With forty-nine alarm tones to choose from these intrinsically safe sounders allow you to pick sounds which will penetrate the ambient background noise in your plant. Second and third stage tones are easily triggered by secondary control circuits. Tones are selected by DIP switches, and there’s also a volume control. A crystal controlled oscillator accurately defines the frequency and repetition rate of each alarm signal. This insures that multiple sounders set to the same tone(s) remain synchronized throughout your plant
Option 1 – single sounder installation:The BR385 Sounder requires a singleintrinsic 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 BR385 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.
Option 1 – mutual two-wire connection: The BA386 Beacon & BR385 Sounder Combination may be powered from a single intrinsic safety barrierproviding 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 BA386 Beacon requires a singleintrinsic safety barrier with safety/entity parameters not exceeding the following values: Uo/Voc=32V, Io/Isc=110mA, Po/Po=800mW.
Suitable barrier: GMI D1048S /D1049S / D5048S / D5049S using output “B” terminals in each case.
The BR385 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. Suitablebarrier: 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 beacon & sounder combos, use of multi-channel barrierfor economy:
Suitable barrier: GMI D1042Q(quad channel) with each output separately powering either a beacon or a sounder. Under no circumstances may two barrierchannel outputs be connected in parallel to power one beacon-sounder combination.
Note that while each beacon and sounder has it’s own dedicated barrier channel, a complete failure of the barrier module will negate all alarm notifications associated with it.
|IS-mA1 IS-Mini Alarm|
|Nominal Output||Nominal Output|
|No. of Tones||49 (UKOOA/PFEER compliant)|
|No. of Stages||3|
|Volume Control||Max. 100dB(A); Min. 90dB(A)- Tone 2|
|Effective Range||40m/131ft @ 1KHz|
|Supply Voltages||16-28Vdc via Zener Barrier or Galvanic Isolator|
|Stage Switching||DC units: negative or positive|
|Current||25mA typical when powered from|
|24v supply via 28v 300 Ohm|
|Housing Material||UL94VO & 5VA FR ABS|
|Housing Color||RAL3000 Red|
|Cable Entries||2 x M20 clearance gland knockouts|
|Custom configurations also available|
|0.5 to 2.5 mm^2|
|Operating Temp||(-)40 degrees to +60 C [-40 to +140F]|
|Storage Tem||(-)40 to 60C [-40 to +158F]|
|Relative Humidity||90% at 20C [68F]|
|II 1G Ex ia IIC T4 Ga (-40ºC <=Ta<= +60°C)|
|IS Class I, Zone 0, AEx ia IIC T4|
|IS Class l, Division 1, Groups A, B, C, D|
|0ExiaIICT4 IP65 -40° to +60°C|
Mining Version Installation Manual
EC Certificate of Conformity
Russian Ex Certificate
Russian Maritime Register
Declaration of Conformity
Producing a high frequency continuous tone, the IS-pA1 can be pulsed to produce different sounds. Utilising the supplied threaded lock nut the IS-pA1 mounts into a 28mm hole – ideal for applications in control panels where a fault indication or other process alarm is required.
|IS-pA1 Panel Mount Sounder|
|Nominal Output||89.6dB(A) @ 1m+/-3dB-Tone 2* [80.6dB (A) @ 10ft/3m]|
|No. of Tones||1- continuous tone|
|Voltage||16-28Vdc via Zener Barrier or Galvanic Isolator|
|Current||12mA typical when powered 24v|
|supply Zener Barrier|
|Housing Material||UL94VO & 5VA FR ABS|
|Housing Color||RAL7038 Grey|
|Mounting||Panel mount- 28.5mm|
|Operating Temp||-40° to +60°C [-40 to +140°F]|
|Storage Tem||-40° to +70°C [-40 to +158°F]|
|Relative Humidity||90% at 20°C [68°F]|
|Hazardous Area||ATEX / IECEx|
|II 1G Ex ia IIB T6 Ga (-30ºC <=Ta<= +60°C)|
|May be powered from any certified Zener barrier or galvanic isolator whose output parameters do not exceed:|
|Uo : 40VDC|
|Io : 660mA|
|Po : 1.3W (T1-T4)|
|Po : 0.6W (T5)|
|Po : 0.3W (T6)|
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