EXP-
DN
MS-N4X-AT-
H
V
Larson Electronics, LLC
Phone: (800) 369-6671
Fax: (903) 498-3364
www.larsonelectronics.com
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EXP-
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MS-N4X-AT-
H
V
Explosion Proof Motion Sensor Instruction Manual
Thank you for your purchase of the EXP-
DN
MS-N4X-AT-
H
V Motion Sensor, the following instructions are intended for
this part number only.
Installation
This unit is easily wall mounted via integral mounting bracket, which can be adjusted -90° to +30° vertically after
installation. The explosion proof housing provides two 1/2" or 3/4" hub openings located on either side of the housing for
running electrical conductors in a feed through configuration. A bushing seal at each conductor opening prevents
damage to wiring insulation.
This unit is designed to operate
on voltage
s of
120V, 208V, 220V, or 277V AC
.
Voltage is chosen when ordering.
This
motion sensor is suitable for use in environments where combustible dusts and particulates may be present.
1/2" or 3/4"
NPT tapped conduit openings are provided on either of the unit in feed through versions while dead end versions have a
single conduit hub, providing easy and secure connection to main power line supplies.
The EXP-
DN
MS-N4X-AT-
H
V operates like a standard on/off light switch. The circuit is normally open when no motion is
present. Once motion is detected, the internal switch changes to a closed circuit, allowing voltage to pass through the
sensor and power the device(s) at the other end.
The sensor is an active motion detector;
it emits high-frequency electro-magnetic waves (5.8GHz) and receives their
echo. The sensor detects the change in echo from even the slightest movement in its detection zone. A microprocessor
then triggers the “switch light ON” command. Detection is possible through doors, panes of glass or thin walls.
IMPORTANT:
persons or objects
moving towards the sensor are detected
best.
NOTE:
the high frequency
of the output of this sensor is <10Mw –
that is just one 100
th
of the transmission
power of a mobile phone or the output of a microwave oven.
