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.
[ Features ]
ㆍ FND display with Back Light
FND offers real-time display of gas density and back light offers easy reading in dark area.
ㆍ Isolation Circuit
Built in isolation circuit prevents electrical noise and realizes the most stable sensor output.
ㆍ Multi Signal Output
DC 4-20mA, 2 step-relay contact, & RS-485(option) – provides best networking with all kinds of devices & equipments.
[ Specification ]
| 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 |
