CP Electronics MWS3A-PRM-L3 Product Manual

Ceiling microwave detector with 3m pre-wired lead

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MWS3A-PRM-L3
Ceiling microwave detector with 3m pre-wired lead
Front features
Mounting Bezel
Product Guide
The MWS3A-PRM-L3 microwave presence detector
provides automatic control of lighting loads .
The MWS3A-PRM-L3 detects movement using a highly
sensitive microwave detector. This works by emitting low
power microwave signals and measuring the reflections as
the signals bounce off moving objects.
The output channel comprises a mains voltage relay
capable of simple on/off switching.
Functioning as a presence detector, the unit can turn lights
on when a room is occupied and off when the room is
empty. Optional settings allow lights to be turned off in
response to ambient daylight.
The MWS3A-PRM-L3 has a unique adjustable sensor head
that allows the area of detection to be optimised for the
application.
All functionality is fully programmable using an IR handset.
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
Sensor Lens
The LED flashes Red to indicate the following:
which covers...
Microwave Sensor
Walk Test LED active
IR Receiver
Light Level Sensor
Valid setting received
Status LEDs
Overview
Features
when movement is detected

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Summary of Contents for CP Electronics MWS3A-PRM-L3

  • Page 1 Optional settings allow lights to be turned off in response to ambient daylight. The MWS3A-PRM-L3 has a unique adjustable sensor head that allows the area of detection to be optimised for the application.
  • Page 2: Sensor Functionality

    Detection diagrams Ideal for corridor or aisle applications Ideal for large office or classroom Note. If the range is compromised by the ceiling construction / material. Add the supplied 20mm spacer ring. See page 4 for fitting details. Ideal for open plan areas and offices Sensor functionality Presence detection •...
  • Page 3: Installation

    Installation Choosing a Suitable Location The detector should be sited so that the occupants of the room fall inside the detection pattern shown opposite). • Avoid positioning the unit where direct sunlight may enter the sensor element. • Do not site the sensor within 1m of any lighting, forced air heating or ventilation. •...
  • Page 4 Installation The MWS3A-PRM-L3 is designed to be mounted using either: • Flush fixing, or • Surface fixing, using the optional Surface Mounting Box (part no. MWS3A-DBB). Both methods are illustrated below. Warning - be careful bending springs when mounting unit.
  • Page 5: Basic Programming

    Basic programming The functionality of the MWS3A-PRM-L3 is controlled by a number of parameters which can be changed or programmed by any of the following devices: • UHS5 Infrared Handset. See below for programmable functions. • UNLCDHS Infrared Handset (with LCD). See user guide for full programming details.
  • Page 6: Advanced Programming

    Advanced programming Parameter Name Default Value Range / Options Description Detector Parameters Walk Test LED On or Off When set to On this causes a red LED to flash on the sensor when it detects ✓ ✓ movement. Use this feature to check for adequate sensitivity levels. Time Out 20 minutes 0-99 minutes...
  • Page 7 This page intentionally left blank...
  • Page 8: Technical Data

    + 44 (0) 333 900 0671 Fax: + 44 (0) 333 900 0674 www.cpelectronics.co.uk enquiry@cpelectronics.co.uk Due to our policy of continual product improvement CP Electronics reserves the right to alter the specification of this product without prior notice. Ref: #WD631 Issue 5...

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