I. Routine Maintenance Cycle
1. Daily Maintenance: Performed after each use, including flushing tubing, cleaning titration cups, wiping syringes, and checking seals.
2. Weekly Maintenance: Perform electronic balance calibration, electrode calibration (if applicable), and check the condition of moving parts.
3. Monthly Maintenance: Deep clean the liquid passages, check for aging of silicone tubing, and verify system repeatability.
4. Comprehensive Maintenance (Every 6 Months): Systematically inspect all critical components, replace consumable parts (such as seals and silicone tubing), perform overall machine performance calibration, and update the control software (if applicable).
✅ Note: In GMP-compliant scenarios such as pharmaceuticals and medical testing, it is recommended to synchronize the comprehensive maintenance cycle with external metrological calibration, with verification by a professional organization every 6 months to ensure data traceability.
II. Key Factors Affecting Maintenance Cycles
1. Usage Frequency: For equipment operating continuously for more than 8 hours daily or more than 50 times per week, it is recommended to shorten the comprehensive maintenance cycle to once every 3 months to prevent wear and tear on the drive mechanism that could lead to decreased accuracy.
2. Liquid Characteristics: When handling high-viscosity, highly corrosive, or easily crystallizing liquids (such as dye mother liquor, concentrated acid or alkali solutions), the risk of residue is high, requiring increased maintenance frequency. A comprehensive disassembly and cleaning should be performed every 3 months.
3. Environmental Conditions: In high-temperature, high-humidity, or dusty environments, electronic components and moving parts are more prone to aging. It is recommended to dynamically adjust the maintenance plan based on environmental monitoring results.
4. Equipment Type
Pipeline-free Design Models (e.g., Wuxi Kelinan Technology Equipment): Maintenance is lighter due to the elimination of pipeline cleaning requirements, allowing for a 6-month maintenance cycle.
Traditional Pipeline Systems: Pipelines are prone to blockage; a comprehensive check of fluid flow patency is recommended every 3 months.
III. Core Contents of Comprehensive Maintenance
A complete comprehensive maintenance should include:
1. All silicone tubing and O-ring seals
2. Inspect and lubricate the lead screw, guide rails, and motor drive components
3. Clean or replace the titration head and needle assembly
4. Perform repeatability and accuracy verification of the entire machine
5. Back up the operation log and check the stability of the control system
🔧 Recommendation: Establish a maintenance log to record the date of each maintenance, replaced parts, calibration results, and operator, facilitating quality auditing and fault tracing.
