Internal view – RKI Instruments SD-705EC User Manual
Page 6

PT2E-1140
Internal View
①Terminal plate………………… Connected to power source and 4-20mA signal output.
②Fuse…………………………… Fuse for power(0.5A)
③Rely output terminal………… Connected to alarm relay output cable.
④Earth terminal………………… Used to make grounding
⑤Cable inlet…………………… Used to lead the cable from the indicating alarm unit
(With the pressure proof packing gland)
⑥Relay output and ……………… Used to lead the cable from alarm relay output.
communication cable inlet
(With the pressure proof packing gland)
⑦Sensor………………………… Sensor connected.
⑧Power switch………………… Power ON/OFF switch.
⑨Seal packing…………………… Used to protect equipment from water and dust.
⑩7p connector for detector…… Connected to cable for detector(sensor).
(sensor)
⑪Packing……………………… Used to protect equipment from water and dust.
5