9
3−5.Block diagram
4-20mA Output instrument
(Detector head)
Amp part
Control part
Display part
(PW/TR) (SKIP) (AL1) (AL2)
Operation part
(MODE) (UP) (DOWN) (SET)
POWER INPUT
(DC24V)
Power supply part
Gas alarm contact(AL1、AL2)
Trouble alarm contact
(TROUBLE)
※Standard setting
・Non-exciting
(Non-exciting at normal)
・A-contact
(Contact closes at alarm)
Alarm contact control part
4-20mA
transmission
Transmission part
RM−592