Description
The ZRT512E‑R454B&R32 series is an intelligent infrared‑based refrigerant detection module. It uses the Non‑Dispersive Infrared (NDIR) principle to detect refrigerants, featuring high selectivity and no oxygen dependence.
This compact, high‑performance module integrates mature infrared absorption gas sensing technology, micro‑machining structure, and precision circuit design. It delivers stable performance and is extremely easy to integrate and use.
Application
- Heating, Ventilation and Air Conditioning (HVAC)
- Refrigeration systems & heat pumps
- Industrial process monitoring
- Safety protection & gas leakage monitoring
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
Specifications
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
* The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.
Technical Support:
Customized technical design and function, LOGO and package are available without extra charge (including molding fee) for mass volume.
The sensors don't have sleeping mode. It can be set in program if needed.
All Winsen products go through strict inspections and tests to make sure they are 100% qualified before shipping out.
The sensor has been fully tested (not calibrated) before leaving the factory, but the module will be calibrated before leaving the factory.
However, after transportation and storage, the environment conditions change, and the surface of the sensor absorbs moisture, mixed gas, pollution matters, etc. It is recommended that customers perform aging and calibration after sensors become stable according to the program and use occasions of the whole device.
15﹪-90﹪RH without condensation,greater or less than this range or long-term high temperature and high humidity will affect the life of the sensor.
Our sensors are certified with CE, 3C, ROHS, anti-explosion, fire prevention, and coal mining safety according to different applications. And we provide assistance for new certification.
Many factors can cause the sensor to fail such as broken wires in transportation, poisoning, falling off of the sensitive material, damage to the heating wire (device), etc. Please find specific cause in each category with Winsen’s aftersales.
Winsen provides professional consultation and service before and after sales. We will recommend the best fitting sensor for your demand. If you have any problem, don’t hesitate to email us to sales@winsensor.com
Due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. But we will reply to your inquiry in 24 business hours.
