Product Guide
MWS5 (standard & slim-line PSU)
Miniature Microwave Presence Detector (luminaire fitting)
Overview
The MWS5 series of miniature microwave presence
detectors provide automatic control of lighting loads with
optional manual control. As microwave radiation
penetrates plastic and glass, this unit has been specifically
designed to be mounted inside a luminaire.
Three models are available: premium, direct dim, and
analogue dim all of which will switch incandescent,
fluorescent and compact fluorescent lighting. The direct
dim variant controls DALI or DSI digital dimming ballasts
whilst the analogue dim variant controls 1-10V dimming
ballasts.
The unit detects movement using a microwave sensor and
turns the load on. When an area is no longer occupied the
load will switch off after an adjustable time out period.
A selection of fixing clips to allow the unit to me mounted in
or to the side of a luminaire are available.
All functionality is fully programmable using an IR handset.
Sensor head
Standard power supply
Slim-line power supply
Lens
which covers...
IR Receiver
Light Level Sensor
Status LED
Dimming version shown
Features
Microwave Sensor
Detects movement within the unit’s detection range,
allowing load control in response to changes in occupancy.
IR Receiver
Receives control and programming commands from an
IR (infrared) handset.
Light Level Sensor
Measures the overall light level in the detection area
Status LEDs
The LED flashes Red to indicate the following:
Walk Test LED active
Valid setting received
RJ11 connector
The sensor head has a flying lead with a RJ11 plug at the
end plugs into the RJ11 socket on the power supply.
Standard power supply
This power supply has a 6A relay. It also has connections
for an external switch that can be used to turn on the load
when absence detection mode has been set or raised /
lowered with dimming variants.
when movement is detected
Dimming version shown
Slim-line power supply
Where space is at a premium the slim-line power supply is
compact and suitable for luminaire mounting where a 2A
relay is sufficient. This power supply does not have
connections for external switches.
Detection diagram
Please note that these approximate distances will apply with the sensitivity set to
maximum.
2
Installation
The detector should be sited so that the occupants of the room fall inside the detection pattern shown opposite). Please
note that when ceiling mounting, the recommended ceiling height of the sensor head is 2.4m.
Avoid direct sunlight entering the sensor.
Do not site within 1m of forced air heating or ventilation.
Do not fix to a vibrating surface.
Avoid metallic objects directly in front of the sensor head.
Do not fit to a suspended luminaire.
Sensor functionality
Detection mode
Presence When movement is detected the load will automatically turn on. When the area is no longer occupied the
load will automatically switch off after an adjustable time period.
Absence (standard power supply only) The load is manually switched on. When the area is no longer occupied
the load will automatically switch off after the adjustable time period has elapsed.
Switch operation:
PRM single switch: short press turn on, long press turn off.
MWS5-DD & MWS5-AD single switch: short press turn on, short press turn off, press and hold cycles dimming.
MWS5-DD & MWS5-AD two way switch: up button short press turns on, press and hold to dims up. Down button
short press turns off, press and hold dims down.
In either case, sensitivity to movement of the microwave sensor can be adjusted using the Sensitivity parameter.
HINT: To assist in setting the Sensitivity, turn on the Walk Test LED which will flash red when movement is detected.
Switch Level On/Off
Occupancy detection can be made dependant on the ambient light level using the Lux On Level and Lux Off Level
parameters.
Maintained Illuminance (daylight harvesting) - DD and AD variants only
The detector measures the overall light level in the detection area and calculates the correct output for the luminaires, to
achieve a preset lux level (maintained illuminance or daylight harvesting).
Burn-in - DD and AD variants only
Burn-in - DD and AD variants only
Overview
It is a requirement of many fluorescent lamp manufacturers to have the lamps on at maximum output for a period of
time to guarantee lamp life (refer to the manufacturer’s datasheet for details). As the MWS5-DD & AD are able to dim
the lamps using DALI/DSI or 1-10V, the products provide a facility to disable this for a given period of time.
Operation
By setting the “Burn in” parameter, you can select a time during which the lamps are not allowed to deviate from
maximum output. The unit counts the time, and even remembers how long has elapsed in the event of a power
failure. To cancel the burn in function, simply select a time of 0. Note that when the lamps are changed, the burn in
time should be set again.
3
Installation
Surface mounting using the base plate
Use the base plate for surface
mounting.
Panel mounting using lugs
Use the lugs on rear of detector to
secure into thin sheet metal (1mm
max.).
19mm
Flush mounting
The product can be mounted into
a flat panel of a luminaire using
the flush mount ring as shown.
0.8mm - 4mm material
Ø43mm (+0, -0.2)
>4mm material
Ø44mm
If flush mounting in a panel that is
greater than 6mm thick, remove bottom
of retention arms with side cutters
Flush fitting behind light fitting diffuser using the flange mount bracket
Glue the flange mount bracket on
to the rear of the diffuser, and
fasten the sensor head in place
using the two longer (19mm high)
bracket clips.
Before gluing, please ensure that
the glue used is compatible with
both the acrylic flange mount
bracket and the diffuser material.
Ø19.5m
Ø3.5m
Flush fitting through gear tray or metal bulkhead using the flange mount bracket
Cut a 37.5mm diameter hole in
the bulkhead plate (max. 1mm
thick) to allow the front face of the
sensor head to pass through.
Glue the flange mount bracket on
to the rear of the plate, and fasten
the sensor head in place using
the two shorter (18mm high)
bracket clips.
Side mounting with extender
Use the extender for side
mounting on a luminaire.
4
Loading...