ĐẦU DÒ KHÍ DỄ CHÁY QM-4700D(F) SUNGHWA

GAS DETECTOR (COMBUSTIBLE GAS)

- Self-diagnosis function by applying the microprocess.

- Consist the constant-voltage circuit to prevent errors of circuits protection and to protect safe operation of gas sensor.

- Enclosure explosion-proof certificate (by KOSHA)

- Calibration works and maintenance by oneself.

- Minimization of the impact of noise – temperature/humidity and electric noises.

- Connection of the analog standard output (4-20mA) signal to DCS & PLC monitoring system.

- QM-4700D(F) can install in industries and dangerous explosion areas measures flammable gases in the real time. QM-4700D(F) also provides 4-20mA standard output and can connect to monitoring system for use.

SPECIFICATION

| Model No. | QM-4700D(F)
| Measuring gas | Flammable Gas – H2, C2H2, C2H4, etc.
| Measuring range | 0~100%(LEL)
| Measuring method | Diffusion type, Catalytic combustion cell type, Semiconductor type
| Measuring signal | 4~20mA.DC
| Response time | Less than 10sec
| Accuracy | ±3%/Full scale
| Operating Temp′/Humi′ | -40℃~+60℃/96% RH(Non-condensing)
| Operating power | 24V.DC
| Consumption electric power | 1.45W(2.4W During normal operation)
| Cable/Distance | F-CVVS(Shield) 1.5sq × 3wire/Max 2,500M
| Conduit connection cable | 3/4(22MM) PF, NPT
| Mounting type |Wall mounting or 2″ Pole mounting
| Approval | Ex d ⅡC T6(KOSHA)
| Dimension | 126(W) × 193.5(H) × 76(D)
| Weight | 1.17Kgs