Intrinsically Safe Alarm Sounders
BR385 Intrinsically Safe Alarm Sounder & Optional Beacon
- Intrinsically safe
- Up to 103 dB(A) output
- 49 first stage, 21 second stage, and 9 third stage alarm tones
- PFEER compliant
- Volume control
- IP66 environmental rating
- Input overload protection
- Replacement for Yodalarm YO5
- Combine with a BA386 flashing beacon
- uses a single galvanically isolated barrier
- includes terminals for a ‘silence’ push button
- silence time is adjustable from 1 to 30 minutes
- Optional kit to combine the two unit
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.
BR385 Sounder Alone Recommendations
- 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
- Option 2 – multiple sounders, use of multi-channel barrier for economy:
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 & Beacon Barrier Recommendations
- 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:
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 Intrinsically Safe Alarm Sounder
- Intrinsically safe
- FM, ATEX, IECEx, & GOST-R certification
- Takes 16-28 VDC from suitable safety barrier
- Loud 100 dB(A) audible output
- Choice of 49 alarm tone combinations, 3 stages
- Effective range of 130 feet / 40 meters at 1 kHz
IP65 ABS flame retardant housing - End-of-line (EOL) resistor certification
| IS-mA1 IS-Mini Alarm | |
| Specifications | |
| Nominal Output | 100dB (A) @ 1m+/-3dB-Tone 2* [91dB (A) @ 10ft/3m] |
| 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 | |
| Zener barrier | |
| Ingress Protection | IP65 |
| Rating | Continuous |
| Housing Material | UL94VO & 5VA FR ABS |
| Housing Color | RAL3000 Red |
| Fixings: | Stainless Steel |
| 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] |
| Hazardous Area | ATEX/IECEx/FM |
| 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 | |
| GOST-R | |
| 0ExiaIICT4 IP65 -40° to +60°C | |
More Information about the IS-mA1
- Datasheet
- Installation Manual
- ANZEx Installation
- Mining Version Installation Manual
- IECEx Certificate
- ATEX Certificate
- FM Certificate
- VDs Certificate
- EC Certificate of Conformity
- Russian Ex Certificate
- RTN Permit
- Russian Fire Certificate
- Russian Maritime Register
- ANZEx Certificate
- Declaration of Conformity
- Declaration of Performance
- Get Help/Quote
IS-pA1 Panel Mount Sounder
The IS-pA1 is a compact, panel mount 90dB(A) intrinsically safe alarm buzzer.
| IS-pA1 Panel Mount Sounder | |
| Specifications | |
| Nominal Output | 89.6dB(A) @ 1m+/-3dB-Tone 2* [80.6dB (A) @ 10ft/3m] |
| No. of Tones | 1- continuous tone |
| Frequency | 2600Hz |
| Voltage | 16-28Vdc via Zener Barrier or Galvanic Isolator |
| Current | 12mA typical when powered 24v |
| supply Zener Barrier | |
| Ingress Protection | IP65 |
| Housing Material | UL94VO & 5VA FR ABS |
| Housing Color | RAL7038 Grey |
| Mounting | Panel mount- 28.5mm |
| Terminals | Spade Terminals |
| 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 |
| IS-pA1-G | |
| 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) | |
More Information about the IS-pA1 Panel Mount Sounder
