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This is the Noise Activated Warning Area Kit which includes the GA902 Noise Warning Sign and the GA902A Noise Warning Slave Sign. The Slave Warning Signs are powered by the Noise Activated Warning Sign, they don't have a microphone but instead simply triggered when the main Warning Sign triggers.
| Weightings | A |
|---|---|
| Application | Noise Level Indicators |
| Brand | Castle Group |
| Available Outside the UK? | Yes |
This is the Noise Activated Warning Area Kit which includes the GA902 Noise Warning Sign and the GA902A Noise Warning Sign Slave. The Slave Warning Signs are powered by the Noise Activated Warning Sign as they do not have a mic they are simply triggered when the Noise Activated Warning Sign triggers.
GA902 Noise Warning Sign
The GA902 Noise Warning Sign activates only when the noise exceeds a pre-set level allowing exposed workers to wear ear defenders only when absolutely necessary, as ear defenders are often a less than popular safety measure. According to industrial safety law, areas subject to hazardous noise must be clearly defined, and workers notified of the danger. In many cases, the noise hazard is intermittent and that's precisely the situation for which the GA902 was designed. This meter is suitable for most industrial situations as it has a rugged construction. The warning text is generally supplied to EC requirement but alternative languages and graphics are available to order. There is an optional remote microphone which enables the sign itself to be in a prominent position while the microphone can be placed closer to a major noise source, order as GA902R. You can fit the optional Remote-Beacon which greatly increases the warning impact, especially in a large area. It is a self-contained unit housing its electronics in a tough case and can be easily installed and set for action. The front panel text is available as standard in EC or USA forms, but it can be ordered in a variety of colours and in any language. The front panel is completely blank when idle but it is brilliantly lit when activated to give an easily noticed warning. It is a complete system so outputs from the master unit can also trigger other external devices such as machines or process cut-off actuators. Custom screen text can be obtained where necessary.
This is the GA902A Noise Warning Sign Slave which allow a repeated version of the noise activated sign message to increase visibility. It's possible to build up systems to suit just about any configuration of workplace and warning requirements, using this function along with the ability to link masters together.
| 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 (1000mS) |
| Microphone (standard) | Built in Castle 1/2" electret |
| Microphone (Remote) | Pre-polarised 1/2" (12.7mm) Condenser Microphone Sensitivity 12mV/Pa Capacitance 15pF; Preamp output impedance 550R Cable Mounted |
| Outputs | Switched AC power feed for external beacon; Change-over relay contact sets |
| Power | 220V to 240V AC,50Hz/60Hz or 100V to 120V AC,50Hz/60Hz (Select on order) |
| Illumination | Two 8w, 12" fluorescent tubes |
| Dimensions | Overall: 520 x 200 x 120 |
| Viewable Screen Area | 450 x 190 |
| Power | 220V to 240V AC,50Hz/60Hz or 110V to 120V AC,50Hz/60Hz(Select on order) |
| Illumination | Two 8w, 12" fluorescent tubes |
| Dimensions | Front: 500 x 240 Back: 300 x 240mm Width: 140mm |
| Viewable Screen Area | 450 x 190 |
