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											| เครื่องวัดแก๊สแบบติดตั้ง Fix Gas detector  สามารถรองรับได้หลากหลายชนิดแก๊ส  ทั้งแก๊สพิษ และ แก๊สไวไฟ ติดตั้งง่าย ราคาไม่สูงมาก เหมาะกับโรงงานทั่วไป สามารถขอข้อมูลเพิ่มเติมได้
 
 DA-91 Series
 
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													DA-91 series detects leakage of various toxic or combustible gases leaked from industrial areas for gas producers, gas users, gas reservoirs, gas by-producers, and so on, in order to prevent any accidents in advance. 
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			| [ Features ] |  
			|  FND display with Back Light |  
			| FND offers real-time display of gas density and back light offers easy reading in dark area. |  
			|  Isolation Circuit |  
			| Built in isolation circuit prevents electrical noise and realizes the most stable sensor output. |  
			|  Multi Signal Output |  
			| DC 4-20mA, 2 step-relay contact, & RS-485(option) – provides best networking with all kinds of devices & equipments. |  
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			| [ Specification ] |  
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							| Detection principle | Electro-chemical, NDIR, Catalytic |  
							| Response time | within 20 seconds, 90%/full scale |  
							| Accuracy | ≤2% /full scale |  
							| Programmable | Calibration density & detection range |  
							| Self diagnose | FND shows senor error(S-ERR), 2mA output |  
							| Input power | AC 220V/60Hz |  
							| Output power | 4~20mA / full scale – max. 2.5km transmitting length |  
							| Alarm | Low alarm – AL1 LED(RED) |  
							| High alarm – AL2 LED(RED) |  
							| Light bar – BZ LED(RED) |  
							| Alarm method | Sight – Light bar |  
							| Hearing – Buzzer (90㏈/1m) |  
							| Operation temperature & humidity | -20℃~50℃ & 5~95% RH (non-condensing) |  
							| Alarm release | Manual and automatic release |  
							| Alarm output | 2 step (AL1/AL2) alarm relay contact, RS-485 (option) |  
							| Mounting type | Wall mounting type |  
							| Detection range | 0 ~ 10,000 ppm |  |  |