SGX Integrated IR (INIR) Gas Sensor
The SGX Integrated IR (INIR) sensor is a user-friendly digital gas sensor designed with the latest infrared technology and an ARM7 core microcontroller. It offers enhanced reliability and minimizes fault probability through advanced software techniques. The INIR is engineered to reduce implementation time and increase productivity by incorporating necessary electronics and embedded software for operation from a low voltage DC power supply. It processes raw signals to output a linear, temperature-compensated signal proportional to the gas concentration, available in both digital and analog forms. This sensor significantly reduces development time and expertise required for gas detection instruments. The INIR can also be factory calibrated for immediate installation without recalibration.
Key Features:
- Triple Range operation with linear approximation for Carbon Dioxide (0-5%v.v) and Methane (0-5%v.v and 0-100%v.v).
- Automatic range switching between Low (0.0-1.0%v.v), Mid (1.0-4.0%v.v), and High (4.0%v.v and above).
- High Resolution up to 10ppm.
- Detectivity Level at 100ppm.
- Multi-sensor mode.
- Analog Output of gas concentration.
- Serial port communication (UART).
- Internal Temperature sensor.
- Active & Reference Signals Monitored.
- Full Faults Diagnostics & Error Generation.
- Cyclic Redundancy Check (CRC).
- Four Different Modes of Operation.
- Typical Low power consumption (< 32mA Average).
- Factory calibrated for Methane or Carbon Dioxide.
- Evaluation Kit available with PC software for testing and calibration.
- Easy implementation into Sensors Network.
- Designed for use in Hazardous Areas.
- Certified Sensor for use in Explosive Atmospheres (EX).
Recommended Applications:
- Mining
- Automation & Control
- Indoor Air Quality
- Industrial Health & Safety
Product Attributes:
- Brand: SGX Sensortech
- Origin: Poland
- Body Material: Stainless Steel
- Certifications: ATEX, IECEx (II 2G Ex db IIC Gb Ta -40oC to +75oC)
- Compliance: RoHS, WEEE
Technical Specifications:
| Specification | Min | Typical | Max | Notes |
|---|---|---|---|---|
| Absolute Maximum Ratings | ||||
| Supply Voltage | 3.2 VDC | 3.3 VDC | 5.25 VDC | |
| Average Current Consumption | 30mA | 32mA | 35mA | *Inrush Current can be up to 65mA |
| Logic Outputs Level | ||||
| LOW Voltage (VOL) | 0.6V | Maximum | ||
| HIGH Voltage (VOH) | 2.0V | Minimum 1.6mA source current maximum | ||
| Logic Inputs Level | ||||
| LOW Voltage (VINL) | 0.4V | Maximum | ||
| HIGH Voltage (VINH) | 2.0V | Minimum | ||
| Humidity | ||||
| Operating Humidity | 0% | 50% | 99% | Condensation affects performance; algorithms implemented to minimize effect. |
| Storage Humidity | 0% | 50% | 90% | |
| Temperature | ||||
| Operating Temperature | -40 C | +20 C | +75 C | |
| Storage Temperature | -20 C | +20 C | +55 C | |
| Pressure | ||||
| Operating Pressure | 80kPa | 120kPa | Compensation will be required. | |
| Storage Pressure | 80kPa | 120kPa | ||
| Performance | ||||
| DAC Resolution | 12-Bit at 0.0-2.5 Volts DC | Max Scalable according to Gas Conc. | ||
| Digital Signal Format | 8 data bits, 1 stop bit, no parity | |||
| Baud Rate | 38400 (default) | 115200, 19200, 9600 | ||
| Dimensions | ||||
| Diameter (D) | 19.9mm | 20mm | 20.1mm | |
| Height (H) | 16.50mm | 16.60mm | 16.70mm | |
| Pins Height (pH) | 4.0mm | 4.8mm | 5.6mm | |
| Weight | 25 g | 29 g | 33 g | |
| Pin Configuration | ||||
| Pin 1 | TXD (Data transmitted from the Integrated IR) | |||
| Pin 2 | +VCC (3.2 - 5.25 Volts DC input) | |||
| Pin 3 | GND (0 Volts reference) | |||
| Pin 4 | RXD (Data received by the Integrated IR) | |||
| Pin 5 | OUT (Analog Output, Scalable range) | |||
| Pad | Bootloader Pad (Not used by customer) | |||
| Warm-Up Time | ||||
| 45 seconds | After power ON or mode change. Data not valid during this time. | |||
| Typical Performance Characteristics (Calibrated sensor, 20C, 10% RH, 101kPa, 500-1000 ml/min Gas Flow) | ||||
| Stabilisation or Warm-up Time (EN) | 45 seconds | 0%v.v 0.1%Vol (CO2), 0%v.v 0.01%Vol (Methane) | ||
| Calibration Curve / Basic Error (AQ) | 0.06%v.v or 6% of Reading | 0-100% range (Methane), 0-5% range (CO2) | ||
| Short Term Stability (AQ) | 0.005%v.v (0%v.v) | Methane: 0%v.v 0.005%v.v, 5%v.v 0.1%v.v, 100%v.v 1%v.v. CO2: 0%v.v 0.002%v.v, 5%v.v 0.05%v.v. | ||
| Minimum Resolution (AQ) | 0.002%v.v | 0-5%v.v range (Methane). 0-2%v.v (CO2). | ||
| Response Time (T90, without dust filter) | Approx. 18 sec | Max 30 sec | ||
2411261541_Amphenol-INIR-ME100-_C1139051.pdf
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