Mechanical Hour Meter, AC/DC

Details

Q1: What is a mechanical hour meter?
A1: A mechanical hour meter is a device used to record the total operating time of equipment. It automatically accumulates running hours whenever the machine is powered on, helping users monitor usage without manual tracking. Mechanical hour meters are commonly used for maintenance scheduling, equipment servicing, and operational tracking. Since the recorded time is continuous and typically non-resettable, the data remains reliable for lifetime usage records, rental billing, and machine performance management.

Q2: What is the difference between a mechanical hour meter and a digital hour meter?
A2: A mechanical hour meter uses gear machinery for timing with no built-in battery, permanently retains all recorded hours after power loss and cannot be manually reset or altered, boasts a sealed waterproof and anti-vibration casing stable for dusty, humid, bumpy heavy-duty equipment such as excavators and marine engines with minimal maintenance; a digital hour meter relies on electronic circuits and LCD screens, generally needs backup batteries to save data (which will disappear once the battery runs out), allows users to reset runtime records easily, is sensitive to intense vibration, moisture and unstable voltage, has a limited display lifespan and requires periodic battery replacement, and its screen is hard to read under bright direct sunlight.

Q3: Can the mechanical hour meter be reset?
A3: Most mechanical hour meter models do not support reset or zero clearing. It features irreversible forward cumulative timing with no reset button or hidden clearing function. The mechanical digit wheels lock the recorded running hours permanently, and the data cannot be artificially modified or erased, which effectively prevents tampering and guarantees credible hour records for equipment maintenance, rental billing, and second-hand machinery assessment.

Tips: How does the mechanical hour meter start timing?

The AC/DC hour meter automatically begins counting hours as soon as voltage is connected to its positive and negative terminals. No extra manual operation is needed; it stops recording once power is cut off, and all recorded hours will be permanently retained.

Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.

What is covered?

SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.

What is not covered?

• Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
• Expendable parts.
• Routine cleaning or normal cosmetic and mechanical wear.
• Damage from misuse, abuse or neglect.
• Damage from use of parts other than SISCO approved.
• Damage from use outside the product’s usage or storage parameters.
• Damage from use of parts not sold by SISCO.
• Damage from modification or incorporation into other products.
• Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
• Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.