dBAlert Manual.pub
Contents
1. INTRODUCTION According to industrial safety law areas subject to hazardous noise must be clearly defined and workers notified of the danger In most industrial settings the noise hazard will vary throughout the premises and employees are often mobile This is precisely where the Castle dBAlert personal noise activated warning unit comes into play dBAlert activates only when the noise exceeds a pre set level giving a clear visible and tactile warning to exposed workers that noise levels have become dangerous and that ear defenders must be worn Perhaps more importantly for the employee this means that they will also know when they can legally take them off The hyper bright warning LED is brilliantly lit when activated and is designed to catch the wearer s attention by using their peripheral vision giving a highly visible warning dBAlert also has a built in vibrating alert This gives the wearer the added warning of a 14 second mobile phone style pulsed vibration to bring attention to the fact that dangerous noise levels have been exceeded Being of rugged construction dBAlert is suitable for most industrial situations It comes complete with a pocket clip and powered using the integrated Power Switch which has a delay function built in to prevent accidentally turning the unit off dBAlert is a self contained unit housing it s electronics in a tough case and is easily set up to company specific levels meanin2. ctory set to 8OdBA TRIP TIME LED 30 seconds Vibrate 14 seconds CONTROLS Power on off button Power on indicator LED DETECTOR Characteristic Averaging FREQUENCY WEIGHTING A in accordance with IEC 61672 1 2002 Class 2 TIME RESPONSE Slow response 1000 mS MICROPHONE Built in Castle electret microphone BATTERIES 2 x MN2400 AAA Alkaline or NIMH Rechargeable Batteries BATTERY LIFE ProCell Alkaline Batteries gt 50 hours dependant on environment noise levels WARNING LED 1 x Hyper Bright LED pulsed through software control VIBRATING ALERT Mobile phone style vibrating motor for tactile warning approx 150Hz2 Pulses for first 15 seconds of LED warning DIMENSIONS Overall 95mm x 47mm widest x 24mm without clip or 29mm with pocket clip WEIGHT 70g with batteries Warranty and After Sales Service Castle Group Ltd design and manufacture precision instruments which if treated with reasonable care and attention should provide many years of trouble free service In the event of a fault occurring during the warranty period the instrument should be returned to Castle Group Ltd in its original packaging or to an authorised agent Please enclose a clear description of the fault or symptom An annual calibration is recommended to ensure that the unit is functioning as intended For warranty and service return to The Service Department Castle Group Ltd Salter Road Scarborough Business Park Scarborough N
3. g it will be ready for action within moments of leaving the box OPERATIONAL FEATURES Power LED Top View eO Front View personal noise activated warning unit www castiegroup co un Warning LED Microphone OPERATION dBAlert is clipped onto clothing with the microphone facing outwards If the localised noise exceeds the selected trigger level the hyper bright warning LED will begin to flash and the vibrating alert will pulse for 14 seconds Once the noise in the area falls below the threshold for more than 30 seconds the LED is extinguished and a few short pulses from the vibrate alert will be emitted The unit is factory set to 8OdBA and an internal switch enables the user to select one of 4 trigger levels The trigger level is set by the 2 DIP Switches inside the case as follows 1 2 80 Off Off 85 Off On 90 On Off 95 On On After setting the desired trip level insert a pair of AAA batteries and replace the cover When the power key is depressed both LEDs will briefly illuminate to show the unit has switched on and activated The power LED will continue to be illuminated while the battery level is sufficient to run the unit Once this LED begins to flash then the batteries will need to be replaced Hold the power key for 3 seconds to switch the unit off Technical Specifications MEASURING RANGE 80 dB to 103dB TRIP LEVELS User Selectable to 8OdBA 85dBA 90dBA and 95dBA fa
4. orth Yorkshire YO11 SUZ Telephone 44 0 1723 584250 Fax 44 0 1723 583728 Web www castlegroup co uk E mail techsupport castlegroup co uk Any misuse or unauthorised repairs will invalidate the warranty Damage caused by faulty or leaking batteries is not covered by the warranty dBAlert Personal Noise Activated Warning Unit
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