Overview
The ZRT512C – B module is an intelligent refrigerant detection module based on infrared principle. It adopts the Non – Dispersive Infrared (NDIR) principle to detect refrigerants, having good selectivity and no oxygen dependence. This module is made by integrating mature infrared absorption gas detection sensors, micro – mechanical processing, and sophisticated circuit design into a compact and high – performance module. It is easy to operate and has excellent performance.
Key Features
- High sensitivity, high resolution, and fast response time.
- Low voltage power supply, RS485 communication.
- Temperature compensation, excellent linear output, outstanding stability, long service life.
- Resistant to water vapor interference, non – poisoning, and can directly replace catalytic combustion principle modules.
Applications
- HVAC refrigeration.
- Industrial process and safety protection monitoring.
Technical Specifications
| Parameter | Value |
| Model | ZRT512C |
| Target gas | R32/R454B/R290 |
| Warm – up time | 30s |
| Communication mode | RS485/UART (PWM customizable) |
| Detection range | 0 – 50%LFL |
| Response time | R32/R454B: < 10s; R290: < 15s |
| Resolution | 0.1%LFL |
| Working voltage | 3.6 – 5.5V DC |
| Working temperature | – 40 to 85 °C |
| Interface mode | PNIRR – 04VF |
| Average current | < 60mA (@5V) |
| Working humidity | 0 – 100%RH |
| Size (L×W×H) | 54×34.9×28.83mm |
| Weight | 45g |
| Life span | > 15 years |
