■ TRANSMITTER TYPE(4~20mA.DC)
■ MODEL : QM-4700D(T), QM-4700D(O2)
◉ Applying a sensor used for the toxic and oxygen.
◉ QM-4700D(T) features excellent selectivity and minimizes the effects of interfering gases by means of the prin-
ciple of detecting specific gases and reaction to target gases.
◉ Enclosure explosion-proof certificate(by KOSHA).
◉ Calibration and program settings(Zero), and a span with the automatic setting buttons, except for 4~20mA.
◉ Calibration and maintenance by one person.
◉ Minimizes effects of temperature/humidity and electric noises.
◉ Connect analogue standard output(4~20mA) signals to DCS & PLC monitoring systems.
◉ QM-4700D(T) can measure toxic gases and oxygen in industrial sites in real time, show remarkable performance in detecting toxic gases and oxygen that violate ermissible concentrations for the human body, provide 4~20mA. DC standard output, and be connected to every controller and monitoring system.
| Measuring gas | Toxic Gas, Oxygen(O2), CO, CL2, NH3, SO2, H2S, NO, NO2, etc. / VoC, Benzene, Toluene, Xylene, etc.
| Measuring range | 0~PPM – Toxicity(See the range of toxicity by gas), 0~25%(Vol)- O2
| Measuring method | Diffusion type, Electro-chemical cell type, Semiconductor type
| Measuring signal | 4~20mA.DC
| Response time | Less than 20sec
| Accuracy | ±2%/Full scale
| Operating Temp´/Humi´ | -40℃~+60℃/96% RH(Non-condensing)
| Operating power | 24V.DC
| Consumption electric power | 1W(Max)
| Cable/Distance | F-CVVS(Shield) 1.5sq × 2wire/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 | 1.15Kgs