NARDA L3HARRIS SMARTS II, Руководство по эксплуатации

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4 Operation and installation
SMARTS II 27
4.8 Test button
See 3.1 Test button
4.9 Remote alarm indication
When the SMARTS II detects radiation at its preset alarm threshold or
higher, an electronic signal is provided at the
STATUS line (pin 4) to
activated various user-supplied remote circuitry
Alarm status can be detected remotely by using the STATUS signal, the
RECORDER output level, and/or the STATUS relay (SPDT)
connections.
!
The relay cannot be used under battery operation.
⚠
CAUTION
Incorrect contact rating of the relay
Risk of malfunction and permanent damage of
the relay

Do not exceed relay contact rating of 3 W
@ 250 mA, 28 V

The level on the STATUS line (pin 4) transitions from -4 V under
standby conditions to a +4 V under alarm conditions.

The ENABLE/RECORDER line (pin 2) serves a dual function. When
used to monitor field strength, the Recorder Output Level varies from
0 V to -1 V. Full scale represents the level at which the SMARTS II is
set to sound its alarm. For example, if the Alarm Threshold is set to
50% of Standard, a -0.5 V level indicates that the field strength is
approximately 25% of Standard.

The SPDT STATUS relay operates whenever there is an alarm
condition. Under alarm conditions, there is a connection between the
common
COM (pin 3) and the normally open N.O. (pin 1).