1. Why is team work time difficult to manage without the hour counter?
In the case of generators, air compressors, pumps and industrial machines, maintenance is often based on actual working hours and not on the schedule. Without an accurate Hour Meter, engineers can estimate working time based on production plans or operator records.
This can make planning for oil change, inspections, filter change, and other maintenance tasks difficult. In applications where the installation is running intermittently, the actual working time may differ significantly from the total time elapsed.
The HM-1 offers an easy way to record uptime directly on the device.
2. How can the HM-1 be used in generators?
2.1 working hours of tracking generator
Generators often need service after a certain number of working hours. With the generator hour meter, maintenance teams can directly see the uptime collected, rather than relying on a manual log.
HM-1 takes advantage of power time. After the connection to the corresponding circuit, the counter automatically collects the working time.
Its counting range of 0 to 99,999.99 hours makes it suitable for long working time monitoring.
2.2 Generator maintenance planning support
In standby, diesel and industrial generators, working time data can help engineers in planning:
For this reason, the Hour Meter can become a simple but important part of generator maintenance systems.

3. How can the HM-1 operate air compressors and industrial machines?
3.1 Monitoring the working time of the air compressor
Air compressors can operate frequently throughout the day, making schedule-based maintenance less accurate.
The air compressor hour meter can capture the actual working time, so that maintenance teams can plan a service planning based on machine consumption.
The HM-1 mechanical construction offers a direct display of the accumulated hours without complex programming and is therefore suitable for instrument panels and control systems.
3.2 Pumps, engines and production facilities
The same principle applies to pumps, motors, tools and other engines.
An industrial hour meter can help engineers answer a simple maintenance question:
How many hours has this machine really worked?
This information can support maintenance planning, recording equipment usage, and service planning.

4. What should engineers check before choosing the hour counter?
4.1 Voltage and frequency adjustment
HM-1 is for:
For applications in the US 60 Hz compatibility is particularly important when choosing an hour counter for industrial equipment.
The measuring device must always be adapted to the actual control voltage or the power source used in the application.
4.2 Consideration of requirements for installation and maintenance of panels
The HM-1 is available in 48 x 48 mm and 72 x 72 mm sizes, so engineers can choose the right configuration for the control panel installation.
In projects that require a panel mount hour meter, engineers must confirm available panel surfaces prior to installation.
Some versions of the HM-1 also support zero reset, which can be useful when working hours must be followed from a certain point of maintenance.

5. Where does the hour counter add the most value?
The Hour Meter is especially useful when maintenance times depend on the actual machine runtime.
Typical applications of the HM-1 include generators, air compressors, pumps, industrial machinery and equipment controls. Its mechanical effect, many AC/DC voltage options, 50/60Hz compatibility and long counting range make it a practical solution for easy uptime tracking.
Whether you choose an hour meter for preventive maintenance, an OEM equipment, or an industrial control panel, ATST can help you to: confirm the right HM-1 voltage and panel size for your application.
Contact ATST with your equipment voltage, frequency and installation size, and our team can help you select the appropriate HM-1 Hour Meter for your project.
Compay: WENZHOU HEYI ELECTRICAL CO.,LTD
Brand: HEYI/ASCT
Contact: Bethy
E-mail: heyi@heyiele.com
Tel: 86-13968747975