Visonic DISC MCW Installation Instructions

DISC MCW
Wireless PowerCode Digital Ceiling Mount PIR
detector
1. INTRODUCTION
The DISC MCW is the smallest 360° ceiling mounted passive
infrared detector presently marketed. The DISC MCW is a
microprocessor-controlled wireless digital PIR detector, designed
for easy installation.
The DISC MCW provides a nearly conical pattern of maximum
10.5 m (36 ft) diameter, when installed on a 3.6 m (12ft) ceiling.
The advanced True Motion Recognition™ algorithm (patented)
allows to distinguish between the true motion of an intruder and
any other disturbances which may cause false alarms.
False alarms caused by environmental disturbances are virtually
eliminated with alternate polarity pulse counter signal processin g
and a low-noise pyroelectric detector.
The DISC MCW includes the following features:
• Provides multiple beams coverage.
• Incorporates a fully supervised PowerCode transmitter.
• Sophisticated frequency domain digital signal processing.
2. SPECIFICATIONS
Detector Type: Dual element low-noise pyroelectric sensor.
ELECTRICAL
Internal Battery: 3V Lithium battery, type CR-123A. For UL
installations, use Panasonic, Sanyo or GP only.
Nominal Battery Capacity: 1400 mA/h.
Battery Life (with LED on): Typically over 3 years.
Battery Power Test: Performed immediately upon battery
insertion and periodically after every several hours.
FUNCTIONAL
True Motion Event Verification: 2 position selector - 1 (OFF) or
2 (ON) motion events.
Visual Indications:
LED Lights for about 3 seconds upon transmission of alarm &
tamper messages and upon motion detection in the walk test
mode.
LED Flashes during the power-up stabilization period, or after
restoring (pressing) the tamper switch.
LED does not light upon transmission of supervision
messages.
Rearm Timer: Rearms the detector 2 minutes after the last motion
detection. The detector reverts to the initial state if there is no
movement during 2 minutes. The timer is disabled in the walk test
mode.
WIRELESS
Frequency (MHz): 315 (U.S. version) or other frequency according
to local requirements.
Transmission Sequence: 3 data bursts at variable / random
intervals within 3 seconds.
Encoding: Over 16 million possible combinations.
Total Message Length: 36 bits.
Supervision Message: Signaling at 60-minute intervals (U.S.
version).
D-302924
Installation Instructions
• Programmable motion event counter.
• Very low current consumption
• Tamper switch for detector opening.
• White light protection.
• Elegantly styled, sturdy case.
Figure 1 – External View
MOUNTING
Ceiling Mounting: Maximum mounting height 3.6 m (12 ft)
ENVIRONMENTAL
RFI Protection: >10 V/m up to 2000 MHz.
Operating Temperatures: -10
Storage Temperatures: -20
Compliance with Standards: Designed to meet FCC Part 15.
PHYSICAL
Dimensions (diam. x H) : 86 x 24 mm (3-3/8 x 15/16 in).
Weight: 64 grams (2 oz)
Color: White
.
PATENTS
U.S. Patents 5,693,943 6,818,881 (other patents pending).
Figure 2 - DISC MCW PIR Coverage Pattern
C to 50 C (14 F to 122 F).
° ° ° °
C to 60 C (-4 F to 140 F).
° ° ° °
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