NMP Gas Leak Alarm with Differential Pressure Intake Mode and Explosion-Proof Grade Ex db IIC T3 Gb for High-Temperature Environments 0-160°C
The NMP Gas Leak Alarm KGD-GAS-203 is a high-performance NMP gas leak alarm independently developed by KACISE based on the non-dispersive infrared (NDIR) principle. It is suitable for detecting the gas concentration at the center of drying equipment and exhaust pipes. The sampling instrument body and the display part adopt an integrated explosion-proof structure design, which is convenient for installation and disassembly. At the same time, this instrument has the characteristics of automatic calibration, long-term maintenance-free operation, and a long service life. It has the functions of industrial 4-20mA current output, RS485 external communication, and alarm output when the concentration exceeds the limit, and can be applied to complex and harsh high-temperature industrial environments.
- Detects high-boiling-point NMP solvent
- Can operate in a high-temperature environment of 0-160°C
- Direct insertion into the furnace to accurately detect the concentration at the center of the equipment
- Adopts a pressure-resistant explosion-proof structure, meeting the explosion-proof grade of Ex db IIC T3 Gb
- Integrated design, easy to install
| Detection Gas Object | NMP (n-methyl-2-pyrrolidone) |
| Concentration Display | 7-segment LED (4 digits) |
| Detection Range | 0-100%LEL |
| Display Resolution | 0.5%LEL |
| Sampling Method | Differential pressure intake mode inside the furnace |
| Alarm Set Value | 15%LEL~50%LEL (default is 25%LEL, can be set) |
| External Output | Gas concentration signal/Alarm contact |
| Communication Method | DC4～20mA (resistive load below 300Ω), RS485 (default baud rate is 9600) |
| Alarm Precision | ±5%LEL@15%LEL~50%LEL |
| Alarm Delay | T90＜30s@15%LEL~50%LEL |
| Alarm Contact Capacity | 250VAC0.2A/30VDC1.5A (impedance load) |
| Alarm Action | Automatic reset |
| Working Voltage | 24VDC±10% |
| Average Working Current | Average working current < 1.0A (@25℃, 24VDC) |
| Preheating Time | ≤30min |
| Working Temperature | Temperature of the measured gas: 0～160℃ (usually) Working temperature of the meter head: 0～60℃ (usually) |
| Working Humidity | Less than 95%RH (without condensation) |
| Service Life | 10 years |
| Structure | Direct insertion into the furnace |
| Explosion-proof Structure | Flameproof structure |
| Explosion-proof Grade | ExdbIICT3Gb |
| Overall Dimensions/Weight | 418mm178mm110mm/Approximately 6kg |
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