Product Overview
The AGS0512 is a high-sensitivity, low-power, and fast-response R290 refrigerant gas sensor based on MEMS technology. It is designed for real-time monitoring of R290 gas concentrations in various applications, including household and automotive air conditioning, cold chain transportation, environmental monitoring, chemical industries, and refrigeration systems. Featuring a high-performance semiconductor silicon-based resistive sensing chip and advanced digital acquisition technology, the AGS0512 offers excellent long-term stability, strong anti-interference capabilities, and a long service life. It comes fully calibrated and tested for large-scale applications, providing a reliable and cost-effective solution for refrigerant leak detection.
Product Attributes
- Brand: ASAIR (Guangzhou Ausong Electronics Co., Ltd.)
- Model: AGS0512
- Refrigerant Type: R290
- Sensing Principle: MEMS
- Material: Silicon-based resistive sensing chip (metal oxide semiconductor)
- Interface: I2C
- Origin: China
Technical Specifications
| Parameter | Specification |
|---|---|
| Working Voltage | 4.75VDC 5.25VDC |
| Working Current | 24 4mA |
| Sampling Period | 2s |
| Measurement Range | 1%LEL 25%LEL (LEL for R290 is 2.1%, equivalent to 21000ppm) |
| Output Interface | I2C |
| Typical Accuracy (25/50%RH) | (1%LEL + 40%RD) |
| Preheating Time | 120s |
| Response Time (at 25%LEL) | 30 seconds |
| Working Temperature | -25 to 60 |
| Working Humidity | 20% 95%RH (non-condensing) |
| Dimensions (LWH) | 12mm 12mm 16.5mm |
| Weight | Approx. 2g |
| Lifespan | > 10 years (at 25, in clean air) |
| I2C Device Address | 0x1A (7-bit) |
| I2C Write Instruction | 0x34 |
| I2C Read Instruction | 0x35 |
| Communication Rate | 100kHz |
| CRC Algorithm | CRC8, Initial Value: 0xFF, Polynomial: 0x31 (x + x + x + 1) |
| Warranty | 12 months |
Pin Definitions
| Pin | Name | Description |
|---|---|---|
| 1 | VCC | Power Supply (5VDC) |
| 2 | SDA | Communication Data |
| 3 | GND | Power Ground |
| 4 | SCL | Communication Clock |
Dimensions
Diagram: See Figure 4 in the original document.
Tolerance Table:
| Dimension Range D/mm | Tolerance T/mm |
|---|---|
| 0.5 D 3 | 0.2 |
| 3 < D 6 | 0.3 |
| 6 < D 30 | 0.5 |
Important Notes
Warnings: Do not use this product in safety protection devices, emergency stop equipment, or any application where product failure could lead to personal injury, unless specifically authorized. Refer to the product datasheet and manual before installation, handling, use, or maintenance. Non-compliance may result in death or serious personal injury. Guangzhou Ausong Electronics Co., Ltd. disclaims liability for all compensation for such injuries and deaths, including costs, claims, and attorney fees.
Quality Assurance: Guangzhou Ausong Electronics Co., Ltd. provides a 12-month warranty from the date of shipment for the R290 refrigerant sensor, based on the technical specifications in the product manual. Defective products will be repaired or replaced free of charge. This warranty applies only to defects arising under recommended application conditions. The company makes no guarantees for applications in non-recommended scenarios or when integrated with non-company supplied products or circuits. Manuals are subject to change without notice. Guangzhou Ausong Electronics Co., Ltd. reserves the final interpretation rights.
2504101957_Aosong-AGS0512_C45354806.pdf
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