fast response R454B refrigerant gas sensor with MEMS metal oxide semiconductor Aosong AGS0513 sensor
Product Overview
The AGS0513 is a high-sensitivity, low-power, and fast-response R454B refrigerant gas sensor based on MEMS technology. It is designed for real-time monitoring of R454B gas concentrations, featuring strong anti-interference capabilities and excellent long-term stability. Utilizing a high-performance semiconductor silicon-based resistive sensing chip and specialized digital module acquisition technology, this sensor offers high reliability, low power consumption, and a simple drive circuit. It is factory-calibrated and tested for large-scale applications in household and automotive air conditioning, cold chain transportation, environmental protection, chemical industries, and refrigeration systems.
Product Attributes
- Brand: ASAIR
- Model: AGS0513
- Refrigerant Compatibility: R454B
- Sensing Principle: MEMS, Metal Oxide Semiconductor
- Origin: Guangzhou Aosong Electronics Co., Ltd.
Technical Specifications
| Specification | Value |
|---|---|
| Working Voltage | 4.755.25VDC |
| Working Current | 244mA |
| Sampling Period | 2s |
| Measurement Range | 1%LEL25%LEL (LEL for R454B is 11.25% or 112500ppm) |
| Output Interface | I2C |
| Typical Accuracy (25/50%RH) | (1%LEL+40%RD) |
| Preheating Time | 120s |
| Response Time (at 25%LEL) | 30 seconds |
| Operating Temperature | -2560 |
| Operating Humidity | 2095%RH (non-condensing) |
| Dimensions (LWH) | 12mm 12mm 16.5mm |
| Weight | Approx. 2g |
| Lifespan | Over 10 years (at 25 in clean air) |
| I2C Device Address | 0x1A (7-bit) |
| I2C Write Command | 0x34 |
| I2C Read Command | 0x35 |
| I2C Communication Rate | 100kHz |
| CRC Calculation | CRC8, Initial Value: 0xFF, Polynomial: 0x31 (x^8 + x^5 + x^4 + 1) |
| Warranty | 12 months |
Important Notes & Warnings
- Avoid water splashing or immersion, as it can degrade performance or cause damage.
- Condensation on the sensitive material can lead to performance degradation.
- Freezing on the sensor surface can cause material layer cracking.
- Prolonged exposure to high concentrations of VOC gases (e.g., butane, hydrocarbons, hydrogen) can damage the sensor.
- High CO2 concentrations may slightly affect measurement accuracy.
- Avoid excessive airflow or direct airflow onto the sensor, as it can lead to inaccurate measurements.
- Do not exceed the working voltage (5.5VDC); reverse polarity can cause permanent damage.
- Avoid contamination from alkaline, acidic liquids, halogenated substances, or volatile silicon compounds.
- Long periods of power-off can cause reversible resistance drift; extended preheating may be required.
- Exposure to extreme conditions (high humidity, temperature, pollution) can severely impact performance.
- Frequent or excessive vibration and strong impacts can cause internal connection failures.
- Manual soldering is recommended (flux: chlorine-free resin; temperature: <250, time: <5s).
- When cleaning, prevent liquids from entering the sensor.
- Ensure sensor detection holes in instruments have access to external airflow.
- Use high-quality shielded cables for signal transmission.
- Continuous power supply is required for accurate measurements; intermittent power can lead to inaccuracies.
- DO NOT use this product in safety protection devices, emergency stop equipment, or any application where its failure could result in personal injury, unless specifically authorized.
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