Maintenance and Care – Extending the Life of Your Hygrometers, Timers, and Clocks

Investing in quality instruments is only the first step. Proper maintenance ensures that your hygrometers, timers, and clocks continue to perform accurately and reliably throughout their expected service life. This guide provides practical maintenance tips for each product category.

General Maintenance Principles

Keep Records: Document all maintenance activities—cleaning dates, calibration schedules, repairs, and replacements. This helps identify patterns and plan preventive measures.

Follow Manufacturer Guidelines: Adhere to the recommended maintenance schedules and procedures in the product manual.

Train Your Staff: Ensure personnel responsible for maintenance are properly trained on safety, procedures, and documentation.

Maintenance for Hygrometers and Thermometers

Calibration: Calibration is the most critical maintenance activity for hygrometers. Follow a regular calibration schedule (typically annual for most industrial applications, more frequent for critical applications). Use NIST-traceable reference standards. Document all calibration results.

Cleaning: Clean sensor surfaces gently with a soft brush or compressed air to remove dust and debris. For capacitive sensors, avoid harsh chemicals that can damage the polymer film. Clean the housing and display with a mild detergent and soft cloth.

Battery Replacement: For battery-powered units, replace batteries according to manufacturer recommendations or when the low-battery indicator appears. Use the specified battery type to avoid damage.

Environmental Protection: Protect instruments from extreme temperatures, direct sunlight, and condensation. Ensure proper ventilation around the instrument.

Maintenance for Timers

Electrical Checks: Periodically check all electrical connections for tightness and corrosion. Inspect wiring for damage or wear. Verify power supply voltage stability.

Cleaning: Keep timers free from dust and debris that can accumulate on heat sinks and circuit boards. Use compressed air or a soft brush. Avoid liquid cleaners on electronic components.

Functional Testing: Periodically test timer accuracy against a reference standard. Verify that all inputs and outputs function correctly. Check alarms and indicators.

Battery Replacement (if applicable): For timers with battery backup, replace batteries according to schedule to maintain memory retention.

Maintenance for Clocks

Mechanical Movement Maintenance: For mechanical clocks, follow manufacturer recommendations for oiling and cleaning. Regularly check the escapement and gear train for wear.

Quartz Movement Maintenance: Primarily battery replacement. Clean battery contacts if corrosion is visible. Ensure hands are properly aligned and not touching the glass or each other.

Hygiene: Keep clock housings clean with a soft cloth. Avoid harsh chemicals on painted or plated finishes.

Preventive Maintenance Schedule

Signs That Maintenance Is Required

• Inconsistent readings – Hygrometer shows unusual fluctuations

• Timer drift – Timed processes become inconsistent

• Clock running fast or slow – Timekeeping is inaccurate

• Visible damage – Cracks, corrosion, or loose components

• Error codes – Display shows error messages

Our Maintenance Support
We offer calibration services, repair and replacement parts, and technical support for troubleshooting. Extended warranties and maintenance contracts are available for large installations.

Need maintenance support? Contact us for calibration services, spare parts, or technical assistance.