Data sheet

DB7

This range of rugged, intrinsically safe and weather-resistant sirens for use in potentially explosive atmospheres has been designed with high protection against the harsh environmental conditions encountered at sea and on land in the oil, gas and petrochemical industries.

The unit is available in 12V and 24V versions and for IIB or IIC gas groups. A non-certified, low-cost version is available for use in non-explosive atmospheres.

  • 4 Zones 0, 1, 2 and use in safe area.

  • Ex ia IIB / IIC T4.

  • ATEX approved Ex II 1G.

  • Non certified version weather resistant.

  • BASEEFA certified.

  • CUTR certified.

  • IP66 and IP67.

  • Certified temperature: -55ºC to + 70ºC.

  • GRP resistant to corrosion painted in red.

  • Up to 110 dB (A) output.

  • 27 tones, selectable by the user.

  • The tones comply with the UKOOA / PFEER guidelines.

  • Any two tones can be switched by the external power supply.

  • Stainless steel lid screws retained.

Material:

UV resistant glass reinforced polyester. Stainless steel cover screw

Finish:

Red painted as standard or according to customer specifications.

Voltage:

12V or 24V via a suitable barrier.

Power consumption:

Models 24V 34mA - 68mA.

Models 12V 25mA - 55mA.

Sound output:

107 ± 3dB (A) at 1 meter for the 12V and 24V IIB versions.

103 ± 3dB (A) at 1 meter for IIC 12V and 24V versions.

Typical value only - variable with tone.

Tone selection:

Switchable between two of the 27 tones by reversing the polarity of the power supply

Certified temperature:

-55ºC to + 70ºC

Weight:

1.0 kg.