| PNP NO/NC antivalent | yes |
Table 1
| Detection Range | 300 mm | 800 mm | 1500 mm |
| Light Spot Diameter | 6 mm | 18 mm | 30 mm |
Connection Diagram
Switching Distance Deviation
Typical characteristic curve based on Kodak white, 90 %
- Sr = Switching Distance
- dSr = Switching Distance Change
 |
black 6 % |
 |
grey 18 % |
Ctrl.Panel
- 01 = Switching Status Indicator
- 05 = Switching Distance Adjuster
- 11 = ON-Delay/ OFF-Delay Adjuster
- 32 = Contamination Warning/ Error Warning
Dimensioned Picture
All dimensions in mm (1 mm = 0.03937 Inch)
- 1 = Receiver Diode
- 2 = Transmitter Diode
- 3 = Receiver Diode
Data sheet
CAD Data
Connection Technology
Mounting Technology