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Marsh Bellofram Automatic Timing & Controls LA7N Series Self-Powered LCD Counters
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Marsh Bellofram Automatic Timing & Controls LA7N Series Self-Powered LCD Counters
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Catalog excerpts
800.727.5646 automatictiming.com Automatic Timing & Controls LA7N Series Totalizers // LA7N Series 139 The LA7N product family consists of three (3) models; the LA7N-2 and LA7N-2R which require a switch closure for count input and LA7N-FR which employs a voltage input for count input. Models LA7N-FR and LA7N-2R are equipped with a button for reset on their front panel. Model LA7N-2 can only be reset by a remote switch. All models are compact and are battery powered for a broad range of applications. The liquid crystal display is seven figure with zero blanking. Count input speed is 30 CPS and is accomplished through a simple switch closure which is wired to the terminals on the rear of the counter for models LA7N-2R and LA7N-2. Snap switch, push-button or toggle switch, or a reed switch device are common input switches used with these models. Model LA7N-FR requires a voltage count input of 24 to 240 VAC or 6 to 240 VDC. Since the counter is battery powered, it will display count continuously and requires no memory saving attachments or circuitry. Panel mounting hardware is supplied with the counter. S e l f - P ow e r e d L CD C o u n t e r s LA7N-2 and LA7N-2R LA7N-FR \\\SPECIFICATIONS RESET Front Panel Button (2R and FR Models) External Contact — All Models DISPLAY LCD, H 7mm, W 3mm, Zero Blanking NUMBER OF DIGITS Seven COUNT INPUT Switch Closure —2R, —2 Models Voltage 24-240VAC, 6-240VDC; —FR Model COUNT SPEED 30CPS —2 and —2R Models 20CPS —FR Model OPERATING TEMPERATURE 14° to 131°F (-10° to 55°C) OPERATING POWER Internal Lithium Battery–Est. 7 Yr. Life TERMINALS Rear Mounted Screws MOUNTING Front Panel WEIGHT 0.19 lb. \\\DIMENSIONS (MILLIMETERS) \\\WIRING \\\ORDERING INFORMATION MODEL NUMBER DESCRIPTION LA7N-2 Switch Input, Remote Reset Only LA7N-2R Switch Input, Front Panel & Remote Reset LA7N-FR Voltage Input, Front Panel Reset
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