WERMA Illuminates
01 March 2009
WERMA has manufactured a wide range of optical and audible signal devices for panel build and general industry applications for over 50 years. The company enjoys a first-class reputation for proven quality and innovative designs, and by looking at its offerings, it’s easy to see why
WERMA’s product range consists of signal towers, beacons, sirens, buzzers and horns in a wide range of colours, light pictures and sound emission levels, with a comprehensive range of accessories also available.
The basic range of series 230 and 231 installation beacons for the panel builder consists of M22 and M20 permanent light LED beacons available in red, yellow and clear. They are ideal for installation in limited spaces due a short thread.
The 107 and 109 series electronic buzzers have a 22.5mm cut out, and are thus ideal for the panel builder. The buzzer is available with a continuous or pulse tone, generating a sound output of 80 dB. In addition, the units have a high protection rating (IP65) and a typical life in excess of 5000 hours.
The LED/Buzzer Combination 450 with acknowledgement function from WERMA sets new standards for optical-acoustic signalling; the combination unites a very bright light signal with the powerful sound of a buzzer. This product also features a unique acknowledgement function: by gently pressing the front surface of the product, the audible signal can be turned off in a matter of seconds. The acknowledgement signal is sent to the control unit over an electronic switch and the malfunction is only indicated by the optical signal.
A cornerstone of the product range is the Kombi71 range of signal towers and accessories. Modular in design, the range consists of a wide range of LED and filament light pictures, permanent, flashing, blinking and rotating.
A number of innovative accessories for this signal tower are proving very popular in a wide number of applications. One example is the recently launched vocal element for KombiSign 71, a device that can be easily integrated into the existing signal tower technology but which can vastly improve the level of communication between machine and operator.
The vocal element works like a simple MP3 player. The tune/message of choice is loaded into the unit from a PC using just a USB cable. The unit can replay sounds, songs and recorded messages to operators when the machine being monitored goes into “fault” mode and activates the signal device. What’s more, excellent sound quality with a variable sound output of up to 88dB allows up to 15 independent messages with a total time of around one hour, making key messages meaningful and unambiguous.
Another coup in the KombiSign range is the self adjusting siren element, the key feature of which is that sound output automatically adjusts itself to 5dB above the background noise level. The output level varies between 80dB and 100dB. This feature ensures that notification of the fault can still be heard even where a conventional siren would be drowned out by a sudden inrush of noise.
The GSM transmitter element allows for very simple, yet extremely effective, remote warning of a fault. The device, effectively a mobile ‘phone transmitter, sends a warning of a machine malfunction direct to your mobile phone without the need for any additional hard wiring/telephone line or system programming.
The latest addition to the range of light elements for the signal tower is the EVS light element - Enhanced Visibility System. A microprocessor generates random light signals. This gives the light a very “agitated” character which proves highly effective – even when seen out of the corner of the eye. Research has demonstrated that the brain acclimatises itself to regular and repetitive audible and optical signals and can therefore ‘switch off’ the warning that these signals are giving.
Irregular light impulses can circumvent the brain’s filter function. Random light signals fail to generate an acclimatisation effect and the brain is unable to escape the stimulus, even when the flickering continues for an extended period.
All WERMA products are manufactured to strictly controlled quality standards (DIN EN ISO 9001:2000).
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