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THE CHARGE/CONTACTOR CONTROL UNIT IS A REPLACEABLE UNIT IN POWER FEED EQUIPMENT. IT IS HOUSED IN THE CONVERTER REAR CHASSIS AND ITS PURPOSE IS TO PROTECT THE 50V STATION SUPPLY AGAINST THE CURRENT SURGE THAT WOULD OTHERWISE HAPPEN WHEN THE HV CONVERTERS ARE CONNECTED TO THAT SUPPLY. THE UNIT IS 100MM BY 100MM BY 40MM.
THE PRODUCT IS KNOWN AS " GAS DISCHARGE TUBE ". THESE ARE SINGLE PROTECTION DEVICES. THEY PREVENT DAMAGE TO TELEPHONY & DATALINE PROTECTION EQUIPMENT BY CREATING A SHORT CIRCUIT WHEN THE ELECTRICAL SURGE EXCEEDS THE SURGE SPARKER VOLTAGE. WHEN THE SURGE PASSES & THE SYSTEM VOLTAGE RETURNS TO NORMAL LEVELS THE GAS DISCHARGE TUBE RETURNS TO ITS HIGH IMPEDENCE.
THE PRODUCT IS A DETECTOR MOUNTING BASE FOR UL-COMPLIANT FIRE ALARM SYSTEMS INCORPORATING SHORT CIRCUIT ISOLATION. THE PRODUCT COMPRISES OF A CIRCULAR POLYCARBONATE PLASTIC BASE CONTAINING METAL TERMINALS, FASTENERS, SCREWS AND AN LED. WHEN A FAULT OR SHORT CIRCUIT IS DETECTED THE FITTED LIGHT EMITTING DIODE (LED) ILLUMINATES AND THE MOUNTED DETECTOR IS ISOLATED FROM THE REST OF ITS FIRE ALARM NETWORK. THE ISOLATION SELF-RESETS WHEN THE FAULT CLEARS. THE PRODUCT IS SUPPLIED WITH THREE CONNECTOR TERMINALS AS STANDARD. A LOCKING SCREW IS PROVIDED TO PREVENT UNAUTHORISED REMOVAL OF ANY MOUNTED DETECTOR. THE SHORT CIRCUIT ISOLATION FEATURE IS INTENDED ONLY TO ISOLATE THE MOUNTED DETECTOR FROM THE REST OF ITS FIRE ALARM NETWORK IN THE EVENT OF A FAULT, IT IS NOT INTENDED AS A PROTECTIVE ELECTRICAL SAFETY FEATURE. THE PRODUCT HAS NO STAND-ALONE USE. NO QUANTITATIVE, PHYSICAL, CHEMICAL OR SPECTROSCOPIC ANALYSIS IS CARRIED OUT BY THIS DEVICE. ITS PRIMARY FUNCTION IS TO ACT AS A MOUNTING BASE FOR CONNECTION OF UL-COMPLIANT SMOKE OR HEAT DETECTORS. THE PRODUCT IS IMPORTED SPECIFICALLY FOR THE COMPANY AND CANNOT BE RESOLD AS AN OFF-THE-SHELF PRODUCT IN GENERAL STORES NOR BY ANY NON-SPECIALIST OUTLET. THIS PRODUCT DOES NOT HAVE AN INTEGRAL SOUNDER NOR ANY RECORDING DEVICE. WHILE IT CAN BE SOLD INDIVIDUALLY IT IS MORE COMMONLY DESPATCHED IN LARGER CARDBOARD BOXES CONTAINING 10 OR MORE UNITS. FEATURES OF THE DETECTOR BASE UNIT: OPERATING VOLTAGE: 20 VDC TO 38 VDC. (SUPPLIED BY LOOP) CURRENT CONSUMPTION : 0.12 MA (STANDBY) & 22 MA (ACTIBATED) LED VISUAL INDICATOR : SHORT CIRCUIT - SOLID YELLOW LED DIMENSIONS : 105 MM X 22.5 MM WEIGHT : 80 G
