Product Description

■ TRANSMITTER TYPE(4~20mA.DC)
■ MODEL : QM-4700D(F)

FEATURES

◉ QM-4700D(F) provides the self-diagnosis function where the microprocessor applies.
◉ QM-4700D(F) prevents errors in circuit protection, consisting of constant-voltage circuits to ensure safe detection sensor operation.
◉ Enclosure explosion-proof certificate(by KOSHA).
◉ Calibration and program settings(Zero), and a span with the automatic setting buttons without volume, 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(F) installed in industries and explosion danger areas measures flammable gases in real time. QM-4700D(F) also provides 4~20mA. DC standard output, connected 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