ZRT512E-R454B & R32 NDIR Refrigerant Detection Module, RS485 HVAC Sensor, UL/IEC Certified
ZRT512E-R454B&R32 series is an intelligent NDIR refrigerant detection module for R454B&R32 gases, with RS485 protocol, high sensitivity and long service life >15 years, ideal for HVAC systems.
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Description
The ZRT512E-R454B&R32 series is an intelligent infrared-based refrigerant detection module (hereinafter referred to as the module). It uses the Non-Dispersive Infrared (NDIR) principle to detect refrigerants, featuring good selectivity and no oxygen dependence. This compact and high-performance module combines mature infrared absorption gas detection sensors with micro machining and sophisticated circuit design, making it easy to use and delivering excellent performance.
Product Features
- High sensitivity, high resolution, fast response time
- RS485 protocol for stable communication
- Built-in temperature compensation, excellent linear output, outstanding stability, long service life
- Anti-water vapor interference, no poisoning risk
- Can directly replace the catalytic combustion principle module
Product Applications
- Heating, Ventilation, and Air Conditioning (HVAC)
- Refrigeration systems and heat pumps
- Industrial process monitoring
- Industrial process and safety protection monitoring
Specifications Table
Table 1 – Main Specifications
| Item | Specification |
|---|---|
| Model No. | ZRT512E-R454B&R32-4-A-S ZRT512E-R454B&R32-4-A-L |
| Target Gas | R454B & R32 |
| Working Voltage | 5±0.5VDC, ripple＜50mV |
| Average current | ＜150mA@5V |
| Peak current | ＜150mA@5V |
| Cable length | 1.5m / 3.2m |
| Interface method | XHS-4Y / XHS-5Y |
| Protocol | RS485, Data update 1s |
| Preheat time | ＞30s |
| Response time ① | ≤15s |
| Recover time ② | ≤300s |
| Selective testing recovery time ③ | ≥1h |
| Alarm point | 10%LFL (R454B) & 7%LFL (R32) |
| Working condition | -40~95℃, 0-95%RH (No condensation), 80-110kPa |
| Storage condition | -40~70℃, 0-95%RH (No condensation) |
| Dimension | 54.0×49.1×17.9mm |
| Lifespan | ＞15 Year |
| Certification | UL 60335-2-40:2022 IEC 60335-2-40:2022 |
Table 2 – Detection Performance
| Target Gas | Detection Range | Resolution | Accuracy |
|---|---|---|---|
| Refrigerant R454B&R32 | 0~100% LFL | 0.1% LFL | ±2.5%LFL(@0%~25%LFL) ±5%LFL(@25%~ 50%LFL) |
Notes
Tested according to UL 60335-2-40:2022 & IEC 60335-2-40:2022
① Response time
② Time for sensor to recover from 25% LFL to initial value (＜2.5% LFL) in clean air (T10)
③ Interval between two interfering gas tests during selectivity test
Additional information
| Detection Gas | R32, R454B |
|---|---|
| Prinsipyo | NDIR |
| Uri ng Produkto | Modyul |
| Output | RS485 |
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