K500 Series Fixed Explosion Proof Gas Detector
The K500 series wall-mounted gas detector features imported high sensitivity sensors and explosion-proof design for long service life. This detector operates as part of an integrated system with 4-20 mA analog output or as an independent unit, featuring two alarm levels with distinct audible and visual signals.
Key Features
- Imported high sensitivity sensors for accurate detection
- Bright red flashing visual alarm and 90 dB audible alarm
- Waterproof and dustproof design for harsh environments
- Compatible with Distributed Control System (DCS)
- Flameproof design compliant with IEC61508 standards
- Adjustable low and high alarm values
- 220 V AC or 24 V DC power supply options
- Certifications: CMC, Ex, MA (China coal mining safety approval)
Technical Specifications
| Parameter | Specification |
|---|
| Power Supply | 24 V DC or AC 220 V/50 Hz |
| Output Signal | 4-20 mA standard industrial signal |
| Operating Temperature | -20°C to +50°C |
| Display | Backlight LED, 4-digit gas reading |
| Relative Humidity | 15% to 90% RH (non-condensing) |
| Atmospheric Pressure | 86 to 106 kPa |
| Explosion-proof Grade | Ex ibd IIC T6 |
| Size | 16 cm x 12.6 cm x 7.8 cm |
| Weight | 3000 g |
| Distance | 1000 m |
| Connecting Cable | 3 core cable, 3 x 1.0 mm |
Commonly Detected Gases
| Gas |
Range |
Accuracy |
Response Time |
Min Readout |
Low/High Alarm |
| PH3 | 0-2000 ppm | ±5% F.S. | ≤25s | 0.01 ppm | 0.3/5 ppm |
| O2 | 0-30% | ±5% F.S. | ≤15s | 0.1% vol | 18.0%/23.0% |
| LPG | 0-100% LEL | ±5% F.S. | ≤5s | 1% LEL | 25.0%/50.0% LEL |
| CO | 0-1000 ppm | ±5% F.S. | ≤25s | 1 ppm | 50/100 ppm |
| H2S | 0-100 ppm | ±5% F.S. | ≤30s | 1 ppm | 10/20 ppm |
| CH4 | 0-100% LEL | ±5% F.S. | ≤5s | 1% LEL | 25.0%/50.0% LEL |
| NH3 | 0-100 ppm | ±5% F.S. | ≤50s | 1 ppm | 25/50 ppm |
| O3 | 0-20 ppm | ±5% F.S. | ≤60s | 0.01 ppm | 0.2/0.4 ppm |
| Cl2 | 0-20 ppm | ±5% F.S. | ≤30s | 0.1 ppm | 1/10 ppm |
| H2 | 0-1000 ppm | ±5% F.S. | ≤60s | 1 ppm | 50/100 ppm |
| SO2 | 0-100 ppm | ±5% F.S. | ≤30s | 0.1 ppm | 2/10 ppm |
| NO | 0-250 ppm | ±5% F.S. | ≤60s | 1 ppm | 25/50 ppm |
| NO2 | 0-20 ppm | ±5% F.S. | ≤25s | 0.1 ppm | 3/10 ppm |
| Infrared CO2 | 0-5% vol | ±5% F.S. | ≤60s | 0.1% vol | 1%/2% vol |
| Infrared CH4 | 0-5% vol | ±5% F.S. | ≤60s | 0.1% vol | 0.1%/0.15% vol |
| Infrared C3H8 | 0-5% vol | ±5% F.S. | ≤60s | 0.1% vol | 0.1%/0.15% vol |
Our Service
- 1-year warranty with lifelong maintenance
- 24-hour response to all inquiries
- Technical support from experienced engineers
- OEM and ODM services available
- Factory located in Nanjing - visits welcome
- Full quality check and qualification certificate with every shipment
Calibration Services
For calibration of KELISAIKE products, please contact our technical support team for assistance.
Why Choose KELISAIKE?
- Direct manufacturer pricing with favorable rates
- Professional engineering team with over 10 years experience
- Strong R&D team for custom product development
- Free OEM services including logo printing and custom packaging
- Mixed orders and small quantity orders accepted
- Comprehensive after-sales service with 1-year warranty
Frequently Asked Questions
Q: Are you a manufacturer?
A: Yes, we are professional safety equipment manufacturers with over 12 years of experience in production and marketing.
Q: Do you provide customization?
A: Absolutely. We customize gas type, detection range, alarm points, and other specifications. Contact us with your requirements.
Q: Can I order a sample for quality testing?
A: Yes, we recommend testing samples before placing larger orders.
Q: What pricing is available for large quantity orders?
A: Please provide detailed requirements including item numbers, quantities, quality specifications, and delivery terms for an accurate quotation.
