D-301296 1

MCT-425, MCT-425C

Supervised Wireless PowerCode Smoke Detector

Installation Instructions

1. DESCRIPTION AND APPLICATIONS

The MCT-425 and MCT-425C are smoke-automatic fire detectors

with integral audible signal for open area protection, designed to

sense smoke (not gas, heat or flame) and fitted with a PowerCode

type UHF transmitter. MCT-425C is for CANADA only.

The smoke detector provides early warning of developing fire by

sounding an alarm with its built-in alarm horn, and by transmitting a

coded alarm signal to a PowerCode receiver or to a compatible

wireless alarm control panel. For UL approved installation use only

PowerMax+ control panel.

It must be borne in mind, though that effective prewarning of fire

accidents is only possible if the detector is located, installed and

maintained as described here.

YELLOW

LED

TEST BUTTON

RED LED

Figure 1. General View

2. SPECIFICATIONS

SMOKE DETECTOR

Alarm Sound Level: 85 dB at 3 m (10 feet)

TRANSMITTER AND CODING

Operating Frequency (MHz): 315, 433.92, 868.95, 869.2625 or

other frequency according to local requirements.

Transmitter's ID Code: 24-bit digital word, over 16 million

combinations, pulse width modulation.

Overall Message Length: 36 bits

Supervision: Automatic signaling at 60-minute intervals (315

MHz version), 15-minute interval (433.92, 868.95, 869.2625 MHz

versions) or according to the local standards.

Tamper Alerts: Tamper event (removal of the unit from its bracket)

is reported once. Tamper restore is reported when the tamper

switch is restored.

Transmission Indicator: Yellow LED lights upon transmission

(visible only when Switch SW-1 is ON).

ALARM REPORT:

Every 20 sec. for the first 3 minutes.

Every 3 min. for the next 27 minutes.

Alarm stops reporting after 30 min., or if the detector goes into

"alarm restore".

ELECTRICAL DATA

Power Source: 9 Volt alkaline or lithium.

Operation Voltage: From 7.2 V to 9 V.

Current Drain: 28 µA standby, 20 mA in operation

Smoke Density:

Europe: 0.15 – 0.2 dB/m

USA & CANADA: 0.61%/ft to 1.27%/ft

Cover Range: 50 cubic meters (1765.5 cubic ft.)

Battery Life Expectancy:

Alkaline: at least 1 year (for typical use) for battery types

Eveready (Energizer) #E522, Duracell #MN1604, GP GP1604AU

Lithium: at least 1 year (for typical use) for battery type

Ultralife # U9VL-V.

Battery Supervision: Automatic transmission of battery status

data as part of any transmitted message.

Audible and Visual Low Battery Warning: Built-in horn beeps

every 30 seconds simultaneously with red LED flashing (for up to

30 days when the battery voltage drops).

Audible and Visual Degraded Chamber Sensitivity Warning:

Built-in horn beeps every 30 seconds in the middle of red LED

flashing intervals – indicate that the sensor should be cleaned.

Clean Warning Transmission: A clean (maintenance) signal is

transmitted when the detector's chamber sensitivity becomes

degraded.

Note: This transmission applies to the PowerMax+ control panel only

PHYSICAL DATA

Operating Temperature: 0°C to 50°C (32°F to 122°F).

Relative Humidity: 10% to 85%

Dimensions: 130 mm (5.12") x 75 mm (2.95")

Weight (including battery): 272 g (9.6 oz)

Compliance with Standard:

MCT-425 Europe: (868.95, 433.92 and 869.2625 MHz):

CE/RTTE - EN 30220, EN 301489, EN 50130-4. (UK) BS

5446, EN54-7, EN 14604, UK (868.95 MHz).

MCT-425 USA (315MHz): (FCC) CFR47 Part 15, UL 268

MCT-425C CANADA: (IC) RSS210, (ULC) CAN/ULC-S529-02

3. INSTALLATION

3.1 Disassembly

Separate the unit from its mounting bracket as shown in Figure 2.

BRACKET DETECTOR

Hold the

bracket with

one hand

Rotate the

detector as

shown and

pull it from

the bracket

Figure 2. Separating the Detector from Its Bracket

3.2 Setting the Function Switch

The MCT-425 and MCT-425C have a 4-position DIP switch

function selector (see Figure 3). The switch levers are numbered 1

to 4, and each switch allows you to select one of two options.

Set the function switches as desired. The ON position is indicated

on the switch body.

Table 1. Function switch settings

SW. Marking Pos. Selected Option Default

SW-1

LED ON

OFF

Yellow LED will light upon transmission

Yellow LED is disabled

SW-2

RST ON

OFF

“Restore” events reported

“Restore” events not reported

SW-3



OFF

Do not use!

OFF

SW-4



OFF

Do not use!

OFF

Visonic MCT-425 - Brochure Manual

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