Intrinsically Safe Combination Sounder & Beacon

INTRINSICALLY SAFE COMBINATION SOUNDER & BEACON

IS-MC1 INTRINSICALLY SAFE ALARM SOUNDER & BEACON COMBINATION

  • Adds an array of six high-intensity LEDs
  • Prismatic lens in choice of five colors
  • Double flash at once or twice per second

The IS-MA1 is an economical alarm sounder designed for use in hazardous locations with power and control via commonly available safety barriers. A choice of 49 user selectable tones, plus second and third stage alerts enable unique signaling protocols to suit the location and process. An internal volume control is provided.

The addition of a flashing beacon on the IS-MC1 provides two modes of notification for an even greater level of safety. The sounder and beacon can be controlled in unison, or individually.

The IS-M Series are ideal for use in fire & gas detection and alarm systems, and the certification provides for the inclusion of end-of-line resistors.

Also see the companion stand-alone IS-MB1 beacon…click here
Mark of certification to GOST-R standards

IS-M Series Specifications
Model IS-MA1 Sounder IS-MC1 Combined Sounder & Beacon
Certification Factory Mutual: Class I, Division 1, Grp A-D; Class I, Zone 0, AEx ia IIC T4 ATEX & IECEx: II 1G EEx ia IIC T4 (-40°C<=Ta<=+60°C) GOST-R: 0ExiaIICT4 IP65 -40°C to +60°C
Operating Voltage 16-28VDC via Zener or galvanically isolated safety barrier
Current Draw 25mA typical when powered from 24VDC via asafety barrier; sounder has internal current limiting and reverse current protection 25mA each typical for beacon and sounder powered from 24VDC via separate safety barriers, 30mA total typical when beacon and sounder are powered from a common barrier; unit has internal current limiting and reverse current protection
Alarm Sound Output 100 dB(A) @ 1 m; effective range up to 130′ / 40 m @ 1kHZ Internal volume control
Alarm Sound Modes 49 user selectable tones, in up to 3 stages (PFEER/UKOOA compliant) Hear Sample Alarm Tones
Light Source Six high intensity LEDs with prismatic lens to optimize LED visibility
Light Output 23cd, double flash in two configurable modes: 1Hz/2Hz
Lens Colors Red, orange/amber, green, blue, clear
Dimensions 3.90″ h x 3.50″ dia. plus 0.25″ lens fastener protrusion; 99 h x 88.7 dia. plus 6.3 lens fastener protrusion (mm) 4.60″ h x 3.50″ dia. plus 0.25″ lens fastener protrusion; 116 h x 88.7 dia. plus 6.3 lens fastener protrusion (mm)
Operating Temperature -40 to +140°F / -40 to +60°C
Environmental Ingress protection: IP65 Housing material: UL94V0 & 5VA FR ABS Relative humidity: 90% max. @ 68°F / 20°C Ingress protection: IP65 Housing material: UL94V0 & 5VA FR ABS Lens material: polycarbonate. Relative humidity: 90% max. @ 68°F / 20°C
Cable Entry 2x M20 knockouts
Other End-of-line (EOL) resistor certified for fire & gas alarm systems

Data Sheet

User Manual

FM Certificate

ATEX Certificate

IECEx Certificate

Get Help/Quotation

Data Sheet

User Manual

FM Certificate

ATEX Certificate

IECEx Certificate

Get Help/Quotation

Option 1 – single sounder installation: The IS-MA1 Sounder requires a single intrinsic safety barrier with safety/entity parameters not exceeding the following values: Uo/Voc=28V, Io/Isc=93mA, Po/Po=660mW.

         Suitable barrier: GMI D1048S / D1049S / D5048S / D5049S using output “C” terminals in each case.

Option 2 – multiple sounders, use of multi-channel barrier for economy:

           Suitable barrier: GMI D1042Q (quad channel) with each output separately powering an individual IS-MA1 sounder.
Note that while each sounder has it’s own dedicated barrier channel, a complete failure of the barrier module will affect all alarm notifications associated with it.

Sounder Stage 2 Control (only): D1044S (single channel)

Sounder Stage 2 & 3 Control: D1044D (dual channel, one channel used per control line)

Option 1 – mutual two-wire power connection:

  • The IS-MC1 Combination Beacon & Sounder may be powered from a single intrinsic safety barrier providing 16VDC @ 35mA and with safety/entity parameters not exceeding the following values: Uo/Voc=28V, Io/Isc=93mA, Po/Po=660mW
  • Suitable barriers: P&F KFDO-SD2-Ex1.1045; MTL5025

Note that failure of the single barrier will negate both alarm notification modes.

Option 2 – high integrity four-wire connection, beacon and sounder powered separately:

  • The beacon requires a single intrinsic safety barrier with safety/entity parameters not exceeding the following values:Uo/Voc=28V, Io/Isc=660mA, Po/Po=1.2W.Suitable barrier:GMI D1048S / D1049S / D5048S / D5049S using output “A” terminals in each case.
  • The sounder requires a single intrinsic safety barrier with safety/entity parameters not exceeding the following values:Uo/Voc=28V, Io/Isc=93mA, Po/Po=660mW.
  • Suitable barrier: GMI D1048S / D1049S / D5048S / D5049S using output “C” terminals in each case.

Note that the failure of one barrier will leave the other alarm notification mode working.

Option 3 – multiple IS-MC1 beacon & sounder combos, use of multi-channel barrier for economy:

  • Suitable barrier: GMI D1042Q (quad channel) with each output separately powering either a beacon or a sounder. Under no circumstances may two barrier channel outputs be connected in parallel to power one beacon-sounder combination.

Note that while each beacon and sounder has it’s own dedicated barrierchannel, a complete failure of the barrier module will negate all alarm notifications associated with it.

  • Sounder Stage 2 Control (only): D1044S (single channel)
  • Sounder Stage 2 & 3 Control: D1044D (dual channel, one channel used per control line)

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