LM-HH2AS-H21

Input Type:	--
Weight:	0.039 lb (17.69g)
Operating Temperature:	-40°C ~ 85°C
Ingress Protection:	IP67 - Dust Tight, Waterproof
Termination Style:	Quick Connect - 0.250" (6.3mm)
Mounting Type:	Panel Mount
Panel Cutout Dimensions:	Rectangular - 36.58mm x 23.88mm
Reset:	Non-Resettable
Voltage - Supply:	9 ~ 64VAC/DC
Output Type:	--
Series:	LM
Display Characters - Height:	0.275" (7.00mm)
Display Type:	LCD - Black Characters
Number of Characters Per Row:	6
Time Format:	99999.9hrs
Count Rate:	--
Operating Mode:	Up
Type:	Time Counter (Hour Meter)
Part Status:	Not For New Designs

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Panel Meters - Counters, Hour Meters - LM-HH2AS-H21 Application Field and Working PrincipleThe LM-HH2AS-H21 is an ideal application for panels and counters. It is a highly accurate hour meter that can keep track of time, from hours to days, from tenths of a second to days of operation. Its precision is suitable for applications that need reliable long-term performance.The LM-HH2AS-H21 is based on a Quartz Crystals Time Base, which guarantees reliable and accurate time measurement. The time base is a special crystal integrated with a microcontroller for accuracy. It is also equipped with a low-cost, high-precision frequency-to-voltage converter. This converter converts the frequency of the quartz crystal into a digital signal, enabling accurate measurements.The LM-HH2AS-H21 features include a timer, accuracy, and reliability. The timer is capable of measuring periods from 0.1s to 1000 days, with an accuracy of 0.01%. Its minute resolution is 0.1s and it measures time in hundredths of a microsecond. The timer also boasts a frequency control range of 0.01Hz to 50MHz, enabling accurate and repeatable measurements.The accuracy of the LM-HH2AS-H21 is excellent, with a maximum deviation of 1%. The product is highly reliable and hardwearing, with a rated life expectancy of 1 million hours or 10 million operations. It is designed to operate in harsh environments, from 35°F to 140°F, and it is rated for a minimum voltage of 8.5V.The LM-HH2AS-H21 is used in panel and counter applications where precise and reliable timekeeping is necessary. It is perfect for applications where accuracy is essential, such as in industrial machinery, automotive systems, and in scientific experiments. It is also suitable for use in electricity meters, accounting systems, and in gaming devices.When using the LM-HH2AS-H21, the main parameters must be set correctly. The quartz crystal is pre-calibrated, but it can be fine-tuned for exact measurements. The operating frequency, voltage, and duty cycle must be set correctly. The accuracy can also be improved by using the temperature compensation feature.To ensure the best performance, the device should be installed and maintained correctly. The crystal should be mounted securely and the connections should be kept clean and free of any dirt or corrosion. All connections should be properly insulated and the environmental conditions should be monitored. The LM-HH2AS-H21 must also be periodically checked for accuracy.In summary, the LM-HH2AS-H21 is an ideal application for panels and counters. It offers high accuracy and reliability, and it is suitable for use in a wide range of industrial applications. Its quartz crystal time base guarantees accuracy and its frequency-to-voltage converter allows precise measurements. All of these features make the LM-HH2AS-H21 an outstanding choice for panel and counter applications.

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