Models 375-31H Area Monitor with Neutron Detector
Section 5
Ludlum Measurements, Inc.
Page 5-2 January 2021
External Mains (120 or 240 VAC) Alarm Relay Out (using 3 pin
connector) PN4558-038
:
Allows the use of the 9-pin D female connector for RS-232 or remote use
and does not interfere with the internal form C relays.
This option includes a small enclosure connected to the Model 375 via a
short cable, that accepts a standard mains power cord (conduit option is
4558-038-1). In an ALARM condition, the mains voltage is relayed to a
set of terminals. Only a licensed electrician should install this option.
Figure 1. Mains Relay Box Back Panel.
See below for description of noted parts in drawing above.
A –
connector for cable (Part # 8303-879) that connects the
mains relay box to the Model 375.
B –
Use fuse that is noted in drawing above.
