NMP Gas Leak Alarm KGD-GAS-211 with High-Temperature Operation (0-160°C), Explosion-Proof Structure (Ex dbIIC T3 Gb), and Integrated Design
The NMP Gas Leak Alarm KGD-GAS-211 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 in the center of drying equipment and exhaust pipes. The sampling instrument body and the display part adopt an integrated explosion-proof structural design, which is convenient for installation and disassembly. Meanwhile, this instrument has the characteristics of automatic calibration, long-term maintenance-free operation, and a long service life. It has functions such as industrial 4-20mA current output, RS485 external communication, and concentration over-limit alarm output, and can be applied to complex and harsh high-temperature industrial environments.
- Detect 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 in the central part of the equipment
- Adopt a pressure-resistant explosion-proof structure, meeting the explosion-proof rating of Ex dbIIC T3 Gb
- Integrated design, easy to install
| Detected 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 inside the furnace |
| Alarm Set Value | 15%LEL~50%LEL (default 25%LEL, can be set) |
| External Output | Gas concentration signal/alarm contact |
| Communication Method | DC4～20mA (resistive load below 300Ω), RS485 (default baud rate of 9600) |
| Alarm Accuracy | ±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 |
| Operating Voltage | 24VDC±10% |
| Average Operating Current | Average operating current < 1.0A (@25℃, 24VDC) |
| Warm-up Time | ≤30min |
| Operating Temperature | Temperature of the measured gas: 0～160℃ (usually); Temperature of the instrument head: 0～60℃ (usually) |
| Operating Humidity | Less than 95%RH (no condensation) |
| Service Life | 10 years |
| Structure | Direct insertion into the furnace |
| Explosion-proof Structure | Explosion-proof structure |
| Explosion-proof Rating | ExdbIICT3Gb |
| Overall Dimensions/Weight | 418mm178mm110mm/Approximately 6kg |
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