7R+ PID sensor is a self contained intelligent sensor module with built-in sensor processor, lamp driver, analog and digital interface circuits. It is designed to detect volatile organic compound (VOC) with a standard external interface. It allows the sensor module to be easily integrated into a wired or wireless communication system for remote, wide area and pervasive monitoring applications. The sensor module can be powered by typical 5VDC. It is housed in a stainless steel enclosure with a standard 8 pins interface connector.
Key Features
- Auto identification
- High resolution: 0.1 ppm
- Quick response time
- Analog & Digital signal output
- Wide measurement range
- Digital output (RS-232 signal Tx, Rx at TTL level)
- Suitable for both mobile and fixed monitoring applications
- Low maintenance and service support cost
- Easily integrated into existing monitoring system
- Highly resistant to RFI/EMI interference
- IECEx/UL/ATEX certification (Pending)
- Less than 500 mW power consumption
Applications
- Public transportation facility, airport, train station, subway tunnels, etc
- Hazardous material transportation
- Refinery and Oil & gas exploration
- Power plants, chemical plants, storage tanks, etc
- Chemical lab and Archaeological Museum
- Military installations
- Industrial safety
- Emergency response & Industrial safety application
- Refinery and Oil & gas exploration
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Specifications
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Interface Pin Function:
| Pin | Name | Function |
| 1 | Vcc | Power supply, 4.7V‐5.5VDC |
| 2 | CS | Reserved for chip selection for communication |
| 3 | Analog | Analog signal output: 0—2.5V DC |
| 4 | RxD | Receive data, 3.3V TTL |
| 5 | OpenDrain | Reserved for switch signal output |
| 6 | Gnd | Ground |
| 7 | Sdep | Sensor module dependent, 0‐0.6V means turn off the power, 2.2‐ 3.3V means turn on. |
| 8 | TxD | Transmit data, 3.3V TTL |
