OM0283
Page 59 of 70
Rev 2 July/2021
9.0
Remote Contacts
The NU-543 has several contact closures for remote sensing of various functions.
9.1 Fan Relay
The fan relay contacts are normally open and closed contact closure outputs that are activated whenever the blower key is
pressed and the blower key LED indicator is on or blinking. Contact ratings are 250 VAC maximum at 2 Amps.
9.2 Alarm Relay
The alarm relay contacts are normally open and closed contact closure outputs which are activated whenever an airflow
alarm condition occurs. Contact ratings are 250 VAC maximum at 2 Amps.
9.3 15VDC Output
The 15VDC (100mA) output is active when power is applied to the
FlowGard™
control board.
Содержание LabGard D NU-543-400
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