THIS IS A SHORT-CIRCUIT ISOLATOR BASE WHICH HAS A WATERPROOF CONNECTION INTENDED SPECIFICALLY FOR USE WITH FIRE ALARM CONTROL SYSTEMS. THIS PRODUCT COMPRISES OF A CIRCULAR POLYCARBONATE PLASTIC BASE CONTAINING METAL TERMINALS (CONNECTORS), SCREWS, FASTENERS, SEALS PLUS ELECTRICAL CIRCUITRY. THE SHORT CIRCUIT FUNCTION IS FULLY TRANSPARENT AND DOES NOT REQUIRE ANY SETTINGS AND WAS DEVELOPED TO PROVIDE SHORT CIRCUIT PROTECTION IN THE DETECTOR BASE. SMOKE, HEAT OR FLAME DETECTORS CAN BE CONNECTED TO THIS ADAPTER WHICH HAS A 2MA REMOTE OUTPUT. THIS PRODUCT DOES NOT HAVE ANY INTEGRAL AUDIO-VISUAL WARNING EQUIPMENT NOR ANY RECORDING DEVICE. THE SHORT CIRCUIT PROTECTION IS NOT INTENDED AS A SAFETY FEATURE AND ITS PURPOSE IS TO ENSURE CONTINUED FUNCTION OF THE REMAINDER OF THE FIRE ALARM SYSTEM IN THE EVENT OF A SHORT OR LOCAL FAILURE. NO VARIANT OF THIS PRODUCT CAN BE USED IN ANY STAND- ALONE CAPACITY AND THIS PRODUCT CANNOT BE RE-SOLD AS AN "OFF THE SHELF" PRODUCT IN GENERAL STORES OR BY ANY NON-SPECIALIST OUTLET. WHILE IT CAN BE SOLD SINGLY IN ITS OWN SMALL CARDBOARD BOX IT IS MORE COMMONLY DESPATCHED WITHIN LARGER CARDBOARD BOXES CONTAINING 10 OR 100 UNITS.
THIS IS A SMOKE, HEAT OR FLAME DETECTOR MOUNTING BASE WHICH ALSO OFFERS SHORT CIRCUIT ISOLATION PROTECTION AND WATERPROOF CONNECTION. THIS PRODUCT IS NOT DESIGNED FOR THE PURPOSES OF PHYSICAL OR CHEMICAL ANALYSIS AND DOES NOT HAVE AN INTEGRAL SOUNDER OR RECORDING DEVICE. THIS PRODUCT COMPRISES OF A CIRCULAR PLASTIC (ABS TYPE) CASING CONTAINING METAL FASTENINGS AND CONNECTORS (TERMINAL). THE 2MA REMOTE OUTPUT TERMINALS(NOT EXCEEDING 16A , HOLD THE CONNECTED DETECTOR IN PLACE AND ALSO FACILITATE TRANSMISSION OF BOTH ELECTRICAL POWER AND DATA TO AND FROM THE CONNECTED DETECTOR. THE PURPOSE OF SHORT CIRCUIT ISOLATION IS TO ISOLATE THE DETECTOR FROM ITS FIRE ALARM NETWORK IN THE EVENT OF A FAULT OR ALARM - IT IS NOT INTENDED AS A PROTECTIVE SAFETY MEASURE. THE SHORT CIRCUIT ISOLATION FUNCTION IS FULLY TRANSPARENT AND DOES NOT REQUIRE SETTING. THIS PRODUCT CANNOT BE USED ON A STAND-ALONE BASIS: IT CAN ONLY BE USED AS PART OF AN FIRE ALARM CONTROL SYSTEM. IT CAN BE SOLD SINGLY IN ITS OWN SMALL CARDBOARD BOX, BUT NORMALLY SOLD IN LARGER CARDBOARD BOXES CONTAINING 10 OR 100 UNITS.