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Overview

Honeywell MCU (microcontroller unit) LCD (liquid crystal display) Hour Meters and Counters, LM Series, are sealed digital instruments designed to monitor and record elapsed running time, normally displayed in hours and tenths of hours. These devices are used to log running time of equipment or counts of equipment use for potential use in transportation applications to assure proper maintenance of expensive machines or systems, as well as warranty claims and rental-use tracking. This maintenance typically involves replacing, changing, or checking parts, belts, filters, oil, and lubrication of heavy duty equipment, or running condition of engines, motors, and blowers, to name a few.

These devices can feature up to a 40-year memory data retention (without power) to provide customers with a long data retention capability within their desired application. The large 7 mm display eases readability and offers backlight options and a running indicator. Sealing to IP67 (front)/IP66 (rear) designed to provide enhanced durability. The hour meter also features a long reset time to offer customers the protection against malfunction of reset.

The LM Series offers customization options including the customer’s logo, Honeywell logo, or a black face, as well as numerous customizable bezel options.

Documents

TITLE DOCUMENT TYPE LANGUAGE SIZE
LM Series MCU (Microcontroller Unit) LCD Hour Meter Product Sheet Datasheet English 1MB
50082092: LM Series MCU (Microcontroller Unit) LCD Hour Meter Installation Instructions Installation Instructions English 593KB
True Time Stamp - Hour Meters Case Study English 345KB
Sensors and Switches in Front Loaders Application Note English 169KB
LM Series MCU (Microcontroller Unit) LCD Hour Meter Nomenclature Tree Product Nomenclature Tree English 876KB
Hour Meters Line Guide Product Line Guide English 571KB
Industrial Product Line Card Line Card/Selection Chart English 571KB
Controls, Monitors, and Pressure Switches Range Guide Product Range Guide English 2MB
Transportation Range Guide Product Range Guide English 4MB

Browse ac/dc Hour Meters - LM Series Products

Product Product Type Mounting Hours Accuracy Termination
LM-HH2AS-H11 MCU (Microcontroller Unit) LCD Hour Meter 2 Screw 0 to 99,999.9 hours ±200 ppm/hour 1/4 inch Male Blade
LM-HH3AS-H11 MCU (Microcontroller Unit) LCD Hour Meter 2 Screw 0 to 99,999.9 hours ±200 ppm/hour 1/4 inch Male Blade
LM-HH4AS-H11 MCU (Microcontroller Unit) LCD Hour Meter 2 Screw 0 to 99,999.9 hours ±200 ppm/hour 1/4 inch Male Blade
LM-HHFAS-H11 MCU (Microcontroller Unit) LCD Hour Meter 2 Screw 0 to 99,999.9 hours ±200 ppm/hour 1/4 inch Male Blade

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