Input signal: usually open or closed contact
Voltage of field contact: 48VDC
Output signal: 1、alarm window display
2、alarm audio
3、auxiliary relay,
Alarm process: using ISA F2M-1 process of standard S18
Seismic requirements: according to requirements of 1E level instruments, can shutdown earthquake resistant
Power supply: 220V AC+10‰,-15‰
Dimension: 322×358.4×225mm
Hole size: 308×346mm(_H×W)