GA902 Noise Warning Sign


GA902 Noise Warning Sign
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Product SKU: GA902


Product: GA902 Noise Warning Sign

Noise Activated Warning Sign GA902

According to industrial safety law, areas subject to hazardous noise must be clearly defined, and workers notifies of the danger. In many cases, the noise hazard is intermittent and that's precisely the situation for which the GA902 was designed.

The GA902 activates only when the noise exceeds a pre-set level allowing exposed workers to wear eardefenders - often a less than popular safety measure - only when absolutely necessary.

Being of rugged construction, the GA902 is suitable for most industrial situations. It is also available in Stainless Steel for the food and pharmaceutical industry. Warning text is generally supplied to EC requirements, but alternative graphic and languages are available to order.

Fitting the optional Remote-Beacon (GB001) greatly increases the warning impact, especially in large area.

The GA902 is a self-contained unit housing its electronics in a tough case, and is easily installed and set for action. The front panel text is available as standard in EC or USA forms, but can be ordered in any language and a variety of colours.

The front panel is completely blank when idle but brilliantly lit when activated to give an easily noticed warning. Outputs from the master unit can also trigger other external devices such as machines or process cut-off actuators - a complete system.

OPERATION

The microphone receives noise and passes it to the built in sound level meter where it is compared to the pre-set trigger level which if exceeded, switches on the twin fluorescent lamps to illuminate the warning sign. Once the noise in the area falls below the threshold for more than a pre-set time the lamps are extinguished.

SETTING THE ACTIVATED NOISE LEVEL

The unit is factory calibrated to 85dBA and a series of internal switches enables the user to select the desired trigger level in steps of 2.5dB

GA902 SPECIFICATIONS

MEASURING RANGE

75 dB to 112.5dB steps switch selectable 2.5dB variable calibration control (factory set)

TRIP TIME

User adjustable 5 to 30 seconds

CONTROLS

Push to test button Mains power 'on' indicator

DETECTOR

Characteristic: Averaging

FREQUENCY WEIGHTING

'A' in accordance with IEC651 Type 2

TIME RESPONSE

Slow response (1000 mS)

MICROPHONE

Built in Castle electret

OUTPUTS

Switched AC power feed for external beacon Change-over relay contact sets

POWER

200v to 240v AC, 110v to 120v AC, 50Hz/60Hz (240v version supplied as standard unless otherwise stated at time of order)

ILLUMINATION

Two 8w, 12" fluorescent tubes

BEACONS

The GA902 is available with an optional Remote Beacon, specify GB001 or with Mini-beacon, specify GB003

DIMENSIONS

Overall: 520 x 200 x 120

Viewable Screen area: 450 x 190


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