4 Operation and installation
28
SMARTS II
4.10 The ENABLE feature
To avoid the alarm indication being on constantly, the
ENABLE
input
can be used in situations where the standard operating procedure
produces RF fields above the alarm threshold and exposure to people is
possible. Examples include an anechoic chamber and the deck of a
ship. The
ENABLE
input can be tied to a motion sensor or an interlock
switch. Under these conditions, the SMARTS II activates its alarms only
when two conditions are satisfied:
High levels of RF are present (above the monitors alarm threshold)
and
,
Motion is detected or a door is open.
To use the ENABLE feature
To inhibit the SMARTS II alarm function under certain conditions
connect a switch or relay between the
ENABLE
line and the
monitor’s ground,
GND
: Pin 2 (
ENABLE/RECORDER
) and pin 9
(
GND
) on the Input/Output Connector.
The SMARTS II will function normally whenever the relay contacts or
the switch is open.
The SMARTS II alarm function will not function whenever the relay
contacts or the switch is closed.
4.11 Remote test
It is possible to test the SMARTS II from a remote location when it is not
practical to reach the
TEST
button.
To test the SMARTS II alarm function
Briefly ground the
STATUS
line (pin 4). The monitor should go into
alarm status. This is best accomplished by connecting a cable to the
9-pin Input/Output connector. The test is made by connecting pin 4
(
STATUS
) to pin 9 (
GND
).
For relay activation
Connect pin 4 (
STATUS
) through the switch and a 10 k
resistor to
pin 6 or 7 (for +12 V operation), or through the switch and a 100 k
resistor to pin 6 or 7 (for +24 V operation). This will test the system
and cause the relay to change position.
4.12 Low battery indication
The SMARTS II indicates a low battery situation by "chirping" its audible
alarm. The alarm will sound for 10 ms in approximately forty-second
intervals whenever the battery level is low.
The battery should be replaced as soon as possible.
Содержание L3HARRIS SMARTS II
Страница 1: ...SMARTS II Ultra Wideband RF Radiation Area Monitor Operating Manual...
Страница 36: ...36 SMARTS II 7 3 Outline drawing...
Страница 37: ...7 Specifications SMARTS II 37 7 4 Declaration of conformity...
Страница 38: ...38 SMARTS II 7 5 Declaration of origin Country of Origin Germany...
