DA-500 detects various combustible & toxic 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. DA-500 converts digital signal into the 4-20mA standard current output signal which can be transmitted to various devices such as PLC, DDC, or recorder to build comprehensive gas monitoring system. Also, DA-500 provides RS-485 communication signal and alarm relay contact. DC 4-20mA standard output signal realizes max 2500m long distance output signal transmission and RS-485 communication signal realizes max 1000m long distance signal transmission.

[ Features ]

ㆍ Auto-calibration without opening cover You only have to touch cover window using magnetic bar. It is quite useful for the corrective work in the explosive area. 
ㆍ LCD display with back light 
ㆍ Built-in HD(high dissolution) A/D converter for accurate output signal. 
ㆍ Multi signal output 
    DC 4-20mA, 2 step-relay contact, & RS-485(option) – provides best networking with all kinds of devices & equipments.  
ㆍ 4-20mA transmitter 
    4-20mA output enables stable and long distance (maximum 2.5km) signal transmission. 
ㆍ RS-485 
    RS-485 enables stables stable and long distance (maximum 1.2km) signal communication. 
ㆍ Alarm output 
    SPST 2 step relay contacts (AL1/AL2). 

[ Specification ]