Larson Electronics EXP-MS-N4X-AT-HV User manual

EXP-MS-N4X-AT-HV
Larson Electronics, LLCPhone: [phone] Fax: [phone]www.larsonelectronics.com
1 of 6
EXP-MS-N4X-AT-HV
Explosion Proof Motion Sensor
Instruction Manual
Thank you for your purchase of the EXP-MS-N4X-AT-HV 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 120V, 208V, 220V, 240V, or 277V AC electrical circuits. We also carry low voltage
12-24V AC or DC electrical systems. 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-MS-N4X-AT-HV 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 100th of the transmission
power of a mobile phone or the output of a microwave oven.

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MOTION SENSOR
Operating voltage
Rated load
HF system 5.8GHz±75MHz, ISM wave band
Transmitting power <0.5mW
Power consumption ≤0.5W(standby)
Detection zone Max.(D x H): 16m x 15m
Detection sensitivity /// 50%10%%%%%%
Hold time 5s / 45s / 5min / 15min
Daylight sensor 2Lux/10Lux/30Lux/Disable
Mounting height 15m Max.
Motion detection 0.5~3m/s
Detection angle 150°(wall installation)
360°(ceiling installation)
Operating temperature -25℃~60℃
IP rating IP20
Setting
ON ON
ON
ON
ON ON
ON
ON
ON
ON
ON
I
II
III
IV
1 2
10%
50%
775%
100%
I
II
III
IV
3 4
5s
45s
5min
15min
I
II
10lux
2lux
30lux
III
IV
By selecting the combination on the DIP switch, sensor data can be precisely set for each specific application.
ON
ON
DDeetteeccttiioonn aarreeaa
Detection area can be reduced by selecting the combination on the
DIP switches to fit precisely each application.
HHoolldd ttiimmee
Refers to the time period the lamp remains at 100% illumination after
no motion detected.
DDaayylliigghhtt sseennssoorr
The sensor can be set to only allow the lamp to illuminate below a
defined ambient brightness threshold.
When set to Disable mode, the daylight sensor will switch on the lamp
when motion is detected regardless of ambient light level.
30lux:twilight operation, 2lux, 10lux: darkness operation only.
Disable
OONN
ON
5 6

EXP-MS-N4X-AT-HV
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NOTE: The starting socket, the one labeled
"Mandatory start line", is not needed for
connections and can be left alone and skipped
during installation.
INSTALLATION
•Disconnect the fixture from all power sources and esnure it is cool to the touch.
•Remove the fixture from the mount.
•Open up the fixture and locate the housing unit containing the motion sensor board.
•Carefully remove the housing unit from the enclosure.
•To remove the board from the wiring connections, press down on the white tabs
to release the wiring.
•After all connections in the original board are removed, set it to the side.
•Grab new replacement board and make the wire connections as before.
oJust push down the white tab and insert the wire into the correct slot.
•The housing unit for the board has a notch built into the bottom section of the
container. This notch is for the wire connections between the board and the
unit to feed through.

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•Center the board in the container so the two sensors on top are not covered.
•Using a 9/64 Allen Wrench, tighten and secure the bolts on this container to secure
the board in place.
•When tight enough so the unit doesn't shift in place, use a 6mm Socket Wrench to
tighten and secure the nuts on the other side of the container.
•Once the unit is fully secured, feed the wires back through the unit and slide
the container into the unit.
•Screw the lid back onto the fixture and remount to desired location.
•Connect fixture back to power and continue use.

EXP-MS-N4X-AT-HV
Larson Electronics, LLCPhone: [phone] Fax: [phone]www.larsonelectronics.com
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Certifications - Compliance
- Class I, Divisions 1 & 2, Groups B, C, D
- Class I, Zones 1 & 2, Groups IIB+H2, IIA
- Class II, Divisions 1&2, Groups E,F,G
- Class III, Divisions 1&2
- Ex db IIC Gb
- Ex tb IIC Gb Db IP66
- NEMA 3,4,4X,7 (B,C,D), 9 (E,F,G)
Malfunction
Cause
Remedy
The load will not work - wrong light control setting selected
- load faulty
- mains switch OFF
- adjust setting
- change load
- switch ON
The load is always working - continuous movement in the
detection zone
- check zone setting
Load works without and identifiable
movement
- sensor is not mounted for detecting
movement reliably
- movement occurred, but not
identified by the sensor (movement
behind a wall, movement of small
object in immediate vicinity etc.)
- securely mount enclosure
- check zone setting
The load will not work despite
movement
-rapid movements are being
suppressed to minimize
malfunctioning or the detection zone
you have set is too small
-check zone setting
THESE INSTRUCTIONS MAY NOT COVER ALL DETAILS OR VARIATIONS OF THIS PRODUCT FOR YOUR EQUIPMENT OR INSTALLATION REQUIREMENTS. SHOULD FURTHER
INFORMATION NOT COVERED BY THESE INSTRUCTIONS BE REQUIRED, PLEASE CONTACT LARSON ELECTRONICS BY EMAIL AT [e-mail] OR BY PHONE AT
1-800-369-6671 FOR FURTHER ASSISTANCE.
PLEASE VISIT LARSONELECTRONICS.COM FOR WARRANTY AND RETURNINFORMATION.