WIRING DETAILS
System Wiring
24 Vdc Output
The three 24 Vdc / 250 mA outputs are provided to activate DC horn,
strobe, etc.
J8
Contact
input
Note: Terminal connectors labeled OUT #1 and OUT #2 must be
dedicated to RFSA use only, if applicable.
Terminal connector labeled OUT #3 must be used for RFS only, if
applicable.
RFS: Optional built-in stobe
RFSA: Optional built-in stobe and horn
4-20 mA Configuration
Output 4-20 mA, J9
The 4-20 mA output option will provide a real time analog readout of the
gas concentration read by the 301EM for each of its sensors. It can be
connected to a third party controller, DDC, BMS, etc.
Polarity must be observed.
Do not apply electrical power to the 301EM until all
CAUTION
connections are made. Significant damage can result from
incorrect wiring.
20
J9
301EM User Manual
RFSA
RFS