Products
Combustible
EX-420(C)
Features
- Explosion-Proof Structure for Installation in Hazardous Areas to Monitor Combustible & Toxic Gases
- High Performance and Cost-Effective
- Self-Diagnostic Function with Microprocessor Technology
- Large FND Display for Easy Visibility from a Distance
- 4~20mA DC Output Signal
- RS-485 Communication for Easy Monitoring System Integration
- Calibration and Maintenance Possible by a Single Operator
Catalog
Specifications
| Detected Gas | Combustible Gas (H₂, CH₄, C₂H₂, C₂H₆, etc.) |
|---|---|
| Detection Type | Diffusion Type |
| Detection Method | Catalytic Cell |
| Measurement Range | 0 ~ 100% LEL |
| Detection Speed | Within 30 Seconds, 90% Scale |
| Accuracy | ±3% / Full Scale |
| Operation Display | 4-LED (Power, 2 Alarms, Trouble) |
| Concentration Display | FND Display (4 Digit) |
| Output Signal | 4-20mA |
| RS-485 Modbus (Optional) | |
| Cable · Transmission Distance | Power + Signal Cable: 3 Wire (Above CVVSB 0.75sq) / Max. 2,500m |
| Wire Conduit | 3/4” PF Standard |
| Installation Method | 2” Pole Mounting, Wall Mounting, Duct Mounting |
| Operating Temperature | -20℃ ~ +60℃ |
| Operating Humidity | 5 ~ 99% RH (Non-Condensing) |
| Operating Power | DC 24V |
| Relay Contact | Alarm 1, Alarm 2 Contact Ratings 3A@120VAC/24VDC, 1A@250VAC |
| Dimensions | 157(W) × 200(H) × 110(D) mm |
| Weight | 2.0 kg |
| Explosion-Proof Certification | Flame-Proof Type Ex db IIC T6 (KGS Certified) |
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