← Inductive and Capacitive Sensors
Compact Inductive Proximity Sensor GA-311/GH
Panasonic — GA-311/GH Series
An amplifier-separated inductive proximity sensor system: a small cylindrical sensor head (GH series, from 2.8 mm diameter) connects via quick-connection cable/connector to a separate GA-311 amplifier unit. Designed for tight installation spaces and high-speed sensing where a bare cylindrical head is preferable to an all-in-one body.
Key Features
- High-speed 3.3 kHz response frequency amplifier
- 5 interchangeable sensor head models, including a spatter-resistant type
- IP67G oil-resistant sensor heads (except GH-2SE)
- Quick-connection cable/connector shared with digital fiber and laser sensors
- Disconnection alarm indicator plus separate operation indicator
- Up to 16 amplifier units can be cascade-connected
Detailed Parameters
| Supply Voltage | 12-24 V DC ±10% |
| Current Consumption | 25 mA or less |
| Output | NPN open-collector, max. 100 mA |
| Max. Response Frequency | 3.3 kHz |
| Max. Operation Distance (GH-2SE/3SE/5SE/8SE) | 1.2 / 1.8 / 2.4 / 4.0 mm |
| Protection Rating | IP67 (IEC), IP67G (except GH-2SE) |
| Ambient Temperature | -10 to +60°C |